LA71521M
No. 5842-1/25
Parameter
Recommended supply voltage
Recommended operating supply
voltage range
Unit
V
V
Unit
V
mW
C
C
Symbol
V
CC
V
CC
opg
Symbol
V
CC
max
Pd max
Topr
Tstg
LA71521M
Video/audio signal processor for VHS VCRs
(single chip for Y/C/A)
Monolithic Linear IC
The LA71521M is a video/audio signal processor IC
for VHS VCRs. It handles recording and playback of
PAL/GBI, MESECAM, and 4.43 NTSC signals.
NTSC software tapes can be converted to PAL for
monitoring. The IC requires no adjustments and
minimizes the peripheral component count, making it
possible to implement efficient signal handling at low
cost.
Package Dimensions
unit: mm
3174-QFP80E
[LA71521M]
Overview
SANYO : QFP80E (QIP80E)
Ordering number : EN5842
Maximum Ratings
at Ta = 25
C
Specifications
Operating Conditions
at Ta = 25
C
12999RM(KI)
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
0.15
1.6
14.0
17.2
0.8
1
24
25
40
41
64
65
80
21.6
0.8
3.0max
1.0
2.70
15.6
0.8
1.6
0.35
23.2
20.0
0.8
0.8
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Conditions
Ta
65C
Conditions
114.3 x 76.1 mm
2
x 1.6 mm
3
with paper
phenol substrate
Ratings
5
4.8 to 5.2
Ratings
7
1400
10 to +65
40 to +150
LA71521M
No. 5842-2/25
min
t y p
max
[REC mode Y]
Current drain
20
22
24
mA
(POWER SAVE MODE)
Current drain
130
145
160
mA
(REC)
EE output level 1
T28A
T38
2.0
2.1
2.2
Vp-p
EE output level 2
T28A
T38
2.0
2.1
2.2
Vp-p
AGC characteristics 1
T28A
T38
0
0.6
1.2
dB
AGC characteristics 2
T28A
T38
1.2
0.2
0
dB
AGC characteristics 3
T28A
T38
550
650
750 mVp-p
AGC characteristics 4
T28A
T38
370
420
470 mVp-p
Sync separation output level
T28A
T37
4.0
4.2
4.4
Vp-p
Sync separation output pulse
T28A
T37
4.2
4.5
4.8
s
width
Sync separation output
T28A
T37
0.6
0.8
1.0
s
Pre-delay time
Sync separation
T28A
T37
20
15
dB
Threshold level
Sync tip level
T28A
T38
700
800
900
mV
Pedestal level
White level measurement
Simulated H insertion level
T28A
T38
150
0
mV
White insertion level
T28A
T38
150
0
mV
REC YNR operation
T28A
T25
0
0
0
1.7
2.7
3.7
4.2
5.7
7.2
/
/
/
T28A
T25
0.3
dB
T28A
T25
1.4
0.4
dB
T28A
T25
4
2
0
dB
T28A
T25
25
dB
REC-FM output level
T18
304
320
336 mVp-p
Carrier frequency 1 (PAL)
T18
3.725
3.8
3.875
MHz
Carrier frequency 2 (NTSC)
3.325
3.4
3.475
MHz
+0.6
dB
+0.7
+0.2
+150
+150
Parameter
Symbol
Input
Output
Conditions
Unit
Ratings
Operating Characteristics
at Ta = 25
C, V
CC
= 5V
Continued on next page
Influx current measured at pin 41 in power save mode
Sum of influx current at pins 36, 41, 47, 76 measured;
5V: pins 36, 41, 47; 7V: pin 76
T38 output level measured with
V
IN
= 1.0 Vp-p video signal (PAL)
T38 output level measured with
V
IN
= 1.0 Vp-p video signal (NTSC)
Ratio of V
EE
and T38 output level with
V
IN
= 2.0 Vp-p video signal
Ratio of V
EE
and T38 output level with
V
IN
= 0.5 Vp-p video signal
T38 SYNC level measured with
V
IN
= 700 mVp-pLUMI, 600 mVp-p SYNC
T38 SYNC level measured with
V
IN
= 700 mVp-pLUMI, 150 mVp-p SYNC
T37 output pulse crest value measured with
V
IN
= 1.0 Vp-p video signal
T37 output pulse width measured with
V
IN
= 1.0 Vp-p video signal
Delay of output SYNC vs. input SYNC measured with
V
IN
= 1.0 Vp-p video signal
Input level gradually attenuated and measured when
output pulse width becomes larger than PW
SYR
by 1
s
Potential measured with V
IN
= 1.0 Vp-p video signal,
under following conditions.
T38 sync tip level: L
SYN
Pedestal level: L
PED
White peak level: L
WHT
T38 DC level measured with 2.7V DC applied to T33.
Using this as L
HDR
,
differential to L
PED
(see above) is
calculated.
T38 DC level measured with 1.3V DC applied to T33.
Using this as L
WHR
, differential to L
WHT
(see above) is
calculated.
T25 YNR characteristics measured with
V
IP
= 1 Vp-p standard color bar signal
input
1 MHz response of T25 vs. 500 kHz with V
IN
= 1 Vp-p
standard multiburst signal
2 MHz response of T25 vs. 500 kHz with V
IN
= 1 Vp-p
standard multiburst signal
3 MHz response of T25 vs. 500 kHz with V
IN
= 1 Vp-p
standard multiburst signal
4.43 MHz response of T25 vs. 500 kHz with
V
IN
= 1 Vp-p standard multiburst signal
T18 output level measured in no-signal input condition
T18 output frequency measured in no-signal input
condition
Y
LPF
frequency response
characteristics 2
Y
LPF
frequency response
characteristics 3
Y
LPF
frequency response
characteristics 4
I
CCS
I
CCR
V
EE
1
V
EE
2
AGC1
AGC2
AGC3
AGC4
V
SYR
PW
SYR
T
SYR
L
VOR
HDR
R
YNR
WHR
Y
LPF
1
Y
LPF
2
Y
LPF
3
Y
LPF
4
V
FM
F
FM
1
F
FM
2
Serial
00 OFF
10 (weak)
01 (medium)
11 (strong)
TH
SYR
Y
LPF
frequency response
characteristics 1
LA71521M
No. 5842-3/25
min
t y p
max
REC-FM output level
T18
Secondary distortion measured in no-signal input condition
40
35
dB
Secondary distortion
Deviation 1 (PAL)
T28A
T18
0.95
1.00
1.05
MHz
Deviation 2 (NTSC)
T28A
T18
0.95
1.00
1.05
MHz
FM modulator linearity
T26
T18
Output frequency set to f2.85 with 2.85V DC applied to
2
0
%
T26
T18
Output frequency shift
6.5
7.8
9.1
kHz
Emphasis gain
T26A
T24
0.75
0.25
dB
T37
Detail
T26A
T24
0.1
0.6
1.1
dB
enhancer characteristics 1
Detail
T26A
T24
1.3
2.3
3.3
dB
enhancer characteristics 2
Detail
T26A
T24
1.8
3.3
4.8
dB
enhancer characteristics 3
Nonlinear
T26A
T24
0.3
1.2
2.1
dB
emphasis characteristics 1
Nonlinear
T26A
T24
2.5
3.8
5.0
dB
emphasis characteristics 2
Nonlinear
T26A
T24
6.5
8.0
9.5
emphasis characteristics 3
4.5
6.0
7.5
2.5
4.0
5.5
0 0 0
Main linear
T26A
T37
10.5
11.0
11.5
dB
emphasis characteristics 1
Main linear
T26A
T37
12.5
13.0
13.5
dB
emphasis characteristics 2
White clip level
T28A
T37
185
195
205
176
185
194
Dark clip level
T28A
T37
57.5
52.5
47.5
52.0
47.0
42.0
Video output linearity
T28A
T38
T38 stair levels measured with video signal 1.0Vp-p
0.5
0
dB
(linearity unit, 5 stairs) input. Stair linearity determined by
arithmetic processing.
[PB mode Y]
Current drain PB
5V: pins 36, 41, 47; 7V: pin 76
153
170
187
mA
Sum of influx current at pins 36, 41, 47, 76 measured
Dropout compensation time
T15
T38
T20: 4 MHz, 300 mVp-p sine wave
10.5
12.5
14.5
H
T26A
T26A: revert time for T38 output from when 0.5 Vp-p video
signal T15 input is set to 0
DOC characteristics
T15
T38
T15: 4 MHz, 300 mVp-p sine wave
1.5
0
dB
T26A
T26A: 0.5Vp-p video signal
Input/output response 5H after setting T15 input to 0
PB Y level
T15
T38
Playback Y level with DEV = 1.0 MHz FM signal input
2.00
2.10
2.20
Vp-p
Self-recording/playback Y level
T38
Playback Y level for self-recording/playback
1.93
2.10
2.27
Vp-p
+2
+0.5
+1.5
+0.25
dB
%
%
Parameter
Symbol
Input
Output
Conditions
Ratings
Unit
Continued from preceding page
1/2f
H
carrier shift
Continued on next page
H
MOD
DEV1
L
MOD
DEV2
G
EMP
24
G
EMP
37
CS
G
ENH
2
G
ENH
1
G
ENH
3
G
NLEMP
1
G
NLEMP
2
G
NLEMP
3
G
ME
1
G
ME
2
L
WC
L
DC
LINY
I
CCP
T
DOC
G
DOC
V-Y
OUT
R/P-
OUT
T18 deviation measured with V
IN
= white 100% 1 Vp-p
T18 deviation measured with V
IN
= white 100% 1 Vp-p
Level difference of T26A and T37 measured with
V
IN
= 500 mVp-p, 10 kHz sine wave input
Level difference of T26A and T37 measured with
V
IN
= 158 mVp-p, 2 MHz sine wave input
Differential with G
EMP
24
Level difference of T26A and T24 measured with
V
IN
= 50 mVp-p, 2 MHz sine wave input
Differential with G
EMP
24
Level difference of T26A and T24 measured with
V
IN
= 15.8 mVp-p, 2 MHz sine wave input
Differential with G
EMP
24
Level difference of T26A and T24 measured with
V
IN
= 500 mVp-p, 2 MHz sine wave input
Differential with G
EMP
24
Level difference of T26A and T24 measured with
V
IN
= 158 mVp-p, 2 MHz sine wave input
Differential with G
EMP
24
Level difference of T26A and T24 measured Serial 1
with V
IN
= 50 mVp-p, 2 MHz sine wave input 2
Differential with G
EMP
24 3
4
Level difference of T26A and T37 measured with
V
IN
= 50 mVp-p, 500 kHz sine wave input
Differential with G
EMP
37
Level difference of T26A and T37 measured with
V
IN
= 50 mVp-p, 2 MHz sine wave input
Differential with G
EMP
37
White clip level at T37 measured with CTL 1
V
IN
= white 100% 1.0 Vp-p 2
Dark clip level at T37 measured with CTL 1
V
IN
= white 100% 1.0 Vp-p 2
LA71521M
No. 5842-4/25
Continued on next page
Continued from preceding page
V
IN
= 300 mVp-p f = 4 MHz
Ratio of T25 4 MHz component and SDEM
Ratio of 3 fH component and
32.5 fH component with
V
IN
= white 50% + CW
(15.8 mVp-p)
Input/output response measured with
V
IN
= white 50% video + sine wave f = 2 MHz 158 mVp-p
00 OFF
10 (weak)
01 (medium)
11 (strong)
T38 video output sync tip (L
SYN
), pedestal (L
PED
), white
level (L
WHT
) potential measured with V
IN
= white 100%
0.5 Vp-p
DC voltage at T38 is measured when 5V is applied to
T33. Taking this as L
VDP
, differential with L
SYN
above
is calculated.
DC voltage at T38 is measured when 2.7V is applied to
T33. Taking this as L
HDP
, differential with L
PED
above is
calculated.
DC voltage at T38 is measured when 1.3V is applied to
T33. Taking this as L
WHP
, differential with L
WHT
above is
calculated.
Pin 37 output pulse crest value measured with
V
IN
= 0.5 Vp-p video signal
Pin 37 output pulse width measured with
V
IN
= 0.5 Vp-p video signal
Delay of output SYNC vs. input SYNC measured with
V
IN
= 0.5 Vp-p video signal
Pin 17 signal amplitude measured with
V
IN
= 150, 300, 600 mVp-p 4 MHz CW
L
DEM
CL
G
NLDE
1
P
YNR
G
WNC
1
G
WNC
4
G
WNC
3
G
WNC
2
G
WNC
5
G
PH
1
G
PH
2
G
PH
3
L
VOR
VDP
HDP
WHP
P
WSYP
T
SYP
G
PH
4
VF
AGC
V
SYP
G
NLDE
2
Serial
V
REG
L
DEM
=
V
DEM
4
(V
DEM
2
+V
DEM
6
) /2
V
DEM
6
V
DEM
2
x 100
min
t y p
max
FM demodulator linearity
T15
T25
3.5
0
%
Carrier leak
T15
T25
35
dB
Playback YNR characteristics
T26A
T38
0
0
0
3.7
3.2
2.7
9.2
8.2
7.2
13.3
11.8
10.3
Nonlinear
T26A
T38
3.5
2.5
1.5
dB
deemphasis characteristics 1
Nonlinear
T26A
T38
f = 2 MHz, 50 mVp-p
4.5
6.0
7.5
deemphasis characteristics 2
2
2.5
4.0
5.5
3
0.5
2.0
3.5
4
0 0 0
Double noise
T26A
T38
f = 1.2 MHz, 158 mVp-p, pin 69 open
3
2
1
dB
canceler characteristics 1
Gr2 bit 8/7 = "10", Gr5 bit 1 = "0"
Double noise
T26A
T38
f = 1.2 MHz, 50 mVp-p, pin 69 open
7.5
6.0
4.5
dB
canceler characteristics 2
Gr2 bit 8/7 = "10", Gr5 bit 1 = "0"
Double noise
T26A
T38
f = 1.2 MHz, 15.8 mVp-p, pin 69 open
14
12
10
dB
canceler characteristics 3
Gr2 bit 8/7 = "10", Gr5 bit 1 = "0"
Double noise
T26A
T38
f = 2.5 MHz, 15.8 mVp-p, pin 69 open
6
5
4
dB
canceler characteristics 4
Gr2 bit 8/7 = "10", Gr5 bit 1 = "0"
Double noise
T26A
T38
f = 2.5 MHz, 15.8 mVp-p, pin 69 open
9.5
8.0
6.5
dB
canceler characteristics 5
Gr2 bit 8/7 = "10", Gr5 bit 1 = "0"
PIC-CTL hard response
T26A
T38
f = 1 MHz, 158 mVp-p, Gr5 bit 6/5/4 = "1/0/0"
2.5
3.5
4.5
dB
characteristics 1
PIC-CTL hard response
T26A
T38
f = 2 MHz, 158 mVp-p, Gr5 bit 6/5/4 = "1/0/0"
6
7
8
dB
characteristics 2
PIC-CTL soft response
T26A
T38
f = 1 MHz, 158 mVp-p, Gr5 bit 6/5/4 = "0/0/0"
4.5
3.5
2.5
dB
characteristics 1
PIC-CTL soft response
T26A
T38
f = 2 MHz, 158 mVp-p, Gr5 bit 6/5/4 = "0/0/0"
8
7
6
dB
characteristics 2
Sync tip level
T26A
T38
700
800 900
mV
Pedestal level
White level measurement
Simulated V insertion level
T26A
T38
50
0 mV
Simulated H insertion level
T26A
T38
100
0
mV
White insertion level
T26A
T38
100
0
mV
Sync separation output level
T26A
T37
4.0
4.2
4.4
Vp-p
Sync separation output pulse
T26A
T37
4.35
4.65
4.95
s
width
Sync separation output
T26A
T37
0.7
0.9
1.10
s
Pre-delay time
4V regulator
T31
T31 DC level measured
3.8
4.0
4.2
V
FMAGC output level
T15
T17
325
350
375 mVp-p
dB
dB
+50
dB
dB
+3.5
+100
+100
CTL 1
Parameter
Symbol
Input
Output
Conditions
Ratings
Unit
LA71521M
No. 5842-5/25
min
t y p
max
[REC mode chroma]
REC chroma
T28A
T14A
215
225
235 mVp-p
low-range converter output level
180
190
200
REC chroma/FM ratio
T28A
T14A
3.7
3.0
2.3
dB
T18
Burst emphasis amount
T28A
T14A
5.5
6.0
6.5
dB
(NTSC mode)
VXO oscillation level
T28A
T56
300
500 700
mVp-p
(PAL mode)
VXO oscillation level
T28A
T56
300 500 700
mVp-p
(NTSC mode)
REC ACC characteristics 1
T28A
T14A
dB
REC ACC characteristics 2
T28A
T14A
0.5
0.1
dB
REC ACC
T28A
T14A
26
dB
Killer input level
REC ACC
T28A
T14A
T14A output level measured with spectrum analyzer and
60
50
dB
Killer output level
compared to VOR-14, in killer condition as described
above.
REC ACC
T28A
T14A
20
dB
Demodulator input level
REC APC
T28A
T14A
Input signal: 50% white signal superimposed with
350
Hz
Pull-in range 1
4.4336 MHz 300 mVp-p CW. After checking that T14A
output is on, CW frequency is raised until T14A output
goes off. Frequency then is gradually reduced.
CW frequency when T14A output goes on: f1
REC APC
T28A
T14A
Same as above, CW frequency is lowered until T14A
350
Hz
Pull-in range 2
output goes off. Then frequency is gradually raised.
CW frequency when T14A output goes on: f2
REC AFC
T28A
T51
300 mVp-p, 15.6 kHz pulse train with 5
s pulse width
kHz
Pull-in range 1
is input. Pulse train frequency is raised until T51 output
waveform is impaired. Then frequency is lowered.
Pulse train frequency when T51 waveform becomes
normal: f1
REC AFC
T28A
T51
Same as above, pulse train frequency is lowered until T51
1
kHz
Pull-in range 2
output waveform is impaired. Then frequency is raised.
Pulse train frequency when T51 waveform becomes
normal: f2
BGP delay time
T28
T37
T37 and T60 waveforms are observed with standard color
3.1
3.4
3.7
s
T60
bar input to T28A
BGP width
4.7
4.9
5.1
s
+0.5
Symbol
Parameter
Output
+0.2
+0.5
+0.2
+1
Input
Conditions
Unit
Ratings
Continued on next page
V
OR
-14
C/FM
G
BE
V
VXO-RP
V
VXO-RN
ACC
R
1
ACC
R
2
V
ACCK-ON
V
OACCK
V
ACCK-OFF
f
APC
1
f
APC
2
f
AFC
2
f
AFC
1
T14A burst level measured with V
IN
= 1 Vp-p CTL 0
standard color bar signal 1
t
D
t
W
Down-converted chroma level/FM level ratio with 100%
chroma input
(R
L
: 5.1 k
)
SP/EP and LP T14A burst level ratio with V
IN
= 1Vp-p
standard color bar signal
T56 output amplitude measured with FET probe at
V
IN
= 1 Vp-p standard color bar signal
T56 output amplitude measured with FET probe at
V
IN
= 1 Vp-p standard color bar signal
T14A burst level measured and compared to VOR-14
with V
IN
= 1 Vp-p standard color bar signal and chroma
signal only boosted by +6 dB
T14A burst level measured and compared to VOR-14
with V
IN
= 1 Vp-p standard color bar signal and chroma
signal only boosted by 6 dB
T14A input burst level measured when output goes off
and compared to standard input level, with V
IN
= 1 Vp-p
standard color bar signal and chroma signal being
gradually attenuated.
From killer condition as described above, T14A input
burst level is measured when output goes on with input
chroma level being gradually increased. This is
compared to standard input level.
Continued from preceding page
T37
T60
tD tW
A10276
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