MAX7456EUI+ Maxim Integrated Products, MAX7456EUI+ Datasheet - Page 35
MAX7456EUI+
Manufacturer Part Number
MAX7456EUI+
Description
IC ON-SCREEN DISPLAY 28-TSSOP
Manufacturer
Maxim Integrated Products
Type
OSD (On-Screen Display) Video Generatorr
Datasheet
1.MAX7456EUI.pdf
(44 pages)
Specifications of MAX7456EUI+
Applications
Security Systems, Video Routing
Mounting Type
Surface Mount
Package / Case
28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
Current - Supply
58mA
Voltage - Supply
4.75 V ~ 5.25 V
Operating Temperature
-40°C ~ 85°C
Interface
SPI Serial
Display Type
OSD
Digits Or Characters
256 Characters
Maximum Clock Frequency
27 MHz
Operating Supply Voltage
5 V
Maximum Power Dissipation
2162 mW
Maximum Operating Temperature
+ 85 C
Maximum Supply Current
25 mA
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Configuration
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Write address = 0CH, read address = 8CH.
Read/write access: unrestricted.
Address = 10H + row number; write address = 10H
through 1FH, read address = 90H through 9FH,
read/write access: unrestricted.
5, 4, 3
2, 1, 0
BIT
7, 6
BIT
7–4
3, 2
1, 0
OSD Insertion Mux Register (OSDM)
DEFAULT
DEFAULT
0000
011
011
______________________________________________________________________________________
00
00
01
Row N Brightness Register
Single-Channel Monochrome On-Screen
Don’t Care
OSD Rise and Fall Time—typical transition times between adjacent OSD pixels
000: 20ns (maximum sharpness/maximum crosscolor artifacts )
001: 30ns
010: 35ns
011: 60ns
100: 80ns
101: 110ns (minimum sharpness/minimum crosscolor artifacts)
OSD Insertion Mux Switching Time–typical transition times between input video and OSD pixels
000: 30ns (maximum sharpness/maximum crosscolor artifacts )
001: 35ns
010: 50ns
011: 75ns
100: 100ns
101: 120ns (minimum sharpness/minimum crosscolor artifacts)
Don’t Care
Character Black Level —All the characters in row N use these brightness levels for the black pixel,
in % of OSD white level.
00 = 0%
01 = 10%
10 = 20%
11 = 30%
Character White Level —All the characters in row N use these brightness levels for the white pixel,
in % of OSD white level.
00 = 120%
01 = 100%
10 = 90%
11 = 80%
Display with Integrated EEPROM
(RB0–RB15)
Top row number is 0. Bottom row number is 13 in NTSC
mode and 15 in PAL mode (see Figure 23).
FUNCTION
FUNCTION
35