msm7719-01 Oki Semiconductor, msm7719-01 Datasheet - Page 22

• Manufacturer Part Number: msm7719-01
• Description: Echo Canceler With Adpcm Transcoder
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Echo return loss (E. R. L.) vs. echo attenuation
Conditions:
- Input level of white noise of –10 dBm, 3.4 kHz band at Rin
- Echo delay time: 2 ms
- ATT, GC, NLP: Off
Rin input vs. echo attenuation
Conditions:
- Input level of 3.4 kHz-band white noise at Rin
- Echo delay time: 2 ms
- ATT, GC, NLP: Off
E. R. L.=–6 dBm
40
35
30
25
20
15
10
40
35
30
25
20
15
10
0
5
5
0
–40
–50
Rin Input Level vs. Echo Attenuation
–40
E. R. L. vs. Echo Attenuation
–30
–30
Rin Input Level [dBm]
E. R. L. [dBm]
–20
–20
–10
–10
0
0
MSM7719-01
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