Kenwood TH-D72A, Руководство по обслуживанию

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TH-D72A/D72E
15
SEMICONDUCTOR DATA
Pin No. Port Name I/O Function
69 P21 I Pull down
70 P20 I Pull down
71~91 NC - Not used
92 P102 O Pull down
93 NC - Not used
94 AVSS - GND
95 PKS_IN O TNC TX/RX output H: TX, L: RX
96 VREF - VREF (GND)
97 AVCC - VCC (analog 3.3V)
98 NC - Not used
99 SRX O RXD (for TNC ASIC)
100 SCLK I Clock (for TNC ASIC)
Electrical Volume IC: AK2330
(TX-RX (Control) unit (A/3) IC721)
Pin No. Pin Name Function
1 Vin7 Band B TCXO control input
2 Vin0 TX deviation adjustment input
3 Vout0 TX deviation adjustment output for VCO
4 Vout1 TX deviation adjustment output for TCXO
Pin No. Pin Name Function
5 Vin1 TX deviation adjustment input
6 RSTN Reset
7 CSN Chip select
8 SCLK Clock
9 SDATA Data
10 DVdd Vdd (3.3V Digital)
11 Vss GND
12 Avdd Vdd (3.3V Analog)
13 Vref Reference voltage input
14 Vin2 Band A RX signal input
15 Vout2 Band A RX signal output
16 Vout3 Band B RX signal output
17 Vin3 Band B RX signal input
18 Vin4
BPF and APC adjustment voltage input for
band B
19 Vout4
BPF and APC adjustment voltage output
for band B
20 Vout5 BPF adjustment voltage output for band A
21 Vin5 BPF adjustment voltage input for band A
22 Vin6 Band A TCXO control input
23 Vout6 Band A TCXO control output
24 Vout7 Band B TCXO control output