ADW54011Z-0REEL7 [ADI]

Wideband 2.5 GHz, 37 dB Isolation at 1 GHz, CMOS 1.65V to 2.75V, 4:1 Mux/SP4T; 宽带2.5 GHz的37 dB的隔离在1 GHz , CMOS 1.65V至2.75V , 4 : 1多路复用器/ SP4T
ADW54011Z-0REEL7
型号: ADW54011Z-0REEL7
厂家: ADI    ADI
描述:

Wideband 2.5 GHz, 37 dB Isolation at 1 GHz, CMOS 1.65V to 2.75V, 4:1 Mux/SP4T
宽带2.5 GHz的37 dB的隔离在1 GHz , CMOS 1.65V至2.75V , 4 : 1多路复用器/ SP4T

复用器
文件: 总17页 (文件大小:517K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
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  
IMPORTANT LINKS for the ADG904_904R*  
Last content update 08/16/2013 12:48 pm  
PARAMETRIC SELECTION TABLES  
DESIGN COLLABORATION COMMUNITY  
Choosing the Correct Switch or Multiplexer for Your Application  
Switches and Multiplexers Product Selection Guide  
Multiplexer Parametric Search  
Collaborate Online with the ADI support team and other designers  
about select ADI products.  
Follow us on Twitter: www.twitter.com/ADI_News  
Like us on Facebook: www.facebook.com/AnalogDevicesInc  
DOCUMENTATION  
AN-952: ADG9xx Wideband CMOS Switches: Frequently Asked  
Questions  
CN-0211: IF Band-Pass Filter Bank Switching Network for Wireless  
Infrastructure  
DESIGN SUPPORT  
Submit your support request here:  
Linear and Data Converters  
Embedded Processing and DSP  
Use Circuits from the Lab™ in Your Next Design  
CMOS Switches Offer High Performance in Low Power, Wideband  
Applications  
RF Source Booklet  
Telephone our Customer Interaction Centers toll free:  
Americas:  
Europe:  
China:  
1-800-262-5643  
00800-266-822-82  
4006-100-006  
India:  
Russia:  
1800-419-0108  
8-800-555-45-90  
PRODUCT RECOMMENDATIONS & REFERENCE DESIGNS  
CN-0211: IF Band-Pass Filter Bank Switching Network for Wireless  
Infrastructure  
Quality and Reliability  
Lead(Pb)-Free Data  
EVALUATION KITS & SYMBOLS & FOOTPRINTS  
View the Evaluation Boards and Kits page for ADG904  
SAMPLE & BUY  
ADG904/ADG904-R  
View the Evaluation Boards and Kits page for ADG904-R  
Symbols and Footprints  
View Price & Packaging  
Request Evaluation Board  
Request Samples Check Inventory & Purchase  
Find Local Distributors  
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet.  
Note: Dynamic changes to the content on this page (labeled 'Important Links') does not  
constitute a change to the revision number of the product data sheet.  
This content may be frequently modified.  
ADG904/ADG904-R  
Data Sheet  
TABLE OF CONTENTS  
Specifications..................................................................................... 3  
Absolute Maximum Ratings............................................................ 4  
ESD Caution.................................................................................. 4  
Pin Configurations and Function Descriptions ........................... 5  
Terminology ...................................................................................... 6  
Typical Performance Characteristics ............................................. 7  
Test Circuits....................................................................................... 9  
Applications..................................................................................... 11  
Absorptive vs. Reflective ........................................................... 11  
Antenna Diversity Switch.......................................................... 11  
Filter Selection ............................................................................ 11  
Tx/Rx Switching ......................................................................... 11  
Evaluation Board ............................................................................ 12  
Outline Dimensions....................................................................... 13  
Ordering Guide .......................................................................... 14  
Automotive Products................................................................. 14  
REVISION HISTORY  
/13—Rev. B to Rev. C  
Changes to Features Section............................................................ 1  
Changes to Figure 6.......................................................................... 5  
Updated Outline Dimensions....................................................... 13  
Changes to Ordering Guide .......................................................... 14  
Added Automotive Product Section ............................................ 14  
2/07—Rev. A to Rev. B  
Updated Outline Dimensions....................................................... 13  
Changes to Ordering Guide .......................................................... 14  
8/05—Rev. 0 to Rev. A  
Added LFCSP Package.......................................................Universal  
Changes to Specifications ................................................................ 3  
Changes to Absolute Maximum Ratings....................................... 4  
Inserted New Figure 6...................................................................... 5  
Changes to Table 4............................................................................ 5  
Changes to Outline Dimensions................................................... 13  
Changes to Ordering Guide .......................................................... 14  
4/04—Revision 0: Initial Version  
Rev. C | Page 2 of 16  
Data Sheet  
ADG904/ADG904-R  
SPECIFICATIONS  
VDD = 1.65 V to 2.75 V, GND = 0 V, Input Power = 0 dBm, all specifications TMIN to TMAX, unless otherwise noted.1  
Table 1.  
B Version  
Parameter  
Symbol  
Conditions  
Min  
Typ2 Max  
Unit  
AC ELECTRICAL CHARACTERISTICS  
Operating Frequency3  
3 dB Frequency4  
DC  
2
2.5  
7
GHz  
GHz  
dBm  
dBm  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
Input Power4  
0 V dc bias  
0.5 V dc bias  
DC to 100 MHz; VDD = 2.5 V 10%  
500 MHz; VDD = 2.5 V 10%  
1000 MHz; VDD = 2.5 V 10%  
100 MHz  
500 MHz  
1000 MHz  
100 MHz  
500 MHz  
1000 MHz  
DC to 100 MHz  
500 MHz  
1000 MHz  
DC to 100 MHz  
500 MHz  
16  
Insertion Loss  
S21, S12  
S21, S12  
S21, S12  
S11, S22  
S11, S22  
0.4  
0.6  
1.1  
60  
45  
37  
58  
32  
35  
27  
26  
30  
22  
23  
22  
8.5  
0.8  
0.9  
1.5  
Isolation—RFC to RF1–RF4  
Crosstalk  
51  
35  
30  
50  
35  
30  
21  
18  
15  
18  
16  
18  
Return Loss (On Channel)4  
Return Loss (Off Channel)4  
dB  
dB  
ns  
1000 MHz  
50% EN to 90% RF  
On Switching Time4  
Off Switching Time4  
tON (  
10  
16  
)
EN  
tOFF (  
50% EN to 10% RF  
13  
ns  
)
EN  
tTRANS  
tRISE  
Transition Time  
50% Ax to 10% RF  
10% to 90% RF  
90% to 10% RF  
1000 MHz  
900 MHz/901 MHz, 4 dBm  
12  
3
7.5  
16  
31  
3
15  
5
9
ns  
ns  
ns  
dBm  
dBm  
mV p-p  
Rise Time4  
Fall Time4  
tFALL  
P–1 dB  
IP3  
1 dB Compression4  
Third-Order Intermodulation Intercept  
Video Feedthrough5  
DC ELECTRICAL CHARACTERISTICS  
Input High Voltage  
26.5  
VINH  
VINH  
VINL  
VINL  
II  
VDD = 2.25 V to 2.75 V  
VDD = 1.65 V to 1.95 V  
VDD = 2.25 V to 2.75 V  
VDD = 1.65 V to 1.95 V  
0 ≤ VIN ≤ 2.75 V  
1.7  
0.65 VCC  
V
V
V
V
Input Low Voltage  
0.7  
0.35 VCC  
1
Input Leakage Current  
CAPACITANCE4  
0.1  
µA  
RF Port On Capacitance  
Digital Input Capacitance  
POWER REQUIREMENTS  
VDD  
CRF ON  
C
f = 1 MHz  
f = 1 MHz  
3
2
pF  
pF  
1.65  
2.75  
1
V
µA  
Quiescent Power Supply Current  
IDD  
Digital inputs = 0 V or VDD  
0.1  
1 Temperature range B version: −40°C to +85°C.  
2 Typical values are at VDD = 2.5 V and 25°C, unless otherwise stated.  
3 Operating frequency is the point at which insertion loss degrades by 1.5 dB.  
4 Guaranteed by design, not subject to production test.  
5 Video feedthrough is the dc transience at the output of any port of the switch when the control voltage is switched from high to low or low to high in a 50 Ω test  
setup, measured with 1 ns rise time pulses and 500 MHz bandwidth.  
Rev. C | Page 3 of 16  
 
ADG904/ADG904-R  
Data Sheet  
ABSOLUTE MAXIMUM RATINGS  
TA = 25°C, unless otherwise noted.  
Table 2.  
Stresses above those listed under Absolute Maximum Ratings  
may cause permanent damage to the device. This is a stress  
rating only; functional operation of the device at these or any  
other conditions above those indicated in the operational  
section of this specification is not implied. Exposure to absolute  
maximum rating conditions for extended periods may affect  
device reliability. Only one absolute maximum rating may be  
applied at any one time.  
Parameter  
Rating  
VDD to GND  
Inputs to GND  
Continuous Current  
Input Power  
–0.5 V to +4 V  
–0.5 V to VDD + 0.3 V1  
30 mA  
18 dBm  
Operating Temperature Range  
Industrial (B Version)  
Storage Temperature Range  
Junction Temperature  
TSSOP Package  
–40°C to +85°C  
–65°C to +150°C  
150°C  
Table 3. Truth Table  
θJA Thermal Impedance  
LFCSP Package  
θJA Thermal Impedance  
(4-Layer Board)  
143°C/W  
30.4°C/W  
A1  
A0  
ON Switch1  
EN  
1
X
0
0
1
1
X
0
1
0
1
None  
RF1  
RF2  
RF3  
RF4  
0
0
0
0
Lead Temperature, Soldering (10 sec)  
IR Reflow, Peak Temperature (<20 sec)  
ESD  
300°C  
235°C  
1 kV  
1 RFx off port inputs to ground = –0.5 V to VDD – 0.5 V.  
1 Off switches have: 50 Ω termination to GND (ADG904); shunt to GND  
(ADG904-R).  
ESD CAUTION  
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on  
the human body and test equipment and can discharge without detection. Although this product features  
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy  
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance  
degradation or loss of functionality.  
Rev. C | Page 4 of 16  
 
 
 
Data Sheet  
ADG904/ADG904-R  
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS  
ADG904/ADG904-R  
EN  
1
2
20 A0  
19 A1  
V
DD  
GND  
RF1  
15 GND  
14 RF2  
13 GND  
12 GND  
11 RF4  
GND  
RF1  
GND  
GND  
RF3  
1
2
3
4
5
3
4
5
6
7
8
9
18 GND  
ADG904  
TOP VIEW  
(Not to Scale)  
ADG904-R 17 RF2  
GND  
GND  
RF3  
16 GND  
15 GND  
14 RF4  
13 GND  
12 GND  
11 GND  
TOP VIEW  
(Not to Scale)  
GND  
GND  
NOTES  
1. THE EXPOSED PAD IS TIED  
TO SUBSTRATE, V  
RFC 10  
.
SS  
Figure 5. 20-Lead TSSOP (RU-20)  
Figure 6. 20-Lead 4 mm × 4mm LFCSP (CP-20-6)  
Table 4. Pin Function Descriptions  
Pin No.  
20-Lead LFCSP  
20-Lead TSSOP  
Mnemonic Function  
1
18  
EN  
Active Low Digital Input. When high, the device is disabled and all switches  
are off. When low, Ax logic inputs determine On switches.  
2
19  
VDD  
GND  
Power Supply Input. These parts can be operated from 1.65 V to 2.75 V.  
VDD should be decoupled to GND.  
Ground Reference Point for All Circuitry on the Part.  
3, 5, 6, 8, 9, 11, 12, 1, 3, 4, 6, 7, 9, 10,  
13, 15, 16, 18  
12, 13, 15, 20  
4
7
2
5
8
11  
14  
16  
17  
21  
RF1  
RF3  
RFC  
RF4  
RF2  
A1  
RF1 Port.  
RF3 Port.  
Common RF Port for Switch.  
RF4 Port.  
RF2 Port.  
Logic Control Input.  
Logic Control Input.  
Exposed Pad. The exposed pad is tied to substrate, VSS.  
10  
14  
17  
19  
20  
N/A  
A0  
EPAD  
Rev. C | Page 5 of 16  
 
ADG904/ADG904-R  
Data Sheet  
TERMINOLOGY  
Table 5.  
Parameter  
Description  
VDD  
IDD  
Most Positive Power Supply Potential.  
Positive Supply Current.  
GND  
Ax  
Ground (0 V) Reference.  
Logic Control Input.  
VINL  
VINH  
IINL (IINH  
CIN  
Maximum Input Voltage for Logic 0.  
Minimum Input Voltage for Logic 1.  
Input Current of the Digital Input.  
Digital Input Capacitance.  
)
tON (  
Delay between Applying the EN Control Input and the Output Switching On.  
)
EN  
tOFF (  
Delay between Applying the EN Control Input and the Output Switching Off.  
)
EN  
tRISE  
tFALL  
tTRANS  
Rise Time. Time for the RF signal to rise from 10% of the on level to 90% of the on level.  
Fall Time. Time for the RF signal to fall from 90% of the on level to 10% of the on level.  
Transition Time. Delay between applying the digital control input and the output switching on.  
Off Isolation  
Insertion Loss  
Crosstalk  
P–1 dB  
The Attenuation between Input and Output Ports of the Switch when the Switch Control Voltage is in the Off Condition.  
The Attenuation between Input and Output Ports of the Switch when the Switch Control Voltage is in the On Condition.  
Measure of Unwanted Signal Coupled through from One Channel to Another as a Result of Parasitic Capacitance.  
1 dB Compression Point. The RF input power level at which the switch insertion loss increases by 1 dB over its low level  
value. P–1 dB is a measure of how much power the on switch can handle before the insertion loss increases by 1 dB.  
IP3  
Third-Order Intermodulation Intercept. This is a measure of the power in false tones that occur when closely spaced  
tones are passed through a switch, and the nonlinearity of the switch causes these false tones to be generated.  
Return Loss  
The Amount of Reflected Power Relative to the Incident Power at a Port. Large return loss indicates good matching. By  
measuring return loss, the voltage standing wave ratio (VSWR) can be calculated from conversion charts. VSWR indicates  
the degree of matching present at a switch RF port.  
Video  
Feedthrough  
Spurious Signals Present at the RF Ports of the Switch when the Control Voltage Is Switched from High to Low or Low to  
High without an RF Signal Present.  
Rev. C | Page 6 of 16  
 
Data Sheet  
ADG904/ADG904-R  
TYPICAL PERFORMANCE CHARACTERISTICS  
–0.3  
–0.4  
–0.5  
–0.6  
–0.7  
–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  
–2.8  
–2.9  
–3.0  
T
T
= –40°C  
A
–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  
–2.8  
–2.9  
–3.0  
V
V
V
= 2.25V  
= 2.75V  
= 2.50V  
DD  
DD  
DD  
= +25°C  
= +85°C  
A
T
A
T
= 25°C  
V
= 2.5V  
A
DD  
10k  
100k  
1M  
10M  
100M  
1G  
10G  
10G  
10G  
10k  
100k  
1M  
10M  
100M  
1G  
10G  
10G  
10G  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
Figure 7. Insertion Loss vs. Frequency over Supplies  
(RF1–RF4, S12, and S21)  
Figure 10. Insertion Loss vs. Frequency over Temperature  
((RF1–RF4, S12, and S21)  
–0.3  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
–90  
–100  
V
= 1.65V TO 2.75V  
DD  
–0.4  
–0.5  
–0.6  
–0.7  
–0.8  
–0.9  
–1.0  
–1.1  
V
V
V
= 2.50V  
= 2.75V  
= 2.25V  
DD  
DD  
DD  
S21  
S12  
T
= 25°C  
A
10k  
100k  
1M  
10M  
100M  
1G  
10k  
100k  
1M  
10M  
100M  
1G  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
Figure 8. Insertion Loss vs. Frequency over Supplies  
(RF1–RF4, S12, and S21). Zoomed Figure 7 Plot  
Figure 11. Isolation vs. Frequency over Supplies  
(RF1–RF4, S12, and S21)  
–0.3  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
–90  
–100  
V
DD  
= 2.5V  
–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  
–2.8  
–2.9  
–3.0  
V
= 1.65V  
= 1.80V  
= 1.95V  
DD  
DD  
DD  
V
V
T
=+85°C  
=+25°C  
A
T
A
T
= –40°C  
A
T
= 25°C  
A
10k  
100k  
1M  
10M  
100M  
1G  
10k  
100k  
1M  
10M  
100M  
1G  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
Figure 9. Insertion Loss vs. Frequency over Supplies  
(RF1–RF4, S12, and S21)  
Figure 12. Isolation vs. Frequency over Temperature  
(RF1–RF4, S12, and S21)  
Rev. C | Page 7 of 16  
 
 
ADG904/ADG904-R  
Data Sheet  
0
[
]
T
T
TRIG'D  
: 2.40mV  
–5  
A0  
–10  
–15  
–20  
1
3
OFF SWITCH  
–25  
–30  
–35  
RFC  
ON SWITCH  
V
= 2.5V  
DD  
= 25°C  
T
A
10k  
100k  
1M  
10M  
100M  
1G  
10G  
CH1 1.00V  
M 20.0ns  
FREQUENCY (Hz)  
CH3 1.00mV  
Figure 16. Video Feedthrough  
Figure 13. Return Loss vs. Frequency (RF1–RF4, S11)  
–10  
35  
30  
25  
20  
15  
10  
5
–20  
–30  
–40  
–50  
–60  
–70  
–80  
V
= 2.5V  
V
T
= 2.5V  
= 25°C  
DD  
= 25°C  
DD  
T
A
A
0
100  
10k  
100k  
1M  
10M  
100M  
1G  
10G  
200  
300  
400  
500  
600  
700  
800  
900  
FREQUENCY (Hz)  
FREQUENCY (MHz)  
Figure 14. Crosstalk vs. Frequency  
Figure 17. IP3 vs. Frequency  
18  
16  
14  
12  
10  
8
TEK RUN: 5.00GS/s ET ENVELOPE  
[
]
T
A1  
1
3
6
RF1/3  
4
2
V
= 2.5V  
DD  
T
= 25°C  
A
0
0
250  
500  
750  
1000  
1250  
1500  
FREQUENCY (MHz)  
CH1  
1.00V  
Ch2 100mV  
M 5.00ns  
CH3 100mV  
Figure 18. P-1 dB vs. Frequency  
Figure 15. Switch Timing  
Rev. C | Page 8 of 16  
Data Sheet  
ADG904/ADG904-R  
TEST CIRCUITS  
V
DD  
10F  
V
OUT  
V
DD  
DD  
R
50  
L
10F  
ADG904R  
V
DD  
RFx  
RF2  
NETWORK  
ANALYZER  
V
50  
RFC  
V
OUT  
RFx  
RFC  
50%  
50%  
50  
R
V
L
Ax  
V
V
S
S
50  
Ax  
90%  
10%  
1 0F 4  
DECODER  
V
OUT  
GND  
GND  
V
V
S
A0  
A1  
EN  
OUT  
INSERTION LOSS = 20log  
tON  
Figure 19. Switch Timing: tON, tOFF  
tOFF  
Figure 22. Insertion Loss  
V
DD  
10F  
V
V
DD  
NETWORK  
ANALYZER  
10F  
DD ADG904R  
V
RF1  
RF2  
50  
V
S
DD  
RFC  
50  
V
OUT  
RFx  
RFC  
50%  
50%  
V
OUT  
V
Ax  
R
L
R
50  
L
V
50  
S
90% 90%  
Ax  
10%  
10%  
V
OUT  
1 0F 4  
DECODER  
GND  
GND  
V
V
A0  
A1  
EN  
OUT  
CROSSTALK = 20log  
tRISE  
tFALL  
S
Figure 20. Switch Timing: tRISE, tFALL  
Figure 23. Crosstalk  
V
V
DD  
V
DD  
DD  
10F  
10F  
50  
V
S
DD ADG904R  
ADG904R  
V
V
OUT  
NC  
NC  
RF1  
RF2  
R
50  
L
RFx  
RF2  
RFC  
RFC  
OSCILLOSCOPE  
NETWORK  
ANALYZER  
50  
1 0F 4  
DECODER  
1 0F 4  
DECODER  
GND  
GND  
V
OUT  
A0  
A1  
EN  
OFF ISOLATION = 20log  
A0  
A1  
EN  
V
S
Figure 21. Off Isolation  
Figure 24. Video Feedthrough  
Rev. C | Page 9 of 16  
 
ADG904/ADG904-R  
Data Sheet  
V
V
DD  
DD  
10F  
10F  
V
DD ADG904R  
DD ADG904R  
V
RF1  
RF2  
RF1  
RF2  
50  
RF  
SOURCE  
50  
RFC  
SPECTRUM  
ANALYZER  
RFC  
SPECTRUM  
ANALYZER  
RF  
COMBINER  
SOURCE  
V
S
RF  
SOURCE  
1 0F 4  
DECODER  
1 0F 4  
DECODER  
GND  
GND  
A0  
A1  
EN  
A0  
A1  
EN  
Figure 25. IP3  
Figure 26. P-1 dB  
Rev. C | Page 10 of 16  
Data Sheet  
ADG904/ADG904-R  
APPLICATIONS  
The ADG904 and 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 communications systems from  
base stations to cell phones.  
VGA  
RF1  
RF2  
RF3  
RF4  
CABLE  
TUNER  
ADG904  
ANTENNA  
Figure 27. Tuner Modules  
The ADG9xx wideband switches are designed to meet the  
demands of devices that transmit at ISM band frequencies of  
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 of these  
parts make them cost-effective and an easy-to-integrate  
switching solution for many high frequency switching  
applications and low power applications where the parts can  
handle up to 16 dBm of power.  
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.  
RF1  
RF2  
RF3  
RF4  
RF1  
RF2  
RF3  
RF4  
ABSORPTIVE VS. REFLECTIVE  
RF  
RF  
OUT  
IN  
ADG904  
ADG904  
RFC  
RFC  
The ADG904 is an absorptive (matched) switch with 50 Ω  
terminated shunt legs; the ADG904-R is a reflective switch with  
0 Ω 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.  
Figure 28. Filter Selection  
Tx/Rx SWITCHING  
The low insertion loss and high isolation between ports ensure  
that the ADG904 and ADG904-R are suitable transmit/receive  
switches for all ISM band and wireless LAN, providing the  
required isolation between the transmit signal and the  
receive signal.  
The ADG904-R reflective switch is suitable for applications  
where high off port VSWR does not matter, and the switch has  
other performance features. It may be used in many applica-  
tions, including high speed filter selection. In most cases, an  
absorptive switch may be used instead of a reflective switch, but  
not vice versa.  
Rx  
ANTENNA  
Rx  
Rx  
Rx  
ADG904  
Tx  
ANTENNA DIVERSITY SWITCH  
The ADG904 is ideal for use as an antenna diversity switch,  
switching different antennas into 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.  
Figure 29. Tx/Rx Switching  
Rev. C | Page 11 of 16  
 
 
 
 
 
ADG904/ADG904-R  
EVALUATION BOARD  
Data Sheet  
The ADG904/ADG904-R evaluation board allows designers  
to evaluate the high performance, wideband switches with  
minimal effort.  
Only a power supply and a network analyzer, along with the  
evaluation board, are required to demonstrate that these devices  
meet user requirements. An application note, available with the  
evaluation board, provides complete operating information.  
The RFC port (see Figure 30) is connected through a 50 Ω  
transmission line to the bottom left SMA connector, J4. RF1,  
RF2, RF3, and RF4 are connected through 50 Ω transmission  
lines to SMA connectors J5, J6, J7, and J8, respectively. A through  
transmission line connects J9 and J10; this transmission line  
is used to estimate the loss of the PCB over the environmental  
conditions being evaluated.  
Figure 30. ADG904/ADG904-R Evaluation Board Top View  
The board is constructed of four-layer, FR4 material with a  
dielectric constant of 4.3 and an overall thickness of 0.062 inches.  
Two ground layers with grounded planes provide ground for  
the RF transmission lines. The transmission lines were designed  
using a coplanar waveguide with a ground plane model using  
a trace width of 0.024 inches, clearance to ground plane of  
0.008 inches, dielectric thickness of 0.02 inches, and a metal  
thickness of 0.0021 inches.  
Rev. C | Page 12 of 16  
 
 
Data Sheet  
ADG904/ADG904-R  
OUTLINE DIMENSIONS  
6.60  
6.50  
6.40  
20  
11  
10  
4.50  
4.40  
4.30  
6.40 BSC  
1
PIN 1  
0.65  
BSC  
1.20 MAX  
0.15  
0.05  
0.20  
0.09  
0.75  
0.60  
0.45  
8°  
0°  
0.30  
0.19  
COPLANARITY  
0.10  
SEATING  
PLANE  
COMPLIANT TO JEDEC STANDARDS MO-153-AC  
Figure 31. 20-Lead Thin Shrink Small Outline Package [TSSOP]  
(RU-20)  
Dimensions shown in millimeters  
4.10  
4.00 SQ  
3.90  
0.30  
0.25  
0.18  
PIN 1  
INDICATOR  
PIN 1  
INDICATOR  
16  
15  
20  
0.50  
BSC  
1
EXPOSED  
PAD  
2.30  
2.10 SQ  
2.00  
11  
5
6
10  
0.65  
0.60  
0.55  
0.20 MIN  
TOP VIEW  
BOTTOM VIEW  
FOR PROPER CONNECTION OF  
THE EXPOSED PAD, REFER TO  
THE PIN CONFIGURATION AND  
FUNCTION DESCRIPTIONS  
0.80  
0.75  
0.70  
0.05 MAX  
0.02 NOM  
COPLANARITY  
0.08  
SECTION OF THIS DATA SHEET.  
SEATING  
PLANE  
0.20 REF  
COMPLIANT TO JEDEC STANDARDS MO-220-WGGD-1.  
Figure 32. 20-Lead Lead Frame Chip Scale Package [LFCSP_WQ]  
4 mm × 4 mm Body, Very Very Thin Quad  
(CP-20-6)  
Dimensions shown in millimeters  
Rev. C | Page 13 of 16  
 
ADG904/ADG904-R  
Data Sheet  
ORDERING GUIDE  
Model1, 2  
Temperature Range  
–40°C to +85°C  
–40°C to +85°C  
–40°C to +85°C  
–40°C to +85°C  
–40°C to +85°C  
–40°C to +85°C  
–40°C to +85°C  
–40°C to +85°C  
Package Description  
Package Option  
ADG904BCPZ  
20-Lead Lead Frame Chip Scale Package [LFCSP_WQ] CP-20-6  
20-Lead Lead Frame Chip Scale Package [LFCSP_WQ] CP-20-6  
20-Lead Lead Frame Chip Scale Package [LFCSP_WQ] CP-20-6  
20-Lead Lead Frame Chip Scale Package [LFCSP_WQ] CP-20-6  
20-Lead Thin Shrink Small Outline Package [TSSOP]  
20-Lead Thin Shrink Small Outline Package (TSSOP)  
20-Lead Thin Shrink Small Outline Package (TSSOP)  
20-Lead Thin Shrink Small Outline Package (TSSOP)  
Evaluation Board  
ADG904BCPZ-R-REEL  
ADG904BCPZ-REEL  
ADG904BCPZ-REEL7  
ADG904BRUZ  
RU-20  
RU-20  
RU-20  
RU-20  
ADG904BRUZ-R  
ADG904BRUZ-REEL7  
ADW54011Z-0REEL7  
EVAL-ADG904EBZ  
EVAL-ADG904REBZ  
Evaluation Board  
1 Z = RoHS compliant part.  
2 W = Qualified for Automotive Applications.  
AUTOMOTIVE PRODUCTS  
The ADW54011Z model is available with controlled manufacturing to support the quality and reliability requirements of automotive  
applications. Note that this automotive model may have specifications that differ from the commercial models; therefore, designers  
should review the Specifications section of this data sheet carefully. Only the automotive grade product shown are available for use in  
automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to  
obtain the specific Automotive Reliability reports for this model.  
Rev. C | Page 14 of 16  
 
 
Data Sheet  
NOTES  
ADG904/ADG904-R  
Rev. C | Page 15 of 16  
ADG904/ADG904-R  
NOTES  
Data Sheet  
©2004–2013 Analog Devices, Inc. All rights reserved. Trademarks and  
registered trademarks are the property of their respective owners.  
D04504–0– /13(C)  
Rev. C | Page 16 of 16  

相关型号:

ADW54012Z-0REEL7

I2C&reg; CMOS 8 x 8 Unbuffered Analog Switch Array with Dual/Single Supplies
ADI

ADW71205WSTZ

12-Bit RDC with Reference Oscillator
ADI

ADW71205WSTZ-RL

12-Bit R/D Converter with Reference Oscillator
ADI

ADW71205YSTZ

12-Bit RDC with Reference Oscillator
ADI

ADW75001Z-0REEL7

Low Voltage Temperature Sensors
ADI

ADXL001

High Performance Wide Bandwidth Accelerometer
ADI

ADXL001-250

High Performance Wide Bandwidth Accelerometer
ADI

ADXL001-250BEZ

High Performance, Wide Bandwidth Accelerometer
ADI

ADXL001-250BEZ-R7

High Performance, Wide Bandwidth Accelerometer
ADI

ADXL001-500

High Performance Wide Bandwidth Accelerometer
ADI

ADXL001-500BEZ

High Performance, Wide Bandwidth Accelerometer
ADI

ADXL001-500BEZ-R7

High Performance, Wide Bandwidth Accelerometer
ADI