MSM6927 datasheet(12/31 Pages) OKI

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¡ Semiconductor

MSM6927/6947

12/31

Analog Interface Characteristics

1. MSM6927

Transmit carrier out (AO)

—

Parameter

Unit

Max.

Typ.

Min.

Symbol

Condition

Carrier Frequency

1310

1300

1290

fCRYSTAL = 3.579545 MHz

(VA = 12 V ±10%, VD = 5 V ±5%, Ta = 0 to 70°C)

Mark

2100

2090

Space

Output Resistance

200

—

ROXA

—

Load Resistance

—

RLXA

—

Load Capacitance

100

—

CLXA

—

Transmit Level

VOXA

*1 dBm

—

Output Offset Voltage

VOSX

–1

+ 1

C1 = 0.047 mF

Out-of-Band Energy

(Referred to Carrier Level)

Refer to Fig. 1

EOX

Receive carrier input (AIN)

Parameter

Unit

Max.

Typ.

Min.

Symbol

Condition

Input Resistance

—

100

RIRA

—

Receive Signal Level Range

*1 dBm

–6

—

–48

VIRA

—

Carrier Detect Level

–43

—

VCD ON

R8 = 33 kW

R9 = 51 kW

—

–48

VCD OFF

OFF

Carrier Detect Hysteresis

—

HYS

VCD ON – VCD OFF

Receive filter

Parameter

Unit

Max.

Typ.

Min.

Symbol

Condition

Group Delay Distortion

—

210

—

DDL

1100 to 2300 Hz

Notes: *1 0 dBm = 0.775 Vrms

*2 The resistor values are typical

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