CXA3572 Sony Corporation, CXA3572 Datasheet - Page 15

• Manufacturer Part Number: CXA3572
• Description: Driver/Timing Generator for Color LCD Panels
• Manufacturer: Sony Corporation

White limiter
variable amount
Black level
difference between
R, G and B
RGB and PSIG
output DC voltage
DC voltage
difference between
RGB and PSIG
PSIG-BRT variable
amount
USER-BRT
variable amount
Level difference
between PSIG-BLK
and BLK-LIM
HUE variable
amount R
HUE variable
amount B
Picture variable
amount
Color variable
amount
Item
V
Vc
VPB1
VPB2
GP1
GP2
GC1
GC2
Symbol
V
Vc
UB1
UB2
VBB
HUR1
HUR2
HUB1
HUB2
WL
B
PSIG-BRT
PSIG-BRT
Serial data
setting (HEX)
HUE 3Fh
HUE 3Fh
HUE 00h
HUE 00h
COLOR
COLOR
U-BRT
U-BRT
SLWD
PIC-G
PIC-G
FFh
00h
7Fh
00h
00h
1Fh
00h
50h
1
Set CONT = FFh, input SG2 (0.2Vp-p)
to TP22, measure the non-inverted
white limit level, and obtain the
difference from the output DC voltage.
Measure the non-inverted black level
at TP8, TP10 and TP12, and obtain
the maximum and minimum
difference between these values.
Measure the output DC level
(average voltage) at TP8, TP10,
TP12 and TP14.
Measure the output average voltage
difference at TP8, TP10 and TP14
relative to the output average
voltage at TP12.
Assume the PSIG output amplitude
when PSIG-BRT = 00h and 7Fh as
VPB1 and VPB2, respectively.
Measure the non-inverted black level
at TP12 when U-BRT = 00h and FFh
and assume the difference from the
average voltage as UB1 and UB2,
respectively.
Set BLK-LIM = 00h and measure
the difference between the inverted
and non-inverted black level at TP12
and TP14.
Set U-BRT = 80h, CONT = 80h,
COLOR = 40h, input SG4 (56mVp-p)
to TP23, input SG4 (100mVp-p) to
TP24, and assume the amplitude at
TP8 when HUE = 80h, 00h and 3Fh
as VB1, VB2 and VB3.
Similarly, assume the amplitude at
TP10 as VR1, VR2 and VR3.
Set CONT = 80h, input SG3 to
TP22, and measure the TP12
amplitude at f0 relative to the TP12
amplitude at 100kHz when PIC-G =
00h and 1Fh, respectively.
Input SG4 (160mVp-p) to TP23 and
TP24, and assume the output
amplitude at TP8 and TP10 when
COLOR = 00h, 40h and 50h as V1,
V2 and V3, respectively.
GC1 = 20 log (V1/V2)
GC2 = 20 log (V3/V2)
HUR1 = 20 log (VR2/VR1)
HUR2 = 20 log (VR2/VR1)
HUB1 = 20 log (VB2/VB1)
HUB2 = 20 log (VB2/VB1)
Measurement conditions
– 15 –
Min.
–2.5
0.3
5.8
8.5
1.0
4.5
1.4
1.5
1.5
0.5
—
—
—
—
—
—
9
10.0
Typ.
0.6
6.0
2.0
4.8
2.0
–5
–5
12
—
—
—
—
—
3
3
0
Max. Unit
300
300
300
–20
1.0
6.2
2.5
2.5
–2
–2
—
—
—
—
—
—
—
CXA3572R
Vp-p
mV
mV
mV
dB
dB
dB
V
V
V