Port Function Of Dac And Tv Encoder - Kenwood RXD-V555 Service Manual

Port Function of DAC & TV Encoder : ES3889 (ICM3)
Port No. Port Name
1,25,26,31,72
VSS
75,77,91,100
5,16,32,66
VCC
73, 78,90
6 DSC C
7 AUX0
9 AUX1
11 AUX2
70 AUX3
69 AUX4
68 AUX5
67 AUX6
14 AUX7
18 AUX8
20 AUX9
34 AUX10
35 AUX11
36 AUX12
38 AUX13
39 AUX14
40 AUX15
8,81,83,85
DSC D(7~0)
93,95,97,99
10 DSC S
12 DCLK
EXT CLK
13 RESET B
15 MUTE
17 MCLK
19 TWS
SPLL OUT
21 TSD
22 TBCK
23 RWS
SEL PLL1
24 RSTOUT B
2~4,27~30
NC
76
RSD
33
SEL PLL0
37 RBCK
SER IN
41,51 AGND
42 VCM
43 VREFP
44 VCCAA
45,46 AOR+, AOR-
47,48 AOL-, AOL+
49 MIC1
50 MIC2
CIRCUIT DESCRIPTION
I/O
I Ground.
I Supply voltage for 5.0v.
I Clock for programming to access internal registers.
I/O Unused.
I/O Servo reverse or control pin.
I/O Servo LD ON or control pin.
I/O Unused.
I/O Servo CCW/Close or control pin.
I/O Unused.
I/O Servo XLAT or control pin/VFD DO.
I/O Servo BRKM/Sense or control pin/VFD DI.
I/O Servo Mute/Open or control pin/VFD CLK.
I/O Servo SQS0 or control pin.
I/O Unused.
I/O Unused.
I/O Unused.
I/O Serial interrupt/CD Mute or control pin.
I/O Unused.
I/O Unused.
I/O Data for programming to access internal registers.
I Strobe for programming to access internal registers.
O Dual purpose pin. DCLK is the MPEG decoder clock.
I EXT CLK is the external clock EXT CLK is an input during bypass PLL mode.
I Video reset (active low).
O Audio mute.
I Audio master clock.
I Dual purpose pin. TWS is the transmit audio frame sync.
O SPLL OUT is the select PLL output.
I Transmit audio data input.
I Transmit audio bit clock.
O Dual purpose pin. RWS is the receive audio frame sync.
Pins SEL PLL (1,0) select the PLL clock frequency for the DCLK output.
SEL PLL1 SEL PLL0
I 0 0
0 1
1 0
1 1
O Reset output (active low).
- Unused.
O Dual purpose pin. RSD is the receive audio data input.
I SEL PLL0 along with SEL PLL1 select the PLL clock frequency for the DCLK output.
O Dual purpose pin. RBCK is the receive audio bit clock.
I SER IN is the serial input DSC mode.
I Audio analog ground.
I ADC common mode reference (CMR) buffer output.
I DAC and ADC maximum reference.
I Analog VCC(5V).
O Right channel output.
O Left channel output.
I Microphone input 1.
I Microphone input 2.
RXD-V252/V252-H
Function
DCLK
Bypass PLL (input mode)
27MHz (output mode)
32.4MHz (output mode)
40.5MHz (output mode)
5