RXD-M65V-H/M65V-N
12
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Pin Description
1
X IN
I
Crystal resonator connection.
2
CE
I
Chip enable.
3
DI
I
Input serial data.
4
CL
I
Used as the synchronization clock when serial data is input to the DI(pin 3), or
when serial data is output DO(pin 5).
5
DO
O
Outputs serial data.
6
B01
• Dedicated output pins.
7
B02
O
• The output states are determined by B01 to B04 in the serial data.
8
B03
"Data" = 0 : Open "Data" = 1 : Low
9
B04
• These pins go to the open state after the power-on reset.
Pins used for both input and output.
10,12
I01, I02
I/O
The input or output state is determined by bits I0C1and I0C2 in the serial data.
Data = 0 : Open, Data = 1: Low
11
IF IN
I
IF count input.
13
AM IN
I
Local oscillator signal input.
14
FM IN
I
Local oscillator signal input.
15
VDD
-
Power supply.
16
PD
O
PLL charge pump output.
17, 18
AIN
I
The MOS transistor used for the PLL active low-pass filter.
AOUT
O
19
VSS
-
Ground.
20
X OUT
O
Crystal resonator connection.
6-5 PLL Frequency Synthesizer LSI : LC72131M(Tuner Assy IC2)
Pin No.
Pin Name
I/O
Pin Description
1
VREF
-
Reference voltage.
2
GND
-
Ground pin.
3
BINR
I
PB B deck right channel input.
4
AINR
I
PB A deck right channel input.
5
PBNFR
-
PB EQ. feed back.
6
PBEQR
O
Equalizer right channel output (70u).
7
EQOR
O
Equalizer right channel output (120u).
8
TAIR
I
Tape right channel input.
9
PBOOR
O
PB right channel output.
10
MAOUT
O
MS amplifier output (unused).
11
MAI
I
MS amplifier input (unused).
12
IREF
I
Equalizer reference current input.
13
RECIR
I
Rec equalizer right channel input.
14
RIP
O
NAB output.
15
RECOR
O
Rec equalizer right channel output.
16
RECOL
O
Rec equalizer left channel output.
17
VCC
-
Power supply.
18
RECIL
I
Rec equalizer left channel input.
19
MUTE
I
Mode control input.
20
A120/70
I
Mode control input (connected to GND).
21
A/B
I
Mode control input.
22
B 1/11
I
Mode control input (connected to GND).
23
PBOL
O
PB left channel output.
24
TAIL
I
Tape left channel input.
25
EQOL
O
Equalizer left channel output (120u).
26
PBEQL
O
Equalizer left channel output (70u).
27
PBNFL
-
PB EQ. feed back.
28
AINL
I
PB A deck left channel input.
29
BINL
I
PB B deck left channel input.
30
RECRET
-
Rec return.
6-4 PB/REC Equalizer System IC : HA12230NT (X28, IC1)