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
文件頁數(shù)： 17/68頁
文件大?。?/td> 1361K
代理商： AM79Q021
SLAC Products
17
Discrimination against Out-of-Band Input Signals
When an out-of-band sine wave signal with frequency and level A is applied to the analog input, there may be
frequency components below 4 kHz at the digital output which are caused by the out-of-band signal. These
components are at least the specified dB level below the level of a signal at the same output originating from a
1014 Hz sine wave signal with a level of A dBm0 also applied to the analog input. The minimum specifications are
shown in the following table.
Frequency of Out-of-Band Signal
Amplitude of Out-of-Band Signal
Level below A
16.6 Hz < f < 45 Hz
–
25 dBm0 < A
≤
0 dBm0
18 dB
45 Hz < f < 65 Hz
–
25 dBm0 < A
≤
0 dBm0
25 dB
65 Hz < f < 100 Hz
–
25 dBm0 < A
≤
0 dBm0
10 dB
3400 Hz < f < 4600 Hz
–
25 dBm0 < A
≤
0 dBm0
see Figure 5
4600 Hz < f < 100 kHz
–
25 dBm0 < A
≤
0 dBm0
32 dB
0
–
10
–
20
–
30
–
40
–
50
Frequency (kHz)
3.4
4.0
4.6
–
32 dB,
–
25 dBm0 < input < 0 dBm0
QSLAC Device Specification
Level (dB)
19256A-012
–
28 dBm
Note:
The attenuation of the waveform below amplitude A between
3400 Hz and 4600 Hz is given by the formula:
Attenuation (db)
14
14
1200
f
–
)
-------------------------
sin
–
=
Figure 5. Discrimination Against Out-of-Band Signals
相關(guān)PDF資料
PDF描述
AM79Q021JC Quad Subscriber Line Audio-Processing Circuit (QSLAC) Devices
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79Q021JC 制造商:Advanced Micro Devices 功能描述: 制造商:Advanced Micro Devices 功能描述:PCM CODEC, Quad, 44 Pin, Plastic, PLCC 制造商:Analog Devices 功能描述:PCM CODEC, Quad, 44 Pin, Plastic, PLCC
AM79Q021JC/T 制造商:Advanced Micro Devices 功能描述:
AM79Q021VC 制造商:Advanced Micro Devices 功能描述:
AM79Q02JC 制造商:Advanced Micro Devices 功能描述:
AM79Q031 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Quad Subscriber Line Audio-Processing Circuit (QSLAC) Devices
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