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SSM2000 数据表(PDF) 5 Page - Analog Devices

部件名 SSM2000
功能描述  HUSH Stereo Noise Reduction System with Adaptive Threshold
PDF  16 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

SSM2000 数据表(HTML) 5 Page - Analog Devices

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INPUT SIGNAL – Vrms
10
1
0.01
0.01
2
0.1
1
0.1
TA = +25°C
VS = ± 4.25V (Pin 5, 20)
DEF THRESHOLD = 0V (Pin 14)
DEFEAT = ON (Pin 16)
MUTE = OFF (Pin 17)
RL = 100kΩ
BOTH CHANNELS
Figure 6. THD+N (%) vs. Input Signal
FREQUENCY – Hz
1
0.1
0.001
20
30k
100
1k
10k
0.01
TA = +25°C
VS = ± 4.25V (Pin 5, 20)
VIN = 300mVrms SINE WAVE (Pin 1, 2)
DEF THRESHOLD = 0V (Pin 14)
DEFEAT = ON (Pin 16)
MUTE = OFF (Pin 17)
RL = 100kΩ
BOTH CHANNELS
Figure 7. THD+N (%) vs. Frequency
FREQUENCY – Hz
6
4
–12
20
200k
100
1k
10k
100k
2
0
–8
–2
–4
–6
–10
TA = +25°C
VS = ± 4.25V (Pin 5, 20)
VIN = 300mVrms SINE WAVE (Pin 1, 2)
DEF THRESHOLD = 0V (Pin 14)
DEFEAT = ON (Pin 16)
MUTE = OFF (Pin 17)
RL = 100kΩ
BOTH CHANNELS
Figure 8. –3 dB Bandwidth
INPUT SIGNAL – dBu
@ 1kHz
0
–100
–70
0
–60
–50
–40
–30
–20
–10
–10
–60
–70
–80
–90
–30
–50
–20
–40
VTH = 0V
VTH = –1.2V
VTH = –2.0V
TA = +25°C
VS = ± 4.25V (Pin 5, 20)
DEF THRESHOLD = 0V (Pin 14)
DEFEAT = OFF (Pin 16)
MUTE = OFF (Pin 17)
RL = 100kΩ
0dBu = 0.775mVrms
Figure 9. Output vs. Input Characteristics (With Different
Adaptive Threshold Voltage, Pin 17)
VCA CONTROL VOLTAGE (Pin 7) – V
10
–90
–1
3
–0.5
0
0.5
1
1.5
2
2.5
0
–30
–50
–70
–80
–10
–20
–40
–60
TA = +25°C
VS = ± 4.25V (Pin 5, 20)
VIN = 300mVrms SINE WAVE (Pin 1, 2)
DEF THRESHOLD = 0V (Pin 14)
DEFEAT = OFF (Pin 16)
MUTE = OFF (Pin 17)
RL = 100kΩ
BOTH CHANNELS
Figure 10a. Channel Output vs. VCA Control Voltage (Pin 7)
FREQUENCY – Hz
20
80k
100
1k
10k
3.00
0.7
–20.0
–1.6
–3.9
–6.2
–8.5
–10.8
–13.1
–15.4
–17.7
TA = +25°C
VS = ± 4.25V (Pin 5, 20)
VIN = 300mVrms SINE WAVE (Pin 1, 2)
DEF THRESHOLD = 0V (Pin 14)
DEFEAT = OFF (Pin 16)
MUTE = OFF (Pin 17)
RL = 100kΩ
100 – 2kHz MIN BW
4kHz
6kHz
8kHz
20kHz
40kHz
50kHz
Figure 10b. VFC Characteristics (Simulated Noise Level
90 mV rms with Different Frequency) Applied through a
3-Pole HP filter
Typical Performance Characteristics–SSM2000
–5–
REV. 0



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