MAX2420/MAX2421/MAX2422/MAX2460/MAX2463 900MHz Image-Reject Transceivers

PublishTime：2021-06-21

●The MAX2420/MAX2421/MAX2422/MAX2460/MAX2463 are highly integrated front-end ICs that provide the lowest cost solution for cordless phones and ISM-band radios operating in the 900MHz band. All devices incorporate transmit and receive image-reject mixers to reduce filter cost. They operate with a +2.7V to +4.8V power supply, allowing direct connection to a three-cell battery stack.
The receive path incorporates an adjustable-gain LNA and an image-reject downconverter with 35dB image suppression. These features yield excellent combined downconverter noise figure (4dB) and high linearity with an input third-order intercept point (IP3) of up to +2dBm. The transmitter consists of a variable-gain IF amplifier with more than 35dB control range, an image-reject upconverter with 35dB image rejection, and a poweramplifier (PA) predriver that produces up to +2dBm (in some applications serving as the final power stage).
All devices include an on-chip local oscillator (LO), requiring only an external varactor-tuned LC tank for operation. The integrated divide-by-64/65 dual-modulus prescaler can also be set to a direct mode, in which it acts as an LO buffer amplifier. Four separate powerdown in puts can be used for system power management, including a 0.5μA shutdown mode. These parts are compatible with commonly used modulation schemes such as FSK, BPSK, and QPSK, as well as freque ncy hopping and direct sequence spread-spectrum systems. All devices come in a 28-pin SSOP package.
For applications using direct VCO or BPSK transmit modulation, as well as receive image rejection, consult the MAX2424/MAX2426 data sheet. For receive-only devices, refer to the MAX2440/MAX2441 /MAX2442 data sheet.
●Features
■Receive/Transmit Mixers with 35dB Image Rejection
■Adjustable-Gain LNA
■Up to +2dBm Combined Receiver Input IP3
■4dB Combined Receiver Noise Figure
■>35dB of Transmit Power Control Range
■PA Predriver Provides up to +2dBm
■Low Current Consumption: 23mA Receive
▲26mA Transmit
▲9.5mA Oscillator
■0.5μA Shutdown Mode
■Operates from Single +2.7V to +4.8V Supply

Brand of Product：	Maxim
Part#：	MAX2420 、 MAX2421 、 MAX2422 、 MAX2460 、 MAX2463 、 MAX2420EAI 、 MAX2421EAI 、 MAX2422EAI 、 MAX2460EAI 、 MAX2463EAI 、 MAX242_EAI 、 MAX246_EAI More Part#
Product Category：	Image-Reject Transceivers 、 highly integrated front-end ICs 、 EV kit More
Application：	[ Cordless Phones ][ Spread-Spectrum Communications ][ Wireless Telemetry ][ Two-Way Paging ][ Wireless Networks ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	SSOP
Language：	English Chinese Chinese and English Japanese
Date of Creation：	8/03
Version Number：	Rev 5
Data Encoding：	19-1234
Data Size：	242 KB

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