Description Of Major Ics - JVC RX-DP10VBK Service Manual

RX-DP10VBK/RX-DP10VSL
RX-DP10RSL

Description of major ICs

AK4112 (IC673) : Digital audio receiver
1.Pin layout
DVDD
DVSS
TVDD
V/TX
XTI
XTO
PDN
R
AVDD
AVSS
RX1
RX2/DIF0
RX3/DIF1
RX4/DIF2
2.Pin function
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Note 1: All input pins except internal pull-down pins should not be left floating.
1-16
28
1 CM0/CDTO
2 27 CM1/CDT1
3 26 OCKS1/CCLK
4 25 OCKS0/CSN
5 24 MCKO1
6 23 MCKO2
7 22 DAUX
8 21 BICK
20
9 SDTO
10 19 LRCK
11 18 ERF
12 17 FS96
13 16 P/SN
14 15 AUTO
Symbol I/O
DVDD - Digital Power Supply Pin, 3.3V
DVSS - Digital Ground Pin
TVDD - Input Buffer Power Supply Pin, 3.3V or 5V
V O Validity Flag Output Pin in Parallel Mode
TX O Transmit channel (through data) Output Pin in Serial Mode
XTI I X'tal Input Pin
XTO O X'tal Output Pin
PDN I Power-Down Mode PIn
R - External Resistor Pin
AVDD - Analog Power Supply Pin
AVSS - Analog Ground Pin
RX1 I Receiver Channel 1
DIF0 I Audio Data Interface Format 0Pin in Parallel Mode
RX2 I Receiver Channel 2 in Serial Mode
DIF1 I Audio Data Interface Format 1 Pin in Parallel Mode
RX3 I Receiver Channel 3 in Serial Mode
DIF2 I Audio Data Interface Format 2 Pin in Parallel Mode
RX4 I Receiver Channel 4 in Serial Mode
AUTO O Non-PCM Detect Pin
P/S I Parallel/Serial Select Pin
FS96 O 96kHz Sampling Detect Pin
ERF O Unlock & Parity Error Output Pin
LRCK I/O Output Channel Clock Pin
SDTO O Audio Serial Data Output Pin
BICK I/O Audio Serial Data Clock Pin
DAUX I Auxiliary Audio Data Input Pin
MCK02 O Master Clock #2 Output Pin
MCK01 O Master Clock #1 Output Pin
OCKS0 I Output Clock Select 0 Pin in Parallel Mode
CSN I Chip Select Pin in Serial Mode
OCKS1 I Output Clock Select 1 Pin in Parallel Mode
CCLK I Control Data Clock Pin in Serial Mode
CM1 I Master Clock Operation Mode Pin0 in Parallel Mode
CDTI I Control Data Input Pin in Serial Mode
CM0 I Master Clock Operation Mode Pin1 in Parallel Mode
CDTO O Control Data Output Pin in Serial Mode
Function
When "L", the AK4112A is powered-down and reset.
18k +/-1% resistor to AVSS externally.
This channel is selected in Parallel Mode or default of Serial Mode.
"L": No detect, "H": Detect
"L": Serial Mode, "H": Parallel Mode
(RX Mode) "H": fs=88.2kHz or more, "L": fs=54kHz or less.
(X'tal Mode) "H": XFS96=1, "L": XFS96=0.
"L": No Error, "H": Error