Kenwood RXD-M35 Service Manual page 11

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6-3 4 channel BTL driver : AN4801SB-E1(IC203)
Pin No. Pin Name
1 IN2
2 PC2
3 IN1
4 PC1
5 RETO
6 N.C.1
7 N.C.2
8 PGND1
9 PVCC1
10 V01-
11 V01+
12 V02-
13 V02+
14 V03-
15 V03+
16 V04-
17 V04+
18 PVCC2
19 PGND2
20 STBY
21 N.C.3
22 N.C.4
23 SVCC
24 VREF
TE
L 13942296513
25 IN4
26 IN3
6-4 PLL Frequency Synthesizer LSI : LC72131M (IC102)
Pin No. Pin Name
1 X IN
2 CE
3 DI
4 CL
5 DO
6 AM (B01)
7 EMPH (B02)
8 S/M (B03)
9 FM (B04)
10 ATT (I01)
12 IF CON (I02)
11 IF IN
13 AM IN
14 FM IN
15 VDD
16 PD
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17 AIN
18 AOUT
19 VSS
.
20 X OUT
CIRCUIT DESCRIPTION
I/O
I Driver 2 input.
I Power cut input (channel 2 mute).
I Driver 1 input.
I Power cut input (connected to ground).
O Reset output.
- Unused.
- Unused.
- Ground 1for driver.
- Power supply 1 for driver.
O Driver 1 inverted output.
O Driver 1 forward output.
O Driver 2 inverted output.
O Driver 2 forward output.
O Driver 3 inverted output.
O Driver 3 forward output.
O Driver 4 inverted output.
O Driver 4 forward output.
- Power supply 2 for driver.
- Ground 2 for driver.
I Standby input.
- Unused.
- Unused.
- Power supply.
- Reference voltage input.
I Driver 4 input.
I Driver 3 input
I/O
I Crystal resonator connection.
I Chip enable.
I Input serial data.
Used as the synchronization clock when serial data is input to the DI(pin 3),
I
or when serial data is output DO(pin 5).
O Outputs serial data.
• Dedicated output pins.
O • The output states are determined by B01 to B04 in the serial data.
"Data"=0 : Open "Data"=1 : Low
• These pins go to the open state after the power-on reset.
Pins used for both input and output.
I/O The input or output state is determined by bits I0C1and I0C2 in the serial data.
Data = 0 : Open, Data = 1: Low
I IF count input.
I Local oscillator signal input.
I Local oscillator signal input.
- Power supply.
O PLL charge pump output.
I
The MOS transistor used for the PLL active low-pass filter.
O
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y
- Ground.
i
O Crystal resonator connection.
2 9
8
Description
Q Q
3 6 7 1 3 1 5
Pin Description
co
.
RXD-M35
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9
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