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PDF CXA3572 Data sheet ( Hoja de datos )
| Número de pieza | CXA3572 | |
| Descripción | Driver/Timing Generator for Color LCD Panels | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXA3572R
Driver/Timing Generator for Color LCD Panels
Description
The CXA3572R is an IC designed to drive the color
LCD panel ACX306/312.
This IC greatly reduces the number of peripheral
circuits and parts by incorporating a RGB driver and
timing generator for video signals and a VCO onto a
single chip. This chip has a built-in serial interface
circuit and electronic attenuators which allow various
settings to be performed by microcomputer control,
etc.
Features
• Color LCD panel ACX306/312 driver
• Supports NTSC and PAL systems
• Supports Y/color difference and RGB inputs
• Supports OSD input
• Power saving function (clock stopped)
• Various setting control using a serial interface
circuit (asynchronous type)
• Electronic attenuators (D/A converter)
• VCO (no external oscillator circuit)
• LPF (fc variable)
• COMMON and PSIG output circuits
• Sharpness function
• 2-point γ correction circuit
• R, G, B signal delay time adjustment circuit
• Sync separation circuit
• D/A output pin (0 to 3V, 8 level output)
• Output polarity inversion circuit
• Supports AC drive for LCD panel during no signal
Applications
Compact LCD monitors, etc.
48 pin LQFP (Plastic)
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
VCC1
5.5
V
VCC2
15
V
VDD 4.6 V
• Analog input pin voltage
VINA1 (Pins 18, 19, 20, 22, 23, 24 and 25)
GND – 0.3 to VCC1 + 0.3 V
VINA2 (Pin 16)
GND – 0.3 to VCC2 + 0.3 V
• Digital input pin voltage
VIND (Pins 34 and 35) VSS – 0.3 to +5.5 V
• Common input pin voltage
VINAD (Pins 31, 32 and 33)
GND, VSS – 0.3 to +5.5 V
• Operating temperature Topr –15 to +75 °C
• Storage temperature Tstg –55 to +150 °C
• Allowable power dissipation (Ta ≤ 25°C)
PD 600 mW
Operating Conditions
• Supply voltage VCC1 – GND1 2.7 to 3.6
VCC2 – GND2 11.0 to 14.0
VDD – VSS
2.7 to 3.6
V
V
V
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E00Y05A11-PS
1 page  
CXA3572R
Analog Block Pin Description
Pin
No.
Symbol
5 GND2
Pin
voltage
—
Equivalent circuit
Vcc2
6 COM
—6
100k
GND2
125k
5k
Description
Analog 12.0V GND.
COMMON voltage output.
The output voltage is controlled by serial
communication.
7 B DC DET
9
11
R DC DET
G DC DET
3.0V
15 PSIG DC DET
Vcc2
7
9
11
15
GND2
4K 5k
10k
Smoothing capacitor connection for the
feedback circuit of R, G, B and PSIG
output signal DC level control.
Connect a low-leakage capacitor.
8 B OUT
10 R OUT
12 G OUT
14 PSIG OUT
—
Vcc2
8
10
12
14
GND2
100k
13 VCC2
12.0V
10 500
10 5k
16 SIG.C
VCC/2
Vcc2
16
GND2
200k
200k
10p
17 NC
—
R, G, B and PSIG signal outputs.
The DC level is controlled to match the
SIG.C pin voltage.
Low output in power saving mode.
Analog 12.0V power supply.
R, G, B and PSIG output DC voltage
setting.
Connect a 0.01µF capacitor between
this pin and GND1.
When using a SIG.C of other than
Vcc2/2, input the SIG.C voltage from an
external source.
No connection.
–5–
5 Page 
CXA3572R
Electrical Characteristics — DC Characteristics
Analog Block
Item
Current consumption 1
(Y/color difference input)
Current consumption 2
(Y/color difference input)
Current consumption 1
(RGB input)
Current consumption 2
(RGB input)
Current consumption 1
(PS0 = 0)
Current consumption 2
(PS0 = 0)
Current consumption 1
(SYNC GEN = 0)
Current consumption 2
(SYNC GEN = 0)
B DC DET pin voltage
R DC DET pin voltage
G DC DET pin voltage
PSIG DC DET pin voltage
SIG.C pin voltage
G/Y pin voltage
R/R-Y pin voltage 1
R/R-Y pin voltage 2
B/B-Y pin voltage 1
B/B-Y pin voltage 2
SYNC IN pin voltage
REF pin voltage
(power saving mode)
FILTER pin voltage
OSD R, G, B input voltage
SIG. C input voltage
(Ta = 25°C, VCC1 = VDD = 3.0V, VCC2 = 12.0V, see page 10 for the DAC)
Symbol Measurement conditions Min. Typ. Max. Unit
I1
Measure the inflow current
to Pin 21.
16
34
50
I2
Measure the inflow current
to Pin 13.
1.0
3.4
10
IRGB1
Measure the inflow current
to Pin 21.
12
28
42
IRGB2
Measure the inflow current
to Pin 13.
1.0
3.4
IPS01
Measure the inflow current
to Pin 21.
—
7
10
mA
11
IPS02
Measure the inflow current
to Pin 13.
—
0.3
1.0
ISG1
Measure the inflow current
to Pin 21.
—
14
27
ISG2
Measure the inflow current
to Pin 13.
—
0.3
1.0
V7 3.0
V9 3.0
V11 3.0
V15 3.0
V16 6.0
V22 1.8
V23
During Y/color difference
input
2.0
V23 During RGB input
V24
During Y/color difference
input
1.8
V
2.0
V24 During RGB input
1.8
V25 During no input
1.1
V27 0.2
V28
VSIG.C
1.2
GND
VCC1
5.0 6.5
– 11 –
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CXA3572.PDF ] | |
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