NTE1580 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit IF Amp & Detector

NTE1580
Integrated Circuit
IF Amp & Detector
Description:
The NTE1580 is an IF amplifier in a 14–Lead DIP type package with a symmetrical FM demodulator
and an AF amplifier with adjustable output voltage. The AF amplifier is also provided with an output
for volume control and an input for VCR operation.
The input and output of the NTE1580 are especially designed for LC–circuits, but the input can also
be used with a ceramic filter.
Absolute Maximum Ratings:
Maximum Supply voltage (Pin11, Note 1), V_p = V_11–1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Maximum Adjustment Voltage (Pin5), V_5–1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Maximum Total Power Dissipation, P_tot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mW
Bypass Resistance, R_13–14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1kΩ
Operating Ambient Temperature Range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –15° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C
Note 1. Supply voltage operating range is 10V to 18V
Electrical Characteristics: (V_P = 12V, T_A = +25°C, f = 5.5MHz unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
IF Voltage Gain
Input Voltage Starting Limiting
IF Output Voltage at Limiting
(Peak–to–Peak)
G_{V IF6–14}
V_i
V_{O IF(p–p)}
∆f = ±50kHz, f_m = 1kHz
– 68 – dB
– 30 60 µV
– 250 – mV
AM Suppression
IF Residual Voltage Without De–Emphasis
Pin12
Pin8
AF Voltage Gain
AF Adjustment
AF Output Voltage Control Range
Adjustment Resistor
DC Voltage Portion at the AF Outputs
Pin12
Pin8
α
V_IF12
V_IF8
G_{V AF8–3}
∆V_O(AF)
∆V_O(AF)
R_4–5
V_12–1
V_8–1
∆f = ±50kHz, V_i = 500µV,
f_m = 1kHz, m = 30%
R_4–5 = 5kΩ, R_5–1 = 13kΩ
Note 2
50 60 – dB
– 30 – mV
– 20 – mV
– 7.5 –
20 28 36 dB
70 85 – dB
1 to 10
kΩ
– 5.6 – V
– 4.0 – V
Note 2. Pin5 must be connected to Pin4, when volume control adjustment is not applicable.