VOCM WEIGHTING " />
參數(shù)資料
型號(hào)： AD8134ACPZ-REEL
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 9/20頁(yè)
文件大?。?/td> 0K
描述： IC OPAMP DIFF TRPL LDIST 24LFCSP
標(biāo)準(zhǔn)包裝： 5,000
放大器類型： 差分
電路數(shù)： 3
輸出類型： 差分
轉(zhuǎn)換速率： 1600 V/µs
-3db帶寬： 450MHz
電流 - 輸入偏壓： 67µA
電壓 - 輸入偏移： 4000µV
電流 - 電源： 31mA
電流 - 輸出 / 通道： 90mA
電壓 - 電源，單路/雙路(±)： 4.5 V ~ 12 V，±2.25 V ~ 6 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 24-VFQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 24-LFCSP-VQ（4x4）
包裝： 帶卷 (TR)
AD8134
Rev. A | Page 17 of 20
–OUT R
+OUT R
–OUT G
+OUT G
–OUT B
+OUT B
VOCM WEIGHTING EQUATIONS:
RED VOCM = K(VSYNC – HSYNC) + VMIDSUPPLY
GREEN VOCM = K(–2VSYNC) + VMIDSUPPLY
BLUE VOCM = K(VSYNC + HSYNC) + VMIDSUPPLY
+IN R
–IN R
VSYNC
HSYNC
SYNC LEVEL
+IN G
–IN G
+IN B
–IN B
R
1.5k
Ω
1.5k
Ω
AD8134
750
Ω
750
Ω
G
1.5k
Ω
1.5k
Ω
750
Ω
750
Ω
VOCM
VOCM B
1.5k
Ω
1.5k
Ω
750
Ω
750
Ω
OPD
×2
04770-003
2
Figure 34. AD8134 Sync-On-Common-Mode Encoding Scheme
0
0.5
1.0
1.5
2.0
4.0
3.5
4.5
2.5
3.0
5.0
0.98
0.99
1.00
1.01
1.03
1.04
1.05
1.02
1.06
1.07
TIME (
μs)
HSYNC
VSYNC
2.0
2.1
2.2
2.3
2.4
2.9
2.8
3.0
2.5
2.6
2.7
3.1
R
G
B
04770-
004
Figure 35. AD8134 Sync-On-Common-Mode Signals in Single 5 V Application
The transmitted common-mode sync signal magnitudes are
scaled by applying a dc voltage to the SYNC LEVEL input,
referenced to the negative supply. The difference between the
voltage applied to the SYNC LEVEL input and the negative
supply sets the peak deviation of the encoded sync signals about
the midsupply common-mode voltage. For example, with the
SYNC LEVEL input set at VS + 500 mV, the deviation of the
encoded sync pulses about the nominal midsupply common-
mode voltage is typically ±500 mV. The equations in Figure 34
describe how the VSYNC and HSYNC signals are encoded on each
color’s midsupply common-mode signal. In these equations, the
weights of the VSYNC and HSYNC signals are ±1 (+1 for high, 1
for low), and the constant K is equal to the peak deviation of the
encoded sync signals.
Figure 35 shows how the sync signals appear on each common-
mode voltage in a single 5 V supply application when the
voltage applied to the SYNC LEVEL input is 500 mV. A typical
setting for the SYNC LEVEL voltage is 500 mV above the
negative supply.
LEVEL-SHIFTING SYNC PULSES ON ±5 V SUPPLIES
The vertical and horizontal sync pulses received from a
computer video port are generally referenced to ground. When
using ±5 V supplies, these pulses must be level-shifted before
being applied to the negative-supply referenced VSYNC and HSYNC
inputs because these inputs are referenced to the negative
supply. The circuit shown in Figure 36 provides the proper sync
pulse level-shifting for a negative supply voltage of 5 V. The
vertical and horizontal sync pulses each require a level-shift
circuit.
6.04k
Ω
2.21k
Ω
LEVEL-SHIFTED
SYNC PULSE
TO AD8134
GROUND-REFERENCED
SYNC PULSE
1k
Ω
VS–
2N3906
04770-
035
Figure 36. Level-Shifting Sync Pulses on ±5 V Supplies
相關(guān)PDF資料
PDF描述
AD8137YR IC AMP DIFF R-R LP 20MA 8SOIC
AD8139ARD-REEL IC AMP DIFF R-R LN LDIST 8SOIC
AD8202WYRMZ IC AMP DIFF 50KHZ 8MSOP
AD8203YRZ-R7 IC AMP DIFF 60KHZ 8SOIC
AD8205WYRZ IC AMP DIFF 42V SGL 8SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD8134ACPZ-REEL7 功能描述:IC OPAMP DIFF TRPL LDIST 24LFCSP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)換速率:350 V/µs 增益帶寬積:180MHz -3db帶寬:320MHz 電流 - 輸入偏壓:12.5µA 電壓 - 輸入偏移:800µV 電流 - 電源:15mA 電流 - 輸出 / 通道:85mA 電壓 - 電源，單路/雙路(±):2.5 V ~ 12.6 V，±1.25 V ~ 6.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MSOP 包裝:帶卷 (TR)
AD8137 制造商:AD 制造商全稱:Analog Devices 功能描述:Ultralow Power, Low Distortion
AD8137_05 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Cost, Low Power 12-Bit Differential ADC Driver
AD8137_12 制造商:AAVID 制造商全稱:AAVID 功能描述:Low Cost, Low Power, Differential ADC Driver
AD8137ACP 制造商:Analog Devices 功能描述:LOW COST 10-12 BIT DIFFERENTIAL ADC DRIVER - Bulk
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)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(gòu)。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(gòu)。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(gòu)

我的聯(lián)系方式

*
*
*