ML7020 데이터 시트보기 (PDF) - Oki Electric Industry

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ML7020

1200 bps MODEM for Remote Control Systems

Oki Electric Industry 

1Semiconductor

FEDL7020-02

ML7020

AC Characteristics (Modem Section)

Parameter

Symbol

Condition

(VDD = 4.5 to 5.5 V, Ta = –40 to +85°C)

Min. Typ. Max. Unit

Modem transmit level

Transmit signal level

relative value

VAOM

VDM

LO–, LO+ Differential

(Mark signal) – (space signal)

–6.0 –4.0 –2.0 dBm

–1.5

0

+1.5 dB

Transmit carrier

frequency

Receive signal level

Carrier detection level

Carrier detection

hysteresis

fM

—

XD = 1

1292 1300 1308 Hz

fS

—

XD = 0

2092 2100 2108 Hz

VAI

Level of LI1O and LI2O

–51

—

–6 dBm

VON Level of LI1O and LI2O OFF → ON

— –44.5 –42 dBm

VOFF

1700 Hz

ON → OFF –51 –46.5 — dBm

vHYS

—

2

—

dB

Carrier detection delay

time

tCDD

OFF → –30 dBm

5

10

15

ms

Carrier detection hold

time

tCDH

–30 dBm → OFF

23

28

34

ms

Demodulation bias

distortion

DBS

1200 bps, 1:1 pattern

–10

—

+10

%

Note: RD is fixed at “1” when the carrier detector is OFF.

AC Characteristics (CLKO)

Parameter

Output amplitude

Symbol

VCOH

VCOL

Condition

CL = 100 pF

(VDD = 4.5 to 5.5 V, Ta = –40 to +85°C)

Min. Typ. Max. Unit

0.9 ×

—

VDD

VDD

V

0

—

0.1 ×

V

VDD

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