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| PartNumber | WT32-A-AI3 | WT32-A-AI3C | WT32-A-AI4 |
| Description | RF TXRX MOD BLUETOOTH CHIP ANT | RF TXRX MOD BLUETOOTH CHIP ANT | |
| Manufacturer | Silicon Labs | - | Silicon Labs |
| Product Category | RF Transceiver Modules | - | RF Transceiver Modules |
| Series | WT32 | - | WT32 |
| Packaging | Cut Strip | - | Digi-ReelR |
| Mounting Style | PCB | - | PCB |
| Package Case | Module | - | Module |
| Frequency | 2.4GHz | - | 2.4GHz |
| Operating Temperature | -30°C ~ 85°C | - | -30°C ~ 85°C |
| Mounting Type | Surface Mount | - | Surface Mount |
| Sensitivity | -86dBm | - | -86dBm |
| Voltage Supply | 1.8 V ~ 3.6 V | - | 1.8 V ~ 3.6 V |
| Memory Size | - | - | - |
| Protocol | Bluetooth v2.1 + EDR, Class 2 | - | Bluetooth v2.1 + EDR, Class 2 |
| Data Rate | 3Mbps | - | 3Mbps |
| Serial Interfaces | I2S, PIO, SPI, UART, USB | - | I2S, PIO, SPI, UART, USB |
| Class | Class 2 | - | Class 2 |
| Power Output | 7dbm | - | 7dbm |
| Output Power | 5 dBm | - | 5 dBm |
| Current Receiving | 4.5mA | - | 4.5mA |
| RF Family Standard | Bluetooth | - | Bluetooth |
| Modulation | DQPSK, GFSK | - | DQPSK, GFSK |
| Current Transmitting | 4.5mA | - | 4.5mA |
| Antenna Type | Integrated, Chip | - | Integrated, Chip |
| Maximum Operating Temperature | + 85 C | - | + 85 C |
| Minimum Operating Temperature | - 40 C | - | - 40 C |
| Operating Supply Voltage | 3.3 V | - | 3.3 V |
| Interface Type | Serial USB | - | Serial USB |
| Dimensions | 23 mm x 16 mm x 3 mm | - | 23 mm x 16 mm x 3 mm |
| Antenna Connector Type | Chip | - | Chip |
| Version | Version 2.1 EDR | - | Version 2.1 EDR |