HD31874 RF Amplifier
Module
HD31874
| FREQUENCY RANGE1,200–1,600 MHz | OUTPUT POWER40 W typical Psat |
| GAIN45 dB minimum | SUPPLY VOLTAGE28 – 30 VDC |
| CONFIGURATIONModule | CATEGORYLow Frequency Module |
HD31874 electrical specifications
Source: HD31874 V1.2.pdf. Refer to the complete datasheet for all test conditions, optional ratings and protection limits.
| Parameter | Specification | Conditions / notes |
|---|---|---|
| Operating Frequency Range | 1200 – 1600 MHz | |
| Power Output @ Psat | 40 W typical | CW |
| Power Output @ P1 dB | 30 W minimum | CW |
| Power Gain | 45 dB minimum | 0 dBm or less for rated Pout |
| Power Gain Flatness | 2.0 dB p-p maximum | Constant input power |
| Input Return Loss | -10 dB maximum | Relative to 50 Ohm |
| 2-Tone Intermodulation (IMD) | -30 dBc typical | 37 dBm/Tone, A = 1 MHz |
| Harmonics | -20 dBc typical | At rated Pout |
| Noise Figure | 10 dB maximum | |
| Operating Voltage | 28 – 30 VDC | |
| Current Consumption | 7 A maximum | At rated P1 dB |
HD31874 control and monitoring
| Pin | Function | Description |
|---|---|---|
| 1 | n/c | n/c |
| 2 | N/c | N/c |
| 5 | SHUTDOWN | Enable = TTL High or Open; Disable = TTL Low or Short |
| 6,7 | VDD | 28 VDC |
| 8,9 | GND | Ground |
Confirm connector orientation and optional functions against the complete model-specific documentation before wiring.
Operating and storage conditions
| Parameter | Specification | Conditions / notes |
|---|---|---|
| Operating Case Temperature | -20 to +75 °C | |
| Relative Humidity | up to 95% | Non-condensing |
Mechanical specifications and cooling
| Parameter | Specification | Conditions / notes |
|---|---|---|
| Dimensions | 188 × 91.4 × 27 mm | Excluding connectors |
| RF Connectors In/Out | SMA female | |
| DC Power / Interface Connector | 9-Pin D-Sub |
Use the original outline drawing for mounting-hole positions, connector clearances and ordered options.
HD31874 documentation
Download HD31874 V1.2.pdf for the complete specifications, test conditions, drawings and available options.
About HD31874
HD31874 is listed for 1,200–1,600 MHz operation.
Output: 40 W typical Psat. Gain: 45 dB minimum. P1dB: 30 W minimum. Preserve the rating definitions and conditions in the complete datasheet.
Supply: 28 – 30 VDC. Confirm cooling and installation requirements in the datasheet.
See the model-specific interface table above. Optional functions must be confirmed for the ordered unit.
Dimensions: 188 × 91.4 × 27 mm. Review the mechanical table and original outline drawing before planning mounting and connector clearances.
Protection ratings are subject to the datasheet conditions and time limits. They do not imply unlimited operation under overload or mismatch.