1085

NTE1085
Integrated Circuit
Low Noise Audio Preamp
Features:
D Low Noise: VNI = 0.8µVrms(Typ)
D High Open Loop Voltage Gain: GVO = 92dB (Typ)
D Low Distortion: THD = 0.1% (Max) at VOUT = 7Vrms, GV = 40dB, f= 1kHz
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4mW/°C
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Electrical Characteristics: (VCC = 35V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Current
ICC
VIN = 0
–
3.5
6.0
mA
Voltage Gain
Open Loop
GVO
VIN = –85dBm, f = 1kHz
87
92
–
dB
GV
VOUT = 7Vrms, f = 1kHz
38
40
42
dB
Maximum Output Voltage
VOM
f = 1kHz, THD = 0.1%
7.0
9.0
–
Vrms
Equivalent Input Noise Voltage
VNI
RIAA Equalizer, Rg = 2.2kΩ, f = 1kHz
–
0.8
1.8
µVrms
Closed Loop
Pin Connection Diagram
(Front View)
7 VCC
6 Output
5 Bypass
4 GND
3 Feedback
2 Input High
1 Preamp Load Resistor
.128 (3.2)
.099
(2.5)
Min
.012 (0.25)
.700 (17.8) Max
1
7
.100 (2.54)
.600 (15.24)
.323
(8.2)
Max
Similar pages