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STMicroelectronics - 360mW MONO AMPLIFIER WITH STANDBY MODE

Numéro de référence TS419-8
Description 360mW MONO AMPLIFIER WITH STANDBY MODE
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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TS419-8 fiche technique
TS419
TS421
360mW MONO AMPLIFIER WITH STANDBY MODE
s OPERATING FROM Vcc=2V to 5.5V
s STANDBY MODE ACTIVE HIGH (TS419) or
LOW (TS421)
s OUTPUT POWER into 16: 367mW @ 5V
with 10% THD+N max or 295mW @5V and
110mW @3.3V with 1% THD+N max.
s LOW CURRENT CONSUMPTION: 2.5mA max
s High Signal-to-Noise ratio: 95dB(A) at 5V
s PSRR: 56dB typ. at 1kHz, 46dB at 217Hz
s SHORT CIRCUIT LIMITATION
s ON/OFF click reduction circuitry
s Available in SO8, MiniSO8 & DFN 3x3
DESCRIPTION
The TS419/TS421 is a monaural audio power am-
plifier driving in BTL mode a 16 or 32earpiece or
receiver speaker. The main advantage of this con-
figuration is to get rid of bulky ouput capacitors.
Capable of descending to low voltages, it delivers
up to 220mW per channel (into 16loads) of con-
tinuous average power with 0.2% THD+N in the
audio bandwidth from a 5V power supply.
An externally controlled standby mode reduces
the supply current to 10nA (typ.). The TS419/
TS421 can be configured by external gain-setting
resistors or used in a fixed gain version.
APPLICATIONS
s 16/32 ohms earpiece or receiver speaker driver
s Mobile and cordless phones (analog / digital)
s PDAs & computers
s Portable appliances
ORDER CODE
Part
Number
Temp.
Range:
I
Package
DS Q
Gain Marking
TS419
external TS419I
TS421
external TS421I
TS419
• • external K19A
TS419-2
tba tba x2/6dB K19B
TS419-4
-40, +85°C
TS419-8
tba tba x4/12dB K19C
tba tba x8/18dB K19D
TS421
• • external K21A
TS421-2
tba tba x2/6dB K21B
TS421-4
tba tba x4/12dB K21C
TS421-8
tba tba x8/18dB K21D
MiniSO & DFN only available in Tape & Reel with T suffix.
SO is available in Tube (D) and in Tape & Reel (DT)
June 2003
PIN CONNECTIONS (top view)
TS419IDT: SO8
TS419IST, TS419-xIST: MiniSO8
Standby
Bypass
VIN+
VIN-
1
2
3
4
8 VOUT2
7 GND
6 VCC
5 VOUT1
TS419IQT, TS419-xIQT: DFN8
GND 1
VOUT 2 2
STANDBY 3
BYPASS 4
8 Vcc
7 VOUT 1
6 VIN-
5 VIN+
TS421IDT: SO8
TS421IST, TS421-xIST: MiniSO8
TS421IQT, TS421-xIQT: DFN8
GND 1
VOUT 2 2
STANDBY 3
BYPASS 4
8 Vcc
7 VOUT 1
6 VIN-
5 VIN+
1/32

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