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EVAL-ADG904EBZ

更新时间： 2022-04-22 00:01:02
品牌 Logo 应用领域
亚德诺 - ADI 复用器
页数 文件大小 规格书
17页 517K
描述
Wideband 2.5 GHz, 37 dB Isolation at 1 GHz, CMOS 1.65V to 2.75V, 4:1 Mux/SP4T

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EVAL-ADG904EBZ 数据手册

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Wideband 2.5 GHz, 37 dB Isolation at 1 GHz,  
CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T  
Data Sheet  
ADG904/ADG904-R  
FEATURES  
FUNCTIONAL BLOCK DIAGRAMS  
Wideband switch: –3 dB @ 2.5 GHz  
ADG904: absorptive 4:1 mux/SP4T  
ADG904-R: reflective 4:1 mux/SP4T  
High off isolation (37 dB @ 1 GHz)  
Low insertion loss (1.1 dB dc to 1 GHz)  
Single 1.65 V to 2.75 V power supply  
CMOS/LVTTL control logic  
20-lead TSSOP and 4 mm × 4 mm LFCSP packages  
Low power consumption (1 μA maximum)  
Qualified for automotive applications  
ADG904-R  
ADG904  
RF1  
RF1  
50  
50  
50  
50  
RF2  
RF3  
RF4  
RF2  
RF3  
RF4  
RFC  
RFC  
APPLICATIONS  
Wireless communications  
General-purpose RF switching  
Dual-band applications  
High speed filter selection  
Digital transceiver front end switch  
IF switching  
1 OF 4 DECODER  
A0 A1 EN  
1 OF 4 DECODER  
A0 A1 EN  
Figure 1.  
Figure 2.  
Tuner modules  
Antenna diversity switching  
GENERAL DESCRIPTION  
The parts have on-board CMOS control logic, which eliminates  
the need for external control circuitry. The control inputs  
are both CMOS and LVTTL compatible. The low power  
consumption of these devices makes them ideally suited  
for wireless applications and general-purpose high  
frequency switching.  
The ADG904 and ADG904-R are wideband analog 4:1  
multiplexers that use a CMOS process to provide high isolation  
and low insertion loss to 1 GHz. The ADG904 is an  
absorptive/matched mux with 50 Ω terminated shunt legs; the  
ADG904-R is a reflective mux. These devices are designed such  
that the isolation is high over the dc to 1 GHz frequency range.  
PRODUCT HIGHLIGHTS  
The ADG904 and ADG904-R switch one of four inputs to a  
common output, RFC, as determined by the 3-bit binary  
1. −37 dB off isolation @ 1 GHz  
2. 1.1 dB insertion loss @ 1 GHz  
3. 20-lead TSSOP/LFCSP packages  
address lines A0, A1, and  
. A Logic 1 on the  
pin disables  
EN  
EN  
the device.  
–10  
–0.3  
–0.4  
–0.5  
–0.6  
–0.7  
–0.8  
–0.9  
–1.0  
–1.1  
–1.2  
–1.3  
–1.4  
–1.5  
–1.6  
–1.7  
–1.8  
–1.9  
–2.0  
–2.1  
–2.2  
–2.3  
–2.4  
–2.5  
–2.6  
–2.7  
V
= 2.5V  
DD  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
S21  
S12  
V
= 2.5V  
–2.8  
–2.9  
–3.0  
DD  
= 25°C  
T
A
10k  
100k  
1M  
10M  
100M  
1G  
10G  
10k  
100k  
1M  
10M  
100M  
1G  
10G  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
Figure 3. Off Isolation vs. Frequency  
Document Feedback  
Figure 4. Insertion Loss vs. Frequency  
Rev. C  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights ofthird parties that may result fromits use. Specifications subject to change without notice. No  
licenseis granted byimplication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700 ©2004–2013 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
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