NTE708
Integrated Circuit TV/FM Sound IF Amplifier
14-PIN DIP

Features:
- Greatly Simplifier FM Demodulator Alignment
- Excellent Performance at V+ = 8V

Info as pdf-file
NTE-ECG replacement list as pdf-file
Diagrams and Info of most NTE-ECG Components

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Power Supply Voltage.............................................................. 16V
Peak Input Voltage (Pin4).......................................................... 3.5V
Power Dissipation (TA = +25°C), PD.............................................. 625mW
Derate Above 25°C.......................................................5mW/°C
Operating Ambient Temperature Range, Topr.................................... 0° to +75°C
Storage Temperature Range, Tstg.......................................... -65° to +150°C

Electrical Characteristics: (T_A = +25°C, V+ = 12V unless otherwise specified)

Parameter	Pin	Test Conditions	Min	Typ	Max	Unit
Drain Current	13	V+ = 8V	10	12	19	mA
		V+ = 12V	-	15	21	mA
Amplifier Input Reference Voltage	6		-	1.45	-	V
Detector Input Reference Voltage	2		-	3.65	-	V
Amplifier High Level Output Voltage	10		1.25	1.45	1.65	V
Amplifier Low Level Output Voltage	9		-	0.145	0.2	V
Detector Output Voltage	1	V+ = 8V	-	3.7	-	V
		V+ = 12V	-	5.4	-	V
Amplifier Input Resistance	4		-	5.0	-	k Ohm
Amplifier Input Capacitance	4		-	11	-	pF
Detector Input Resistance	12		-	70	-	k Ohm
Detector Input Capacitance	12		-	2.7	-	pF
Amplifier Output Resistance	10		-	60	-	Ohm
Detector Output Resistance	1		-	200	-	Ohm
De-Emphasis Resistance	14		-	8.8	-	k Ohm

Dynamic Characteristics: (FM Modulation Freq = 1kHz, Source Resistance = 50 Ohm,T_A = +25°C for all tests)

Parameter	Pin	Test Conditions	Min	Typ	Max	Unit
(V+ = 12V, fo = 4.5MHz, f = ±25kHz, Peak Separation = 150kHz)
Amplifier Voltage Gain	10	Vin </= 50µVrms	-	60	-	dB
AM Rejection	1	Vin = 10µVrms, Note 1	-	36	-	dB
Input Limiting Threshold Voltage	4		-	250	-	µVrms
Recovered Audio Output Voltage	1	Vin = 10µVrms	-	0.72	-	Vrms
Output Distortion	1	Vin = 10µVrms	-	3	-	%
(V+ = 12V, fo = 5.5MHz, f = ±50kHz, Peak Separation = 260kHz)
Amplifier Voltage Gain	10	Vin </= 50µVrms	-	60	-	dB
AM Rejection	1	Vin = 10µVrms, Note 1	-	40	-	dB
Input Limiting Threshold Voltage	4		-	250	-	µVrms
Recovered Audio Output Voltage	1	Vin = 10µVrms	-	1.2	-	Vrms
Output Distortion	1	Vin = 10µVrms	-	5	-	%
(V+ = 8V, fo = 10.7MHz, f = ±75kHz, Peak Separation = 550kHz)
Amplifier Voltage Gain	10	Vin </= 50µVrms	-	53	-	dB
AM Rejection	1	Vin = 10µVrms, Note 1	-	37	-	dB
Input Limiting Threshold Voltage	4		-	600	-	µVrms
Recovered Audio Output Voltage	1	Vin = 10µVrms	-	0.3	-	Vrms
Output Distortion	1	Vin = 10µVrms	-	1.4	-	%
(V+ = 12V, fo = 10.7MHz, f = ±75kHz, Peak Separation = 550kHz)
Amplifier Voltage Gain	10	Vin </= 50µVrms	-	53	-	dB
AM Rejection	1	Vin = 10µVrms, Note 1	-	45	-	dB
Input Limiting Threshold Voltage	4		-	600	-	µVrms
Recovered Audio Output Voltage	1	Vin = 10µVrms	-	0.48	-	Vrms
Output Distortion	1	Vin = 10µVrms	-	1.4	-	%

Note 1.

100% FM, 30% AM Modulation.

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