MSM7583

• Single +5 V Power Supply:  4.5 V to 5.5 V(Modulator Block)
• Built in Root Nyquist Filter for Baseband Limitting (50% Roll-off)
• Ramp Bit for Burst Signal Rise-up (Fall-down) :  2 Symbols
• Built-in D/A converters for Analog Outputs of Quadrature Signal I/Q Components andI   + Q  22  (Analog) Power Envelope Output.
• Differential I/Q Analog Output Type
• I/Q  Output, DC Offset/Amplitude Adjustable(Demodulator Block)
• Built-in Diversity-corresponding Demodulation Circuit:  2 Systems
• Full Digital p/4 Shift QPSK Demodulation System
• Input IF Signal Frequency Selectable:  1.2/10.7/10.75/10.8 MHz
• Built-in Clock Recovery:  4 Circuits
• Transmit/Receive Independent Power-down Control capability
• Built-in Precise Analog Voltage Reference
•MCU Serial Interface for Mode Setting and Built-in Test Circuit
• Test Modes: Eye Pattern/AFC Compensating Signal/Phase Detection Signal MonitoringCapability
• Transmission Speed:  384 kbps
• Low Power ConsumptionOperating Mode: 16 mA Typ./Modulator (VDD = 5.0 V)28 mA Typ./Demodulator (VDD = 5.0 V)Whole Power-downMode: 0.03mATyp. (VDD = 5.0 V)
• Package:64-pin plastic QFP (QFP64-P-1414-0.80-BK)(Product name : MSM7583GS-BK)

The MSM7583 is a CMOS IC for the p/4 shift QPSK modem developed for the digital cordlesstelephone systems.

The MSM7583, which contains one system of modulator and two systems of demodulater, isoptimized for applications for cell stations in a cordless telephone system.