MAX2821 |
RFQ for MAX2821 Required Field |
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| Technical/Catalog Information | MAX2821AETM+ |
| Vendor | Maxim Integrated Products |
| Category | RF and RFID |
| Frequency | 2.4GHz |
| Data Rate - Maximum | 11Mbps |
| Modulation or Protocol | 802.11 b |
| Applications | ISM, WLAN |
| Power - Output | 3dBm |
| Sensitivity | -97dBm |
| Voltage - Supply | 2.7 V ~ 3.6 V |
| Current - Receiving | 110mA |
| Current - Transmitting | 90mA |
| Package / Case | 48-TQFN Exposed Pad |
| Operating Temperature | -40°C ~ 85°C |
| Data Interface | PCB, Surface Mount |
| Antenna Connector | PCB, Surface Mount |
| Packaging | Tube |
| Memory Size | - |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | MAX2821AETM+ MAX2821AETM+ |
| Product | Manufacturers | Pack | D/C |
| MAX2821 | - | QFN | 04 |
The MAX2820/MAX2821 single-chip zero-IF transceiversare designed for the 802.11b (11Mbps) applicationsoperating in the 2.4GHz to 2.5GHz ISM band. The trans-ceivers are nearlyidentical, except the MAX2821 pro-vides a low-power shutdown mode and an analogvoltage reference output feature and the MAX2820 doesnot. The transceivers include all the circuitry required toimplement an 802.11b RF-to-baseband transceiver solu-tion, providing a fully integrated receive path, transmitpath, VCO, frequency synthesis, andbaseband/controlinterface. Only a PA, RF switch, RF BPF, and a smallnumber of passive components are needed to form thecomplete radio front-end solution.
The ICs eliminate the need for external IF and base-band filters by utilizing a direct-conversion radio archi-tecture and monolithic baseband filters for bothreceiver and transmitter. They are specifically opti-mized for 802.11b (11Mbps CCK) applications. Thebaseband filtering and RX and TX signal paths supportthe CCK modulation scheme for BER = 10-5 at therequired sensitivity levels.
The devices are suitable for the full range of 802.11bdata rates (1Mbps, 2Mbps, 5.5Mbps, and 11Mbps) andalso the higher-rate 22Mbps PBCCTMstandard. TheMAX2820/MAX2821 are available in the very small 7mm×7mm 48-lead QFN package.
Typical Application |
Features |
| 802.11b 11Mbps WLAN802.11b+22Mbps PBCCHigh-Data-Rate WLAN802.11a + b Dual-Band WLAN2.4GHz ISM Band Radios | . 2.4GHz to 2.5GHz ISM Band Operation. 802.11b (11Mbps CCK and 22Mbps PBCC) PHYCompatible. Complete RF-to-Baseband Transceiver Direct-Conversion Upconverters andDownconvertersMonolithic Low-Phase-Noise VCOIntegrated Baseband Lowpass FiltersIntegrated PLL with 3-Wire Serial InterfaceDigital Bias Control for External PATransmit Power Control (Range > 25dB)Receive Baseband AGC (Range > 65dB)Complete Baseband InterfaceDigital TX/RX Mode ControlAnalog Receive Level Detection.-97dBm RX Sensitivity at 1Mbps.-87dBm RX Sensitivity at 11Mbps.+2dBm Transmit Power (11Mbps CCK). Single +2.7V to +3.6V Supply. Low-Current Shutdown Mode (MAX2821 only).Very Small 48-Pin QFN Package (s) |
