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TS4999 Datasheet

Filter-free stereo 2.8W class D audio power amplifier

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TS4999
Filter-free stereo 2.8 W class D audio power amplifier
with selectable 3D sound effects
Features
Operates from VCC = 2.4 to 5.5 V
Dedicated standby mode active low/channel
Output power per channel: 2.8 W at 5 V into
4 Ω with 10% THD+N or 0.7 W at 3.6 V into 8 Ω
with 1% THD+N max.
Selectable 3D sound effect
Four gain setting steps: 3.5, 6, 9.5 and 12 dB
Low current consumption
PSSR: 63 dB typical at 217 Hz.
Fast start up phase: 7.8 ms
Short-circuit and thermal shutdown protection
Flip chip 18-bump lead-free package
Applications
Cellular phones
PDAs
Notebook PCs
Description
The TS4999 is a stereo fully-differential class D
power amplifier. It can drive up to 1.35 W into a
8 Ω load at 5 V per channel. 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 8 ms. 3D enhancement effects are
selected through one digital input pin that allows
more amazing stereo audio sound.
Two standby pins (active low) allow each channel
to be switched off separately.
The TS4999 is available in a flip chip, 18-bump,
lead-free package.
Flip chip 18-bump package
Pin connections (top view)
LOUT-
PGND
ROUT-
LPVCC
RPVCC
LOUT+
AGND
STDBYL
LIN-
G1
G0
ROUT+
AVCC
STDBYR
RIN-
LIN+
3D RIN+
December 2008
Rev 1
1/36
www.st.com
36


STMicroelectronics Electronic Components Datasheet

TS4999 Datasheet

Filter-free stereo 2.8W class D audio power amplifier

No Preview Available !

Contents
Contents
TS4999
1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1 Differential configuration principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2 Gain settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3 3D effect enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.4 Low frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.5 Circuit decoupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.6 Wakeup (tWU) and shutdown (tSTBY) times . . . . . . . . . . . . . . . . . . . . . . . 26
4.7 Consumption in shutdown mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.8 Single-ended input configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.9 Output filter considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.10 Short-circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.11 Thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.1 Flip chip package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.2 Tape and reel package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2/36


Part Number TS4999
Description Filter-free stereo 2.8W class D audio power amplifier
Maker STMicroelectronics
Total Page 30 Pages
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