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)
