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MSM7512

1200 bps Half Duplex FSK Modem – ITU-T V.23

Oki Electric Industry 

Semiconductor

ABSOLUTE MAXIMUM RATINGS

Parameter

Power Supply Voltage

Input Voltage

Storage Temperature

Symbol

VDD

VIN

TSTG

Condition

Ta = 25°C,

With respect to GND

—

MSM7512B

Rating

Unit

–0.3 to +7

V

–0.3 to VDD + 0.3

V

–55 to +150

°C

RECOMMENDED OPERATING CONDITIONS

Parameter

Power Supply Voltage

Operating Temperature

Input Clock Frequency

VDD Bypass Capacitor

Oscillation Frequency

Frequency Deviation

Temperature Characteristics

Equivalent Series Resistance

Load Capacitance

Symbol

VDD

Top

fCLK

CVDD

—

—

—

—

—

Condition

—

—

To 3.579545 MHz

VDD – GND

—

+25°C ±5°C

–40°C to +85°C

—

—

Min.

+2.7

–40

–0.1

10

—

–100

–50

—

—

Typ.

—

—

—

—

3.579545

—

—

—

16

Max. Unit

+5.5 V

+85 °C

+0.1 %

— mF

— MHz

+100 ppm

+50 ppm

50 W

— pF

ELECTRICAL CHARACTERISTICS

DC Characteristics

Parameter

Power Supply Current

Digital Input Voltage

Digital Input Leakage Current

Digital Output Voltage

Symbol

IDD

ISS

VIL

VIH

IIL

IIH

VOL

VOH

* Internally pulled-up pins

( VDD = +2.7 V to +5.5 V, Top = –40°C to +85°C)

Condition

Min. Typ. Max. Unit

Operating Mode

—

5.0

10.0 mA

Power Down Mode

—

5.0

20.0 mA

—

0

—

0.8 V

—

VI = 0 V *

VI = 5 V

IOL = 1.6 mA

IOH = –0.4 mA

2.2

—

VDD V

–80

—

10 mA

–10

—

10 mA

0

0.2

0.4 V

2.4

—

VDD V

5/12

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