MSM7617 查看數據表（PDF） - Oki Electric Industry

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MSM7617

2-Channel Echo Canceler

Oki Electric Industry 

¡ Semiconductor

MSM7617

Echo Canceler Characteristics (refer to characteristics diagram)

Parameter

Echo Reduction

(Common to Channel 1 and

Channel 2)

Cancelable Echo Delay Time

(Common to Channel 1 and

Channel 2)

Symbol

Condition

RIN = –10 dBm0

(5 kHz white noise band)

LRES E. R. L. = 6 dB

TD = 50 ms

ATT, GC, NLP: OFF

RIN = –10 dBm0

(5 kHz white noise band)

TD E. R. L. = 6 dB

ATT, GC, NLP: OFF

Min.

—

—

Typ.

30

—

Max. Unit

— dB

55 ms

Tone Disabler Characteristics

Parameter

Detection frequency

Tone Detection

Detection level

Detection time

Detection condition

Phase Reversal Detection

Detection frequency

Detection level

Phase reversal

Release

Detection level

Release time

Min.

Typ.

Max.

Unit

2075

2100

2125

Hz

–32

—

—

dBm0

380

—

—

ms

2100Hz. 180° out-of-phase detected before and after 450±25ms.

2075

2100

2125

Hz

–32

—

—

dBm0

135

180

225

°

—

—

–32

dBm0

—

250

—

ms

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