TEA5040S Просмотр технического описания (PDF) - STMicroelectronics
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TEA5040S Datasheet PDF : 12 Pages
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TEA5040S
ELECTRICAL OPERATING CHARACTERISTICS (continued)
Symbol
Parameter
Min. Typ. Max. Unit
CATHODE CURRENTS INPUT PIN 34 (continued)
Voltage Amplitude on Cathode Currents Input for Drive Decrease
V34 Threshold 10% on Drive/cut-off
1V on Pin 38
2V on Pin 38
Voltage Amplitude on Cathode Currents Input for Brightness
V34 Decrease Threshold
1V on Pin 38
2V on Pin 38
0.7
V
1.4
V
1
V
2
V
IMPEDANCE SWITCH PIN 33)
Saturation Impedance [for 5mA] (open during lines 20, 21, 22, 23)
250
Ω
REFERENCE VOLTAGE INPUT FOR THE AVERAGE BEAM CURRENT LIMITER PIN 38
V38 Reference Voltage
I38
Input Current (V38 = 1V)
AVERAGE BEAM CURRENT FILTER PIN 36 VOLTAGE RANGE
0
5V
– 20 V
0 < V34 < 7V
RGB OUTPUTS R (PIN 25), G (PIN 28), B (PIN 31)
6
V
Inserted Levels
Low Clipping Level Referred to quasi Cut-off Inserted Level (100% = B/W
output signal at maximum contrast with 0.5V (B/W) input Y signal)
High Clipping Level Referred to quasi Cut-off Inserted Level (100% = B/W
output signal at maximum contrast with 0.5V (B/W) input Y signal)
Drive Inserted Level Referred to quasi Cut-off Inserted Level (without beam
limitation, V38 = 6V, V34 grounded)
Bandwidth (– 3dB) (TV mode and R, G, B mode)
Crosstalk for any of the 11 Inputs Pins 2-3-4-5-6-7-10-11-12-37-39 on any of
the 5 Outputs Pins 25-28-31-40-42 (range : DC to 1MHz)
Brightness
Nominal Brightness Referred to quasi Cut-off Inserted Level
(bit word ”10000” address = 0)
Total Brightness Range (100 % = W/B output signal when 0.5V (W/B) on pin
12 and max. contrast)
Maximum Brightness (100% = W/B output signal when 0.5V (W/B) on pin 12
and max. contrast)
Minimum Brightness (100% = W/B output signal when 0.5V (W/B) on pin 12
and max. contrast)
Differential Brightness between any two Channels
(TV mode, colour off, pins 10-11-12 AC grounded, 0.5 (W/B) signal on Pin
12, maximum contrast = 100% on RGB outputs)
Variation of the Differential Brightness (in the whole saturation control range
(including colour off))
Contrast : Max. Contrast Attenuation
Saturation
Max. Saturation
Max. Saturation Attenuation
Colour off Attenuation
45
%
115
%
35
%
10
MHz
– 50 dB
– 25
%
78
%
38
%
– 40
%
2
%
0.5
%
11
dB
6
dB
20
dB
40
dB
9/12
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