Sanyo DC-DA3300M Service Manual page 10

IC BLOCK DIAGRAM & DESCRIPTION
IC102 LC78684NE-UHK-E (MP3 Decoder for CD Player)
CKIN
VPRFR
VCOC
VPDO
CKOUT
WOK
CNTOK
OVF
LRSY
DATACK
DATAIN
C2FIN
SFSY
PW
SBSY
SBCK
RESB
Pin
Pin Name I/O Block Description
No.
1 LRSY I CD L/R clock input.
2 ADDATA O Audio data output.
Audio IF
3 ADBCK O Audio bit clock output.
4 ADLRCK O Audio L/R clock output.
5 CF2IN I CD IF CD C2 error flag input.
6 TEST1 I TEST Test input 1(Must be connected to GND)
7 CKIN I CLOCK System clock(16.9344MHz) input.
Power
8 V S S - GND earth terminal.
supply
9 CKOUT O CLOCK Clock(384Fs) output for external DF/DAC
10 TEST2 I TEST Test input 2(Must be connected to GND)
Power
11 DVDD1 - Digital power supply pin for I/O.
supply
12 P W I CD subcode data serial input.
13 S B S Y I Subcode CD subcode block synchronized signal input.
14 SFSY I IF CD subcode flame synchronized signal input.
15 SBCK O Serial clock output for CD subcode transfer.
Power
16 AVDD - Analog(PLL) Power supply.
supply
17 VPRFR - Pin to set the oscillation range of VCO.
18 V C O C I PLL VCO control voltage input.
19 VPDO O VCO charge pump output.
20 A V S S - Analog GND earth terminal.
Power
21 DVDD2 - Power supply pin for internal logic.
supply
22 V S S - GND earth terminal.
23 MDATA0 I/O DRAM data bass 0
24 MDATA1 I/O DRAM data bass 1
25 MDATA2 I/O DRAM data bass 2
26 MDATA3 I/O Memory DRAM data bass 3
27 MDATA4 I/O IF DRAM data bass 4
28 MDATA5 I/O DRAM data bass 5
29 MDATA6 I/O DRAM data bass 6
30 MDATA7 I/O DRAM data bass 7
31 DVDD3 - Power Digital power supply pin for I/O.
32 V S S - supply GND earth terminal.
33 MDATA8 I/O DRAM data bass 8
34 MDATA9 I/O DRAM data bass 9
35 MDATA10 I/O DRAM data bass 10
36 MDATA11 I/O DRAM data bass 11
37 MDATA12 I/O DRAM data bass 12
38 MDATA13 I/O DRAM data bass 13
39 MDATA14 I/O DRAM data bass 14
40 MDATA15 I/O DRAM data bass 15
41 RASB O RAS output(L-active) for EDO-DRAM, SDRAM.
42 W E B O WE output(L-active) for EDO-DRAM, SDRAM.
CAS output(For lower byte, L-active)
Memory
43 CASLB O when use EDO-DRAM.
IF
Clock output for DRAM when use SDRAM.
CAS output(For upper byte, L-active)
44 CASUB O when use EDO-DRAM.
CAS output for SDRAM.(L-active)
OE output(L-active) when use EDO-DRAM.
45 OEB O
CS output (L-active) when use SDRAM.
46 MADRS12 O DRAM address output 12
47 MADRS11 O DRAM address output 11
48 MADRS10 O DRAM address output 10
49 MADRS9 O DRAM address output 9
50 MADRS8 O DRAM address output 8
System
Clock-gen
DRAM-I /F
VCO
+
PLL
Anti-Shock
(compression·
incompressible)
Data- I / F
CDROM
Decoder
Decoder
Pin
Pin Name I/O Block Description
No.
51 DVDD4 - Power Digital power supply pin for I/O.
52 V S S - supply GND earth terminal.
53 MADRS7 O DRAM address output 7
54 MADRS6 O DRAM address output 6
55 MADRS5 O DRAM address output 5
56 MADRS4 O DRAM address output 4
Memory
57 MADRS3 O DRAM address output 3
IF
58 MADRS2 O DRAM address output 2
59 MADRS1 O DRAM address output 1
60 MADRS0 O DRAM address output 0
61 DVDD5 - Power supply pin for internal logic.
Power
62 V S S - supply GND earth terminal.
When EDO-DRAM use. MP3 data request flag
output.(H-active)
63 STREQ I/O
/ DRAM data request flag input(CD ROM : H-active)
MP3 When SDRAM use CKE output(L-active).
Stream When EDO-DRAM use. MP3 data transfer clock input.
64 STCK I/O Input / / DRAM data transfer clock output.
output When SDRAM use DQML output(L-active).
When EDO-DRAM use. MP3 data serial input
65 STDAT I/O / DRAM data serial output.
When SDRAM use DQMH output(L-active).
MP3 flame synchronized signal(H-active)
66 FSYNC O MP3-dec / Complete detection flag of data connecting
point request(CD-DA : H-active)
When EDO-DRAM use. CRC check (CDROM data / CDDA
C D subcode data) Result output(H-active)
67 CRCF O
monitor / DRAM data output enable flag(H-active)
When SDRAM use ADRS13 output.
68 DVDD6 - Power Digital power supply pin for I/O.
69 V S S - supply GND earth terminal.
DRAM light permission input(CD-DA : H-active)
70 WOK I
DRAM data request flag input(Only when EDO-DRAM used.)
Anti
Complete detection flag of data connecting point request
shock
71 CNTOK O (CD-DA : H-active) SYNC error monitor flag (MP3 : H-active)
/MP3
DRAM data serial output(Only when EDO-DRAM used.)
input
DRAM light interrupt flag(CD-DA : H-active)
&
Emphasis output flag (MP3 : H-active)
72 OVF O output
DRAM data transfer clock output.
(Only when EDO-DRAM used.)
73 CMDOUT O Command serial data output. (Nch open drain output pin)
74 CMDIN I Command serial data input.
75 C L I Command serial clock input.
Micon
76 C E I Command enable input.(H-active)
I/F
Interrupt signal output (L-active)
77 INTB O
DRAM light interrupt flag(CD-DA : H-active)
78 RESB I System reset (L-active)
79 DATAIN I CD serial data input.
CD I/F
80 DATACK I CD bit clock input.
- 9 -
CPU- I / F
STREQ
STCK
STDAT
CRCF
MP3
FSYNC
M
U
X
ADLRCK
ADBCK
Audio- I / F
ADDATA