Sony ICD-UX71 Service Manual page 25

• IC Pin Function Description
AUDIO BOARD IC1001 AK4645EZ-L (STEREO CODEC, MIC/HP AMP)
Pin No. Pin Name
1 MPWR
2 VCOM
3 AVSS
4 AVDD
5 VCOC/RIN3
6 I2C
7 PDN
8 CSN/CAD0
9 CCLK/SCL
10 CDTI/SDA
11 SDTI
12 SDTO
13 LRCK
14 BICK
15 DVDD
16 TVDD
17 MCKI
18 MCKO
19 HVSS
20 HVDD
21 HPR
22 HPL
23 MUTE
24 RIN4/IN4–
25 LIN4/IN4+
26 ROUT/LON
27 LOUT/LOP
28 MIN/LIN3
29 RIN2/IN2–
30 LIN2/IN2+
31 LIN1/IN1–
32 RIN1/IN1+
I/O
O Power supply pin for microphone
O Common voltage output
— Analog ground pin
— Analog power supply pin
O PLL loop fi lter signal output
I Control mode select signal input
I Power down mode signal input
I Chip select signal input
I Control clock signal input
I Control data signal input
I Audio serial data signal input
O Audio serial data signal output
I/O In/out channel clock signal input/output
I/O Audio serial clock signal input/output
— Digital power supply pin
— Digital in/out power supply pin
I External master clock signal input
O External master clock signal output
— Headphone amplifi er ground pin
— Headphone amplifi er power supply pin
O R-CH headphone amplifi er signal output
O L-CH headphone amplifi er signal output
O Mute signal output
I R-CH analog signal input 4
I L-CH analog signal input 4
O R-CH line output Not used. (Open)
O L-CH line output Not used. (Open)
I Monaural analog signal input
I R-CH analog signal input 2
I L-CH analog signal input 2
I L-CH analog signal input 1
I R-CH analog signal input 1
ICD-UX71/UX71F/UX81/UX81F/UX91F
Description
Bias voltage of ADC output and DAC output
"H": I2C bus
"H": Power up, "L": Power down, reset
Not used. (Connect to ground.)
Not used. (Open)
Not used. (Open)
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