参数资料
型号: TS4902IST
厂商: STMICROELECTRONICS
元件分类: 音频/视频放大
英文描述: 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
封装: MINI, PLASTIC, SO-8
文件页数: 1/19页
文件大小: 404K
代理商: TS4902IST
1/19
s OPERATING FROM V
CC = 2.2V to 5.5V
s 0.7W OUTPUT POWER @ Vcc=5V, THD=1%,
f=1kHz, with an 8
load
s 0.3W OUTPUT POWER @ Vcc=3.3V,
THD=1%, f=1kHz, with an 8
load
s ULTRA LOW CONSUMPTION IN STANDBY
MODE (10nA)
s 77dB PSRR @ 217Hz from 5V to 2.2V
s ULTRA LOW POP & CLICK
s ULTRA LOW DISTORTION (0.1%)
s UNITY GAIN STABLE
s AVAILABLE IN MiniSO8 & SO8
DESCRIPTION
The TS4902 is an audio power amplifier designed
to provide the best price to power ratio while pre-
serving high audio quality.
Available in MiniSO8 & SO8 package, it is capable
of delivering up to 0.7W of continuous RMS ouput
power into an 8
load @ 5V.
TS4902 is also exhibiting an outstanding 0.1%
distortion level (THD) from a 5V supply for a Pout
of 200mW RMS.
An externally controlled standby mode reduces
the supply current to less than 10nA. It also in-
cludes 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 PDAs
s Portable Audio Devices
ORDER CODE
S = MiniSO Package (MiniSO) is only available in Tape & Reel (ST)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS (top view)
Part Number
Temperature
Range
Package
ST
D
TS4902IST
-40, +85°C
TS4902ID
Standby
Bypass
V+
IN
VIN-
V2
OUT
GND
VCC
VOUT1
1
2
3
4
8
7
6
5
TYPICAL APPLICATION SCHEMATIC
TS4902IS-TS4902IST - MiniSO8
TS4902ID-TS4902IDT - SO8
Standby
Bypass
V+
IN
VIN-
V2
OUT
GND
VCC
VOUT1
1
2
3
4
8
7
6
5
Cb
Cin
Rin
Rfeed
Rstb
RL
8 Ohms
Cs
Input
Audio
Cfeed
VCC
Bias
AV = -1
Vin-
Vin+
Bypass
Standby
V
C
GND
Vout 1
Vout 2
+
-
+
-
4
2
6
5
7
1
3
8
TS4902
January 2002
TS4902
300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER
WITH STANDBY MODE ACTIVE LOW
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