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TS4956 Datasheet(PDF) 1 Page - STMicroelectronics

Part No. TS4956
Description  Stereo audio amplifier system with I2C bus interface
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4956 Datasheet(HTML) 1 Page - STMicroelectronics

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May 2006
Rev. 3
1/51
51
TS4956
Stereo audio amplifier system with I2C bus interface
Operating from VCC = 2.7 V to 5.5 V
I²C bus control interface
38 mW output power @ VCC =3.3 V,
THD = 1%, F = 1 kHz, with 16
Ω Load
Ultra low consumption in standby mode: 0.5 µA
Digital volume control range from +12 dB to
-34 dB
32-step digital volume control
Stereo loudspeaker option by I2C
8 different output mode selections
Pop & click reduction circuitry
Flip-chip package, 18 bumps with 300 µm
diameter
Lead-free flip chip package
Output power limitation on headphone for
eardrum damage consideration
Description
The TS4956 is a complete audio system device
with three dedicated outputs, one stereo
headphone, one loudspeaker drive and one mono
line for a hands-free set. The stereo headphone is
capable of delivering more than 25 mW per
channel of continuous average power into 16
single-ended loads with 0.3% THD+N from a 5 V
power supply. The device functions are controlled
via an I²C bus, which minimizes the number of
external components needed.
The overall gain and the different output modes of
the TS4956 are controlled digitally by the control
registers which are programmed via the I²C
interface. It has also an internal thermal shutdown
protection mechanism.
Applications
Mobile phones (cellular / cordless)
PDAs
Laptop / notebook computers
Portable audio devices
Device summary table
TS4956 - Flip-Chip18
Pin connections (top view)
RIN
LHP-
MLO
RHP+
MIN
VCC
SDA
LIN
VCC
GND
I2CVCC
MIP
SRP+
SRN-
SCL
GND
BYPASS
PGH
RIN
LHP-
MLO
RHP+
MIN
VCC
SDA
LIN
VCC
GND
I2CVCC
MIP
SRP+
SRN-
SCL
GND
BYPASS
PGH
Part Number
Temperature Range
Package
Packing
Marking
TS4956EIJT
-40°C to +85°C
Lead free flip-chip18
Tape & Reel
56
www.st.com


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