Front End. NTE1843 Datasheet

NTE1843 End. Datasheet pdf. Equivalent

Part NTE1843
Description Integrated Circuit FM Front End
Feature NTE1843 Integrated Circuit FM Front End Description: The NTE1843 is an integrated circuit in a 9–Lea.
Manufacture NTE
Datasheet
Download NTE1843 Datasheet




NTE1843
NTE1843
Integrated Circuit
FM Front End
Description:
The NTE1843 is an integrated circuit in a 9–Lead SIP type package designed for use in FM front–end
applications. Typical applications include portable radio and radio cassettes.
Compared with conventional types, supply voltage dependence, overload characteristics and spuri-
ous radiation characteristics are improved.
Features:
D Wide Supply Voltage Range: VCC = 1.6V to 6.0V
D Excellent Supply Voltage Dependence of Loacl Oscillator: Oscillator Stop VCC = 0.9V Typ
D Improved Inter–Modulation Charactristics by Double Balanced Type Mixer Circuit
D Low Spurious Radiation
D Built–In Clamping Diode for the Local Oscillator Output
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4mW/°C
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Electrical Characteristics: (TA = +25°C, VCC = 5V, f = 83MHz, fm = 1kHz, f = 22.5kHz dev. unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Supply Current
–3dB Limiting Sensitivity
Quiescent Sensitivity
Conversion Gain
Local OSC Voltage
Parallel Input Resistance (Pin1 Impedance)
Parallel Output Resistance (Pin3 Impedance)
Parallel Output Capacitance (Pin3 Impedance)
Parallel Input Resistance (Pin4 Impedance)
Parallel Input Capacitance (Pin4 Impedance)
Parallel Output Resistance (Pin6 Impedance)
Parallel Output Capacitance (Pin6 Impedance)
Local OSC Stop Voltage
ICC
Vin(lim)
QS
GC
VOSC
rip1
rop3
cop3
rip4
cip4
rop6
cop6
Vstop
VIN = 0
fOSC = 60MHz
f = 83MHz
f = 10.7MHz
– 5.2 8.0 mA
– 3.0 7.0 dBµ
– 11 – dBµ
– 31 – dB
150 230 350 mVrms
– 57 –
– 25 – k
– 2.0 –
pF
– 2.7 –
k
– 3.3 –
pF
– 100 0
k
– 4.8 –
pF
– 0.9 1.3 V



NTE1843
Pin Connection Diagram
(Front View)
9 VCC
8 OSC Output
7 OSC Input
6 Mixer Output
5 GND
4 Mixer Input
3 Tuning Coil
2 Bypass
1 RF Input
.126 (3.2)
.906 (23.0) Max
.323
(8.2)
Max
1
9
.100 (2.54)
.020 (0.50)
.800 (20.3)
.099
(2.5)
Min







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