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