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TS2012 Datenblatt(PDF) 1 Page - STMicroelectronics

Teilenummer TS2012
Bauteilbeschribung  Filter-free stereo 2x2.8W class D audio power amplifer
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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December 2007
Rev 1
1/30
30
TS2012
Filter-free stereo 2x2.8W class D audio power amplifer
Features
Operating range from VCC=2.5V to 5.5V
Standby mode active low
Output power per channel : 1.35W @5V or
0.68W @ 3.6V into 8
Ω with 1% THD+N max.
Output power per channel : 2.2W @5V into 4
Ω
with 1% THD+N max.
Four gains select : 6, 12, 18, 24 dB
Low current consumption
PSRR: 70dB typ @ 217Hz with 6dB gain.
Fast start-up phase: 1ms
Thermal shutdown protection
QFN20 4x4mm lead-free package
Applications
Cellular phone
PDA
Flat panel TV
Description
The TS2012 is a stereo fully differential class D
power amplifier. Able to drive up to 1.35W into an
8
Ω load at 5V per channel. It achieves
outstanding efficiency compared to typical class
AB audio amps.
The device has four different gain settings utilizing
two discrete pins: G0 and G1.
Pop & click reduction circuitry provides low on/off
switch noise while allowing the device to start
within 1ms.
Two standby pins (active low) allow each channel
to be switched off independently.
The TS2012 is available in a QFN20 package in
4x4 mm dimension.
Gain
Select
PWM
H
Bridge
LIN +
LIN -
G0
G1
LOUT+
LOUT-
STBY L
STBY R
Gain
Select
PWM
H
Bridge
RIN -
RIN +
ROUT+
ROUT-
Oscillator
Standby
Control
1
2
5
7
8
11
14
15
16
17
19
20
TS2012IQT - QFN20 (4x4)
G1
G0
Lout+
PVCC
PGND
PVCC
Rout+
PGND
Lout-
Rout-
1
2
4
3
5
67
8
910
11
12
13
14
15
16
17
18
19
20
G1
G0
Lout+
PVCC
PGND
PVCC
Rout+
PGND
Lout-
Rout-
1
2
4
3
5
67
8
910
11
12
13
14
15
16
17
18
19
20
Pin connections (top view)
Block diagram
www.st.com


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