NTE NTE704 Datasheet

NTE704

Integrated Circuit

TV Sound, IF Amp

Features & Applications:

D Exceptionally High Gain: Power Gain at 4.5Hz – 75dB typ.
D Excellent Limiting Characteristics: Input Limiting Voltage (Knee) = 300µV at 4.5MHz
D Excellent AM Rejection: > 50dB at 4.5MHz
D High Audio–Voltage Recovery: 20mV Typ at 4.5MHz, 25kHz Deviation
D Wide Frequency Capability: 100kHz to > 20MHz
D Comprehensive Circuit Functions:

IF Amplifier
AM and Noise Limiter
FM Detector
Audio PreAmplifier

Absolute Maximum Ratings

: (TA = +25°C unless otherwise specified)

Maximum Input–Signal Voltage (Between Pin1 and Pin2) ±3V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum Device Dissipation 300mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Recommended Minimum DC Supply Voltage (V

CC

) 5.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Temperature Range, T

opr

–55° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage Temperature Range, T

stg

–65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics

: (TA = +25°C unless otherwise specifid)

Parameter Symbol Test Conditions Min Typ Max Unit

Total Device Dissipation P

T

Note 1 VCC = 6V 73 90 110 mW

VCC = 7.5V 106 120 150 mW
VCC = 10V 165 190 230 mW

Voltage Gain A

f = 1Mc/s,

VCC = 6V 60 66 – dB

Note 2

VCC = 7.5V 65 70 – dB
VCC = 10V 65 71 – dB

VCC = 7.5V,

f = 4.5Mc/s 60 67 – dB

Note 2

f = 10.7Mc/s 55 60 – dB

Note 1. Total current drain may be determined by dividing PT by VCC.
Note 2. Recommended minimum DC supply voltage (V

CC

) is 5.5V. Nominal load current flowing into

Pin5 is 1.5mA at 7.5V.

Electrical Characteristics (Cont’d): (TA = +25°C unless otherwise specifid)

Parameter Symbol Test Conditions Min Typ Max Unit

Parallel Input Resistance R

IN

f = 4.5Mc/s, VCC = 7.5V – 3 – kΩ

Parallel Input Capacitance C

IN

– 7 – pF

Parallel Output Resistance R

OUT

f = 4.5Mc/s, VCC = 7.5V – 31.5 – kΩ

Parallel Output Capacitance C

OUT

– 4.2 – pF
Noise Figure NF f = 4.5Mc/s, VCC = 7.5V – 8.7 – dB
Input Limiting Voltage (Knee) V

i(lim)

f = 4.5Mc/s, VCC = 7.5V – 300 400 µV

Recovered AF V

o(af)

f = 4.5Mc/s VCC = 6V – 155 – mV

VCC = 7.5V 135 188 – mV

VCC = 10V – 220 – mV
Amplitude Modulation Rejection AMR f = 4.5Mc/s, VCC = 7.5V – 50 – dB
Discriminator Output Resistance RO(dics) f = 4.5Mc/s, VCC = 7.5V – 60 – Ω
Total Harmonic Distortion THD f = 4.5Mc/s, VCC = 7.5V – 1.8 – %

Pin Connection Diagram

(Top View)

10

9

8

5

4

3

2

7

6

1

Bypass

Input 4.5MH

Z

Primary Discrimin
Transformer/V

CC

(+)

Secondary Discrim
Transformer

Secondary Discrimin
Transformer

Primary Discrimin
Transformer

Tertiary Winding

GND

Input 4.5MH

Z

Output

4

.018 (0.45) Dia Typ

.335 (8.52) Dia Max

.115 (2.92)

.230 (5.84) Dia

.260
(6.6)
Max

.500

(12.7)

Min

.370
(9.4)
Max

1

2

3

4

5

6

7

8

9

10