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參數(shù)資料
| 型號(hào)： | ML50000 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Echo Canceler(回聲消除器) |
| 中文描述： | 回聲消除器（回聲消除器） |
| 文件頁數(shù)： | 20/26頁 |
| 文件大?。?/td> | 287K |
| 代理商： | ML50000 |
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Semiconductor
ML50000
20/26
ECHO CANCELER CHARACTERISTICS DIAGRAM
ERL vs. echo attenuation
E
ERL [dB]
Measurement Conditions
RIN input = –20 dBm 5 kHz band white noise
Echo delay time T
D
= 20 ms
ATT, GC, NLP = OFF
Power supply voltage 5 V
RIN input level vs. echo attenuation
E
RIN input level [dBm0]
Measurement Conditions
RIN input: 5 kHz band white noise
Echo delay time T
D
= 20 ms
ERL = 6 dB
Power supply voltage 5 V
Echo delay time vs. echo attenuation
E
Echo delay time [ms]
Measurement Conditions
RIN input = –10 dBm
5 kHz band white noise
ERL = 6 dB
ATT, GC, NLP = OFF
The second through seventh chips
are connected in a cascade.
Power supply voltage 5 V
0
10
20
30
40
40
30
20
10
0
–10
ML50000
MSM7602
0
10
20
30
40
50
60
–50 –40 –30 –20 –10
0
ATT, GC, NLP=OFF
ATT, GC=OFF
NLP=ON
0
10
20
30
0
50
100
150
200
1
40
2
Note:
The characteristics above are for the MSM7533 (V
DD
5 V,
m
-law interface). The
MSM7704 (V
DD
3 V,
m
-law interface) provides the same characleristics without input
and output levels. Refer to are PCM CODEC data sheet.
MSM7533
(for both transmit and receive)
0 dBm0 = 0.85 Vrms = 0.8 dBm (600
W
)
MSM7704
(for transmit side)
0 dBm0 = 0.35 Vrms = –6.9 dBm (600
W
)
MSM7704
(for receive side)
0 dBm0 = 0.5 Vrms = –3.8 dBm (600
W
)
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