MSM7731-02 OKI [OKI electronic componets], MSM7731-02 Datasheet - Page 22

• Manufacturer Part Number: MSM7731-02
• Description: Dual Echo Canceler & Noise Canceler with Dual Codec for Hands-Free
• Manufacturer: OKI [OKI electronic componets]

Rin input level vs. echo attenuation
(Measuring Conditions)
E.R.L level vs. echo attenuation (with GLPAD)
(Measuring Condition)
1 Semiconductor
35
25
15
45
40
30
20
10
45
40
35
30
25
20
15
10
5
0
5
0
-50
-40
-35
-45
-30
GLPAD= 0dB
GLPAD= 6dB
GLPAD= 12dB
GLPAD= 18dB
Rin signal
E.R.L
Delay time
ATT, GC
Noise floor
Rin signal
Rin input level
Delay time
ATT, GC
Noise floor
-25
-40
E.R.L vs. echo attenuation (with GLPAD)
RIN input level vs. echo attenuation
-20
-35
Rin input level [dBm]
-15 -10
E.R.L [dB]
-30
: 5 kHz band white noise
: –6 dB
: 4 ms
: OFF
: –60 dBm (P-message filter unused)
: 5 kHz band white noise
: –20 dBm (with GLPAD = ±0 dB)
: –26 dBm (with GLPAD = ±6 dB)
: –32 dBm (with GLPAD = ±12 dB)
: –38 dBm (with GLPAD = ±18 dB)
: 4 mS
: OFF
: –60 dBm (P-message filter unused)
-5
-25
0
5
-20
10
15
-15
20
-10
25
FEDL7731-02-04
MSM7731-02
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