參數資料
型號: MAX7456EVKIT+
廠商: Maxim Integrated Products
文件頁數: 4/44頁
文件大小: 0K
描述: KIT EVAL FOR MAX7456
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1
主要目的: 視頻,屏幕顯示器(OSD)
嵌入式: 是,MCU,16 位
已用 IC / 零件: MAX7456
主要屬性: NTSC/PAL 單通道單色屏幕顯示器(OSD),帶集成視頻驅動器
次要屬性: GUI,SPI 接口
已供物品:
產品目錄頁面: 1424 (CN2011-ZH PDF)
Single-Channel Monochrome On-Screen
Display with Integrated EEPROM
Video Timing Generator
The video timing generator is a digital circuit generat-
ing all internal and external (VSYNC and HSYNC) tim-
ing signals. VSYNC and HSYNC can be synchronized
to VIN, or run independently of any input when in inter-
nal sync mode. The video timing generator can gener-
ate NTSC or PAL timing using the same 27MHz crystal
(see Figures 4–9).
Crystal Oscillator
The internal crystal oscillator generates the system
clock used by the video timing generator. The oscillator
uses a 27MHz crystal or can be driven by an external
27MHz TTL clock at CLKIN. For external clock mode,
connect the 27MHz TTL input clock to CLKIN and leave
XFB unconnected.
Display Memory (SRAM)
The display memory stores 480 character addresses
that point to the characters stored in the NVM character
memory. The content of the display memory is user-
programmable through the SPI-compatible serial inter-
face. The display-memory address corresponds to a
fixed location on a monitor (see Figure 10). Momentary
breakup of the OSD image can be prevented by writing
to the display memory during the vertical blanking inter-
val. This can be achieved by using VSYNC as an inter-
rupt to the host processor to initiate writing to the
display memory.
tVOUT-VSF
1/2H
VERTICAL SYNCHRONIZATION
PULSE INTERVAL
VOUT
(ODD FIELD)
VOUT
(EVEN FIELD)
VSYNC
HSYNC
(ODD FIELD)
HSYNC
(EVEN FIELD)
50%
tVOUT-VSR
50%
Figure 4. VOUT, VSYNC, and HSYNC Timing (NTSC, External Sync Mode)
MAX7456
12
Maxim Integrated
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相關代理商/技術參數
參數描述
MAX7456EVKIT+ 功能描述:顯示開發(fā)工具 MAX7456 Eval Kit RoHS:否 制造商:4D Systems 產品:4Display Shields 工具用于評估:?OLED-160-G1, ?OLED-160-G2 接口類型:Serial 工作電源電壓:5 V
MAX7457ETE 功能描述:視頻開關 IC RoHS:否 制造商:Texas Instruments 開關數量:4 開啟電阻(最大值):12 Ohms 傳播延遲時間: 開啟時間(最大值): 關閉時間(最大值): 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX7457ETE+ 功能描述:視頻開關 IC Video Switch for Dual SCART Connector RoHS:否 制造商:Texas Instruments 開關數量:4 開啟電阻(最大值):12 Ohms 傳播延遲時間: 開啟時間(最大值): 關閉時間(最大值): 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX7457ETE+T 功能描述:視頻開關 IC Video Switch for Dual SCART Connector RoHS:否 制造商:Texas Instruments 開關數量:4 開啟電阻(最大值):12 Ohms 傳播延遲時間: 開啟時間(最大值): 關閉時間(最大值): 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX7457ETE-T 功能描述:視頻開關 IC RoHS:否 制造商:Texas Instruments 開關數量:4 開啟電阻(最大值):12 Ohms 傳播延遲時間: 開啟時間(最大值): 關閉時間(最大值): 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel