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CX74036

Conexant Systems
Part Number CX74036
Manufacturer Conexant Systems
Description IS-136 Receive RF IC for TDMA and AMPS Applications
Published Oct 11, 2006
Detailed Description www.DataSheet4U.com CX74036 IS-136 Receive RF IC for TDMA and AMPS Applications Conexant’s CX74036 receive RF IC is an ...
Datasheet PDF File CX74036 PDF File

CX74036
CX74036

Overview
www.
DataSheet4U.
com CX74036 IS-136 Receive RF IC for TDMA and AMPS Applications Conexant’s CX74036 receive RF IC is an advanced, highly integrated and high performance, triple-mode, dual-band IC for IS-136 compliant cellular radio applications and is designed in an advanced 28 GHz Ft BiCMOS process.
In the 800 MHz cellular band, the CX74036 is designed to operate in both the Time Division Multiple Access (TDMA) mode and Advanced Mobile Phone System (AMPS) mode.
In the 1900 MHz Personal Communications System (PCS) band, the device operates in the TDMA mode.
The CX74036 embodies all the necessary functions for a radio receiver system except for the RF and Intermediate Frequency (IF) filters and RF Local Oscillator (LO) sources.
The device front-end section has two Low Noise Amplifier (LNA) and mixer pairs, one for the 800 MHz band and the other for the 1900 MHz band.
A common path is taken from the first IF mixer output to the demodulator output.
The CX74036 48-pin, 7x7 Land Grid Array (LGA) package pin configuration is shown in Figure 1.
A block diagram of the CX74036 is shown in Figure 2.
Features • • • • • • Front-end to baseband in one IC Inphase and Quadrature (I/Q) demodulator 3 V supply operation Low current consumption LNA gain switch with current reduction IF LO synthesizer with Voltage Controlled Oscillator (VCO) (requires external tank) • 70 dB Variable Gain Amplifier (VGA) dynamic range • Low Noise Figure (NF) and high 3rd order Input Intercept Point (IIP3) mixers Applications www.
DataSheet4U.
com • Cellular and/or PCS band phones • TDMA and/or AMPS mode phones • Portable battery powered radio equipment www.
DataSheet4U.
com VCC2_LNAH VCC2_LNAL VCC1_LNA LNA_INH LNA_INL LNA_O H LNA_O L EXT_LO 39 IF_O + 38 NC2 NC1 40 LNA_G MXIH MIXIL BAND CHIP_EN LO IH LO IL VCC_MX STANDBY IQ /IF MXO UT+ MXO UTMX2I+ 1 2 3 4 5 6 7 8 9 10 11 12 13 48 47 46 45 44 43 42 41 37 36 35 34 33 32 31 30 29 28 27 26 IF_O QQ+ II+ EXT_LO IN VCC_VCO VCO VCO + VCC_SYN LP_FIL RE...


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