參數(shù)資料
型號(hào): ADG904
廠商: Analog Devices, Inc.
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: 寬帶,37月1 GHz的分貝的CMOS 1.65 V至2.75 V的隔離,4:1 Mux/SP4T
文件頁數(shù): 1/16頁
文件大?。?/td> 354K
代理商: ADG904
Wideband, 37 dB Isolation at 1 GHz,
CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T
ADG904/ADG904-R
FEATURES
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
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
Tuner modules
Antenna diversity switching
GENERAL DESCRIPTION
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 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.
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.
Tel: 781.329.4700
www.analog.com
FUNCTIONAL BLOCK DIAGRAMS
ADG904
50
50
50
50
1 OF 4 DECODER
RFC
A0
A1
EN
RF1
RF2
RF3
RF4
0
ADG904-R
1 OF 4 DECODER
RFC
A0
A1
EN
RF1
RF2
RF3
RF4
0
Figure 1
Figure 2
The ADG904/ADG904-R switches one of four inputs to a
common output, RFC, as determined by the 3-bit binary
address lines A0, A1, and EN. A Logic 1 on the EN pin disables
the device.
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.
PRODUCT HIGHLIGHTS
1.
–37 dB off isolation @ 1 GHz
2.
1.1 dB insertion loss @ 1 GHz
3.
20-lead TSSOP packages
0
FREQUENCY (Hz)
10G
10k
100k
1M
10M
100M
1G
I
–10
–20
–30
–40
–50
–60
–70
–80
V
DD
= 2.5V
S12
S21
0
FREQUENCY (Hz)
10G
10k
100k
1M
10M
100M
1G
I
–0.3
V
DD
= 2.5V
T
A
= 25°C
Figure 3. Off Isolation vs. Frequency
Figure 4. Insertion Loss vs. Frequency
相關(guān)PDF資料
PDF描述
ADG904-R Wideband, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T
ADG904BRU Wideband, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T
ADG904BRU-500RL7 Wideband, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T
ADG904BRU-R Wideband, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T
ADG904BRU-R-500RL7 Wideband, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T
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