MAX2822
2.4GHz 802.11b Zero-IF Transceiver with Integrated PA and Tx/Rx Switch
Part Details
- 2.4GHz to 2.5GHz ISM Band Operation
- 802.11b (11Mbps CCK and 22Mbps PBCC) PHY Compatible
- Integrated +17dBm PA
- Integrated PA Power Detector
- Integrated Transmit/Receive Switch
- Complete RF-to-Baseband Transceiver
- Direct Up/Down Conversion
- Monolithic Low-Phase-Noise VCO
- Integrated Baseband Lowpass Filters
- Integrated PLL with 3-Wire Serial Interface
- Digital Bias Control for PA
- Transmit Power Control
- Receive Baseband AGC
- Complete Baseband Interface
- Digital Tx/Rx Mode Control
- -95dBm Rx Sensitivity at 1Mbps
- -85dBm Rx Sensitivity at 11Mbps
- Single +2.7V to +3.0V Supply
- 2µA Shutdown Mode
- Very Small 48-Pin QFN Package
The MAX2822 single-chip transceiver is designed for 802.11b (11Mbps) applications operating in the 2.4GHz to 2.5GHz ISM band. The transceiver includes all the circuitry required to implement an 802.11b RF-to-baseband transceiver solution, including the power amplifier, transmit/receive switch, and 50Ω matching. The fully integrated receive path, transmit path, VCO, frequency synthesis, and baseband/control interface provide all the required active RF circuitry. Only a small number of passive components are needed to form the complete radio front-end solution.
The IC eliminates the need for external IF SAW and RF image-reject filters by utilizing a direct-conversion radio architecture and monolithic baseband filters for both receiver and transmitter. It is specifically optimized for 802.11b (11Mbps CCK) and 22Mbps PBCC™ applications. The baseband filtering and Rx and Tx signal paths support the CCK modulation scheme for BER = 10-5 at the required sensitivity levels.
The transceiver is suitable for the full range of 802.11b data rates (1Mbps, 2Mbps, 5.5Mbps, and 11Mbps) as well as the higher-rate 22Mbps PBCC standard. The MAX2822 is available in the very small 7mm x 7mm 48-lead QFN or thin QFN packages. The small solution size makes it ideal for small form-factor 802.11b applications such as PDAs, SmartPhones, and embedded modules.
Applications
- 802.11b Embedded Modules
- 802.11b PC Cards, Mini-PCI Cards
- 802.11b PDAs and Smartphones
Documentation
Reliability Data 1
Technical Articles 1
Request an NDA
Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA).
Request an NDAHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Product 4 | ||
| MAX2820 | 2.4GHz 802.11b Zero-IF Transceivers | |
| MAX2821 | 2.4GHz 802.11b Zero-IF Transceivers | |
| MAX2242 | 2.4GHz to 2.5GHz Linear Power Amplifier | |
| MAX2247 | 2.4GHz SiGe Linear Power Amplifier | |
| RF Transceivers > 1GHz 2 | ||
| MAX2831 | PRODUCTION | 2.4GHz to 2.5GHz, 802.11g RF Transceivers with Integrated PA |
| MAX2830 | PRODUCTION | 2.4GHz to 2.5GHz 802.11g/b RF Transceiver with PA and Rx/Tx/Diversity Switch |
Evaluation Kits
Evaluation Kit for the MAX2822
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