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The RF2423 is a monolithic integrated transmitter IC apable of universal direct modulation for UHF AM, PM, rcompound carriers. The transmitter may be used tand-alone for applications requiring not more than 00mW output power, or may be used to drive a final ower amplifier. The maximum output level is 100mW, nd is adjustable over a 25dB range by a single positive oltage. This low-cost IC implements differential amplifiers or the modulation inputs, 90 degree carrier phase hift network, carrier limiting amplifiers, two matched doubly- alanced mixers, variable gain summing amplifier for evel control, and 100mW linear (class AB) output amplifier.
RF2423 Maximum Ratings
Parameter
Rating
Unit
Supply Voltage
-0.5 to +7.5
VDC
Power Down Voltage (VPD)
VDD+0.4
VDC
Input LO and RF Levels
+6
dBm
Operating Ambient Temperature
-40 to +85
Storage Temperature
-40 to +150
RF2423 Features
• Single 5V Power Supply • 100mW Output Power Into 50 • 25dB Gain Control Range • Excellent Phase & Amplitude Balance • Digitally Controlled Stand-By Mode • 800MHz to 1000MHz Operation
RF2423 Typical Application
• Digital and Analog Communication Systems • Spread-Spectrum Communication Systems • Portable Battery-Powered Equipment • GMSK, QPSK, DQPSK, QAM Modulation • AM, SSB, DSB Modulation