MT88E45B Просмотр технического описания (PDF) - Zarlink Semiconductor Inc

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MT88E45B

4-Wire Calling Number Identification Circuit 2 (4-Wire CNIC2)

Zarlink Semiconductor Inc 

Data Sheet

MT88E45B

AC Electrical Characteristics† - 3-Wire FSK Data Interface Timing (Mode 1)

Characteristics

Sym

Min Max Units

1

Frequency

2

DCLK

Duty cycle

fDCLK1

1

30

70

3

Rise time

tR1

100

4

DCLK

DCLK low set up before DR

tDDS

500

5

DR/STD DCLK low hold time after DR

tDDH

500

† AC Electrical Characteristics are over recommended operating conditions unless otherwise stated.

MHz

%

ns

ns

ns

Notes

AC Electrical Characteristics - Timing Parameter Measurement Voltage Levels

Characteristics

Sym

Level

Units

Notes

1 CMOS Threshold Voltage

2 Rise/Fall Threshold Voltage High

3 Rise/Fall Threshold Voltage Low

VCT

VHM

VLM

0.5*VDD

V

0.7*VDD

V

0.3*VDD

V

19

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