參數(shù)資料
型號(hào)： LV4124W
文件頁(yè)數(shù)： 5/21頁(yè)
文件大?。?/td> 277K
代理商： LV4124W
No.6000-5/21
LV4124W
Continued from preceding page
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
[Chrominance Signal System]
Color adjustment
characteristics (maximum)
GCOLMX
+4
+6
dB
Color adjustment
characteristics (minimum)
GCOLMN
–20
–15
dB
Tint adjustment range
(maximum)
TNTMX
–30
–40
deg
Tint adjustment range
(minimum)
TNTMN
30
40
deg
ACKN
NTSC
–36
30
dB
Killer operating input level
ACKP
PAL
–33
–27
dB
VRBN
0.53
0.63
0.73
–
Demodulator output
amplitude ratio (NTSC)
VGBN
0.25
0.32
0.39
–
θ
RBN
99
109
119
deg
Demodulator output phase
difference (NTSC)
θ
GBN
230
242
254
deg
VRBP
0.65
0.75
0.85
–
Demodulator output
amplitude ratio (PAL)
VGBP
0.33
0.40
0.47
–
θ
RBP
80
90
100
deg
Demodulator output phase
difference (PAL)
θ
GBP
232
244
256
deg
Input SIG5 (VL = 150 mV) to (A), and input SIG2 (0 dB,
burst/chrominance phase = 180°) to (B).
Let V0, V1, and V2 be the chrominance signal amplitude
when COL = 128, COL = 255, and COL = 0, respectively.
Calculate GCOLMX = 20log (V1/V0), and GCOLMN = 20log
(V2/V0).
Input SIG5 (VL = 150 mV) to (A), and input SIG2 (0 dB, with
a variable burst/chrominance phase) to (B).
Let
θ
0,
θ
1, and
θ
2 be the phases when the T41 output
amplitude is minimum when TINT = 128, TINT = 255, and
TINT = 0, respectively.
Calculate TNTMX =
θ
1 –
θ
0, and TNTMN =
θ
2 –
θ
0.
Input SIG5 (VL = 150 mV) to (A), and to (B),
input SIG2 (with a variable level,
burst/chrominance phase = 180°, and also
burst/chrominance phase = ±135°).
Measure the T41 output amplitude.
Gradually lower the SIG3 level (amplitude) until
the killer function operates and measure that
level.
Input SIG5 (VL = 150 mV) to (A), and input SIG3 (0 dB) to
(B).
Modify the chrominance signal phase, let VB be the
maximum amplitude of the T41 chrominance demodulated
signal, let VG be the maximum amplitude of the T44
chrominance demodulated signal, and let VR be the
maximum amplitude of the T46 chrominance demodulated
signal
Calculate VRBN = VR/VB and VGBN = VG/VB.
Input SIG5 (VL = 150 mV) to (A), and input SIG3 (0 dB) to
(B).
Modify the chrominance signal phase, let
θ
B be the phase
at the maximum amplitude of the T41 chrominance
demodulated signal, let
θ
G be the phase at the maximum
amplitude of the T44 chrominance demodulated signal, and
let
θ
R be the phase at the maximum amplitude of the T46
chrominance demodulated signal.
Calculate
θ
RBN =
θ
R –
θ
B and
θ
GBN =
θ
G –
θ
B.
Input SIG5 (VL = 150 mV) to (A), and input SIG3 (0 dB) to
(B).
Modify the chrominance signal phase, let VB be the
maximum amplitude of the T41 chrominance demodulated
signal, let VG be the maximum amplitude of the T44
chrominance demodulated signal, and let VR be the
maximum amplitude of the T46 chrominance demodulated
signal
Calculate VRBP = VR/VB and VGBP = VG/VB.
Input SIG5 (VL = 150 mV) to (A), and input SIG3 (0 dB) to
(B).
Modify the chrominance signal phase, let
θ
B be the phase
at the maximum amplitude of the T41 chrominance
demodulated signal, let
θ
G be the phase at the maximum
amplitude of the T44 chrominance demodulated signal, and
let
θ
R be the phase at the maximum amplitude of the T46
chrominance demodulated signal.
Calculate
θ
RBP =
θ
R –
θ
B and
θ
GBP =
θ
G –
θ
B.
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