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ADG904

更新时间： 2024-11-17 21:55:15
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亚德诺 - ADI 复用器
页数 文件大小 规格书
16页 450K
描述
Wideband, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T

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ADG904 数据手册

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Wideband, 37 dB Isolation at 1 GHz,  
CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T  
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 contol logic  
ADG904-R  
ADG904  
RF1  
RF1  
50Ω  
50Ω  
50Ω  
50Ω  
RF2  
RF3  
RF4  
RF2  
RF3  
RF4  
RFC  
RFC  
20-lead TSSOP  
Low power consumption (1 µA max)  
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  
Tuner modules  
Antenna diversity switching  
Figure 1  
Figure 2  
GENERAL DESCRIPTION  
The parts have on-board CMOS control logic, thus eliminating  
the need for external control circuitry. The control inputs are  
both CMOS and LVTTL compatible. The ADG904/ADG904-R’s  
low power consumption makes them ideally suited for wireless  
applications and general-purpose high frequency switching.  
The ADG904/ADG904-R are wideband analog 4:1multiplexers  
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 isola-  
tion is high over the dc to 1 GHz frequency range.  
PRODUCT HIGHLIGHTS  
1. –37 dB off isolation @ 1 GHz  
The ADG904/ADG904-R switches one of four inputs to a  
common output, RFC, as determined by the 3-bit binary  
2. 1.1 dB insertion loss @ 1 GHz  
3. 20-lead TSSOP 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  
Figure 4. Insertion Loss vs. Frequency  
Rev. 0  
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 of third parties that may result from its use.  
Specifications subject to change without notice. No license is granted by implication  
or otherwise under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  
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ADG904BCPZ-R-REEL ADI

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 		Wideband 2.5 GHz, 37 dB Isolation at 1 GHz, CMOS 1.65V to 2.75V, 4:1 Mux/SP4T
ADG904BCPZ-R-REEL ROCHESTER

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 		4-CHANNEL, SGL ENDED MULTIPLEXER, QCC20, 4 X 4 MM, ROHS COMPLIANT, MO-220VGGD-1, LFCSP-20
ADG904BRU ADI

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 		Wideband, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T

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