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STMicroelectronics Electronic Components Datasheet

TS2012 Datasheet

Filter-free stereo 2 x 2.8W class D audio power amplifier

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TS2012
Filter-free stereo 2x2.8 W class D audio power amplifier
TS2012 - QFN20 (4x4 mm)
Pin connections (top view)
20 19 18 17 16
1 G1
2 Lout+
3 PVCC
4 PGND
5 Lout-
G0 15
Rout+ 14
PVCC 13
PGND 12
Rout- 11
6 7 8 9 10
Block diagram
20 LIN +
19 LIN -
15 G0
1 G1
Gain
Select
16 RIN +
17 RIN -
7 STBY L
8 STBY R
Gain
Select
Standby
Control
PWM
H
Bridge
LOUT+ 2
LOUT- 5
Oscillator
PWM
H
Bridge
ROUT+ 14
ROUT- 11
Datasheet - production data
Features
Operating range from VCC = 2.5 V to 5.5 V
Standby mode active low
Output power per channel: 1.35 W @ 5 V or
0.68 W @ 3.6 V into 8 Ω with 1 % THD+N max
Output power per channel: 2.2 W @ 5 V into
4 Ω with 1 % THD+N max
Four gains can be selected: 6, 12, 18, 24 dB
Low current consumption
PSRR: 70 dB typ @ 217 Hz with 6 dB gain
Fast startup phase: 1 ms
Thermal shutdown protection
QFN20 4x4 mm lead-free package
Applications
Cellular phone
PDA
Flat panel TV
Description
The TS2012 is a fully differential, class D, power
amplifier stereo. It is able to drive up to 1.35 W
into an 8 Ω load at 5 V 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 and click reduction circuitry provides low
on/off switch noise while allowing the device to
start within 1 ms.
Two standby pins (active low) allow each channel
to be switched off independently.
The TS2012 is available in a QFN20 4x4 mm
package.
July 2013
This is information on a product in full production.
DocID14236 Rev 2
1/29
www.st.com


STMicroelectronics Electronic Components Datasheet

TS2012 Datasheet

Filter-free stereo 2 x 2.8W class D audio power amplifier

No Preview Available !

Contents
Contents
TS2012
1 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3
2 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Electrical characteristic tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 Differential configuration principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2 Gain settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3 Common mode feedback loop limitations . . . . . . . . . . . . . . . . . . . . . . . . 21
4.4 Low frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.5 Decoupling of the circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.6 Wakeup time (twu) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.7 Shutdown time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.8 Consumption in shutdown mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.9 Single-ended input configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.10 Output filter considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.1 QFN20 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2/29 DocID14236 Rev 2


Part Number TS2012
Description Filter-free stereo 2 x 2.8W class D audio power amplifier
Maker STMicroelectronics
Total Page 29 Pages
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