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參數資料
| 型號： | ADG904BRU-R-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Wideband, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T |
| 中文描述： | 4-CHANNEL, SGL ENDED MULTIPLEXER, PDSO20 |
| 封裝： | MO-153AC, TSSOP-20 |
| 文件頁數： | 11/16頁 |
| 文件大小： | 354K |
| 代理商： | ADG904BRU-R-REEL7 |
ADG904/ADG904-R
APPLICATIONS
The ADG904/ADG904-R 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. They may be used
in applications such as switchable filters, transmitters and
receivers for radar systems, and communication systems from
base stations to cell phones.
Rev. 0 | Page 11 of 16
The ADG9xx wideband switches are designed to meet the
demands of devices transmitting at ISM band frequencies to
1 GHz and higher. The low insertion loss, high isolation
between ports, single pin control interface, no requirement for
dc blocking capacitors, and TTL interface compatibility make
them cost effective and easy to integrate switching solutions for
many high frequency switching applications and low power
applications where the parts can handle up to 16 dBm of power.
ABSORPTIVE VS. REFLECTIVE
The ADG904 is an absorptive (matched) switch with 50
terminated shunt legs; the ADG904-R is a reflective switch with
0 terminated shunts to ground. The ADG904 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 ADG904 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 ADG904-R 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.
ANTENNA DIVERSITY SWITCH
The ADG904 is ideal for use as an antenna diversity switch,
switching in different antennas to the tuner. The low insertion
loss ensures minimum signal loss and high isolation between
channels, making these SP4T switches suitable for switching
applications in tuner modules and set-top boxes.
TUNER
ADG904
CABLE
RF1
RF2
RF3
RF4
VGA
ANTENNA
0
Figure 26. Tuner Modules
FILTER SELECTION
The ADG904 can be used to switch high frequency signals
between different filters, and to multiplex the signal to the
output. These SP4T switches are also ideal for high speed signal
routing.
RF
OUT
RFC
ADG904
ADG904
RF1
RF2
RF3
RF4
RF1
RF2
RF3
RF4
RF
IN
RFC
0
Figure 27. Filter Selection
Tx/Rx SWITCHING
The low insertion loss and high isolation between ports ensures
that the ADG904/ADG904-R is a suitable transmit/receive
switch for all ISM band and WirelessLAN, providing the
required isolation between the transmit and receive signals.
ADG904
Tx
Rx
Rx
Rx
Rx
ANTENNA
0
Figure 28. Tx/Rx Switching
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADG904BRUZ | 功能描述:IC MULTIPLEXER 4X1 20TSSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關，多路復用器，多路分解器 系列:- 應用說明:Ultrasound Imaging Systems Application Note 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:250 系列:- 功能:開關 電路:單刀單擲 導通狀態電阻:48 歐姆 電壓電源:單電源 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V 電流 - 電源:5µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:48-LQFP 供應商設備封裝:48-LQFP（7x7） 包裝:托盤 |
| ADG904BRUZ-R | 功能描述:IC MULTIPLEXER 4X1 20TSSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關，多路復用器，多路分解器 系列:- 標準包裝:1,000 系列:- 功能:多路復用器 電路:1 x 4:1 導通狀態電阻:- 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） 供應商設備封裝:16-SOIC 包裝:帶卷 (TR) |
| ADG904BRUZ-REEL7 | 功能描述:IC MULTIPLEXER 4X1 20TSSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關，多路復用器，多路分解器 系列:- 標準包裝:1,000 系列:- 功能:多路復用器 電路:1 x 4:1 導通狀態電阻:- 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） 供應商設備封裝:16-SOIC 包裝:帶卷 (TR) |
| ADG904-R | 制造商:AD 制造商全稱:Analog Devices 功能描述:Wideband, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T |
| ADG904SCPZ-EP | 功能描述:1GHZ SPST SW (50 OHM TERMINATIO 制造商:analog devices inc. 系列:* 零件狀態:有效 標準包裝:1 |
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