48
4-32.
IC PIN FUNCTION DESCRIPTION
• DIGITAL BOARD IC1101 LC89055W-RA8 (AUDIO INTERFACE RECEIVER)
Pin No.
Pin Name
I/O
Description
1
DISEL
I
Input data select terminal (fixed at “L” in this set)
2
DOUT
O
EIAJ data and parity output terminal Not used
3
DIN0
I
Amp integrate data input from the select switch (IC1005)
4
DIN1
O
Amp integrate data input terminal Not used (fixed at “L”)
5
DIN2
I
Amp integrate data input terminal Not used (fixed at “L”)
6
DGND
—
Ground terminal (digital system)
7
DVDD
—
Power supply terminal (+5V) (digital system)
8
R
I
Input terminal for VCO generator band adjustment
9
VIN
I
Input terminal for VCO self running frequency set
10
LPF
O
External LPF for PLL is connected to this terminal
11
AVDD
—
Power supply terminal (+5V) (analog system)
12
AGND
—
Ground terminal (analog system)
13
CK OUT
O
Clock signal output to the A/D, D/A converter (IC1503)
14
BCK
O
Bit clock signal output to the A/D, D/A converter (IC1503), dolby digital audio decoder
(IC1301), and audio DSP (IC1401)
15
LRCK
O
Clock signal output to the A/D, D/A converter (IC1503), dolby digital audio decoder
(IC1301), and audio DSP (IC1401)
16
DATAO
O
Audio data output to the dolby digital audio decoder (IC1301)
17
XSTATE
O
Clock status flag output to the system controller (IC1201)
18
DGND
—
Ground terminal (digital system)
19
DVDD
—
Power supply terminal (+5V) (digital system)
20
XMCK
O
Not used (open)
21
XOUT
O
Clock output terminal Not used (open)
22
XIN
I
Clock input from the clock oscillator (IC1404) (12.288MHz)
23
EMPHA
O
Emphasis monitor output terminal “H”: on Not used
24
AUDIO
O
Terminal for check
25
CSFLAG
O
Not used (open)
26
F0/P0/C0
O
Terminal for check
27
F1/P1/C1
O
Terminal for check
28
F2/P2/C2
O
Terminal for check
29
F3/P3/C3
O
Terminal for check
30
DVDD
—
Power supply terminal (+5V) (digital system)
31
DGND
—
Ground terminal (digital system)
32
AUTO
O
Not used (open)
33
BPSYNC
O
Not used (open)
34
ERROR
O
Error mute output to the system controller (IC1201)
35
DO
O
C-bit output to the system controller (IC1201)
36
DI
I
Data input from the system controller (IC1201)
37
CE
I
Chip enable signal input from the system controller (IC1201)
38
CLK
I
Clock signal input from the system controller (IC1201)
39
XSEL
I
Clock select terminal (fixed at “H” in this set)
40
MODE0
I
Mode 0 input terminal (fixed at “L” in this set)
41
MODE1
I
Mode 1 input terminal (fixed at “L” in this set)
42
DGND
—
Ground terminal (digital system)
43
DVDD
—
Power supply terminal (+5V) (digital system)
