SSM2118TS データシートの表示（PDF） - Analog Devices

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SSM2118TS

HUSH Stereo Noise Reduction System with Adaptive Threshold

Analog Devices 

SSM2018T/SSM2118T–Typical Characteristics

0.1

TA = +25°C

VS = ±15V

RF = 18kΩ

AV = +20dB

0.010

AV = –20dB

AV = 0dB

1

TA = +25°C

VS = ±15V

RF = 18kΩ

0.1

0.010

0.001

20

100

1k

FREQUENCY – Hz

10k 20k

Figure 1. SSM2018T THD + N Frequency (80 kHz Low-Pass

Filter, for AV = 0 dB, VIN = 3 V rms; for AV = +20 dB,

VIN = 0.3 V rms; for AV = –20 dB, VIN = 3 V rms)

100

90

TA = +25°C

AV = 0dB

80

300 UNITS

VIN = 10dBu

70

VS = ±15V

60

50

40

30

20

10

0

0.000

0.005

0.010

0.015

DISTORTION – %

0.020

0.025

Figure 2. SSM2018T Distortion Distribution

1

TA = +25°C

RF = 18kΩ

VS = ±15V

0.1

0.010

0.001

10m

0.1

AMPLITUDE – VRMS

1

2

Figure 4. SSM2018T THD + N vs. Amplitude

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

1.0

TA = +25°C

VS = ±15V

RF = 18kΩ

0.1

0.01

0.001

–60

–40

–20

0

GAIN – dB

20

40

Figure 5. SSM2018T 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)

0.1

TA = +25°C

RF = 18kΩ

0.01

0.001

0.1

1

AMPLITUDE – VRMS

10

20

Figure 3. SSM2018T THD + N vs. Amplitude (Gain = 0 dB,

fIN = 1 kHz, 80 kHz Low-Pass Filter)

0.001

0

±3

±6

±9

±12

±15

±18

SUPPLY VOLTAGE – Volts

Figure 6. SSM2018T THD + N vs. Supply Voltage

(AV = 0 dB, VIN = 1 V rms, fIN = 1 kHz, 80 kHz

Low-Pass Filter)

–4–

REV. A

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