| Pin | Name | Description |
|---|
| 1 | Vcc | Positive Supply Voltage |
| 9 | A | Display Segment A |
| 9 | B | Display Segment B |
| 9 | C | Display Segment C |
| 9 | D | Display Segment D |
| 9 | E | Display Segment E |
| 9 | F | Display Segment F |
| 9 | G | Display Segment G |
| 18 | GND | Ground |
| 2 | RO | Referency Oscillator Output |
| 2 | RI | Referency Oscillator Input |
| 18 | GND | Ground |
| 9 | F in | VCO Frequency Input |
| 1 | Vcc | Positive Supply Voltage |
| 19 | AO | Loop filter Amplifier Output |
| 18 | AI | Loop filter Amplifier Input |
| 5 | PD | Phase Detector Output |
| 4 | LD | Loop Detect - Unlocked=LOW Locked=HIGH |
| 9 | T/R | Transmit=LOW Receive=HIGH |
| 18 | CH19 | Channel 19 |
| 18 | CH19 | Channel 19 |
| 18 | DOWN | Channel DOWN |
| 18 | UP | Channel UP |
| 18 | GND | Ground |