Sanyo EP58B - Manual (Page 6)

LC74986NWF
9 10 SANYO TV . VCR SANYO TV . VCR
LA7605M
A2C
PLL
27k
Ω
100k
Ω 100k
Ω
100
Ω
100P
75
Ω
100P
+ + 0.01
µ F(M)
0.1
µ F
10
µ F
1 µ F
1 µ F
0.01 µ F
100 µ F
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
100
Ω
AFT R IN
75
Ω
0.01
µ F(M)
G IN
75
Ω
0.01
µ F(M)
15000P (M)
B IN
10k
Ω
30k
Ω
1k
Ω
1k Ω
1k
Ω
10k
Ω
3.3k Ω
4.7k Ω
1k
Ω 75
Ω
680k
Ω
1k Ω
1k Ω
30k Ω
330 Ω
600 Ω
1k
Ω 24k
Ω
24k
Ω
FB IN R OUT G OUT B OUT
+
10
µ F
1 µ F
0.01
µ F
+
10
µ F
0.01
µ F
+
+
+
+
+
+ + +
+
+
+
10
µ F
0.1 µ F
0.47 µ F
0.1 µ F 1 µ F 100
µ F
0.01
µ F
0.47
µ F
0.47 µ F
10 µ F
0.01 µ F
0.01 µ F
1000P
1000P
10P
1 µ F 1 µ F 2.2
µ F
0.47
µ F
0.047
µ P(M) 16P
1000P
100
Ω
+
FSC OUT
VS
HS
BGP
VCC 5V
GND
GND
(METUL FILM)
REF
CR_IN
SVO
CB_IN
INT-V IN
(S-C:IN) EXT-V
IN
VIDEO
OUT
EXT AUDIO INT
S CARRIER OUT
AUDIO OUTPUT
(M)
V/C
GND
VCO
PM OUT
RF AGC
IF IN
0.022 µ F
0.01 µ F
1
TRAP VIDEO AMP
VIDEO DIT
SPLL
BPF
FM DET
VIF
SW
CD VOL
IF AGC
RF AGC
AFT
BUS DCS CL AMP IRIVE/OUT-OFF C_SYNC
C_SYNC OUT
PSC
VER
OUT
CONTRAST ERIGHT
COLOR
CLAMP
BPF
LIM AMP
OSD FIX GAIN ERIGHT
OSD SW
RGB MATRIX
VER
C/D
AFC1
HOR
VCO
IH DELAY
HOR
OUT
+ LPF
ALC
CLAMP
DC ADS
SW CLAMP
APC2
APC1
CLMP CLMP
VIDEO
SW
BLACK STRETCH
SYNC SEP
DC REST
VCO
VXD DOD
TINT
PAL
SW
DEMO AOC
BPF (ON/OFF) SW
HOR
C/D
PHASE SHIFTER
1/256
HOR
VCC VER
SEP
PEAKING
CORING
DELAY
LINE
TRAP
Input Processing
14
13
17
18
19
25
26
4
31 17 35 5 142 143 141 140 81
SHARPNESS
COLOR
TINT
RGB Y Cb Cr
Y Cb Cr RGB
Y Cb Cr
Y Cb Cr
Data
Select
Select
Select
Scaling Processing
Output Processing
OSD
MIX
R G B
DCLK0 DEH0 DEV0 HS0 VS0 BOUT_2[7:0]*
1
GOUT_2[7:0]*
1
ROUT_2[7:0]*
1
BOUT[7:0] GOUT[7:0] ROUT[7:0]
VPB3[7:0]*
1
VPBEN VPB2[7:0]*
1
VPB1[7:0]*
1
VP
A3[7:0]
VP
A2[7:0]
VP
A1[7:0] VPBCK VPBV*
2
VPBH CLKI DEHI DEVI HSI VSI
Output Timing
Input Timing
CLKIEN
SDA
SCL
AICS* 2
AIDA
AIC
XTAL
DCLKI
100 92 82
107 99 89
128 118 110
135 125 117
34 38 39 40 41
100 92 82
107 99 89
64 54 44
71 61 51
24 24
8
B
8
8 8
24 24
8 G
8
R
Overview Overview
Functions
The LC75986NWF is a video signal processing IC that performs resolution conversion, IP conversion, and image quality corrections
without requiring external memory. It can convert and display a wide variety of video signal formats for display on a flat panel
display. In particular, its image quality correction function adjusts the image quality to be optimal for display on a flat panel.
Its OSD function can display characters with a size optimal for the panel used. A video signal processing system for flat panel
displays can be implemented easily by combining this IC with video converter, A/D converter, and microcontroller ICs and an
LCD panel.
Scan Converter IC for Flat Panel Displays
NTSC/PAL and DTV (480i/480p) inputs: YCbCr digital 8-bit signal inputs
Up to WXGA progressive scan input: RGB digital 8-bit signal input
Independent enlargement in the horizontal and vertical directions. Reduction in the horizontal direction is also provided.
Interlaced to progressive scan conversion
Image quality adjustment function (sharpness, color, tint, black stretch, brightness, contrast, white balance, black balance)
correction circuit (Look-up table system. Common characteristics for each 8-bit RGB color can be programmed.)
Single RGB 24-bit or 18-bit signal output or dual RGB 48-bit or 36-bit signal output (with built-in bit depth simulation and
conversion functions)
No external frame memory required (Input and output have the same frame period)
Built-in OSD function (On-chip 510-character 8-color, font RAM 8 characters)
I
2 C bus interface (The OSD function can also be controlled from a 3-wire bus)
Supply voltage: Dual-voltage supply - I/O: 3.3 V, core: 2.5 V
Maximum operating frequency: 85 MHz
Package: SQFP144 (20 20)
Block Diagram
Block Diagram
Horizontal and vertical direction enlargement
Horizontal direction reduction
External
voltage
signals
Bit depth conversion
processing
correction
White balance
Contrast, Black balance
Brightness
Black
stretch
*1, *2: Register selectable
Video Signal Processor
Functions and Features
The LA7605M is a flat panel display color TV signal-processing I 2 C bus controller IC that supports all the broadcast standards used
worldwide.
VIF/SIF bloc
· Adjustment-free VCO, 4-mode audio trap/audio bandpass filter, buzz canceller
· RF AGC/video level
Single crystal color system: PAL and NTSC
Black stretch, sharpness control with coring on/off control, built-in variable Y system filters (Y-DL and chrominance trap)
Chrominance bandpass filter, demodulation ratio/angle control, support for CbCr input
VS, HS, and BGP outputs, C-sync output, FSC output
Dynamic contrast control
VIF, SIF, video, and sync separator circuits with superlative weak field and nonstandard signal characteristics
Adjustment-free VIF/SIF, audio trap, and audio bandpass filters
Horizontal resonator-less adjustment-free system
Supply voltage: VCC: 5 V
Package: QIP80E (14 20)