SSM2167-2RM-REEL 查看數據表（PDF） - Analog Devices

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SSM2167-2RM-REEL

Low Voltage Microphone Preamplifier with Variable Compression and Noise Gating

Analog Devices 

SSM2167 – Typical Performance Characteristics

100

1

TA = 25؇C

V+ = 3V

RLOAD = 100k⍀

COMPRESSION RATIO 2:1

ROTATION POINT = 63mV rms

10

1

0

500 1,000 1,500 2,000 2,500 3,000 3,500

RGATE – ⍀

TPC 1. Noise Gate vs. RGATE

1

TA = 25؇C

V+ = 3V

VIN = 24.5mV rms

COMPRESSION RATIO 1:1

ROTATION POINT = 63mV rms

NOISE GATE SETTING = 1.4mV rms

0.1



0.01

20

100

1k

FREQUENCY – Hz

10k 20k 30k

TPC 2. THD + N vs. Frequency

35

25

15

5

؊5

VIN = 2mV rms

RCOMP = 175k⍀

ROTATION POINT = 63mV rms

NOISE GATE SETTING = 1.4mV rms

؊15

1k

10k

100k

1M

10M

FREQUENCY – Hz

TPC 3. GBW Curves vs. VCA Gain

0.1

TA = 25؇C

V+ = 3V

VIN FREQUENCY = 1kHz

RLOAD = 100k⍀

COMPRESSION RATIO 1:1

ROTATION POINT = 63mV rms

NOISE GATE SETTING = 1.4mV rms

0.01

10m

0.1

1

INPUT VOLTAGE – V rms

TPC 4. THD + N vs. Input

0

COMPRESSION RATIO 10:1

؊10

؊20

COMPRESSION RATIO 5:1

؊30

COMPRESSION RATIO 2:1

؊40

COMPRESSION RATIO 1:1

؊50

TA = 25؇C

؊60

V+ = 3V

RL = 100k⍀

؊70

ROTATION POINT = 63mV rms

NOISE GATE SETTING = 1.4mV rms

؊80

؊80 ؊70 ؊60 ؊50 ؊40 ؊30 ؊20 ؊10

INPUT – dBV

TPC 5. Output vs. Input Characteristics

؊10

؊20

V+ = 3V + 0.1

RGATE = 5k⍀

RCOMP = 0V

؊30

؊40

؊50

؊60

؊70

؊80

10

100

1k

10k

FREQUENCY – Hz

100k

TPC 6. PSRR vs. Frequency

–4–

REV. A

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