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CML Microcircuits
COMMUNICATION SEMICONDUCTORS
CMX971
Quadrature Modulator
D/971/4 February 2015
Features
20 – 1000MHz RF Output 0dBm Output 25MHz I/Q Bandwidth Serial Bus or Direct Control Operation Low Power 3.0V – 3.6V Operation Small 16-lead VQFN Package
Provisional Issue
Applications
Wireless Data Terminals HF/VHF and UHF Mobile Radio Avionics Radio Systems
TXIN
TXQP
TXQN CBUSOFFN
TXIP RFOUT RFGND
VCC
Divide by 2 or 4
CBUS logic
VSS
CSN/ FREQ2
RDATA/ DIVSET
SCLK/ RESETN
LO LOGND CDATA/ VDD FREQ1
1 Brief Description
The CMX971 is a high performance quadrature modulator featuring a wide operating frequency range and attractive power consumption. Control of the CMX971 may be either by serial bus or by direct control (with reduced functionality).