Part # MAX2140 datasheet

Part Manufacturer: Maxim


Part Description: MAX2140 DS

Part Details:

19-3123; Rev 3; 10/05 EVALUATION KIT Complete SDARS Receiver AVAILABLE MAX2140 General Description Features The MAX2140 complete receiver is designed for satellite Integrated Receiver, Requires Only One SAW digital audio radio services (SDARS). The device Filter includes a fully monolithic VCO and only needs a SAW atthe IF and a crystal to generate the reference frequency. Self-Contained RF AGC Loop To form a complete SDARS radio, the MAX2140 Differential I/Q Interface requires only a low-noise amplifier (LNA), which can be Complete Integrated Frequency Generation controlled by a baseband controller. The small numberof external components needed makes the MAX2140- Bias Supply for External LNAs based platform the lowest cost and the smallest solu- Overcurrent Protection tion for SDARS. The receiver includes a self-contained RF AGC loop Low-Power Standby Mode and baseband-controlled IF AGC loop, effectively pro- Very Small 44-Pin Thin QFN Package viding a total dynamic range of over 92dB. Channel selectivity is ensured by the SAW filter and byon-chip monolithic lowpass filters. Ordering Information The fractional-N PLL allows a very small frequencystep, making possible the implementation of an AFC PART TEMP RANGE PIN-PACKAGE loop. Additionally, the reference is provided by an MAX2140ETH -40°C to +85°C 44 Thin QFN-EP* external XTAL and on-chip oscillator. A reference buffer MAX2140ETH+ -40°C to +85°C 44 Thin QFN-EP* output is also provided. *EP = Exposed paddle. A 2-wire interface (I2C-bus compatible) programs the +Denotes lead-free package. circuit for a wide variety of conditions, providing fea-tures such as: ·Programmable gains Block Diagram/Pin Configuration ·Lowpass filters tuning ·Individual functional block shutdown - CA1 CA2 SDA SCL

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MAX2140.pdf Datasheet