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TPA6130A2 Datasheet(PDF) 2 Page - Texas Instruments

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Part No. TPA6130A2
Description  138-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH I2C VOLUME CONTROL
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPA6130A2 Datasheet(HTML) 2 Page - Texas Instruments

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Charge
Pump
Power
Management
VDD
GND
CPP
CPN
LEFTINM
LEFTINP
CPVSS
HPLEFT
RIGHTINM
RIGHTINP
GND
VDD
SD
SDA
SCL
HPRIGHT
Left
Right
Thermal
Current
Limit
Gain
Control
De-Pop
I2CInterface
andControl
Headphone channels are independently enabled and muted. The I2C interface controls channel gain, device
TPA6130A2
SLOS488A – NOVEMBER 2006 – REVISED DECEMBER 2006
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
FUNCTIONAL BLOCK DIAGRAM
modes, and charge pump activation. The charge pump generates a negative supply voltage for the output
amplifiers. This allows a 0 V bias at the outputs, eliminating the need for bulky output capacitors. The thermal
block detects faults and shuts down the device before damage occurs. The I2C register records thermal fault
conditions. The current limit block prevents the output current from getting high enough to damage the device.
The De-Pop block eliminates audible pops during power-up, power-down, and amplifier enable and disable
events.
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