DS242F5

3

CS4297

CrystalClear™ SoundFusion™ Audio Codec ’97

Input Mux Select Register (Index 1Ah) ............................................... 25

Record Gain Register (Index 1Ch) ..................................................... 26

Record Gain Mix (Index 1Eh) ............................................................. 26

General Purpose Register (Index 20h) ............................................... 26

Powerdown Control/Status Register (Index 26h) ............................... 27

Reserved Registers (Index 28h - 58h) ................................................ 27

Crystal Revision and Fab ID Register (Index 5Ah) ............................. 27

Vendor Reserved Registers (Index 5C - 7Ah) .................................... 28

Vendor ID1 (Index 7Ch) ..................................................................... 28

POWER MANAGEMENT ................................................................................... 29

ANALOG HARDWARE DESCRIPTION ............................................................ 29

Line-Level Inputs ....................................................................................... 29

Microphone Level Inputs ........................................................................... 30

Mono Inputs .............................................................................................. 30

Line Level Outputs .................................................................................... 31

Miscellaneous Analog Signals .................................................................. 32

Power Supplies ......................................................................................... 32

GROUNDING AND LAYOUT ............................................................................. 33

PERFORMANCE PLOTS ................................................................................... 34

PIN DESCRIPTIONS........................................................................................... 39

Digital I/O Pins .................................................................................... 39

Analog I/O Pins .................................................................................. 40

Filter and Reference Pins ................................................................... 42

Power Supplies .................................................................................. 43

REFERENCES ................................................................................................... 43

PACKAGE DIMENSIONS ................................................................................... 44

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