Block Diagram
The following is the block diagram of the evaluation board:
The interconnections of all major components, switches, connectors, LED’s and other important parts of the board are presented here.
J120 |
| J121 |
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| P1 |
| USB |
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| DC Power | ||
RS232 Connector |
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Connector |
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| Connector | |||
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DATA RS232 |
| USB DATA |
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| Fuse F1 |
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Level Shifter |
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| DATA MONITORING |
| 3.8 VDC | Power Supply | ||
U123 |
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| Direct | |
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| S8 | Uin: 6 to 16.5 VDC | |
DATA TTL |
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| SB9600 | 3.8VDC | Uout : 3.8 VDC |
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| Data Pins |
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| RED LED pin 6 |
| S1 |
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Registration | GREEN LED pin 7 | Ignition pin 14 Ignition | Jumper P60 | |||
Status |
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| S6 MOD | S3 |
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| MOD pin13 |
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MMCX Antenna |
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| PTT | Fuse F2 | |
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Connector |
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| Opt Sel_1, pin18 |
| S4 | |
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| Power SW | ||
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| J1 |
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| Opt Sel_1, pin17 |
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| S5 |
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iO1500R | 30 Pin |
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| 3.8VDC | ||
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| Mode select | ||||
ZIF | Audio Out pin 19 |
| P61 | |||
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| Connector |
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| Audio | |
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| Amplifier | Speaker |
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| S9 |
| Connector |
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| Audio Volume |
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| Attenuation |
| J80 | |
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| Mic | Headset |
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| Mic In pin 21 | Amplifier | J122 | |
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| Mic In |
Page 6 of 8
