| PartNumber | AS3977B-BQFM | AS3977B-BQFS | AS3977-BQFT |
| Description | RF Transmitter Mutli-Ch FSK Trans 300 to 928MHz | RF Transmitter | IC RF TRANSMITTER FSK 16-QFN |
| Manufacturer | ams | ams | - |
| Product Category | RF Transmitter | RF Transmitter | - |
| RoHS | Y | Y | - |
| Type | FSK Transmitter | FSK Transmitter | - |
| Operating Frequency | 300 MHz to 928 MHz | - | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Package / Case | QFN-16 | QFN-16 | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Packaging | Reel | Tray | - |
| Supply Voltage Max | 3.6 V | - | - |
| Supply Voltage Min | 2 V | - | - |
| Series | AS3977B-BQFM | - | - |
| Brand | ams | ams | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Product Type | RF Transmitter | RF Transmitter | - |
| Factory Pack Quantity | 500 | 490 | - |
| Subcategory | Wireless & RF Integrated Circuits | Wireless & RF Integrated Circuits | - |
| Unit Weight | 0.002014 oz | 0.002014 oz | - |