参数资料
型号: TS4962IQT
厂商: STMICROELECTRONICS
元件分类: 音频/视频放大
英文描述: 2.8 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO8
封装: 3 X 3 MM, ROHS COMPLIANT, DFN-8
文件页数: 1/44页
文件大小: 586K
代理商: TS4962IQT
January 2010
Doc ID 10968 Rev 8
1/44
44
TS4962
2.8 W filter-free mono class D audio power amplifier
Features
Operating from VCC = 2.4 V to 5.5 V
Standby mode active low
Output power: 2.8 W into 4
Ω and 1.7 W into
8
Ω with 10% THD+N maximum and 5 V power
supply
Output power: 2.2 W at 5 V or 0.7 W at 3.0 V
into 4
Ω with 1% THD+N maximum
Output power: 1.4 W at 5 V or 0.5 W at 3.0 V
into 8
Ω with 1% THD+N maximum
Adjustable gain via external resistors
Low current consumption 2 mA at 3 V
Efficiency: 88% typical
Signal to noise ratio: 85 dB typical
PSRR: 63 dB typical at 217 Hz with 6 dB gain
PWM base frequency: 280 kHz
Low pop & click noise
Thermal shutdown protection
Available in DFN8 3 x 3 mm package
Applications
Cellular phones
PDAs
Notebook PCs
Description
The TS4962 is a differential class-D BTL power
amplifier. It can drive up to 2.2 W into a 4
Ω load
and 1.4 W into an 8
Ω load at 5 V. It achieves
outstanding efficiency (88% typ.) compared to
standard AB-class audio amps.
The gain of the device can be controlled via two
external gain setting resistors. Pop & click
reduction circuitry provides low on/off switch noise
while allowing the device to start within 5 ms. A
standby function (active low) enables the current
consumption to be reduced to 10 nA typical.
DFN8 3 x 3 mm
TS4962IQT pinout
1
2
3
4
8
7
6
5
EXPOSED
PAD
1
2
3
4
8
7
6
5
EXPOSED
PAD
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