MAX2424/MAX2426 900MHz Image-Reject Receivers with Transmit Mixer

PublishTime：2021-06-21

●The MAX2424/MAX2426 highly integrated front-end ICs provide the lowest cost solution for cordless and ISM-band radios operating in the 900MHz band. Both devices in corporate a receive image-reject mixer (to reduce filter cost) as well as a versatile transmit mixer. The devices operate from a +2.7V to +4.8V single power supply, allowing direct connection to a 3-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 in put third-order intercept point (IIP3) of up to +2dBm. The transmitter consists of a double-balanced mixer and a power amplifier (PA) predriver that produces up to OdBm (in some applications serving as the final power stage). It can be used in a variety of configurations, including BPSK modulation, direct VCO modulation, and transmitter upconversion. For devices featuring transmit as well as receive image rejection, refer to the MAX2420/MAX2421/MAX2422/MAX2460/MAX2463 data sheet.
The MAX2424/MAX2426 have an on-chip local oscillator (LO), requiring only an external varactor-tuned LC tank for operation. The integrated divide-by-64/65 dual-mod-ulus 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 manage-ment, including a 0.5μA shutdown mode.
The MAX2424/MAX2426 come in a 28-pin SSOP package.
●Features
■Receive Mixer with 35dB Image Rejection
■Adjustable-Gain LNA
■Up to +2dBm Combined Receiver Input IP3
■4dB Combined Receiver Noise Figure
■Optimized for Common Receiver IF Frequencies:
▲10.7MHz (MAX2424)
▲70MHz (MAX2426)
■PA Predriver Provides up to 0dBm
■Low Current Consumption: 23mA Receive
▲20mA Transmit
▲9.5mA Oscillator
■0.5μA Shutdown Mode
■Operates from Single +2.7V to +4.8V Supply

Brand of Product：	Maxim
Part#：	MAX2424 、 MAX2426 、 MAX2424EAI 、 MAX2426EAI More Part#
Product Category：	Image-Reject Receivers 、 highly integrated front-end ICs 、 EV kit More
Application：	[ Cordless Phones ][ Wireless Telemetry ][ Wireless Networks ][ Spread-Spectrum Communications ][ Two-Way Paging ] 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：	12/00
Version Number：	Rev 3
Data Encoding：	19-1350
Data Size：	286 KB

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