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MAX2140ETH

400Kbps TQFN-44-EP(7x7) Interface - Specialized ROHS

Manufacturer:

Analog Devices, Inc
Mfr.Part #:

MAX2140ETH
Datasheet:

MAX2140ETH Datasheet (PDF)
Packaging:

Tube
Series:

MAX2140
Factory Pack Quantity:

43
Technology:

Si
EDA/CAD Models:

Request Free CAD Models for MAX2140ETH

Email: [email protected]

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Tel: +852 95804164

MAX2140ETH General Description

The MAX2140 complete receiver is designed for satellite digital audio radio services (SDARS). The device includes a fully monolithic VCO and only needs a SAW at the IF and a crystal to generate the reference frequency. To form a complete SDARS radio, the MAX2140 requires only a low-noise amplifier (LNA), which can be controlled by a baseband controller. The small number of external components needed makes the MAX2140-based platform the lowest cost and the smallest solution for SDARS. The receiver includes a self-contained RF AGC loop and baseband-controlled IF AGC loop, effectively providing a total dynamic range of over 92dB. Channel selectivity is ensured by the SAW filter and by on-chip monolithic lowpass filters. The fractional-N PLL allows a very small frequency step, making possible the implementation of an AFC loop. Additionally, the reference is provided by an external XTAL and on-chip oscillator. A reference buffer output is also provided. A 2-wire interface (I2C bus compatible) programs the circuit for a wide variety of conditions, providing features such as:

Programmable gains
Lowpass filters tuning
Individual functional block shutdown

The MAX2140 minimizes the requirement on the baseband controller. No compensation or calibration procedures are required. The device is available in a 7mm x 7mm 44-pin thin QFN package.

Key Features

Integrated Receiver, Requires Only One SAW Filter
Self-Contained RF AGC Loop
Differential I/Q Interface
Complete Integrated Frequency Generation
Bias Supply for External LNAs
Overcurrent Protection
Low-Power Standby Mode
Very Small 44-Pin Thin QFN Package

Application

2.4GHz ISM Radios
Satellite Digital Audio Radio Services (SDARS)

Specifications

Product Category:	RF Receiver	Packaging:	Tube
Product Type:	RF Receiver	Series:	MAX2140
Factory Pack Quantity:	43	Subcategory:	Wireless & RF Integrated Circuits
Technology:	Si	Part # Aliases:	MAX2140