Cmos, Adc P/4 Dqpsk Baseband Transmit Port

The AD7011 is a complete low power, CMOS, /4 DQPSK Modulator with single +5 V power supply. The part is designed to perform the baseband conversion of I and Q transmit wave- forms in accordance with the American Digital Cellular Tele- phone system (TIA IS-54). The on-chip /4 Differential Quadrature Phase Shift Keying (DQPSK) digital Modulator which includes the root raised cosine Filters generates I and Q data in response to the transmit data stream. The AD7011 also contains ramp control envelope Logic to shape the I and Q output waveforms when ramping up or down at the beginning or end of a transmit burst. Besides providing all the necessary Logic to perform /4 DQPSK modulation, the part also provides reconstruction Filters to smooth the DAC outputs, providing continuous time Analog outputs. The AD7011 generates differential Analog outputs for both the I and Q signals. As it is a necessity for all digital mobile systems to use the lowest possible power, the device has transmit and receive power-down options. The AD7011 is housed in a space efficient 24-pin SSOP (Shrink Small Outline Package). By Analog Devices, Inc.
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AD7011 Pinout, Pinouts
AD7011 pinout,Pin out
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