NTE843 データシートの表示（PDF） - NTE Electronics

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NTE843

Integrated Circuit TV Video IF Phase Locked Loop (PLL) Synchronous Detector

NTE Electronics 

Electrical Characteristics: (V+ = 12Vdc, fc = 45MHz, TA = +25°C unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Supply Current

Video–Output Voltage

Noise–Inversion Offset Voltage

Sound IF Take–Off Output

AFT Output Voltage

Oscillator Pull–In Range

I8 + I10

– 60 80 mA

V10 Zero Carrier Bias Adjust

––7V

V10 Referenced to Zero Carrier Level –0.2 0.3 +0.8 V

V9 V10 = 7V

– 7.7 – V

V12 AFT Defeat Switch Closed

2.4 3.0 3.6 V

– 3 – MHz

Oscillator Hold–In Range

– 6 – MHz

Detector Conversion Gain

26 30 – dB

Video Bandwidth

– 9 – MHz

Carrier Rejection at Video

Video IF Parallel Input Impedance

Resistance (Pin4)

Video IF Parallel Input Impedance

Capacitance (Pin4)

Sound Take–Off Output Resistance (Pin9)

Video Output Resistance (Pin10)

fc = 45MHz

2fc = 90MHz

RP

CP

RO 1MHz

RO 1MHz

– 30 – dB

– 40 – dB

– 4 – kΩ

– 5 – pF

– 50 – Ω

– 50 – Ω

Pin Connection Diagram

Limiter Tuning 1

Limiter Tuning 2

GND (V) 3

Video IF Input 4

APC Filter 5

VCO Tuning 6

VCO Tuning 7

V (+) 8

16 AFT Tuning

15 AFT Tuning

14 AFT Defeat

13 GND (V)

12 AFT Output

11 Zero–Carrier Bias Adjust

10 Video Output (Negative Going Sync)

9 Sound Take–Off Output

16

9

1

8

.870 (22.0)

Max

.200 (5.08)

Max

.260 (6.6)

Max

.100 (2.54)

.700 (17.78)

.099 (2.5) Min

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