NTE708 datasheet(2/3 Pages) NTE

2 / 3 page

Dynamic Characteristics: (FM Modulation Freq = 1kHz, Source Resistance = 50

Ω,

TA = +25°C for all tests)

Parameter

Test Conditions

Min

Typ

Max

Unit

(V+ = 12V, fo = 4.5MHz, ∆f = ±25kHz, Peak Separation = 150kHz)

Amplifier Voltage Gain

Vin ≤ 50µVrms

–

AM Rejection

Vin = 10mVrms, Note 1

–

Input Limiting Threshold Voltage

–

250

–

µVrms

Recovered Audio Output Voltage

Vin = 10mVrms

–

0.72

–

Vrms

Output Distortion

Vin = 10mVrms

–

(V+ = 12V, fo = 5.5MHz, ∆f = ±50kHz, Peak Separation = 260kHz)

Amplifier Voltage Gain

Vin ≤ 50µVrms

–

AM Rejection

Vin = 10mVrms, Note 1

–

Input Limiting Threshold Voltage

–

250

–

µVrms

Recovered Audio Output Voltage

Vin = 10mVrms

–

1.2

–

Vrms

Output Distortion

Vin = 10mVrms

–

(V+ = 8V, fo = 10.7MHz, ∆f = ±75kHz, Peak Separation = 550kHz)

Amplifier Voltage Gain

Vin ≤ 50µVrms

–

AM Rejection

Vin = 10mVrms, Note 1

–

Input Limiting Threshold Voltage

–

600

–

µVrms

Recovered Audio Output Voltage

Vin = 10mVrms

–

0.3

–

Vrms

Output Distortion

Vin = 10mVrms

–

1.4

–

(V+ = 12V, fo = 10.7MHz, ∆f = ±75kHz, Peak Separation = 550kHz)

Amplifier Voltage Gain

Vin ≤ 50µVrms

–

AM Rejection

Vin = 10mVrms, Note 1

–

Input Limiting Threshold Voltage

–

600

–

µVrms

Recovered Audio Output Voltage

Vin = 10mVrms

–

0.48

–

Vrms

Output Distortion

Vin = 10mVrms

–

1.4

–

Note 1. 100% FM, 30% AM Modulation.

Pin Connection Diagram

Audio Output

Detector Input Ref

N.C.

IF Input

Decoupling

IF Input Ref

GND

De–Emphasis

Det Input (QuadratureNetwork)

Test Point

10 Amplifier Output

Amplifier Low Output

N.C.

VCC

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