NTE NTE7008 Datasheet

NTE7008

Integrated Circuit

Color TV/Video, Chroma, Deflection Circuit

Description:

The NTE7008 is a small–sized multifunctional IC in a 30–Lead DIP type package containing the “video,
chroma, deflection” circuit of a NTSC color TV. Besides being small–sized, this device requires fewer
adjustments and a reduced number of external components. The NTE7008 can be u sed in conjunction
with the NTE1728 f or “ VIF–SIF” u se o r t he N TE1773, N TE1797, N TE1855, N TE7085 f or “ vertical o utput”
use to perform all color TV signal processing functions.

The polarity of the quadratic differentiation circuit input of the NTE7008 is inverted to facilitate easy
connection of a Tr, L, C, R–used circuit for higher picture quality to the quadratic differentiation circuit
input of the video circuit. The NTE7008 contains a wide–band video circuit (10MHz) and is suited for
use in AV or large–sized sets.

Features:

D Wide–Band Video Circuit (10MHz)
D Small–Sized Package
D Few External Components Required
D Fewer Adjustments Required, No Adjustment of the Following Functions:

S Chroma VCO (APC)
S Horizontal OSC H–Hold
S Vertical OSC H–Hold

D Multifunctional

Absolute Maximum Ratings:

Maximum Supply Voltage, V
Maximum Supply Current, I
Allowable Power Dissipation (T
Operating Temperature Range, T
Storage Temperature Range, T

Recommended Operating Conditions:

Recommended Supply Voltage, V
Recommended Supply Current, I
Operating Voltage Range, V

(TA = +25°C unless otherwise specified)

max 14V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

max 15mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22

≤ +65°C), Pdmax 1100mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A

opr

stg

–20° to +85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

(TA = +25°C unless otherwise specified)

16

22

op 9 to 14V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

Operating Current Range, I22op 8.5 to 15mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics: (TA = +25°C, VCC = V16 = 12V, ICC = I22 = 10mA unless otherwise

specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Circuit Current I

16

Quiescent 40 53 75 mA

Deflection Block

Horizontal Supply Voltage V
Sync Separation Input DC Level V
Vertical Free–Running Frequency f

f

Z22
S.S
V1
V2

Vertical Blanking Pulse Width PW V.blk 19.25/f
Vertical Output Pulse Width PW V.out 10.25/f
Vertical Drive Stage Voltage Gain G
Vertical Output Pulse Start Voltage V
Vertical Pull–In Start Voltage V

V
cds
vps

8.2 8.7 9.2 V

9.0 9.3 9.6 V
fH/296.5 Hz
fH/224.5 Hz

H
H

sec
sec

13.0 16.2 19.0 dB

– – 4.0 V
– – 4.0 V

Vertical Blanking Pulse Peak Value VV.blk – 10 – V
Horizontal Free–Running Frequency f
Horizontal OSC Frequency Change

∆fH (V) fH (8V) – fH (7V) –10 0 +10 Hz

H

Diff bet. 15.734kHz and hor. output freq. –70 30 130 Hz

with Line Frequency

Horizontal OSC Frequency Change

∆fH/∆T TA = –10° to +60°C –1.5 – +1.5 Hz/°C

with Ambient Temperature
Horizontal Output Pulse Width PW H.out 23.5 24.5 25.5 µs
Horizontal Sync Pull–In Range fH pull Deviation from 15.734kHz ±400 – – Hz
Horizontal Output Pulse Start Voltage VH pos – – 5.5 V
Horizontal Free–Running Frequency

∆f

HT

5 sec to 30 min after power ON –50 –10 +30 Hz

Secular Drift
Horizontal Blanking Threshold Level VH blk 11 – – V
Horizontal Output Drive Current I

H.O

Horizontal OSC Control Sensitivity Bf
Hold–Down Start Input Voltage V

HD

Reference Value – 236 – Hz/µs

H

2.0 – 4.5 mA

0.55 0.65 0.75 V

Video Block

Video Tone Voltage Gain G tone f = 2MHz, video tone VR: 12V 7.0 9.6 12.0 dB
Video Voltage Gain A
Contrast Control Center e
Contrast Variable Range ∆e

f = 100kHz, video tone VR: 12V 12 15 18 dB

V

f = 100kHz, input: 100mV

o

f = 100kHz 16 18 20 dB

o

P–P

0.2 0.3 0.4 V

P–P

Bright Control Characteristic BR1 Quiescent, bright VR: 3V 8 – – V

BR2 Quiescent, bright VR: 6V 5.8 6.3 6.8 V

BR3 Quiescent, bright VR: 9V – – 4.5 V
Frequency Characteristic f – 10 – MHz
DC Transmission R

DC

Stair step signal – 100 – %