MSM7541 datasheet(13/20 Pages) OKI

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¡ Semiconductor

MSM7541/7542

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AC Characteristics (Continued)

Absolute Level (Initial Difference)

Nidle T

—

–70

–68

dBmOp

Nidle R

—

–76

AV T

0.338

0.35

0.362

AV R

0.483

0.50

0.518

Vrms

1020

Absolute Delay

AV Tt

–0.2

—

+0.2

AV Rt

–0.2

—

+0.2

1020

—

0.60

A to A

BCLOCK

= 64 kHz

Transmit Group Delay

tgd T1

—

0.19

0.75

tgd T2

—

0.11

0.35

tgd T3

—

0.02

0.125

tgd T4

—

0.05

0.125

0.07

tgd T5

—

0.75

Receive Group Delay

—

0.00

0.75

0.00

—

0.00

0.125

—

0.09

0.125

—

0.12

0.75

—

–74

Idle Channel Noise

—

AIN = SG

*1 *2

VDD = 3.3 V

Ta = 25°C

VDD = +3 to

3.8 V

Ta = –30

to +85°C

Absolute Level

(Deviation of Temperature and Power)

500

600

1000

2600

2800

Crosstalk Attenuation

CR T

7585—

CR R

1020

TRANS Æ RECV

RECV Æ TRANS

tgd R1

tgd R2

tgd R3

tgd R4

tgd R5

500

600

1000

2600

2800

—

0.35

Condition

(VDD = 3.0 V to 3.8 V, Ta = –30°C to +85°C)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Level

(dBm0)

Freq.

(Hz)

*1 Psophometric filter is used

*2 Input "0" code to PCMIN

*3 AVR is defined at VFRO output

*4 Minimum value of the group delay distortion

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