UPD9930 datasheet(4/78 Pages) NEC

4 / 78 page

µPD9930

Pin Name

AGND1-AGND4

: Analog Ground

AVDD1, AVDD2

: Analog Power Supply

DCLK

: DAI (Digital Audio Interface) Clock Output

DGND

: Digital Ground

: DAI Serial Input

: DAI Serial Output

DRSTB

: DAI Reset

DSPSEL

: Digital Signal Processor Select

DVDD

: Digital Power Supply

FSYNC

: Frame Synchronization Signal Input

: Internally Connected

MCLK

: Microcontroller Synchronous Clock

MDAT

: Microcontroller Serial Data

MICI+

: Microphone Amplifier Input Non-Inverted

MICI–

: Microphone Amplifier Input Inverted

MICO

: Microphone Amplifier Output

MIXI

: Mixer Input

MSTR

: Microcontroller Strobe

RACOMI

: Receive Common Reference Voltage Input

RACOMO

: Receive Common Reference Voltage Output

RAUXO

: Receive Auxiliary Amplifier Output

REC1O

: Receive Amplifier 1 Output

REC2I–

: Receive Amplifier 2 Input Inverted

REC2O+

: Receive Amplifier 2 Output Non-Inverted

REC2O–

: Receive Amplifier 2 Output Inverted

REQB

: Request

RESETB

: Reset

RINGER

: Ringer

SCLK

: Serial Data Synchronous Clock Output

SEN

: Serial Data Output Enable

: Serial Data Input

: Serial Data Output

TC1, TC2

: DAI Mode Control

TEST

: Test

TIMER

: Timer

XACOMI

: Transmit Common Reference Voltage Input

XACOMO

: Transmit Common Reference Voltage Output

XAUXI–

: Transmit Auxiliary Amplifier Input Inverted

XAUXO

: Transmit Auxiliary Amplifier Output

UPD9930 Datasheet(PDF) 4 Page - NEC

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