Semiconductor Data - HYT TM-610 Service Manual

Semiconductor Data

1. Positive Voltage Regulator: TA7805F (POWER unit IC602) and TA7808S (POWER unit 601).
2. EEPROM: AT24C256N10SI2.7 (CPU unit IC501)
2-1 Pin Function
Pin No. Name
1～3 A0～A2
4 GND
5 SDA
6 SCL
7 TEST
8 VCC
3. Audio Processor: AK2346 (AFPwr Unit IC404)
3-1 Pin Function
Pin No. Name
1 AGNDIN
2 AGND
3 TxIN
4 TxINO
5 LIMLV
6 EXTLIMIN
7 MOD
8 VSS
9 TCLK
10 TDATA
11 DI/O
12 RDF/FC
13 SCLK
14 DIR
15 XOUT
16 XIN
17 VDD
18 EXPOUT
19 RxAFIN
20 RxAF
21 RxLPFO
22 RxINO
23 RxIN
24 TEST
I/O Function
I Address input
GND
I/O Serial data
Serial clock input
Test
+5V.
I/O Function
I Analog ground input
O Analog ground output
I Tx audio signal input
O TxA1 feedback output
I Limit level tuning
I External signal input pin for pre-limiter circuit.
O Modulated Tx signal output
GND.
O Clock output pin for MSK transmission data.
I MSK transmission data input
Delay data is latched with the TCLK rising edge.
I/O Serial data input and output
Memory setting data during inputting; MSK receiving signal during outputting
O MSK signal output of receiving flag and frame detection signal
I I/O clock input of serial data
I Serial data I/O control
I Crystal oscillator input
I/O Crystal oscillator input and output
Positive power supply
O Output signal after audio processing
I Rx audio signal input
O Rx audio signal output
O Rx LPF output
O RxA1 feedback output
I Demodulated Rx signal input
I Test register control input
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TM-610 Service Manual