SSM2118 Просмотр технического описания (PDF) - Analog Devices

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SSM2118

HUSH Stereo Noise Reduction System with Adaptive Threshold

Analog Devices 

SSM2018T/SSM2118T–Typical Characteristics

60

TA = +25°C

VS = ±15V

40

20

0

–20

–40

–60

–80

100

1k

10k

100k

1M

10M

FREQUENCY – Hz

1

TA = +25°C

VS = ±15V

0.1

0.010

0.001

0.1

1

AMPLITUDE – VRMS

10

20

Figure 13. SSM2018T Gain vs. Frequency

Figure 16. SSM2118T THD + N vs. Amplitude

(Gain = 0 dB, fIN = 1 kHz, 80 kHz Low-Pass Filter)

0.1

TA = +25°C

RF = 18kΩ

AV = +20dB

AV = –20dB

0.010

AV = 0dB

1

TA = +25°C

VS = ±15V

0.1

0.010

0.001

20

100

1k

FREQUENCY – Hz

10k 20k

Figure 14. SSM2118T THD + N Frequency (80 kHz

Low-Pass Filter, for AV = 0 dB, VIN = 1 V rms;

for AV = +20 dB, VIN = 0.1 V rms; for AV = –20 dB,

VIN = 10 V rms)

100

90

80

70

60

50

40

30

20

10

0

0.000

0.005

TA = +25°C

AV = 0dB

300 UNITS

VIN = 10dBu

VS = ±15V

0.010

0.015

DISTORTION – %

0.020

0.025

Figure 15. SSM2118T Distortion Distribution

0.001

10m

0.1

AMPLITUDE – VRMS

1

2

Figure 17. SSM2118T THD + N vs. Amplitude

(Gain = +20 dB, fIN = 1 kHz, 80 kHz Low-Pass Filter)

1.0

TA = +25°C

VS = ±15V

0.1

0.01

0.001

–60

–40

–20

0

+20

+40

GAIN – dB

Figure 18. SSM2118T THD + N vs. Gain (fIN = 1 kHz;

for –60 dB ≤ AV ≤ –20 dB, VIN = 10 V rms;

for 0 dB ≤ AV ≤ +20 dB, VIN = 1 V rms)

–6–

REV. A

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