MSM6882-3 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM6882-3

2400/1200 bps single chip MSK modem

Oki Electric Industry 

E2A0035-16-X0

¡ ¡ SemicondSucetormiconductor

MSM6882-3/6882-5

2400/1200 bps Single Chip MSK Modem

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Previous version: Nov. 1996

GENERAL DESCRIPTION

The MSM6882-3/6882-5 is a single chip MSK (Minimum Shift Keying) modem which is fabricated

by Oki’s low power consumption CMOS silicon gate technology.

The demodulator receives the data to be transmitted (SD) synchronized with the transmit timing

clock (ST) generated by the on-chip clock generator. The signal, which is modulated by MSK method,

is output.

The demodulator converts the received MSK signal to the received data (RD) by means of a delay

detection technique after limiting the band of the received MSK signal. This signal is input to the

digital PLL and the re-generated timing clock (RT) is output from the demodulator, synchronized

with the RD.

FEATURES

• Signal power supply:+3.6 V (MSM6882-3)

+5 V (MSM6882-5)

• On-chip SCF (Switched Capacitor Filter)

• The transmit filter can be also used as voice splatter filter.

• The receive timing re-generator has two different lock-in time performance options to be chosen

from.

• Bit rate 2400/1200 bps

• CCIR Rec. 623

• The modulation method can be selected from COS-FFSK and SIN-FFSK.

• Built-in crystal oscillation circuit.

• Package options:

22-pin plastic DIP (DIP22-P-400-2.54)

(Product name: MSM6882-3RS)

(Product name: MSM6882-5RS)

24-pin plastic SOP (SOP24-P-430-1.27-K) (Product name: MSM6882-3GS-K)

(Product name: MSM6882-5GS-K)

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