Oki Electric Industry MSM7582
the MSM7582 is different from the MSM7582B in the ramp response time for burst rise-up and burst fall-down of I, Q modulated outputs, as shown in the table below. (Refer to Fig, 1-1 for the MSM7582 and Fig, 1-2 for the MSM7582B) MSM7582 Ramp Rise-up Ramp Fall-down 1.75 symbols 2.75 symbols MSM7582B 2 symbols 2 symbols The TXCO burst position output timing discribed before, is different, according to this table.| Part No. | MSM7582 |
|---|---|
| Datasheet | MSM7582 Download |
| Manufacturer | Oki Electric Industry |
| Description | pie/4 Shift QPSK MODEM |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The MSM7582/7582B are CMOS ICs for the p/4 shift QPSK modem developed for the digital cordless telephone systems. The devices are designed for Personal and Cell station applications, the MSM7582B is the improved MSM7582 in modulator burst rise-up and fall-down characteristics.FEATURES
● Single Power Supply (VDD: 2.7 V to ␣ 3.6 V) (Modulator Block)● Built-in Root Nyquist Filter for Baseband Limiting (50% Roll-off)
● Ramp Bit for Burst Signal Rise-up: MSM7582/1.75 symbols MSM7582B/2.0 symbols
● Ramp Bit for Burst Signal Fall-down: MSM7582/2.75 symbols MSM7582B/2.0 symbols
● Built-in D/A converters for Analog Output of Quadrature Signal I/Q Components and Power Envelope Output I2 + Q2
● Differential I/Q Analog output format
● I/Q Output DC Offset / Gain Adjustable (Demodulator Block)
● Full Digital System, p/4 shift QPSK Demodulation
● Input IF signal Frequency Selectable: 1.2/10.7/10.75/10.8 MHz
● Built-in Clock Recovery: 4 Circuits useful for Cell station (Common)...
