msm7617 Oki Semiconductor, msm7617 Datasheet - Page 15

• Manufacturer Part Number: msm7617
• Description: 2-channel Echo Canceler
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Echo Canceler Characteristics (refer to characteristics diagram)
Tone Disabler Characteristics
Echo Reduction
Cancelable Echo Delay Time
Tone Detection
Phase Reversal Detection
Release
(Common to Channel 1 and
Channel 2)
(Common to Channel 1 and
Channel 2)
Parameter
Parameter
Symbol
Detection frequency
Detection frequency
Detection condition
L
Detection level
Detection level
Phase reversal
Detection level
Detection time
T
RES
Release time
D
R
(5 kHz white noise band)
E. R. L. = 6 dB
T
ATT, GC, NLP: OFF
R
(5 kHz white noise band)
E. R. L. = 6 dB
ATT, GC, NLP: OFF
D
IN
IN
= 50 ms
= –10 dBm0
= –10 dBm0
Condition
2100Hz. 180° out-of-phase detected before and after 450±25ms.
Min.
2075
2075
–32
380
–32
135
—
—
Min.
—
—
Typ.
2100
2100
180
250
—
—
—
—
Typ.
30
—
Max.
2125
2125
225
–32
—
—
—
—
Max.
—
55
MSM7617
dBm0
dBm0
dBm0
Unit
15/28
ms
ms
Hz
Hz
Unit
°
ms
dB