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參數(shù)資料
| 型號： | ADG918BRMZ1 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 開關(guān) |
| 英文描述： | 0 MHz - 2000 MHz RF/MICROWAVE DIVERSITY SWITCH, 1.25 dB INSERTION LOSS |
| 封裝： | LEAD FREE, RM-8, MO-187AA, MSOP-8 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 614K |
| 代理商： | ADG918BRMZ1 |
ADG918/ADG919
Rev. A | Page 12 of 16
APPLICATIONS
The ADG918/ADG919 are ideal solutions for low power, high
frequency applications. The low insertion loss, high isolation
between ports, low distortion, and low current consumption of
these parts make them excellent solutions for many high
frequency switching applications. The most obvious application
is in a transmit/receive block, as shown in the wireless metering
block diagram in Figure 26.
Other applications include switching between high frequency
filters, ASK generator, FSK generator, and antenna diversity
switch in many tuner modules.
ABSORPTIVE VS. REFLECTIVE
The ADG918 is an absorptive (matched) switch with 50
terminated shunt legs, and the ADG919 is a reflective switch
with 0 terminated shunts to ground. The ADG918 absorptive
switch has a good VSWR on each port, regardless of the switch
mode. An absorptive switch should be used when there is a
need for a good VSWR that is looking into the port but not
passing the through signal to the common port. The ADG918 is
therefore ideal for applications that require minimum
reflections back to the RF source. It also ensures that the
maximum power is transferred to the load.
The ADG919 reflective switch is suitable for applications where
high off port VSWR does not matter and the switch has some
other desired performance feature. It can be used in many
applications, including high speed filter selection. In most cases,
an absorptive switch can be used instead of a reflective switch,
but not vice versa.
WIRELESS METERING
The ADG918 can be used in wireless metering applications. It
can be used in conjunction with the ADF7020 transceiver IC for
a utility metering transceiver application, providing the
required isolation between the transmit and receive signals.
The SPDT configuration isolates the high frequency receive
signal from the high frequency transmit.
LNA
ANTENNA
TX/RX SWITCH
PA
ADG918
03335-A
-005
Figure 26. Wireless Metering
TUNER MODULES
The ADG918 can be used in a tuner module to switch between
the cable TV input and the off-air antenna.
This part is also ideal for use as an antenna diversity switch,
switching different antenna to the tuner.
VGA
ANTENNA
CABLE
ADG918/
ADG919
TUNER
03335-A
-006
Figure 27. Tuner Modules
FILTER SELECTION
The ADG919 can be used as a 2:1 demultiplex to switch high
frequency signals between different filters and also to multiplex
the signal to the output.
ADG919
RF1
RF2
RF1
RF2
RFC
RFOUT
RFIN
RFC
03335-A
-007
Figure 28. Filter Selection
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADG918BRMZ-500RL7 | 功能描述:IC SWITCH SPDT 2:1 MUX 8MSOP RoHS:是 類別:RF/IF 和 RFID >> RF 開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:25,000 系列:* RF 型:通用 頻率:0Hz ~ 3GHz 特點(diǎn):SPDT 封裝/外殼:6-XFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:TSLP-7 包裝:帶卷 (TR) 其它名稱:SP000671392 |
| ADG918BRMZ-500RL71 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Wideband 4 GHz, 43 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 2:1 Mux/SPDT |
| ADG918BRMZ-REEL | 功能描述:IC SWITCH SPDT 2:1 MUX 8MSOP RoHS:是 類別:RF/IF 和 RFID >> RF 開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:25,000 系列:* RF 型:通用 頻率:0Hz ~ 3GHz 特點(diǎn):SPDT 封裝/外殼:6-XFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:TSLP-7 包裝:帶卷 (TR) 其它名稱:SP000671392 |
| ADG918BRMZ-REEL1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Wideband 4 GHz, 43 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 2:1 Mux/SPDT |
| ADG918BRMZ-REEL7 | 功能描述:IC SWITCH SPDT 2:1 MUX 8MSOP RoHS:是 類別:RF/IF 和 RFID >> RF 開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:25,000 系列:* RF 型:通用 頻率:0Hz ~ 3GHz 特點(diǎn):SPDT 封裝/外殼:6-XFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:TSLP-7 包裝:帶卷 (TR) 其它名稱:SP000671392 |
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