1543

NTE1543
Integrated Circuit
FM Noise Suppressor
Features:
D Less external components
D Low distortion and high signal to noise ratio
D Wide working suply voltage: 8V to 15V
D Wide working temperature range: −30° to 70°C
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Power Dissipation (TA = +70°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +125°C
Electrical Characteristics: (TA = +25°C, VCC = 12.4V unless otherwise specified)
Parameter
Voltage Gain
Symbol
GV
Test Conditions
Pin 1 Input: f = 1kHz, Vin = 120mV
Min
Typ
Max
Unit
−
0
−
dB
−
0.035
−
%
Total Harmonic Distortion
THD
Signal−to−Noise Ratio
S/N
Pin 1 Input: f = 1kHz,
Vin = 120mV, 0dB Rg = 4.7kΩ
−
80
−
dB
Output Voltage
VO
Pin 1 Input: f = 1kHz, Output THD = 2%
−
2.7
−
Vrms
NSR
Pin 1 Input: f = 1kHz, Vin = 120mV, 0dB
HPF Input: f = 100kHz, Vin = 80mV
−
40
−
dB
Vth
Pin 1 Input: f = 1kHz, Vin = 120mV, 0dB
HPF Input: f = 100kHz, Vin: Variable
−
46
−
mVrms
HPF Input: Pin 10: Monitor
−
40
−
μs
Noise Supression Ratio
Threshold Voltage
Pulse Duration of One Shot
T
Note *. Cut−off Time Circuit is off condition (Pin 12 connected to Pin 9)
Pin Connection Diagram
Input
1
16 HPF
LPF
2
15 N.C.
LPF
3
14 HPF
LPF
4
13 Bypass
Storage
5
12 Cut−Off Circuit
Output
6
11 One Shot Multi
0.01μF Capacitor
7
10 Pulse Duration Circuit
0.01μF Capacitor
8
9
16
VCC
9
.260 (6.6) Max
1
8
.785 (19.9)
Max
.300
(7.62)
.200 (5.08)
Max
.245
(6.22)
Min
.100 (2.54)
.700 (17.7)