UPD9930 datasheet(5/78 Pages) NEC

5 / 78 page

µPD9930

CONTENTS

1. PIN FUNCTIONS ........................................................................................................................... 6

1.1 LIST OF PIN FUNCTIONS ..................................................................................................................... 6

1.2 PIN EQUIVALENT CIRCUIT .................................................................................................................. 8

2. BLOCK FUNCTIONS ..................................................................................................................... 9

2.1 CODEC .................................................................................................................................................... 9

2.1.1 Audio Codec .............................................................................................................................. 9

2.1.2 Audio Analog Input .................................................................................................................. 9

2.1.3 Audio Analog Output ............................................................................................................. 10

2.1.4 Audio Digital Accessory Output ........................................................................................... 11

2.1.5 Audio Digital Signal Processor ............................................................................................ 11

2.1.6 Power Up/Down Control ........................................................................................................ 12

2.1.7 Microcontroller Interface ....................................................................................................... 18

2.1.8 DSP Interface .......................................................................................................................... 19

2.1.9 DAI (Digital Audio Interface) ................................................................................................. 22

3. TONE INTERVAL OUTPUT FUNCTION (TIMER TERMINAL) ................................................. 29

4. INTERNAL CONTROL FUNCTIONS ........................................................................................... 30

4.1 SEND/RECEIVE GAIN CONTROL ...................................................................................................... 30

4.1.1 Voice Send Analog Gain/Receiver Amplifier 2 Control Register (TXGCR) .................... 32

4.1.2 Voice Receive Analog Gain Control Register (RXGCR) ................................................... 33

4.1.3 Voice Send/Receive Digital Gain Control Register (DGGSR) .......................................... 35

4.2 DIGITAL INPUT/OUTPUT CONTROL ................................................................................................. 37

4.2.1 Digital Signal Processing Control Register (DSPCR) ....................................................... 38

4.3 TONE CONTROL .................................................................................................................................. 40

4.3.1 Tone Frequency Selection Register (FRQSR) .................................................................... 43

4.3.2 Expanded Tone Registers (EXPR1, EXPR2) ....................................................................... 45

4.3.3 Tone Control Register (TONCR) ........................................................................................... 47

4.3.4 Tone Gain Control Register (TNGCR) ................................................................................. 48

4.4 TEST MODE CONTROL ...................................................................................................................... 50

4.4.1 Test Control Register (TSTCR) ............................................................................................. 52

5. ELECTRICAL CHARACTERISTICS ............................................................................................ 53

6. APPLIED CIRCUIT EXAMPLE .................................................................................................... 73

7. PACKAGE DRAWINGS ............................................................................................................... 74

8. RECOMMENDED SOLDERING CONDITIONS ......................................................................... 75

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