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PDF AN2546FH-A Data sheet ( Hoja de datos )
| Número de pieza | AN2546FH-A | |
| Descripción | Automotive LCD TV signal processor IC | |
| Fabricantes | Panasonic Semiconductor | |
| Logotipo |  |
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ICs for TV
AN2546FH-A
Automotive LCD TV signal processor IC
I Overview
The AN2546FH-A is a video signal processing IC
built-in a 5-volt power-supply source driver for TFT color
LCD (normally white type), and it supports the NTSC,
PAL and PAL-M/PAL-N systems. The main circuitry of
this IC includes video-signal processing circuit, color sig-
nal processing circuit, interface circuit, synchronizing cir-
cuit and many color quality adjusting circuits. This IC con-
verts the composite video signal or separated Y/C signal
or RGB signals into RGB signals available for TFT color
LCD.
I Features
• Supply voltage: 3 V/5 V/7.5 V
• Built-in a 5-volt power-supply source driver for TFT
type LCD
• Low consumption power (typ. 200 mW)
• Supporting the NTSC, PAL, PAL-M and PAL-N
• Supporting composite, component and color differen-
tial signal input
• Video signal analog RGB (2 systems)
One is for OSD (analog/digital).
• Each mode setting is possible with I2C Bus control.
• Electronic volume (D/A converter) built in
• Contrast/Brightness/γ correction circuit built in
• Horizontal and vertical display position adjustment are
possible by serial control.
• Improvement of weak electric field characteristics
(Compared to AN2526FH/AN2526NFH: −5 dB)
• At reverse stop, built-in output gain down function
I Applications
• 4 inches to 7 inches middle size TFT LCD equipment
of normally white, of such as an in-car TV and an LCD
monitor for car navigation system.
12.00±0.20
10.00±0.20
48 33
49 32
Unit: mm
64
1
(1.25)
17
0.50
16
+0.1
0.18–0.05
(1.00)
Seating plane
0° to 10°
0.50±0.20
QFP064-P-1010
Note) The package of this product will be changed
to lead-free type (QFP064-P-1010A). See the
new package dimensions section later of this
datasheet.
Publication date: February 2002
SDB00081AEB
1
1 page  
AN2546FH-A
I Pin Descriptions
Pin No.
Description
Pin No.
1 Crystal oscillator connecting pin 3 (PAL-N) 33
2 R-Y output pin
34
3 B-Y output pin
35
4 R-Y input pin
36
5 B-Y input pin
37
6
Signal processing system power supply
38
(VCC1 = 5.0 V)
39
7 Internal reference power supply detection 40
pin (2.0 V)
41
8 R-ch. analog signal input pin
42
9 G-ch. analog signal input pin
43
10 B-ch. analog signal input pin
44
11 R-ch. clamp detection pin
12 G-ch. clamp detection pin
45
13 B-ch. clamp detection pin
46
14 R-ch. OSD input pin
47
15 G-ch. OSD input pin
48
16 B-ch. OSD input pin
49
17 Character picking up pulse input pin
50
18 Side black control signal input pin
51
19 B-ch. output pin
52
20
B-ch. output DC feedback detection pin
53
21 G-ch. output pin
54
22
G-ch. output DC feedback detection pin
55
23 GND 1
56
24
Drive output reference voltage input pin
57
25 Drive system power supply (VCC2 = 7.5 V) 58
26 R-ch. output pin
27
R-ch. output DC feedback detection pin
59
28 Common reverse signal output pin
60
29 Pulse output system power supply
(VCC3 = 3.0 V)
61
62
30 PWM output pin
63
31 Vertical synchronous signal output pin 64
32 Horizontal synchronous signal output pin
Description
Sand castle pulse output pin
Composite synchronous signal output pin
Vertical synchronous signal input pin
1H reverse signal input pin
Clock-system GND (VSS)
Analog imposing control signal input pin
Horizontal clock detection pin
Clock-system power supply (3.0 V)
GND 2
AFC loop filter connecting pin
VCO frequency adjustment pin
Synchronous system power supply
(VCC1 = 5.0 V)
NAVI signal synchronous signal input pin
Synchronous signal input pin
Serial data shift clock input pin
Serial data input pin
Power-on reset detection pin
Common DC adjustment voltage output pin
DAC output pin
Luminance signal input pin
Chrominance signal trap filter connection pin 1
Chrominance signal trap filter connection pin 2
Y-system clamp detection pin
ACC detection pin
Chrominance signal input pin
Chrominance processing system power supply
(VCC1 = 5.0 V)
GND 3
Chrominance killer detection pin
APC detection pin
Subcarrier output pin
Crystal oscillator connecting pin 1 (NTSC)
Crystal oscillator connecting pin 2
(PAL/PAL-M)
SDB00081AEB
5
5 Page 
AN2546FH-A
I Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
10 Pin 6
VCC1
Description
B-in 1:
Analog B signal input
5 kΩ
10
Voltage · Waveform
Analog B signal
0.7 V[p-p]
typ.
Pin 7
VREF
Pin 23
GND
11
Pin 6 R-ch. det.:
1 kΩ 1 kΩVCC1 R-ch. clamping capacitor
coupling pin
11
12
500 Ω
1 kΩ
HSS
Pin 23
GND
Pin 6
1 kΩVCC1
G-ch. det.:
G-ch. clamping capacitor
coupling pin
12
13
500 Ω
1 kΩ
HSS
Pin 23
GND
Pin 6
1 kΩVCC1
B-ch. det.:
B-ch. clamping capacitor
coupling pin
500 Ω
13
HSS
Pin 23
GND
SDB00081AEB
11
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet AN2546FH-A.PDF ] | |
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