MSM6895 datasheet(18/43 Pages) OKI

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¡ Semiconductor

MSM6895/6896

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AC Characteristics 1 (CODEC) (Continued)

tgd T1

tgd T2

tgd T3

tgd T4

tgd T5

Transmit Group Delay

500

600

1000

2600

2800

0.19

0.12

0.02

0.05

0.08

—

0.75

0.35

0.125

0.75

0*4

tgd R1

tgd R2

tgd R3

tgd R4

tgd R5

Receive Group Delay

500

600

1000

2600

2800

0.0

0.09

0.12

—

0.75

0.35

0.125

0.75

0*4

CR T

Transmit Æ Receive

—

CR R

Receive Æ Transmit

—

1020

Crosstalk Attenuation

4.6 kHz to

72 kHz

Discrimination

DIS

0 to 4000 Hz

–25

32.0

—

300 to

3400

Out-of-band Signal

Spurious

4.6 kHz to 100 kHz

–37.5

—

–35

dBmO

fa = 470

fb = 320

Intermodulation Distortion

IMD

2fa–fb

–4

–52

—

–35

dBmO

PSR T

——

PSR R

0 to 50

kHz

100

mVpp

Power Supply Noise

Rejection Ratio

Parameter

Symbol

Condition

Typ.

Unit

Min.

Max.

Freq.

(Hz)

Level

(dBm0)

(VDD = 5 V ±5%, Ta = –10°C to +70°C)

AIN = SG

Nidle T

—

——

–73.5

–71

–70

–69

Nidle R

—

–77.8

–74

Idle Channel Noise

dBmOp

AV T

0.5671

0.6007

0.6363

AV R

0.5671

0.6007

0.6363

1020

Vrms

Absolute Amplitude

A to A

CK64 = 64 kHz

Absolute Delay Time

1020

—

0.58

0.60

Transmit CODEC

Receive CODEC

Notes:

*1 Psophometric filter is used

*2 Upper is specified for the MSM6895, lower for the MSM6896

*3 PCM data for MSM6895: All "1"

PCM data for MSM6896: "11010101"

*4 Minimum value of the group delay distortion

*5 The measurement under idle channel noise

MSM6895 Datasheet(PDF) 18 Page - OKI electronic componets

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