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參數(shù)資料
| 型號： | ADV3219ACPZ-R7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MULTIPLEXER 2:1 16LFCSP |
| 標(biāo)準(zhǔn)包裝： | 1,500 |
| 功能： | 多路復(fù)用器 |
| 電路： | 1 x 2:1 |
| 電壓電源： | 雙電源 |
| 電壓 - 電源，單路/雙路(±)： | ±5V |
| 電流 - 電源： | 7mA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-WFDFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 8-LFCSP-WD（3x3） |
| 包裝： | 帶卷 (TR) |
ADV3219/ADV3220
Rev. 0 | Page 17 of 20
APPLICATIONS INFORMATION
The ADV3219 and ADV3220 are very high speed muxes that
can be used to switch video or RF signals. The low output imped-
ance of the ADV3219/ADV3220 allows the output environment
to be optimized for use in 75 Ω or 50 Ω systems by choosing the
appropriate series termination resistor. For composite video
applications, the ADV3220 (gain of +2) is typically used to
provide compensation for the loss of the output termination.
CIRCUIT LAYOUT
Use of proper high speed design techniques is important to
ensure optimum performance. Use a low inductance ground
plane for power supply bypassing and to provide high quality
return paths for the input and output signals. For best performance,
it is recommended that power supplies be bypassed with 0.1 μF
ceramic capacitors placed as close to the body of the device as
possible. To provide stored energy for lower frequency, high
current output driving, place 10 μF tantalum capacitors farther
from the device.
The input and output signal paths should be stripline or micro-
strip controlled impedance. Video systems typically use a 75 Ω
characteristic impedance, whereas RF systems typically use 50 Ω.
Various calculators are available to calculate the trace geometry
that is required to produce the proper characteristic impedance.
TERMINATION
For a controlled impedance situation, termination resistors are
required at the inputs and output of the device. The input ter-
mination should be a shunt resistor to ground with a value
matching the characteristic impedance of the input trace. To
reduce reflections, place the input termination resistor as close
to the device input pin as possible. To minimize the input-to-
input crosstalk, it is important to use a low inductance shield
between input traces to isolate each input. Consideration of
ground current paths must be taken to minimize loop currents
in the shields to prevent them from providing a coupling medium
for crosstalk.
For proper matching, the output series termination resistor
should be the same value as the characteristic impedance of the
output trace and placed as close to the output of the device as
possible. This placement reduces the high frequency effect of
series parasitic inductance, which can affect gain flatness and
3 dB bandwidth.
CAPACITIVE LOAD
A high frequency output generally has difficulty when driving a
capacitive load. The usual response is some peaking in the fre-
quency domain or some overshoot in the time domain. If these
effects become too large, oscillation can result.
The response of the device under various capacitive loads is
arises wherein excessive load capacitance is encountered and
the overshoot is too great or the part oscillates, use a small series
resistor of a few tens of ohms to improve the performance.
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| ADV3219ACPZ-RL | 功能描述:IC MULTIPLEXER 2:1 16LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 功能:多路復(fù)用器 電路:1 x 4:1 導(dǎo)通狀態(tài)電阻:- 電壓電源:雙電源 電壓 - 電源，單路/雙路(±):±5V 電流 - 電源:7mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| ADV3219-EVALZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:800 MHz, 2:1 Analog Multiplexers |
| ADV3220 | 制造商:AD 制造商全稱:Analog Devices 功能描述:800 MHz, 2:1 Analog Multiplexers |
| ADV32207802 | 制造商:LG Corporation 功能描述:Frame Assembly |
| ADV3220ACPZ | 功能描述:IC MULTIPLEXER 2:1 16LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 特色產(chǎn)品:MicroPak? 標(biāo)準(zhǔn)包裝:1 系列:- 功能:開關(guān) 電路:2 x SPST - NC 導(dǎo)通狀態(tài)電阻:500 毫歐 電壓電源:單電源 電壓 - 電源，單路/雙路(±):1.4 V ~ 4.3 V 電流 - 電源:150nA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-XFDFN 供應(yīng)商設(shè)備封裝:8-XSON，SOT833-1 （1.95x1） 包裝:Digi-Reel® 其它名稱:568-5557-6 |
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