– 15 –
CXA2543R
Demodulation
output amplitude
ratio (NTSC)
Demodulation
output amplitude
ratio (PAL)
Demodulation
output phase
difference (PAL)
Color difference
balance
θRBN
VGBN
VRBN
θGBN
VRBP
VGBP
99
0.25
0.53
230
109
0.32
0.63
242
119
0.39
0.73
254
deg
0.33
0.65
0.40
0.75
0.47
0.85
deg
θRBP
θGBP
80
232
90
244
100
256
deg
deg
GEXCMX
4 6 dB
GEXCMN
Color difference
input color
adjustment
characteristics
MAX
Color difference
input color
adjustment
characteristics
MIN
Color difference
input balance
adjustment R
Color difference
input balance
adjustment B
–20 –15
dB
VEXCBL 0.8 1.0 1.2
GEXRMX 2 3 dB
GEXRMN
–3
–2 dB
GEXBMX
–3
–2 dB
GEXBMN
2
3
dB
Input SIG5 (VL = 150mV) to (A) and SIG2 (0dB,
3.58MHz) to (B) and change the chroma phase.
Assume the maximum amplitude at TP41 as VB,
the maximum amplitude at TP44 as VG, and the
maximum amplitude at TP46 as VR.
VRBN = VR/VB, VGBN = VG/VB
SW59 = A
Input SIG5 (VL = 150mV) to (A) and SIG2 (0dB,
3.58MHz) to (B) and change the chroma phase.
Assume the phase at which the amplitude at
TP41, TP44 and TP46 reaches a maximum as
θB, θG and θR, respectively.
θRBN = θR – θB, θGBN = θG – θB
SW59 = A
Input SIG5 (VL = 150mV) to (A) and SIG2 (0dB,
4.43MHz) to (B) and change the chroma phase.
Assume the maximum amplitude at TP41 as VB,
the maximum amplitude at TP44 as VG, and the
maximum amplitude at TP46 as VR.
VRBP = VR/VB, VGBP = VG/VB
SW59 = A
Input SIG5 (VL = 150mV) to (A) and SIG2 (0dB,
4.43MHz) to (B) and change the chroma phase.
Assume the phase at which the amplitude at
TP41, TP44 and TP46 reaches a maximum as
θB, θG and θR, respectively.
θRBP = θR – θB, θGBP = θG – θB
SW59 = A
Input SIG5 (VL = 150mV) to (A) and SIG1 (0dB,
100kHz, no burst) to (D). Assume the output
amplitude at TP41 (100kHz) when serial bus
register COLOR = 80H as VC0, when COLOR =
0H as VC2, and when SIG1 is set to -10dB and
COLOR = 0FFH as VC1.
GEXCMX = 20 log (VC1/VC0) + 10
GEXCMN = 20 log (VC2/VC0)
SW51, SW52 = A
Input SIG5 (VL = 150mV) to (A) and SIG1 (0dB,
100kHz, no burst) to (D) and (E). Assume the
output amplitude at TP41 (100kHz) as VB and
the output amplitude at TP46 (100kHz) as VR.
VEXCBL = VR/VB
SW51, SW52 = A
Input SIG5 (VL = 150mV) to (A) and SIG1 (–6dB,
100kHz, no burst) to (D) and (E). Assume the
output amplitude at TP46 (100kHz) and TP41
(100kHz) when serial bus register HUE = 80H as
VR0 and VB0, respectively, when HUE = 0FFH
as VR1 and VB1, respectively, and when HUE =
0H as VR2 and VB2, respectively.
GEXRMX = 20 log (VR1/VR0)
GEXRMN = 20 log (VR2/VR0)
GEXBMX = 20 log (VB1/VB0)
GEXBMN = 20 log (VB2/VB0)
SW51, SW52 = A
Item Symbol Conditions Min. Typ. Max. Unit
Demodulation
output phase
difference (NTSC)