TS4855_04 Datasheet, PDF (1/27 Pages) STMicroelectronics – LOUDSPEAKER & HEADSET DRIVER WITH VOLUME CONTROL

TS4855
LOUDSPEAKER & HEADSET DRIVER
WITH VOLUME CONTROL
s OPERATING FROM V_CC = 3.0 V to 5.0 V
s SPEAKER: Mono, THD+N @ 1 kHz is 1%
Max @ 1 W into 8 Ω BTL
s HEADSET: Stereo, THD+N @ 1 kHz is 0.5%
Max. @ 85 mW into 32 Ω BTL
s VOLUME CONTROL: 32-step digital
volume control
s OUTPUT MODE: Eight different selections
s Ultra low pop-and-click
s Low Shutdown Current (0.1 µA, typ.)
s Thermal Shutdown Protection
s FLIP-CHIP Package 18 X 300 µm Bumps
s TS4855E IJT Lead-Free option available
DESCRIPTION
The TS4855 is a complete low power audio
amplifier solution targeted at mobile phones. It
integrates, into an extremely compact flip-chip
package, an audio amplifier, a speaker driver, and
a headset driver.
The Audio Power Amplifier can deliver 1.1 W
(typ.) of continuous RMS output power into an 8 Ω
speaker with a 1% THD+N value. To the headset
driver, the amplifier can deliver 85 mW (typ.) per
channel of continuous average power into stereo
32 Ω bridged-tied load with 0.5% THD+N @ 5 V.
This device features a 32-step digital volume
control and 8 different output selections. The
digital volume and output modes are controlled
through a three-digit SPI interface bus.
PIN CONNECTIONS (top view)
TS4855IJT - Flip Chip
Pin Out (top view)
APPLICATIONS
• Mobile Phones
ORDER CODE
Part Number
TS4855IJT
TS4855EIJT
Temperature
Range
-40, +85°C
-40, +85°C
Package
J
•
•
J = Flip Chip Package - only available in Tape & Reel (JT))
March 2004
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