參數(shù)資料
型號(hào)： MAX7456EUI+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 37/44頁(yè)
文件大?。?/td> 0K
描述： IC ON-SCREEN DISPLAY 28-TSSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 50
類(lèi)型： OSD（屏幕顯示）視頻發(fā)生器
應(yīng)用： 安全系統(tǒng)，視頻路由
安裝類(lèi)型： 表面貼裝
封裝/外殼： 28-SOIC（0.173"，4.40mm 寬）裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 28-TSSOP 裸露焊盤(pán)
包裝： 管件
產(chǎn)品目錄頁(yè)面： 1424 (CN2011-ZH PDF)
Single-Channel Monochrome On-Screen
Display with Integrated EEPROM
Multiple OSDs with
Common Clock Application
The MAX7456 provides a TTL clock output (CLKOUT)
capable of driving one CLKIN pin of another MAX7456.
Two or more MAX7456 parts can be driven using an
external clock driver. This arrangement reduces the
system cost by having only one crystal on one
MAX7456 that supplies the clock signal to multiple
MAX7456 parts (Figure 25).
Selecting a Clock Crystal
Choose a 27MHz parallel resonant, fundamental mode
crystal. No external load capacitors are needed. All
capacitors required for the Pierce oscillator are includ-
ed on-chip.
Power Supply and Bypassing
The MAX7456 operates from three independent supply
lines. Each supply must be within a +4.75V to +5.25V
voltage range. Separate the digital power supply from
the analog and video-driver supply lines to prevent
high-frequency digital noise that may couple onto the
video output. All three supplies should be at the same
DC voltage. Bypass each supply with a 0.1F capacitor
to ground very close to the IC pins. There are no
power-supply sequencing requirements for the device.
Layout Concerns
For best performance, make the VIN and VOUT traces
as short as possible. Place all AC-coupling capacitors
and 75
Ω termination resistors close to the device with
the resistors terminated to the solid analog ground
plane. Since the MAX7456 TSSOP package has an
exposed pad (EP) underneath, do not run traces under
the package to avoid possible short circuits. Refer to
the MAX7456 EV kit for an example of PCB layout.
To aid heat dissipation, the EP should be connected to
a similarly sized pad on the component side of the
PCB. This pad should be connected through to the sol-
der-side copper by several plated holes to conduct
heat away from the device. The solder-side copper pad
area should be larger than the EP area. It is recom-
mended that the EP be connected to ground, but it is
not required. Do not use EP as the only ground connec-
tion for the device.
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
N.C.
VOUT
SAG
PVDD
PGND
N.C.
VIN
AVDD
AGND
RESET
HSYNC
VSYNC
N.C.
LOS
SDOUT
SCLK
SDIN
CS
CLKOUT
XFB
CLKIN
DGND
DVDD
N.C.
TSSOP
TOP VIEW
MAX7456
+
Pin Configuration
Chip Information
PROCESS: BiCMOS
MAX7456
42
Maxim Integrated
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX7456EUI/GH9 制造商:Maxim Integrated Products 功能描述:SINGLE-CHANNEL MONOCHROME ON-SCREEN DISPLAY - Rail/Tube
MAX7456EUI+ 功能描述:視頻 IC Monochrome On Scrn Display Generator RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
MAX7456EUI+T 功能描述:視頻 IC Monochrome On Scrn Display Generator RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
MAX7456EUI+W 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX7456EVKIT 功能描述:顯示開(kāi)發(fā)工具 RoHS:否 制造商:4D Systems 產(chǎn)品:4Display Shields 工具用于評(píng)估:?OLED-160-G1, ?OLED-160-G2 接口類(lèi)型:Serial 工作電源電壓:5 V
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