JVC KD-LX300 Service Manual page 5

KD-LX300/KD-LX100
TC9490FA (IC521) : DSP
1. Pin layout & Block diagram
DVss3 49
RO 50
DVDD3 51
LPF
DVR 52
LO 53
DVss3 54
ZDET 55
Vss5 56
BUS0 57
BUS1 58
BUS2 59
BUS3 60
BUCK 61
Micro-
/CCE 62
controller
interface
/RST 63
VDD5 64
2. Pin function (1/2)
Pin No. Symbol
1 BCK
2 LRCK
3 AOUT
4 DOUT
5 IPF
6 VDD3
7 Vss3
8 SBOK
9 CLCK
10 DATA
11 SFSY
12 SBSY
13 /HSO
1-24
Clock
generator
1-bit
DAC
Address
circuit
16 k
RAM
Audio output
Digital output
circuit
I/O Function
O Bit clock output terminal
O L/R channel clock output terminal
O Audio data output terminal
O Digital data output terminal
O Correction flag output terminal
- Digital 3.3V power supply voltage terminal
- Digital GND terminal
O Subcode Q data CRCC result output terminal
O Subcode P-W data read clock I/O terminal
O Subcode P-W data output terminal
O Playback frame sync signal output terminal
O Subcode block sync signal output terminal
O Playback speed mode output terminal
PWM
Servo control
ROM
Digital equalizer
automatic
RAM
adjustment circuit
CLV servo
Sync signal
protection
EFM
Sub code
decoder
32 TEZI
31 TEI
D/A
30 SBAD
29 FEI
A/D
28 RFRP
27 RFZI
26 RFCT
25 AVDD3
24 RFI
Data
slicer
23 SLCO
22 AVss3
VCO
21 VCOF
20 PVREF
19 LPFO
PLL
TMAX
18 LPFN
17 TMAX