KB2502 Ver la hoja de datos (PDF) - Samsung
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KB2502 Datasheet PDF : 62 Pages
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Preliminary
VIDEO AMP MERGED OSD PROCESSOR FOR MONITORS
KB2502
AC ELECTRICAL CHARACTERISTICS
(Tamb = 25 °C, VCC = 12V, VDD = VDDA = 5V, ABL input voltage = 5V, HFLB input signal = S3, load resistors =
470Ω, Vin = 0.7Vpp manually adjust video output pins 18, 21 and 24 to 4V DC for the AC test (see 11) unless
otherwise stated (see 12))
Table 6. AC Electrical Characteristics
Parameter
Contrast max. output voltage
Contrast max. output channel difference
Contrast center output voltage
Contrast center output channel difference
Contrast max. - Center attenuation
Sub contrast center output voltage
Sub contrast center output channel
difference
Sub contrast min. output voltage
Sub contrast min. output channel difference
Sub contrast max. - min. attenuation
ABL control range
R/G/B video rising time (see 7)
R/G/B video falling time (see 7)
R/G/B blank output rising time (see 7)
R/G/B blank output falling time (see 7)
R/G/B video band width (see 7, 8)
Video AMP 50MHz cross talk
Symbol
Vcff
∆ Vcff
Vc80
∆ Vc80
C
Vd80
∆ Vd80
Vd00
∆ Vd00
D
ABL
tr (video)
tf (video)
tr (blank)
tf (blank)
f (-3dB)
CT_50M
(see7, 9)
Conditions
03, 05, 06, 07 = FFH
04, 08 ~ 0C = 80H
RGB input = S1
03, 04, 08 ~ 0C = 80H
05, 06, 07 = FFH
RGB input = S1
C = 20log (Vc80/Vcff)
03 = FFH
04 ~ 0C = 80H
RGB input = S1
Value
Min Typ Max
5.0
5.7
6.4
∆ 10
-
-
2.5 2.85 3.2
∆ 10
-
-
-8
-6
-4
2.3
2.6
2.9
∆ 10
-
-
03 = FFH, 05 ~ 07: 00H 1.3
1.6
1.9
04, 08 ~ 0C = 80H
∆ 10
-
-
RGB input = S1
D = 20log (Vd00/Vcff)
-14
-12
-10
(see 15)
-12
-10
-8
03, 05 ~ 07: FFH
04, 08 ~ 0C: 80H
RGB input = S2
-
2.2
2.8
-
2.2
2.8
POR
HFLB: S4
-
6.0 12.0
-
8.0 15.0
(see 16)
175
-
-
(see 17)
-
-25
-20
Unit
Vpp
%
Vpp
%
dB
Vpp
%
Vpp
%
dB
dB
ns
ns
ns
ns
MHz
dB
Video AMP 130MHz cross talk
Absolute gain match
Gain change between amplifier
CT_130M
(see7, 9)
(see 18)
Avmatch (see 6)
Avtrack (see 7)
-
-15
-10
dB
-1
-
1
dB
-1
-
1
dB
11
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