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Электронный компонент: TDA8783HL

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DATA SHEET
Product specification
Supersedes data of 1998 Jul 31
File under Integrated Circuits, IC02
1999 Jun 25
INTEGRATED CIRCUITS
TDA8783
40 Msps, 10-bit analog-to-digital
interface for CCD cameras
1999 Jun 25
2
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
FEATURES
Correlated Double Sampling (CDS), AGC, 10-bit ADC
and reference regulator included, adjustable bandwidth
(CDS and AGC)
Fully programmable via a 3-wire serial interface
Sampling frequency up to 40 MHz
AGC gain from 4.5 to 34.5 dB (in 0.1 dB steps)
CDS programmable bandwidth from 4 to 120 MHz
AGC programmable bandwidth from 4 to 54 MHz
Standby mode available for each block for power saving
applications 20 mW (typ.)
6 dB fixed gain analog output for analog iris control
8-bit and 10-bit DAC included for analog settings
Low power consumption of only 483 mW (typ.)
5 V operation and 2.5 to 5.25 V operation for the digital
outputs
TTL compatible inputs, TTL and CMOS compatible
outputs.
APPLICATIONS
CCD camera systems.
GENERAL DESCRIPTION
The TDA8783 is a 10-bit analog-to-digital interface for
CCD cameras. The device includes a correlated double
sampling circuit, AGC and a low-power 10-bit
Analog-to-Digital Converter (ADC) together with its
reference voltage regulator.
The AGC and CDS have a bandwidth circuit controlled by
on-chip DACs via a serial interface.
A 10-bit DAC controls the ADC input clamp level.
An additional 8-bit DAC is provided for additional system
controls; its output voltage range is 1.4 V (p-p) which is
available at pin OFDOUT.
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8783HL
LQFP48
plastic low profile quad flat package; 48 leads; body 7
7
1.4 mm
SOT313-2
1999 Jun 25
3
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
CCA
analog supply voltage
4.75
5
5.25
V
V
CCD
digital supply voltage
4.75
5
5.25
V
V
CCO
digital outputs supply voltage
2.5
3
5.25
V
I
CCA
analog supply current
-
78
85
mA
I
CCD
digital supply current
-
18
20
mA
I
CCO
digital outputs supply current
f
CLK
= 27 MHz;
C
L
= 20 pF; ramp input
-
1
-
mA
ADC
res
ADC resolution
-
10
-
bits
V
i(CDS)(p-p)
CDS input voltage (peak-to-peak value)
-
400
1200
mV
G
CDS
CDS output amplifier gain
-
6
-
dB
f
CLK(max)
maximum clock frequency
f
cut(CDS)
= 120 MHz;
f
cut(AGC)
= 54 MHz
40
-
-
MHz
AGC
dyn
AGC dynamic range
-
30
-
dB
N
tot(rms)
total noise from CDS input to ADC output
(RMS value)
gain = 4.5 dB;
f
cut(CDS)
= 120 MHz;
f
cut(AGC)
= 54 MHz
-
0.125
-
LSB
P
tot
total power consumption
-
483
550
mW
1999 Jun 25
4
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
BLOCK DIAGRAM
Fig.1 Block diagram.
handbook, full pagewidth
MGM491
TRACK-
AND-HOLD
TRACK-
AND-HOLD
TRACK-
AND-HOLD
CLAMP
ref1
CLAMP
8-BIT DAC
10-BIT DAC
9-BIT DAC
6 dB
AGC
CLOCK
GENERATOR
10-BIT ADC
REGULATOR
SERIAL
INTERFACE
4-BIT DAC
CUT-OFF
OUTPUTS
BUFFER
5
4
2
7
6
9
10
14
11
12
13
15
16
17
18
20
21
22
23
19
24
36
3
25
26
27
28
29
30
31
32
33
34
35
37
38
39
40
41
42
43
44
45
48
46
47
IND
INP
AGND3
SHD
SHP
CLPDM
CLK
DGND2
VCCO
VCCD2
VCCA3
OE
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
DGND1
OFDOUT
OGND
VCCD1
STDBY
SEN
AGND6
SCLK
SDATA
DEC1
VRT
VRB
VCCA2
DACOUT
Vref
CLPADC
AGND2
ADCIN
AGND5
VCCA1
AGCOUT
AGND4
AGND1
8
CPCDS
AMPOUT
TDA8783
4-BIT DAC
CUT-OFF
1
CLPOB
+
-
1
1
1999 Jun 25
5
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
PINNING
SYMBOL
PIN
DESCRIPTION
CLPOB
1
clamp pulse input at optical black
AGND4
2
analog ground 4
OFDOUT
3
analog output of the additional 8-bit control DAC (controlled via the serial interface)
AMPOUT
4
CDS amplifier output (fixed gain = 6 dB)
AGND1
5
analog ground 1
V
CCA1
6
analog supply voltage 1
AGCOUT
7
AGC amplifier signal output
CPCDS
8
clamp storage capacitor pin
AGND5
9
analog ground 5
ADCIN
10
ADC analog signal input from AGCOUT via a short circuit
CLPADC
11
clamp control input for ADC analog input signal clamp (used with a capacitor from V
ref
to ground)
V
ref
12
ADC input clamp reference voltage (normally connected to pin V
RB
or DACOUT, or shorted to
ground via a capacitor)
DACOUT
13
DAC output for ADC clamp level
AGND2
14
analog ground 2
V
CCA2
15
analog supply voltage 2
V
RB
16
ADC reference voltage (BOTTOM) code 0
V
RT
17
ADC reference voltage (TOP) code 1023
DEC1
18
decoupling 1 (decoupled to ground via a capacitor)
AGND6
19
analog ground 6
SDATA
20
serial data input for the 4 control DACs (9-bit DAC for AGC gain, 8-bit DAC for frequency cut-off,
additional 8-bit DAC for OFD output voltage and 10-bit DAC for ADC clamp level and standby
mode per block and edge pulse control; see Table 1
SCLK
21
serial clock input for the control DACs and their serial interface; see Table 1
SEN
22
enable input for the serial interface shift register (active when SEN = logic 0); see Table 1
STDBY
23
standby control (active HIGH); all the output bits are logic 0 when standby is enabled
V
CCD1
24
digital supply voltage 1
DGND1
25
digital ground 1
D0
26
ADC digital output 0 (LSB)
D1
27
ADC digital output 1
D2
28
ADC digital output 2
D3
29
ADC digital output 3
D4
30
ADC digital output 4
D5
31
ADC digital output 5
D6
32
ADC digital output 6
D7
33
ADC digital output 7
D8
34
ADC digital output 8
D9
35
ADC digital output 9 (MSB)
OGND
36
digital output ground
V
CCO
37
digital output supply voltage
1999 Jun 25
6
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
OE
38
output enable (active LOW: digital outputs active; active HIGH: digital outputs high impedance)
V
CCD2
39
digital supply voltage 2
DGND2
40
digital ground 2
CLK
41
ADC clock input
CLPDM
42
clamp pulse input at dummy pixel
SHP
43
pre-set sample-and-hold pulse input
SHD
44
data sample-and-hold pulse input
V
CCA3
45
analog supply voltage 3
INP
46
pre-set input signal from CCD
IND
47
data input signal from CCD
AGND3
48
analog ground 3
SYMBOL
PIN
DESCRIPTION
Fig.2 Pin configuration.
1
2
3
4
5
6
7
8
9
10
11
36
35
34
33
32
31
30
29
28
27
26
13
14
15
16
17
18
19
20
21
22
23
48
47
46
45
44
43
42
41
40
39
38
12
24
37
25
TDA8783H
MGM492
OGND
D9
D8
D7
D5
D4
D3
D2
D1
D0
DGND1
CLPOB
AGND4
OFDOUT
AMPOUT
AGND1
VCCA1
CPCDS
AGND5
CLPADC
Vref
D6
IND
INP
V
CCA3
SHD
SHP
CLPDM
DGND2
V
CCD2
OE
V
CCO
AGND3
CLK
AGCOUT
ADCIN
AGND2
V
CCA2
V
RB
V
RT
DEC1
AGND6
SDATA
SEN
STDBY
V
CCD1
DACOUT
SCLK
1999 Jun 25
7
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
Note
1. The supply voltages V
CCA
, V
CCD
and V
CCO
may have any value between
-
0.3 and +7.0 V provided that the supply
voltage difference
V
CC
remains as indicated.
HANDLING
Inputs and outputs are protected against electrostatic discharges in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling integrated circuits.
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
CCA
analog supply voltage
note 1
-
0.3
+7.0
V
V
CCD
digital supply voltage
note 1
-
0.3
+7.0
V
V
CCO
output stages supply voltage
note 1
-
0.3
+7.0
V
V
CC
supply voltage difference
between V
CCA
and V
CCD
-
1.0
+1.0
V
between V
CCA
and V
CCO
-
1.0
+4.0
V
between V
CCD
and V
CCO
-
1.0
+4.0
V
V
i
input voltage
referenced to AGND
-
0.3
+7.0
V
V
CLK(p-p)
AC input voltage for switching
(peak-to-peak value)
referenced to DGND
-
V
CCD
V
I
o
output current
-
10
mA
T
stg
storage temperature
-
55
+150
C
T
amb
operating ambient temperature
-
20
+75
C
T
j
junction temperature
-
150
C
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
R
th(j-a)
thermal resistance from junction to ambient in free air
76
K/W
1999 Jun 25
8
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
CHARACTERISTICS
V
CCA
= V
CCD
= 5 V; V
CCO
= 3 V; f
CLK
= 27 MHz; T
amb
= 25
C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
V
CCA
analog supply voltage
4.75
5
5.25
V
V
CCD
digital supply voltage
4.75
5
5.25
V
V
CCO
digital outputs supply voltage
2.5
3
3.6
V
I
CCA
analog supply current
-
78
85
mA
I
CCD
digital supply current
-
18
20
mA
I
CCO
digital outputs supply current
C
L
= 20 pF on all data
outputs; ramp input
-
1
-
mA
Digital inputs
C
LOCK INPUT
: CLK (
REFERENCED TO
DGND)
V
IL
LOW-level input voltage
0
-
0.8
V
V
IH
HIGH-level input voltage
2.0
-
V
CCD
V
I
IL
LOW-level input current
V
CLK
= 0.8 V
-
1
-
+1
A
I
IH
HIGH-level input current
V
CLK
= 2.0 V
-
-
20
A
Z
i
input impedance
f
CLK
= 27 MHz
-
46
-
k
C
i
input capacitance
f
CLK
= 27 MHz
-
1
-
pF
I
NPUTS
: SHP
AND
SHD
V
IL
LOW-level input voltage
0
-
0.8
V
V
IH
HIGH-level input voltage
2.0
-
V
CCD
V
I
IL
LOW-level input current
V
IL
= 0.6 V
-
-
6
-
A
I
IH
HIGH-level input current
V
IH
= 2.2 V
-
0
-
A
I
NPUTS
: SEN, SCLK, SDATA, OE, STDBY, CLPDM, CLPOB
AND
CLPADC
V
IL
LOW-level input voltage
0
-
0.8
V
V
IH
HIGH-level input voltage
2.0
-
V
CCD
V
I
i
input current
-
2
-
+2
A
Correlated Double Sampling; CDS
V
i(CDS)(p-p)
CDS input amplitude
(peak-to-peak value)
-
400
1200
mV
I
CPCDS,INP,IND
input current pins 8, 46 and 47
-
2
-
+2
A
t
CDS(min)
CDS control pulses minimum
active time
f
i(CDS1,2)
= f
CLK(pix)
;
V
i(CDS)(p-p)
= 600 mV
black-to-white transition in
1 pixel (
1 LSB typ.);
f
cut(CDS)
= 120 MHz;
f
cut(AGC)
= 54 MHz
8
-
-
ns
t
hd1
hold time INP compared to control
pulse SHP
see Fig.5
-
1
-
ns
t
hd2
hold time of IND compared to
control pulse SHD
see Fig.5
-
1
-
ns
1999 Jun 25
9
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
t
set(CDS)
CDS setting time
control DAC 4 bits input
code; AGC gain = 0 dB;
f
cut(AGC)
= 54 MHz;
V
i(CDS)
= 600 mV (p-p)
black-to-white transition in
1 pixel (
1 LSB typ.)
0000
-
8
-
ns
0001
-
21
-
ns
0010
-
42
-
ns
0011
-
52
-
ns
0100
-
82
-
ns
0111
-
94
-
ns
1000
-
195
-
ns
1011
-
219
-
ns
1111
-
280
-
ns
Amplifier outputs
G
AMPOUT
output amplifier gain
-
6
-
dB
Z
AMPOUT
output amplifier impedance
-
300
-
V
AMPOUT(p-p)
output amplifier dynamic voltage
(peak-to-peak value)
-
2.4
-
V
V
AMPOUT(bl)
output amplifier black level
voltage
-
1.5
-
V
V
AGCOUT(p-p)
AGC output amplifier dynamic
voltage level (peak-to-peak value)
-
2000
-
mV
V
AGCOUT(bl)
AGC output amplifier black level
voltage
V
ref
connected to DACOUT
-
V
ref
-
V
Z
AGCOUT(bl)
AGC output amplifier output
impedance
at 10 kHz
-
5
-
I
AGCOUT
AGC output static drive current
static
-
-
1
mA
G
AGC(min)
minimum gain of AGC circuit
AGC DAC input code = 00
(9-bit control)
-
4.5
-
dB
G
AGC(max)
maximum gain of AGC circuit
AGC DAC input code
319
(9-bit control)
-
34.5
-
dB
f
cut(AGC)
cut-off frequency AGC
4-bit control DAC
input code = 00
-
54
-
MHz
input code = 15
-
4
-
MHz
Clamps
g
m(ADC)
ADC clamp transconductance
at clamp level
-
7
-
mS
g
m(CDS)
CDS clamp transconductance
at clamp level
-
1.5
-
mS
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
1999 Jun 25
10
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Analog-to-Digital Converter; ADC
f
CLK(max)
maximum clock frequency
40
-
-
MHz
t
CPH
clock pulse width HIGH
12
-
-
ns
t
CPL
clock pulse width LOW
12
-
-
ns
SR
CLK
clock input slew rate (rising and
falling edge)
10% to 90%
0.5
-
-
V/ns
V
i(ADC)(p-p)
ADC input voltage level
(peak-to-peak value)
-
2
-
V
V
RB
ADC reference voltage output
code 0
-
1.5
-
V
V
RT
ADC reference voltage output
code 1023
-
3.5
-
V
I
ADCIN
ADC input current
-
2
-
+120
A
INL
integral non-linearity
ramp input
-
0.6
1.5
LSB
DNL
differential non-linearity
ramp input
-
0.2
0.75
LSB
t
d(s)
sampling delay time
-
-
5
ns
Total chain characteristics (CDS + AGC + ADC)
t
d
time delay between SHD and
CLK
50% at rising edges
CLK and SHD: transition full
scale code 0 to 1023;
f
cut(CDS)
= 120 MHz;
f
cut(AGC)
= 54 MHz;
V
i(CDS)
= 600 mV
-
30
-
ns
N
o(rms)
output noise (RMS value)
f
cut(CDS)
= 120 MHz;
f
cut(AGC)
= 40 MHz; note 1
G
AGC
= 4.5 dB
-
0.125
-
LSB
G
AGC
= 34.5 dB
-
1.6
-
LSB
V
offset(h-d)
maximum offset between CCD
heating level and CCD dark pixel
level
-
200
-
+200
mV
V
n(i)(eq)(rms)
equivalent input noise voltage
(RMS value)
AGC gain = 34.5 dB
-
125
-
V
AGC gain = 4.5 dB
-
150
-
V
Digital-to-Analog Converters (OFDOUT DAC)
V
OFDOUT(p-p)
additional 8-bit control DAC
(OFD) output voltage
(peak-to-peak value)
-
1.4
-
V
V
OFDOUT(0)
DC output voltage for code 0
-
2.3
-
V
V
OFDOUT(255)
DC output voltage for code 255
-
3.7
-
V
Z
OFDOUT
additional 8-bit control DAC
(OFD) output impedance
-
2000
-
I
OFDOUT
OFD output current drive
static
-
-
50
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
1999 Jun 25
11
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Notes
1. Noise measurement at ADC outputs: the coupling capacitor at the input is connected to ground, so that only the noise
contribution of the front-end is evaluated. The front-end operates at 18 Mpix with a line of 1024 pixels. The first 40 are
used to run CLPOB and the last 40 to run CLPDM. Data at the ADC outputs is measured during the other pixels.
The differences between the types of codes statistic is then computed; the result is the noise. No quantization noise
is taken into account as no signal is input.
2. Depending on operating pixel frequency, the output voltage and capacitance must be determined according to the
output delay timings (t
o(d)
).
ADC clamp control DAC (see Fig.8)
V
DACOUT(p-p)
ADC clamp 10-bit control DAC
output voltage (peak-to-peak
value)
-
1
-
V
V
DACOUT
DC output voltage
code 0
-
1.5
-
V
code 1023
-
2.5
-
V
Z
DACOUT
ADC clamp control DAC output
impedance
-
-
250
I
DACOUT
DAC output current drive
static
-
-
50
A
OFE
LOOP
maximum offset error of
DAC + ADC clamp loop
code 0
-
5
-
LSB
code 1023
-
5
-
LSB
Digital outputs (f
CLK
= 40 MHz; C
L
= 20 pF); note 2
V
OH
HIGH-level output voltage
I
OH
=
-
1 mA
V
CCO
-
0.5
-
V
CCO
V
V
OL
LOW-level output voltage
I
OL
= 1 mA
0
-
0.5
V
I
OZ
output current in 3-state mode
0 V < V
o
< V
CCO
-
20
-
+20
A
t
o(h)
output hold time
8
-
-
ns
t
o(d)
output delay time
C
i
= 20 pF; V
CCO
= 5 V
-
17
23
ns
C
i
= 10 pF
-
15
21
ns
C
i
= 20 pF; V
CCO
= 3 V
-
20
29
ns
C
i
= 10 pF
-
17
25
ns
C
i
= 20 pF; V
CCO
= 2.5 V
-
22
33
ns
C
i
= 10 pF
-
18
28
ns
Serial interface
f
SCLK(max)
maximum frequency of serial
interface
5
-
-
MHz
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
1999 Jun 25
12
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Fig.3 Serial interface block diagram.
handbook, full pagewidth
OFD
LATCHES
AGC GAIN
LATCHES
FREQUENCY
LATCHES
PARTIAL
STANDBY
AND EDGE
CLAMP
REFERENCE
LATCHES
LATCH
SELECTION
D0
LSB
MSB
SDATA
SCLK
SEN
8-bit DAC
10-bit DAC
MGM515
AGC control
frequency
control
CDS and AGC
standby
control
or edge clocks
D1
D2
D3
D4
D5
10
D6
SHIFT REGISTER
D7
D8
D9
A0
A1
A2
8
(D7 to D0)
8
(D7 to D0)
8
(D7 to D0)
7
(D6 to D0)
10
(D9 to D0)
Fig.4 Loading sequence of control DACs input data via the serial interface.
handbook, full pagewidth
MGE373
A2
SDATA
SCLK
SEN
A1
A0
D9
D7
D6
D5
D4
D3
MSB
LSB
D2
D1
D0
thd3
tsu3
tsu1
thd4
tsu2
D8
t
su1
= t
su2
= 4 ns (min.); t
hd3
= t
hd4
= 4 ns (min.).
1999 Jun 25
13
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Table 1
Serial interface programming
Note
1. When CLPADC is HIGH (D4 = 1: serial interface), the ADC input is clamped to voltage level V
ref
.
V
ref
is connected to ground via a capacitor.
ADDRESS BITS
DATA BITS D9 to D0
A2
A1
A0
0
0
0
OFD output control (D7 to D0).
0
0
1
Cut-off frequency of CDS and AGC. Only the 4 LSBs (D3 to D0) are used for
CDS. D4 to D7 are used for AGC. D8 and D9 should be set to logic 0.
0
1
0
AGC gain control (D8 to D0).
0
1
1
Partial standby controls for power consumption optimization. Only the 4 LSBs
(D3 to D0) are used. Edge control for pulses SHP, SHD, CLAMP and
clock ADC:
D0 = 1: CDS + AGC in standby; I
CCA
+ I
CCD
= 48 mA
D1 = 1: OFD DAC in standby; I
CCA
+ I
CCD
= 98 mA
D2 = 1: 6 dB amplifier (output on AMPOUT pin) in standby;
I
CCA
+ I
CCD
= 98.5 mA
D3 = 1: SHP and SHD activated with falling edge (for positive pulse)
D4 = 1: CLPDM, CLPOB and CLPADC activated on high level; note 1
D5 = 0: CLKADC activated with falling edge
D6 must be set to logic 0.
1
0
0
Clamp reference DAC (D9 to D0).
Table 2
Standby selection
STDBY
DATA BITS D9 to D0
I
CCA
+ I
CCD
(TYP.)
1
LOW
4 mA
0
active
99 mA
1999 Jun 25
14
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Fig.5 Pixel frequency timing diagram.
handbook, full pagewidth
MGR395
N
INP
and
IND
SHP
1.4 V
SHD
CLK
ADC
DATA
N
+
3
N
+
2
N
+
1
N
-
1
N
N
tCDS
tCPH
td(s)
td
to(d)
to(h)
thd1
thd2
90%
10%
1.4 V
1.4 V
1999 Jun 25
15
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Fig.6 Line frequency timing diagram.
(1) When dummy pixels are not available.
handbook, full pagewidth
MGR396
CLPADC
(active HIGH)
CLPDM
(active HIGH)
CLPOB
(active HIGH)
OPTICAL BLACK
HORIZONTAL FLYBLACK
DUMMY
VIDEO
VIDEO
AGCOUT
CLPDM2
CLPADC
WINDOW
CLPDB
WINDOW
(1)
(1)
1 pixel
CLPDMR
CLPADC
WINDOW
1 pixel
1999 Jun 25
16
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Fig.7 AGC gain as a function of DAC input code.
handbook, halfpage
MGM507
GAGC
(dB)
34.5
4.5
0
319
511
AGC control DAC input code
Fig.8 DAC voltage output as a function of DAC input code.
handbook, full pagewidth
0
ADC CLAMP DAC
voltage
output
(V)
2.5
1.5
1023
ADC CLAMP control DAC input code
MGM508
0
OFD DAC
voltage
output
(V)
3.4
2.0
255
OFD control DAC input code
1999 Jun 25
17
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Fig.9 Typical clamp current for pin CPCDS.
handbook, halfpage
MGR397
+
100
0
-
100
I
(
A)
V (V)
200 mV
2.85
Fig.10 Typical clamp current for pins IND and INP.
handbook, halfpage
MGR398
+
300
0
-
300
I
(
A)
V (V)
400 mV
2.85
Fig.11 Typical clamp current for pin V
ref
.
handbook, halfpage
MGR399
+
200
0
-
200
I
(
A)
V (V)
400 mV
Vref
1999 Jun 25
18
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Fig.12 CDS setting time and bandwidth.
(1) f
cut
.
(2) t
set
(10 bits accuracy).
(3) t
set
(9 bits accuracy).
(4) t
set
(8 bits accuracy).
handbook, full pagewidth
160
120
40
0
80
MGR441
F
0
5
A
1
6
B
2
7
C
3
8
D
4
9
E
4-bit control DAC input code
fcut
(MHz)
300
250
50
0
150
100
200
tset
(ns)
(2)
(4)
(1)
(3)
1999 Jun 25
19
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Fig.13 AGC bandwidth.
handbook, full pagewidth
F
60
40
20
0
0
5
A
1
6
B
2
7
C
3
8
D
4
9
E
MGR401
4-bit control DAC input code
fcut
(MHz)
Fig.14 CDS output.
handbook, full pagewidth
1.6
1.6
1.2
0.4
0
0
0.4
1.2
0.8
0.8
0.2
0.6
1.4
1.0
MGR442
Vi(CDS)(p-p) (V)
Vo(CDS)(p-p)
(V)
(2)
(3)
(4)
(6)
(5)
(1)
(1) t
set(CDS)
= 12 ns
(2) t
set(CDS)
= 10 ns
(3) t
set(CDS)
= 8 ns
(4) t
set(CDS)
= 7 ns
(5) t
set(CDS)
= 6 ns
(6) t
set(CDS)
= 5 ns
1999 Jun 25
20
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Fig.15 Output noise (RMS value).
(1) f
pix
= 27 MHz; control DAC = 00H; f
cut(CDS)
= 120 MHz; f
cut(AGC)
= 54 MHz.
(2) f
pix
= 18 MHz; control DAC = 10H; f
cut(CDS)
= 120 MHz; f
cut(AGC)
= 40 MHz.
(3) f
pix
= 10 MHz; control DAC = 31H; f
cut(CDS)
= 80 MHz; f
cut(AGC)
= 30 MHz.
(4) f
pix
= 5 MHz; control DAC = 43H; f
cut(CDS)
= 35 MHz; f
cut(AGC)
= 12 MHz.
(5) f
pix
= 1 MHz; control DAC = F8H; f
cut(CDS)
= 6 MHz; f
cut(AGC)
= 4 MHz.
(6) f
pix
= 375 kHz; control DAC = FFH; f
cut(CDS)
= 4 MHz; f
cut(AGC)
= 4 MHz.
handbook, full pagewidth
13F
code
3
2
1
0
00
40
80
C0
100
(34.5)
(4.5)
(10.5)
(16.5)
(22.5)
(28.5)
MGR443
GAGC (dB)
Ntot(rms)
(LSB)
(3)
(2)
(5)
(4)
(6)
(1)
1999 Jun 25
21
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
APPLICATION INFORMATION
Fig.16 Application diagram.
Depending on the application, the following connections must be made:
(1) The clamp level of the signal input at ADCIN can be tuned from code 00 to code 511 in 0.5 LSB steps of ADC via the serial interface
(clamp ADC activated).
(2) Clamp ADC not activated, direct connection from DACOUT to V
ref
.
(3) All supply pins must be decoupled with 100 nF capacitors as close as possible to the device.
handbook, full pagewidth
MGM504
1
2
3
4
5
6
7
8
9
10
11
36
48
47
46
45
44
43
42
41
40
39
38
37
13
14
15
16
17
18
19
20
21
22
23
24
35
34
33
32
31
30
29
28
27
26
12
25
TDA8783
OGND
D9
D8
D7
D5
D4
D3
D2
D1
D0
DGND1
CLPOB
AGND4
OFDOUT
AMPOUT
AGND1
VCCA1
CPSDS
AGND5
CLPADC
Vref
D6
IND
INP
V
CCA3
SHD
SHP
CLPDM
DGND2
V
CCD2
OE
V
CCO
AGND3
CLK
AGCOUT
ADCIN
AGND2
V
CCA2
V
RB
V
RT
DEC1
AGND6
SDATA
SEN
STDBY
V
CCD1
DACOUT
SCLK
from timing
generator
serial
interface
5.0 V
5.0 V
5.0 V
5.0 V
CCD
2.5 to 5.25 V
(3)
1
F
1
F
(3)
(3)
(2)
(1)
(3)
5.0 V
(3)
100
nF
1
nF
2.2
nF
1
nF
(3)
220
nF
1999 Jun 25
22
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Power and grounding recommendations
When designing a printed-circuit board for applications
such as PC cameras, surveillance cameras, camcorders
and digital still cameras, care should be taken to minimize
the noise.
For the front-end integrated circuit, the basic rules of
printed-circuit board design and implementation of
analogue components (such as classical operational
amplifiers) must be respected, particularly with respect to
power and ground connections.
The following additional recommendation is given for the
CDS input pin(s) which is/are internally connected to the
programmable gain amplifier:
The connections between CCD interface and CDS input
should be as short as possible and a ground ring
protection around these connections can be beneficial.
Separate analogue and digital supplies provide the best
solution. If it is not possible to do this on the board then
the analogue supply pins must be decoupled effectively
from the digital supply pins. If the same power supply
and ground are used for all the pins then the decoupling
capacitors must be placed as close as possible to the IC
package.
In a two-ground system, in order to minimize the noise
though package and die parasitics, the following
recommendations must be implemented:
All the analogue and digital supply pins must be
decoupled to the analogue ground plane. Only the
ground pin associated with the digital outputs must be
connected to the digital ground plane. All the other
ground pins should be connected to the analogue
ground plane. The analogue and digital ground
planes must be connected together at one point as
close as possible to the ground pin associated with
the digital outputs.
The digital output pins and their associated lines
should be shielded by the digital ground plane which
can be used then as return path for digital signals.
1999 Jun 25
23
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
PACKAGE OUTLINE
UNIT
A
max.
A
1
A
2
A
3
b
p
c
E
(1)
e
H
E
L
L
p
Z
y
w
v
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
EIAJ
mm
1.60
0.20
0.05
1.45
1.35
0.25
0.27
0.17
0.18
0.12
7.1
6.9
0.5
9.15
8.85
0.95
0.55
7
0
o
o
0.12
0.1
0.2
1.0
DIMENSIONS (mm are the original dimensions)
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
0.75
0.45
SOT313-2
94-12-19
97-08-01
D
(1)
(1)
(1)
7.1
6.9
H
D
9.15
8.85
E
Z
0.95
0.55
D
b
p
e
E
B
12
D
H
b
p
E
H
v
M
B
D
ZD
A
Z E
e
v
M
A
1
48
37
36
25
24
13
A
1
A
L
p
detail X
L
(A )
3
A
2
X
y
c
w
M
w
M
0
2.5
5 mm
scale
pin 1 index
LQFP48: plastic low profile quad flat package; 48 leads; body 7 x 7 x 1.4 mm
SOT313-2
1999 Jun 25
24
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
SOLDERING
Introduction to soldering surface mount packages
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our
"Data Handbook IC26; Integrated Circuit Packages"
(document order number 9398 652 90011).
There is no soldering method that is ideal for all surface
mount IC packages. Wave soldering is not always suitable
for surface mount ICs, or for printed-circuit boards with
high population densities. In these situations reflow
soldering is often used.
Reflow soldering
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
Several methods exist for reflowing; for example,
infrared/convection heating in a conveyor type oven.
Throughput times (preheating, soldering and cooling) vary
between 100 and 200 seconds depending on heating
method.
Typical reflow peak temperatures range from
215 to 250
C. The top-surface temperature of the
packages should preferable be kept below 230
C.
Wave soldering
Conventional single wave soldering is not recommended
for surface mount devices (SMDs) or printed-circuit boards
with a high component density, as solder bridging and
non-wetting can present major problems.
To overcome these problems the double-wave soldering
method was specifically developed.
If wave soldering is used the following conditions must be
observed for optimal results:
Use a double-wave soldering method comprising a
turbulent wave with high upward pressure followed by a
smooth laminar wave.
For packages with leads on two sides and a pitch (e):
larger than or equal to 1.27 mm, the footprint
longitudinal axis is preferred to be parallel to the
transport direction of the printed-circuit board;
smaller than 1.27 mm, the footprint longitudinal axis
must be parallel to the transport direction of the
printed-circuit board.
The footprint must incorporate solder thieves at the
downstream end.
For packages with leads on four sides, the footprint must
be placed at a 45
angle to the transport direction of the
printed-circuit board. The footprint must incorporate
solder thieves downstream and at the side corners.
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Typical dwell time is 4 seconds at 250
C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Manual soldering
Fix the component by first soldering two
diagonally-opposite end leads. Use a low voltage (24 V or
less) soldering iron applied to the flat part of the lead.
Contact time must be limited to 10 seconds at up to
300
C.
When using a dedicated tool, all other leads can be
soldered in one operation within 2 to 5 seconds between
270 and 320
C.
1999 Jun 25
25
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
Suitability of surface mount IC packages for wave and reflow soldering methods
Notes
1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum
temperature (with respect to time) and body size of the package, there is a risk that internal or external package
cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the
Drypack information in the
"Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods".
2. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink
(at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version).
3. If wave soldering is considered, then the package must be placed at a 45
angle to the solder wave direction.
The package footprint must incorporate solder thieves downstream and at the side corners.
4. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm;
it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.
5. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is
definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
DEFINITIONS
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
PACKAGE
SOLDERING METHOD
WAVE
REFLOW
(1)
BGA, SQFP
not suitable
suitable
HLQFP, HSQFP, HSOP, HTQFP, HTSSOP, SMS
not suitable
(2)
suitable
PLCC
(3)
, SO, SOJ
suitable
suitable
LQFP, QFP, TQFP
not recommended
(3)(4)
suitable
SSOP, TSSOP, VSO
not recommended
(5)
suitable
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
1999 Jun 25
26
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
NOTES
1999 Jun 25
27
Philips Semiconductors
Product specification
40 Msps, 10-bit analog-to-digital interface
for CCD cameras
TDA8783
NOTES
Philips Electronics N.V.
SCA
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Internet: http://www.semiconductors.philips.com
1999
66
Philips Semiconductors a worldwide company
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Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,
Tel. +82 2 709 1412, Fax. +82 2 709 1415
Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,
Tel. +60 3 750 5214, Fax. +60 3 757 4880
Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,
Tel. +9-5 800 234 7381, Fax +9-5 800 943 0087
Middle East: see Italy
Printed in The Netherlands
545004/25/02/pp28
Date of release: 1999 Jun 25
Document order number:
9397 750 06031