I
2
C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS
S1D2500A01
I
2
C BUS CONTROLLED R/G/B VIDEO AMPLIFIER
28-DIP-600A
The S1D2500A01 is a very high frequency video ampli-
fier system with I
2
C Bus control used in Monitors with
high resolution up to1280
×
1024.
It contains 3 matched R/G/B video Amplifiers with OSD
interface and provides flexible interfacing to I
2
C Bus
controlled adjustment systems.
FUNCTIONS
• R/G/B Video Amplifier
• OSD Interface
• I
2
C BUS Control
• Contrast/OSD Contrast
• Brightness Control
• Cut-Off Brightness Control
• R/G/B SUB Contrast/Cut-Off Control
• Blank/Clamp Gate
• Half tone
• Brightness Uniformity
Device
S1D2500A01-D0B0
Package
28-DIP-600A
Operating Temperature
-20
°C
— +75
°C
ORDERING INFORMATION
FEATURES
• 3 - Channel R/G/B Video Amplifier, 150MHz @f-3dB
• I
2
C Bus Control Items
- Contrast Control
- SUB Contrast Control For Each Channel
- Brightness Control
- OSD Contrast Control
- Cut-off Brightness Control
- Cut-off Control For Each Channel
- Switch Registers for SBLK and Video Half Tone and
Cut-Off INT/EXT
• SUB Contrast Control Range: -11dB
• Capable of 7.0Vpp Output Swing Range
• Video/OSD High Speed Switch
• Clamp Gate With Anti OSD Sagging
• B/U (Brightness Uniformity) Interface
• Video Input Clamp, BRT Clamp
• Video & OSD Half Tone Function on OSD
Picture
(OSD Raster Selection by HS1, 2: 4 colors)
• OSD Interface, OSD BLK
• ABL
• TTL R/G/B OSD Inputs, 80MHz bandwidth
• Contrast Control Range: -38dB
• OSD Contrast Control Range: -38dB
1
S1D2500A01
I
2
C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS
BLOCK DIAGRAM
ONE (RED)
OF THREE CHANNELS
ROSD
GOSD
1
OSD
INTERFACE
OSD
RASTER
VIDEO
HALF-TONE
OSD
CONTRAST
BLK
VIDEO
OSD
SWITCH
A2
26 ROUT
CLP
+
VIDEO
CONTRAST
SUB
CONTRAST
A1
2
27
A3
gm2
RCLP
RCT
BOSD
VCC2
3
9
gm1
HALF-TONE
17
23
+
+
Cut Off
VCC3
+
22
21
GND3
BOUT
RIN
VCC1
5
6
CLP
R/G/B CUT OFF CONTROL (07/08/09H)
R/G/B DRIVE CONTROL (02/03/04H)
CLP
BLK
GND1
7
CONTRAST CONTRAL (00H)
OSD CONT CONTROL (05H)
20
BCLP
BCT
CUT OFF EXT OFFSET D3:5 (0AH)
CUT OFF INT/EXT SWITCH(0AH)
BRIGHTNESS CONTROL (01H)
GIN
8
B/U
INTERFACE
VIDEO/OSD
SWITCH
CLAMP
GATE
VIDEO
HALF-TONE
OSD RASTER
SELECT
VIDEO-HALF TONE SWITCH
D1(0AH)
15
CUT OFF BRIGHT (06H)
B/U
VI/OSD_SW
28
4
24 GOUT
25
16
GCLP
GCT
OSD RASTER COLOR
D6:7(0AH)
SOFT BLANK
D0(0AH)
CLP
18
BLANK
GATE
BIN
BLK
10
12
ABL
19
I
2
C BUS CONTROL
INTERFACE & CONTROL
14
SDA
GND(L)
11
13
SCL
2
I
2
C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS
S1D2500A01
PIN CONFIGURATION
1
2
ROSD
B/U
RCLP
28
27
GOSD
3
4
BOSD
VI/OSD_SW
RIN
ROUT
26
GCLP
GOUT
VCC3
25
24
5
S1D2500A
6
7
8
9
VCC1
23
22
21
20
GND1
GIN
VCC2
GND3
BOUT
BCLP
10
BIN
BLK
CLP
19
11
GND(L)
18
12
ABL
RCT
17
13
SCL
GCT
16
14
SDA
BCT
15
Table 1. Pin Configuration
Pin No
1
2
3
4
5
6
7
8
9
Symbol
ROSD
GOSD
BOSD
VI/OSD_SW
RIN
V
CC1
GND1
GIN
V
CC2
I/O
I
I
I
I
I
-
-
I
-
Red OSD Input
Green OSD Input
Blue OSD Input
Video or OSD Switch
Red Video Input
V
CC
(normal)
Ground1 (normal)
Green Video Input
V
CC
(normal)
Configuration
3
S1D2500A01
I
2
C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS
Table 1. Pin Configuration
Pin No
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Symbol
BIN
GND (L)
ABL
SCL
SDA
BCT
GCT
RCT
CLP
BLK
BCLP
BOUT
GND3
V
CC3
GOUT
GCLP
ROUT
RCLP
B/U
I/O
I
-
-
I/O
I/O
I
I
I
I
I
-
O
-
-
O
-
O
-
I
Blue Video Input
Ground2 (logic)
Automatic Beam Limit
Serial Clock
Serial Data
Blue Cut Off Control
Green Cut Off Control
Red Cut Off Control
Clamp Gate Signal Input
Blank Gate Signal Input
Blue Clamp Cap
Blue Video Output
Ground3 (drive part)
V
CC
(drive part)
Green Video Output
Green Clamp Cap
Red Video Output
Red Clamp Cap
Brightness Uniformity
Configuration
4
I
2
C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS
S1D2500A01
PIN DESCRIPTION
Table 2. Pin Description
Pin No
Pin Name
Schematic
Description
1
2
3
Red OSD Input
(ROSD)
Green OSD Input
(GOSD)
Blue OSD Input
(BOSD)
1.29/
1.02V
VCC
OSD input signals are in TTL
level and will be connected to
ground when switching to
video input
1.16/
0.90V
PIN 1
4
Video/OSD Switch
(VI/OSD_SW)
6V
VCC
Video/OSD switch signal is
TTL level
PIN4 = “high”, OSD input
PIN4 = “Low”, video input
PIN 4
5
8
10
Red Video Input
(RIN)
Green Video Input
(GIN)
Blue Video Input
(BIN)
VCC
MAX input video signal is
0.7 Vpp
PIN 5
6
9
V
CC1
-
V
CC2
Supply voltage
(except drive part)
5
