1/6
s
OPERATING FROM V
CC
= 2.2V to 5.5V
s
1W OUTPUT POWER @ Vcc=5V, THD=1%,
f=1kHz, with 8
Load
s
ULTRA LOW CONSUMPTION IN STANDBY
MODE (10nA)
s
62dB PSRR @ 217Hz @ Grounded mode
s
Zero POP & CLICK
s
ULTRA LOW DISTORTION (0.1%)
s
UNITY GAIN STABLE
s
AVAILABLE IN 9 BUMPS Flip Chip Package
DESCRIPTION
The TS4990 has been designed for demanding
audio applications such as mobile phones and to
minimize the number of external components.
This Audio Power Amplifier is capable of deliver-
ing 1W of continuous RMS Ouput Power into an
8
load @ 5V.
An externally controlled standby mode control re-
duces the supply current to less than 10nA. It also
includes an internal thermal shutdown protection.
The unity-gain stable amplifier can be configured
by external gain setting resistors.
APPLICATIONS
s
Mobile Phones (Cellular / Cordless)
s
Laptop / Notebook Computers
s
PDAs
s
Portable Audio Devices
ORDER CODE
J = Flip Chip Package - only available in Tape & Reel (JT)
PIN CONNECTIONS (top view)
Part Number
Temperature
Range
Package
J
TS4990IJT
-40, +85C
TYPICAL APPLICATION SCHEMATIC
TS4990JT - FLIP CHIP
STBY
Vin+
Vout1
Vin-
GND
GND
VCC
BYPASS
VOUT2
1
2
3
4
5
6
7
8
9
STBY
Vin+
Vout1
Vin-
GND
GND
VCC
BYPASS
VOUT2
1
2
3
4
5
6
7
8
9
Rfeed
Rin
Audio In
Cfeed
Bias
AV = -1
Vin-
Vin+
Bypass
Standby
VCC
GND
Vout 1
Vout 2
+
-
+
-
7
5
1
3
4
8
6
2
9
TS4990
Vcc
Cin
+
Cs
+
Cb
Standby
Control
Speaker
8 Ohms
1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW
STANDBY MODE
This is a preliminary information on a new product now in development. Details are subject to change without notice.
February 2003
ADVANCE DATA
TS4990
TS4990
2/6
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
CC
Supply voltage
1)
6
V
V
i
Input Voltage
2)
G
ND
to V
CC
V
T
oper
Operating Free Air Temperature Range
-40 to + 85
C
T
stg
Storage Temperature
-65 to +150
C
T
j
Maximum Junction Temperature
150
C
R
thja
Thermal Resistance Junction to Ambient
3)
Flip Chip
TBD
C/W
Pd
Power Dissipation
Internally Limited
ESD
Human Body Model
2
kV
ESD
Machine Model
200
V
Latch-up Immunity
Class A (200mA)
Lead Temperature (soldering, 10sec)
250
C
1. All voltages values are measured with respect to the ground pin.
2. The magnitude of input signal must never exceed V
CC
+ 0.3V / G
ND
- 0.3V
3. Device is protected in case of over temperature by a thermal shutdown active @ 150C.
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
2.2 to 5.5
V
V
ICM
Common Mode Input Voltage Range
1.2V to V
CC
V
V
STB
Standby Voltage Input :
Device ON
Device OFF
1.2
V
STB
V
CC
GND
V
STB
0.4
V
R
L
Load Resistor
4 - 32
R
OUT
GND
Resistor Output to GND
> 1
M
T
SD
Thermal Shutdown Temperature
150 min.
C
R
thja
Thermal Resistance Junction to Ambient
1)
TBD
C/W
1. This thermal resistance can be reduced with a suitable PCB layout .
TS4990
3/6
ELECTRICAL CHARACTERISTICS
V
CC
= +5V, GND = 0V, T
amb
= 25C (unless otherwise specified)
V
CC
= +3.3V, GND = 0V, T
amb
= 25C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
I
CC
Supply Current
No input signal, no load
4
6
mA
I
STANDBY
Standby Current
1)
No input signal, Vstdby = G
ND
, RL = 8
1. Standby mode is actived when Vstdby is tied to Gnd
10
1000
nA
Voo
Output Offset Voltage
No input signal, RL = 8
5
20
mV
Po
Output Power
THD = 1% Max, f = 1kHz, RL = 8
0.8
1
W
THD + N
Total Harmonic Distortion + Noise
Po = 250mW rms, Gv = 2, 20Hz < f < 20kHz, RL = 8
0.15
%
PSRR
Power Supply Rejection Ratio
2)
RL = 8
,
Gv = 2
,
Vripple = 200mVpp, Input Grounded
F = 217Hz
F = 1kHz
2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc.
55
55
62
66
dB
T
WU
Wake-Up Time
100
TBD
ms
Symbol
Parameter
Min.
Typ.
Max.
Unit
I
CC
Supply Current
No input signal, no load
4
6
mA
I
STANDBY
Standby Current
1)
No input signal, Vstdby = G
ND
, RL = 8
1. Standby mode is actived when Vstdby is tied to Vcc
10
1000
nA
Voo
Output Offset Voltage
No input signal, RL = 8
5
20
mV
Po
Output Power
THD = 1% Max, f = 1kHz, RL = 8
380
450
mW
THD + N
Total Harmonic Distortion + Noise
Po = 250mW rms, Gv = 2, 20Hz < f < 20kHz, RL = 8
0.15
%
PSRR
Power Supply Rejection Ratio
2)
RL = 8
,
Gv = 2
,
Vripple = 200mVpp, Input Grounded
F = 217Hz
F = 1kHz
2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc.
55
55
62
66
dB
T
WU
Wake-Up Time
130
TBD
ms
TS4990
4/6
ELECTRICAL CHARACTERISTICS
V
CC
= 2.6V, GND = 0V, T
amb
= 25C (unless otherwise specified)
REMARKS
1. All measurements, except PSRR measurements, are made with a supply bypass capacitor Cs = 1F.
2. The standby response time is about 1s.
Symbol
Parameter
Min.
Typ.
Max.
Unit
I
CC
Supply Current
No input signal, no load
4
6
mA
I
STANDBY
Standby Current
1)
No input signal, Vstdby = G
ND
, RL = 8
1. Standby mode is actived when Vstdby is tied to Vcc
10
1000
nA
Voo
Output Offset Voltage
No input signal, RL = 8
5
20
mV
Po
Output Power
THD = 1% Max, f = 1kHz, RL = 8
210
260
mW
THD + N
Total Harmonic Distortion + Noise
Po = 200mW rms, Gv = 2, 20Hz < f < 20kHz, RL = 8
0.15
%
PSRR
Power Supply Rejection Ratio
2)
RL = 8
,
Gv = 2
,
Vripple = 200mVpp, Input Grounded
F = 217Hz
F = 1kHz
2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc.
55
55
62
66
dB
T
WU
Wake-Up Time
130
TBD
ms
Components
Functional Description
Rin
Inverting input resistor which sets the closed loop gain in conjunction with Rfeed. This resistor also
form a high pass filter with Cin (fc = 1 / (2 x Pi x Rin x Cin))
Cin
Input coupling capacitor which blocks the DC voltage at the amplifier input terminal
Rfeed
Feed back resistor which sets the closed loop gain in conjunction with Rin
Cs
Supply Bypass capacitor which provides power supply filtering
Cb
Bypass pin capacitor which provides half supply filtering
Cfeed
Low pass filter capacitor allowing to cut the high frequency (low pass filter cut-off frequency
1 / (2 x Pi x Rfeed x Cfeed))
Gv
Closed loop gain in BTL configuration = 2 x (Rfeed / Rin)
TS4990
5/6
TS4990IJT
PIN OUT (top view)
MARKING (top view)
PACKAGE MECHANICAL DATA
FLIP CHIP - 9 BUMPS
s
Balls are underneath
STBY
Vin+
Vout1
Vin-
GND
GND
VCC
BYPASS
VOUT2
1
2
3
4
5
6
7
8
9
STBY
Vin+
Vout1
Vin-
GND
GND
VCC
BYPASS
VOUT2
1
2
3
4
5
6
7
8
9
s
ST Logo
s
Part number 4990
s
Three digits Datecode : YWW
s
The dot is for marking pin 1
YWW 4990
250m
5
00
m
YWW 4990
250m
5
00
m
s
Die size : (1.6mm 10%) x (1.6mm 10%)
s
Die height (including bumps) : 600m
30m
s
Bumps diameter : 315m 15m
s
Pitch: 500m 10m
1.6mm
0.5mm
0.
5m
m
0.5mm
0.
5m
m
1.6mm
1.6mm
0.5mm
0.
5m
m
0.5mm
0.
5m
m
1.6mm
600m
600m
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