Headphone Amplifier (Tda1308T); Audio Matrix Switch (Tea6422D) - Hitachi 22LD3750DC Service Manual

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6.4 Headphone Amplifier (TDA1308T)

TDA1308T is an integrated class AB stereo headphone driver contained in an SO8, DIP8, or a

TSSOP8 plastic package. SO8 package is used in 17MB29. The device is fabricated in a 1mm CMOS

process. The main features of this IC are:

• Wide temperature range

• No switch ON/OFF clicks

• Power supply ripple rejection

• Low power consumption

• Short-circuit resistance

• High performance

– high signal-to-noise ratio

– high slew rate

– low distortion

• Large output voltage swing

TEA6422D is a bus-controlled audio matrix switch in an SO28 plastic monopackage. The main

features of TEA6422 D are:

• 6 stereo inputs

• 3 stereo outputs

• Gain control

• Cascadable (2 different addresses)

• Serial bus controlled

• Low noise

• Low distortion

• ESD protection

• Wide dynamic range (3 Vrms)

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