DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD9930
LINEAR CODEC FOR DIGITAL CELLULAR TELEPHONE
The
µ
PD9930 is a +3 V single power operation, low power consumption linear CODEC LSI developed for digital
cellular telephone use.
CODEC has a wide dynamic use.
This IC also features a microphone/receiver amplifier, a tone generator, DAI (Digital Audio Interface: conforming
to GSM11.10), and a power-saving function. These functions can be controlled by microcontroller.
In addition, 21 mW (TYP.) low power consumption is enabled during 3 V operation.
FEATURES
• +3 V single power supply
• Low power consumption
In operation: 7 mA (TYP.) (V
DD
= 3 V)
In stand-by mode: 50
µ
A (TYP.) (V
DD
= 3 V)
• CODEC
• 13-bit precision linear coding
• Transmission level can be controlled by microcontroller.
• Analog input/output funciton
• Low noise microphone amplifier
• High output receiver amplifier
Piezo-electric receiver can be directly driven.
Gain canbe controlled by microcontroller.
• On-chip amplifier for accessory input/output
• Tone generator
• Frequency, generating pattern and gain can be controlled
by microcontroller.
• DTMF generation function
• Various service tone generation function
• GSM triple tone generation function
• Desired tone frequency can be registered (0.3 to 3.4 kHz)
• DAI
• Conforming to GSM11.10
• Test mode can be set by terminal or microcontroller
command.
• Stand-by mode
• Rise time at time of stand-by clearing: 30.5 ms (TYP.)
• Master clock generation PLL (external clock input: 8 kHz)
• Tone interrupt pattern output function
• Ringer output function
ORDERING INFORMATION
Part Number
µ
PD9930G-22
Package
44-pin plastic QFP (10
×
10 mm)
The information in this document is subject to change without notice.
Document No. S11616EJ2V0DS00 (2nd edition)
(Previous No. IC-3342)
Date Published November 1996 N
Printed in Japan
The mark
shows major revised points.
©
1994,1996
2
RESETB
REQB
Digital signal processor
PLL
FSYNC
(8 kHz)
Pre-Filter
+ Mixer
0 or –3 dB
A/D
Transmit
BPF
SEN
DSP
INTERFACE
SO
SI
DSPSEL
Voice send
Digital
Gain Cont.
0 to –2.8 dB
(0.4 dB steps)
MIXI
MICO
(15 to 33 dB)
MICI–
BLOCK DIAGRAM
MICI+
Microphone
amplifier
–
+
SCLK
(256 kHz)
(to XACOMO)
XAUXO
(0 to 10 dB)
XAUXI–
Accessory input
amplifier
–
+
to V
ref
RAUXO
D/A
Receive
LPF
Voice receive
Digital
Gain Cont.
0 to –2.4 dB
(0.8 dB steps)
Post Filter 1
(Accessory output
amplifier)
0 dB fix
REC1O
Post Filter 2
(Receiver amplifier 1)
0 to -31 dB
(1 dB steps)
REC2I–
Receiver drive amplifier
(Receiver amplifier 2)
MCLK
MICRO-
CONTROLLER
INTERFACE
MSTR
MDAT
REC2O–
Sign code
output
–
+
to V
ref
Tone
Gain Cont.
0 to –30 dB
(1 dB steps)
–38.5 dB
Tone
Generator
REC2O+
–
+
DAI
(GSM11. 10)
Tone Interval
Generation
V
ref
DCLK
DO
DI
TC1
TC2
DRSTB
to V
ref
XACOMI
XACOMO
V
combuff
RACOMO
RACOMI
TIMER
RINGER
Low-current drive LED
µ
PD9930
µ
PD9930
PIN CONFIGURATION (Top View)
44-pin plastic QFP (10 x 10 mm)
RACOMO
XACOMO
REC2O+
REC2O–
RACOMI
XACOMI
XAUXI–
XAUXO
REC2I–
IC
Note
33
REC1O
RAUXO
AV
DD1
AV
DD2
DV
DD
SEN
SI
SO
SCLK
TEST
MSTR
34
35
36
37
38
39
40
41
42
43
44
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
MICO
MICI–
MICI+
AGND4
AGND3
AGND2
AGND1
DGND
FSYNC
RESETB
REQB
2
3
4
5
6
7
8
9
10
11
DRSTB
DI
DO
DCLK
TC1
TC2
TIMER
RINGER
MDAT
MCLK
Note
Internal connection; leave unconnected
DSPSEL
MIXI
3
µ
PD9930
Pin Name
AGND1-AGND4
AV
DD1
, AV
DD2
DCLK
DGND
DI
DO
DRSTB
DSPSEL
DV
DD
FSYNC
IC
MCLK
MDAT
MICI+
MICI–
MICO
MIXI
MSTR
RACOMI
RACOMO
RAUXO
REC1O
REC2I–
REC2O+
REC2O–
REQB
RESETB
RINGER
SCLK
SEN
SI
SO
TC1, TC2
TEST
TIMER
XACOMI
XACOMO
XAUXI–
XAUXO
: Analog Ground
: Analog Power Supply
: DAI (Digital Audio Interface) Clock Output
: Digital Ground
: DAI Serial Input
: DAI Serial Output
: DAI Reset
: Digital Signal Processor Select
: Digital Power Supply
: Frame Synchronization Signal Input
: Internally Connected
: Microcontroller Synchronous Clock
: Microcontroller Serial Data
: Microphone Amplifier Input Non-Inverted
: Microphone Amplifier Input Inverted
: Microphone Amplifier Output
: Mixer Input
: Microcontroller Strobe
: Receive Common Reference Voltage Input
: Receive Common Reference Voltage Output
: Receive Auxiliary Amplifier Output
: Receive Amplifier 1 Output
: Receive Amplifier 2 Input Inverted
: Receive Amplifier 2 Output Non-Inverted
: Receive Amplifier 2 Output Inverted
: Request
: Reset
: Ringer
: Serial Data Synchronous Clock Output
: Serial Data Output Enable
: Serial Data Input
: Serial Data Output
: DAI Mode Control
: Test
: Timer
: Transmit Common Reference Voltage Input
: Transmit Common Reference Voltage Output
: Transmit Auxiliary Amplifier Input Inverted
: Transmit Auxiliary Amplifier Output
4
µ
PD9930
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
5
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