Transceiver integrates PA, Rx/Tx/antenna diversity switches.
Press Release Summary:
Achieving -75 dBm sensitivity, 62 mA receiver supply current, and 17 dBm linear transmit power, Model MAX2830 802.11 g/b RF transceiver with integrated power amplifier is suited for Wi-Fi, PDA, VoIP, and cellular handset applications. It incorporates digitally controlled crystal oscillator circuitry to implement reference oscillator function. Available in 7 x 7 mm leadless 48-pin TQFN-EP package, unit operates from 2.7-3.6 V supply and features 20 µA low-power shutdown mode.
Original Press Release:
Industry's First Ultra-Low-Power, 802.11g/b RF Transceiver to Integrate PA, Rx/Tx/Antenna Diversity Switches, and Crystal Oscillator Circuitry
The MAX2830 is the industry's first ultra-low-power, 802.11g/b RF transceiver to integrate a PA, Rx/Tx and antenna diversity switches, and a digitally controlled crystal oscillator.
The MAX2830 saves over 10mm² of board space and $0.25 of BOM cost over competing solutions.
The MAX2830 achieves these cost and board space savings by integrating Rx/Tx and antenna diversity switches.
Achieving the industry's best sensitivity (-75dBm), lowest receiver supply current (62mA), and highest linear transmit power (+17dBm), the MAX2830 is ideal for Wi-Fi, PDA, VoIP, and cellular handset applications.
SUNNYVALE, CA-August 10, 2007-Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX2830 single-chip, direct-conversion, ultra-low-power 802.11g/b RF transceiver with integrated power amplifier (PA), Rx/Tx/antenna diversity switches, and crystal oscillator circuitry. It is the industry's first transceiver to integrate Rx/Tx and antenna diversity switches, thus saving 10mm² of board space and $0.25 of BOM cost versus competing solutions. The low cost and small size of this highly integrated transceiver make the MAX2830 ideal for Wi-Fi, PDA, VoIP, and cellular handset applications.
The MAX2830 also integrates digitally controlled, crystal oscillator (DCXO) circuitry to implement the reference oscillator function, thus allowing the use of small, low-cost, low-power crystals. Competing solutions implement this same function by using higher-cost, larger, external crystal oscillators (XOs) that consume more current and increase BOM cost by $0.50.
The MAX2830 is designed using Maxim's proprietary high-performance SiGe BiCMOS process. The transceiver operates from a 2.7V to 3.6V supply, and the PA operates from 2.7V to 4.2V, which allows the MAX2830 to be powered directly from cell phone batteries. The receiver consumes 62mA of current in receive mode, while achieving a low-noise figure of 3.3dB, thus enabling best-in-class receive sensitivity of -75dBm (64QAM OFDM) without an external LNA. Additionally, the transmitter and PA deliver best-in-class linear transmit power of +17dBm (64QAM OFDM) after the switch. A 20µA low-power shutdown mode is available to further save power.
The MAX2830 is available in a small, 7mm x 7mm, leadless 48-pin TQFN-EP package. Pricing starts at $5.97 (1000-up, FOB USA). An evaluation kit is available to speed designs.
