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| PartNumber | WT12-A-AI55C | WT12-A-AI55 | WT12-A-AI5 |
| Description | Bluetooth Modules (802.15.1) AI55 : iWRAP5.5. Bluetooth 2.1+EDR module, Class 2, iWRAP 5.0, integrated antenna | Bluetooth Modules (802.15.1) AI55 : iWRAP5.5. Bluetooth 2.1+EDR module, Class 2, iWRAP 5.0, integrated antenna | RF TXRX MOD BLUETOOTH CHIP ANT |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | SILICON LABORATORIES |
| Product Category | Bluetooth Modules (802.15.1) | Bluetooth Modules (802.15.1) | RF Transceiver Modules |
| Class | Class 2 | Class 2 | Class 2 |
| Protocol | Bluetooth 2.1 + EDR | Bluetooth 2.1 + EDR | Bluetooth v2.1 + EDR, Class 2 |
| Data Rate | 3 Mb/s | 3 Mb/s | 3Mbps |
| Operating Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 3.2 to 3.4 V |
| Output Power | 3 dBm | 3 dBm | 4 dBm |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Sensitivity | - 86 dBm | - 86 dBm | -86dBm |
| Modulation Technique | DQPSK, GFSK | DQPSK, GFSK | - |
| Interface Type | SPI, UART, USB | SPI, UART, USB | UART USB |
| Series | WT12 | WT12 | WT12 |
| Antenna | Chip | Chip | - |
| Dimensions | 25.5 mm x 14 mm x 2.4 mm | 25.5 mm x 14 mm x 2.4 mm | 26 mm x 14 mm x 2.3 mm |
| Features | 802.11 Co-Existence Interface, 6 Software Programmable IO Pins | 802.11 Co-Existence Interface, 6 Software Programmable IO Pins | - |
| Frequency | 2.4 GHz | 2.4 GHz | 2.4GHz |
| Frequency Range | 2.4 GHz to 2.4835 GHz | 2.4 GHz to 2.4835 GHz | - |
| Height | 2.4 mm | 2.4 mm | - |
| Length | 25.5 mm | 25.5 mm | - |
| Range | 30 m | 30 m | - |
| Shielding | Shielded | Shielded | - |
| Type | USB Adapter | USB Adapter | - |
| Width | 14 mm | 14 mm | - |
| Brand | Silicon Labs / Bluegiga | Silicon Labs / Bluegiga | - |
| Mounting Style | PCB | PCB | PCB |
| Antenna Connector Type | Integrated | Integrated | Integrated |
| Product Type | Bluetooth Modules | Bluetooth Modules | - |
| Factory Pack Quantity | 100 | 500 | - |
| Subcategory | Wireless & RF Modules | Wireless & RF Modules | - |
| Supply Current Receiving | 70 mA | 70 mA | - |
| Supply Current Transmitting | 70 mA | 70 mA | - |
| Version | Bluetooth 2.1 + EDR | Bluetooth 2.1 + EDR | Version 2.1 EDR |
| RoHS | - | Y | - |
| Packaging | - | Reel | Digi-ReelR |
| Package Case | - | - | Module |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Mounting Type | - | - | Surface Mount |
| Voltage Supply | - | - | 3.1 V ~ 3.6 V |
| Memory Size | - | - | 8MB Flash |
| Serial Interfaces | - | - | PIO, SPI, UART, USB |
| Power Output | - | - | 3dBm |
| Current Receiving | - | - | 70mA |
| RF Family Standard | - | - | Bluetooth |
| Modulation | - | - | DQPSK, GFSK |
| Current Transmitting | - | - | 70mA |
| Antenna Type | - | - | Integrated, Chip |