參數(shù)資料
型號(hào): AM79Q021
廠商: Electronic Theatre Controls, Inc.
英文描述: Quad Subscriber Line Audio-Processing Circuit (QSLAC) Devices
中文描述: 四用戶線路音頻處理電路(QSLAC)設(shè)備
文件頁(yè)數(shù): 16/68頁(yè)
文件大小: 1361K
代理商: AM79Q021
16
Am79Q02/021/031 Data Sheet
Total Distortion, Including Quantizing Distortion
The signal-to-total distortion will exceed the limits shown in Figure 4 for either transmission path when the input is
a sine wave signal of frequency 1014 Hz.
Input Level (dBm0)
30
35.5
30
40
45
QSLAC Device
Specification
25
19256A-010
35.5
a. A-law
Signal-to-Total
Distortion (dB)
0
Input Level (dBm0)
31
35.5
30
40
45
27
19256A-011
35.5
Signal-to-Total
Distortion (dB)
b.
μ
-law
Figure 4. A-law/
μ
-law Total Distortion with Tone Input (Both Paths)
QSLAC Device
Specification
+3
0
+3
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