NTE NTE1747 Datasheet

NTE1747

Integrated Circuit

TV Video Processing Circuit

Description:

The NTE1747 is an integrated circuit in a 28–Lead DIP type package designed for color TV video and
chrominance signal processing circuit.

Features:

D Including Video and Chrominance Signal Processing Circuit on a Single Chip, for Compact Set

Design

D Including Circuit For Compensating Skin Color

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, V

Circuit Voltage, V
Circuit Current, I
Power Dissipation, P

CC

2,3,10,11–12,19,20,28–9

25,26,27,28,29

D

Operating Ambient Temperature Range, T
Storage Temperature Range, T

stg

opr

0V to +14.4V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–40mA to 0mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+14.4V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1200mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics

Parameter Symbol Test Conditions Min Typ Max Unit

Total Circuit Current I
Demodulation Color Difference

Output Voltage

Demodulation Color Difference

Output Voltage
ACC Characteristics ACC Rainbow 15mV
Oscillation Frequency f

f

Change with Supply Voltage Df

osc

f

Change with Ambient

osc

Temperature
Control Sensitivity b Change to Pin18 Df when V1 (8.6V) and

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

tot

e

o(max)

e

o(typ)

osc

osc/VCCVCC

Df

osc/TATA

VCC = 12V 40 54 67 mA
Rainbow 150mV

Color Max.
Rainbow 150mV

Color Typ.

Difference between Pin8 input invalid
signal & standard sample

= 12V ±20%, for VCC = 12V – – 120 Hz

= –20° to +70°C, for TA = +25°C 0 1.5 2.5 Hz/deg.

(8.2V) are applied to Pin15.

V

2

, Contrast Max.,

P–P

, Contrast Max.,

P–P

, ACC–eo Typ 0.65 0.88 1.05 times

P–P

4.6 5.3 6.0 V

1.35 1.75 2.15 V

– – ±150 H

1.9 2.5 3.2 Hz.mV

p–p

p–p

z

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

Parameter Symbol Test Conditions Min Typ Max Unit

Phase Detector µ Apply D0–changed frequency for burst

phase to Pin18.

Phase Hold Characteristics Df Df = 1 (m.b) x 100 – 1.0 1.6 deg/

APC Pull–in Range f

APC

Rainbow 150mV

measured by

P–P

changing burst frequency

Demodulation Output Ratio R/B Demodulator input 0.5V

P–P

,

f = 3.59MHz

Demodulation Output Ratio G/B Demodulator input 0.5V

P–P

,

f = 3.59MHz

Demodulation Angle <R Demodulator input 0.5V

P–P

,

f = 3.59MHz, LB = 0dg

Demodulation Angle <G Demodulator input 0.5V

P–P

,

f = 3.59MHz, LB = 0dg

Color Killer Level e

Attenuation from rainbow 150mV

k

(=0dB) to killer operation

Video Voltage Amplification A

V1

Sine wave input 0.3V

at 20kHz,

P–P

contrast max., picture min.

A

V2

Sine wave input 0.3V

at 20kHz,

P–P

contrast 75%

DC Transfer Rate T

DC

Video input 0.5V

(stair step),

P–P

APL10 % to 90%. Contrast max.
Picture min.

Differential Gain DG Video input 0.5V

(stair step),

p–p

APL10 ∼ 90%. Contrast max.
picture min.

Demodulation DC Output Voltage E

O(DC)

Input invalid signal, VCO oscillation,
demodulator outputs

DC Voltage Difference Between

Demodulation Outputs
DEO Change with Supply Volt-

age

DEO Change with Ambient

DE

X–Y

DE

X–Y/VC

C

DE

X–Y/TATA

Differential voltage of demodulator
outputs

VCC = 12V ± 20%, for VCC = 12V – 0 ±60 mV

= –20 ∼ +70°C. for TA = +25°C – 0 ±60 mV

Temperature
AIC Switching Level V

SW

f = 3.58MHz, Pin21 level when
Pin 0 = 10V

Chroma Voltage Gain G

Vchroma

Chroma/Burst 350/150mV

P–P

,

Phase 123

AIC Voltage Gain G

vAIC

Chroma/Burst 200/150mV

P–P

,

Phase 123’ color killer OFF

AIC Sensitivity S

AIC

Chroma/Burst 300/100mV

P–P

,

Phase 0 tint center
Phase Compensation Center Q
Phase Compensation Range Q
Phase Compensation Range Q
Phase Compensations Quantity Q
Phase Compensations Quantity Q
Max. Phase Compensation

Quantity

Q

Qmax1

Q

Qmax2

c1

c2
Q1
Q2

0

Chroma/Burst 150mV

P–P

Color Compensation ON 17 21.5 26 deg.

27 46 64 mV/deg

±550 ±800 – Hz

0.84 0.93 1.02 times

0.25 0.29 0.33 times

86.5 90.0 94.5 deg.

229 236 243 deg.

–35 –40 –45 dB

P–P

7.0 7.7 8.4 times

6.3 7.0 7.6 times

86.0 90.5 95.0 %

– – 5 %

7.20 7.60 8.05 V

– – 300 mV

160 260 340 mV

1.6 2.2 2.7 V

14.5 19.0 23.5 dB

0.7 1.15 1.5 V

115 123 134 deg.
100 112 124 deg.

–108 –120 –132 deg.

–18 –22.5 –28 deg.

51 59 67 deg.

–55 –63 –71 deg.

100Hz

p–p

p–p

p–p