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TS421IQT 数据表(PDF) 1 Page - STMicroelectronics

部件名 TS421IQT
功能描述  360 mW mono amplifier with standby mode
PDF  42 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS421IQT 数据表(HTML) 1 Page - STMicroelectronics

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Features
•
Operating from VCC = 2 V to 5.5 V
•
Standby mode active high (TS419) or low (TS421)
•
Output power into 16 Ω: 367 mW @ 5 V with 10% THD+N max or 295 mW @
5 V and 110 mW @ 3.3 V with 1% THD+N max.
•
Low current consumption: 2.5 mA max.
•
High signal-to-noise ratio: 95 dB (A) at 5 V
•
PSRR: 56 dB typ. at 1 kHz, 46 dB at 217 Hz
•
Short-circuit limitation
•
ON/OFF click reduction circuitry
•
Available in MiniSO8 and DFN 3x3
Applications
•
16 / 32 Ω earpiece or receiver speaker driver
•
Mobile and cordless phones (analog / digital)
•
PDAs & computers
•
Portable appliances
Description
The TS419 / TS421, is a monaural audio power amplifier driving in BTL mode a 16 or
32 Ω earpiece or receiver speaker. The main advantage of this configuration is to get
rid of bulky output capacitors.
Capable of descending to low voltages, it delivers up to 220 mW per channel (into
16 Ω loads) of continuous average power with 0.2% THD+N in the audio bandwidth
from a 5 V power supply.
An externally controlled standby mode reduces the supply current to 10 nA (typ.).
The TS419 / TS421 can be configured by external gain-setting resistors.
TS419IST : MiniSO8
Standby
Bypass
V +
IN
VIN-
VOUT2
GND
VCC
VOUT1
1
2
3
4
8
7
6
5
TS421IQT : DFN8
Standby
Bypass
V +
IN
VIN-
VOUT2
GND
VCC
VOUT1
1
2
3
4
5
8
7
6
Maturity status link
TS419, TS421
360 mW mono amplifier with standby mode
TS419, TS421
Datasheet
DS3048 - Rev 7 - April 2025
For further information, contact your local STMicroelectronics sales office.
www.st.com


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