參數(shù)資料
型號(hào)： ST72774S9T1
廠商： 意法半導(dǎo)體
元件分類： ADC
英文描述： 8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C
中文描述： 8位USB單片機(jī)的顯示器，高達(dá)60K章檢察官辦公室，每1000內(nèi)存，模數(shù)轉(zhuǎn)換器，定時(shí)器，同步，材質(zhì)單元，脈寬調(diào)制/的BRM，的H / W DDC的
文件頁數(shù)： 63/144頁
文件大?。?/td> 1280K
代理商： ST72774S9T1
ST72774/ST727754/ST72734
63/144
SYNC PROCESSOR (SYNC)
(Cont’d)
4.4.6.5 Example of VSYNCO extraction for a
negative composite sync with serration pulses
Refer to
Figure 43
.
In extraction mode, the 5-bit comparator checks
the counter value with respect to the threshold.
When the incoming signal is high, the counter is
increased, otherwise it is decreased.
When the counter reaches the threshold on its way
down, VSYNCO is asserted. During the vertical
blanking, the counter value is decreased down to a
programmable minimum, i.e. it does not underflow.
When the vertical period is finished, the counter
starts counting up and when the maximum is
reached, VSYNCO is negated. The extracted
signal may be validated by software since it is input
to Timer ICAP1.
Serration pulses during vertical blanking can be
filtered if the serration pulse widths are less than
8μs.
In the same way, positive composite sync signals
can be used by properly selecting the edge
sensitivity in HSYNCI width measurement mode
(LCV0 bit).
Figure 43. VSYNCO Extraction from a Composite Signal (negative polarity)
Figure 44. Obtaining the 11-bit Vertical Period (V11BITS)
7
VGENR
VR01990
8μs
Composite signal
Input
Max Pulse width: 8μs
1F-Threshold
Counter value:
1F=Max
Serration pulses
VSYNCO Pulse
Max Delay: 8μs
or threshold
HSYNCO
Threshold
0=Min
VSYNCO
generated
7
0
0
0
10
CFGR
V11BITS
Example:
VGENR=CCh, CFGR = 3h
V11bits=663h
Q’2 Q’1 Q’0
相關(guān)PDF資料
PDF描述
ST72E734J6D0 8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C
ST727T272N5B1 8-BIT MCU WITH 24K ROM, EEPROM,ADC,PWM/BRM DACs,SYNC PROCESSOR,EWPCC,TIMER AND DDC INTERFACE
ST727E272N5D1 8-BIT MCU WITH 24K ROM, EEPROM,ADC,PWM/BRM DACs,SYNC PROCESSOR,EWPCC,TIMER AND DDC INTERFACE
ST7272 8-BIT MCU WITH 24K ROM, EEPROM,ADC,PWM/BRM DACs,SYNC PROCESSOR,EWPCC,TIMER AND DDC INTERFACE
ST7272N5B1 8-BIT MCU WITH 24K ROM, EEPROM,ADC,PWM/BRM DACs,SYNC PROCESSOR,EWPCC,TIMER AND DDC INTERFACE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST727X4-EMU2B 制造商:STMicroelectronics 功能描述:REALTIME EMULATOR BOARD - Bulk
ST727X4-EPB/US 制造商:STMicroelectronics 功能描述:PROGRAMMER - Bulk
ST-7-28 功能描述:XFRMR PWR 115V 14VAC 2.6A RoHS:是 類別:變壓器 >> 功率 系列:ST 標(biāo)準(zhǔn)包裝:1 系列:260 類型:標(biāo)準(zhǔn) 最大功率:65 VA 主線圈:雙 副線圈:三路，中心抽頭 在某電流時(shí)的串聯(lián)輸出電壓:500 VAC @ 85mA，5 VAC @ 2A，6.3 VAC @ 2A 在某電流時(shí)的并聯(lián)輸出電壓:- 安裝類型:底座安裝 尺寸/尺寸:102.36mm L x 67.31mm W 高度 - 座高（最大）:66.80mm 端接類型:導(dǎo)線引線
ST7-28 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:POWER TRANSFORMER
ST7-28B56 功能描述:電源變壓器 SPLIT BOBBIN HORZ MOUNT XFMR RoHS:否 制造商:Triad Magnetics 功率額定值:12 VA 初級(jí)電壓額定值:115 V / 230 V 次級(jí)電壓額定值:12 V / 24 V 安裝風(fēng)格:SMD/SMT 一次繞組:Dual Primary Winding 二次繞組:Dual Secondary Winding 長度:2.5 in 寬度:2 in 高度:1.062 in
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*