NTE1794 datasheet(2/2 Pages) NTE | Integrated Circuit Volatge Controlled Amp (VCA) for dbx Noise Reduction System

2 page

Electrical Characteristics: (TA = +25°C, VCC = +12V, VEE = –12V, ISET = 2mA, f = 1kHz,

RIN = ROUT = 33kΩ unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Supply Current

ICC

Non Signal

1.0

2.0

3.0

Equivalent Input Bias Current

IIN

Non Signal

–

Gain Cell Idling Current

IDLE

Non Signal

–

µA

Gain Cell Offset Voltage

VOFF

AV = 0dB, THD ≤ 0.07%

–

±0.5

–

Control Constant

AV = –30dB to +30dB

–5.8

–5.9

–6.1

mV/dB

Total Harmonic Distortion

THD

AV = 0dB, VO = 0dBV, BPF = 400Hz to 5kHz

–

0.007

0.07

AV = +20dB, VO = 0dBV, BPF = 400Hz to 5kHz

–

0.02

0.10

AV = –20dB, VIN = 0dBV, BPF = 400Hz to 5kHz

–

0.02

0.15

Output Noise Level

AV = 0dB, RIN = 33kΩ, BPF = 10Hz to 20kHz

–

–94

–84

dBV

Symmetry Control Voltage

VSYM

AV = 0dB, THD ≤ 0.07%

–4

GC2

GC1

ISET

VCC

Pin Connection Diagram

(Front View)

Signal Input

GND

Signal Output

GC Bias

.768 (19.52) Max

.118 (3.0) Max

.700 (17.78)

.100 (2.54) Typ

.165 (4.2)

Min

.264 (6.72)

Max

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