SSM2165(1999) 데이터 시트보기 (PDF) - Analog Devices

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SSM2165
(Rev.:1999)

Microphone Preamplifier with Variable Compression and Noise Gating

Analog Devices 

SSM2165–SPECIFICATIONS (V+ = 5 V, f = 1 kHz, RL = 100 k⍀, RCOMP = 0 ⍀, TA= 25؇C, unless otherwise noted)

Parameter

Symbol Conditions

Min Typ Max Unit

AUDIO SIGNAL PATH

Voltage Noise Density

Noise

Total Harmonic Distortion

SSM2165-1

SSM2165-2

Input Impedance

Output Impedance

Load Drive

Input Voltage Range

Output Voltage Range

Gain Bandwidth Product

SSM2165-1

SSM2165-2

en

THD+N

15:1 Compression, VIN = GND

20 kHz Bandwidth, VIN = GND

2nd and 3rd Harmonics, VIN = –30 dBu

2nd and 3rd Harmonics, VIN = –20 dBu

22 kHz Low-Pass Filter

ZIN

ZOUT

Resistive

5

Capacitive

1% THD

1% THD

1:1 Compression

VCA G = 18 dB

VCA G = 8 dB

17

–109

0.2 0.5

0.2 0.5

180

75

2

1

1.4

300

100

nV/√Hz2

dBu1

%

%

kΩ

Ω

kΩ

nF

V rms

V rms

kHz

kHz

CONTROL SECTION

VCA Dynamic Gain Range

VCA Fixed Gain

SSM2165-1

SSM2165-2

Rotation Point

SSM2165-1

SSM2165-2

Compression Ratio, Min

Compression Ratio, Max

Control Feedthrough

15:1 Compression

40

dB

18

dB

8

dB

40

mV rms

100

mV rms

1:1

15:1

±5

mV

POWER SUPPLY

Supply Voltage Range

Supply Current

Quiescent Output Voltage Level

Power Supply Rejection Ratio2

VS

ISY

PSRR

4.5

5.5

V

7.5 10

mA

2.2

V

50

dB

NOTES

10 dBu = 0.775 V rms.

2Referred to input.

Specifications subject to change without notice.

–2–

REV. B

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