ml7074-003 Oki Semiconductor, ml7074-003 Datasheet - Page 22

• Manufacturer Part Number: ml7074-003
• Description: Dual Echo Canceler & Noise Canceler With Dual Codec For Hands-free Msm7731-02dual Echo Canceler & Noise Canceler With Dual Codec For Hands-free
• Manufacturer: Oki Semiconductor

Rin input level vs. echo attenuation
(Measuring Conditions)
E.R.L level vs. echo attenuation (with GLPAD)
(Measuring Condition)
OKI Semiconductor
45
40
35
30
25
20
15
10
35
25
15
45
40
30
20
10
5
5
0
0
-50
-40
-35 -30
Rin signal
Rin signal
E.R.L
Delay time
ATT, GC
Noise floor
-45
Rin input level
Delay time
ATT, GC
Noise floor
GLPAD=±0dB
GLPAD=±6dB
GLPAD=±12dB
GLPAD=±18dB
-25
-40
E.R.L vs. echo attenuation (with GLPAD)
RIN input level vs. echo attenuation
-20
: 4 ms
: –60 dBm (P-message filter unused)
: –6 dB
-35
: –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
: –60 dBm (P-message filter unused)
Rin input level [dBm]
-15 -10
E.R.L [dB]
-30
: 5 kHz band white noise
: OFF
: OFF
: 5 kHz band white noise
-5
-25
0
5
-20
10
15
-15
20
FEDL7731-02-11
-10
25
MSM7731-02
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