NTE7150 데이터 시트보기 (PDF) - NTE Electronics

부품명

상세내역

일치하는 목록

NTE7150

Integrated Circuit Video, Chroma, and Sync. Signal Processing Circuit for PAL/NTSC/SECAM System Color Televisions

NTE Electronics 

AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)

Parameter

Test Conditions

Min Typ Max Unit

TEXT/Matrix Section (Cont’d)

Blanking Output Voltage

Measure output voltage from Pin18 during 0.3 0.5 0.8

V

blanking period.

Vertical Blanking Period

50Hz

Measure vertical blanking period width.

– 23

–

H

60Hz

– 18

–

H

Horizontal Blanking Threshold

Voltage

Measure lowest voltage at Pin9 which causes 0.5 0.7 1.0

V

horizontal blanking.

Horizontal Blanking Delay Time Measure blanking–on delay time.

0.0 0.1 0.3

µs

Measure blanking–off delay time.

0.1 0.3 0.5

µs

External Blanking Threshold Current Measure minimum input current to Pin64 which 300 330 400 µA

causes blanking.

Mute Output Voltage

1.7 2.0 2.3

V

Mute Switch Threshold Voltage

4.7 5.0 5.3

V

External TEXT Input Dynamic

Range

Measure input dynamic range on Pin22, Pin23, 1.0 1.5

–

VP–P

and Pin24.

External TEXT Contrast Control

Maximum Gain

Center Gain

Input signal 3 (Vim = 0.1VP–P) to TP24. Measure 15 16 18

dB

output amplitude at Pin18 when data = 7FH,

40H, and 00H as V18. Gain = 20log (V18/0.1).

12.0

13.5

15.0

dB

Minimum Gain

–7 –4 –2

dB

External TEXT Rising Time

External TEXT Falling Time

Load capacitance is 10pF. Adjust contrast data 10 25 50

ns

so that RGB output amplitude is 1VP–P.

10 25 50

ns

External TEXT Output Delay Time

10 25 50

ns

External TEXT Switching Delay

Time

10 25 50

ns

TV/TEXT Switching Voltage

0.7 1.0 1.3

V

Crosstalk

TV → TEXT

–45 –55 –

dB

TEXT → TV

–45 –55 –

dB

External TEXT Bandwidth

12 15 20 MHz

All White Mode Output Voltage

R Output

G Output

B Output

Sync. Section

Select all–white mode by bus. Measure R, G, 3.6 3.8 4.0 VP–P

and B amplitudes during trace period.

3.5 3.7 3.9 VP–P

3.6 3.8 4.0 VP–P

Horizontal Sync Separation Level

30 35 40

%

Sync Separation Input Sensitivity

10 18 25

µA

Horizontal Free Running Frequency measure H.out frequency when no sync input 15.50 15.62 15.75 kHz

and no FBP input.

AFC1 Pull–In Range

High

Low

Center frequency is fH = 15.625Hz

500 750 1000 Hz

–500 –750 –1000 Hz

Horizontal Oscillation Frequency

Control Range

14.70 15.62 16.90 Hz

Horizontal Oscillation Frequency

Control Sensitivity

2.0 2.3 2.6 kHz/V

AFC1 Detection Current

250 350 450 µA

Share Link: