JVC MX-DVA9 Service Manual page 66

MX-DVA9/MX-DVA9R
MM3023DN-X (IC1, IC102) : Switching regulator
1.Terminal layout
GND 1
V 2
DD
3
V
OUT
3.Pin function
Pin No. Symbol
1 GND
2 VDD
3 VOUT
4 NC
5 CE
BR93LC66F-X or AK93C65AF-X (IC403) : EEPROM
1.Terminal layout
NC 1 8 NC
VCC 2 7 GND
CS 3 6 DO
SK 4 5 DI
2.Block diagram
INSTRUCTION
DI
REGISTER
CS
SK
PE
1-66
1.Block diagram
V
2
DD
4 CE
NC
5
CE 5
I/O
- Connect to GND
- Power supply
O Regulator output
- No connect
I Output voltage on/off control
2.Pin Functions
Symbol
VCC
GND
CS
SK
DI
DO
REGISTER
INSTRUCTION
DECODE,
CONTROL
AND
CLOCK
GENERATION
BUFFERS
Vref
10k
Function
I/O
-
Power supply
-
Connect to GND
I
Chip select input
I
Serial clock input
I
Start bit,OP-code,address,serial data input
O
Serial data output,
Internal state display output of READY/BUSY
DATA
16
R/W AMPS
AND
AUTO ERASE
ADD. DECODER
VPP SW
VREF
GENERATOR
3
V
Current Limit
1 GND
Function
DO
16
EEPROM
4096bit
256 x 16
VPP
OUT