ADG936BCP-REEL7 [ROCHESTER]

DUAL 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, QCC20, 4 X 4 MM, MO-220VGGD-1, LFCSP-20;
ADG936BCP-REEL7
型号: ADG936BCP-REEL7
厂家: Rochester Electronics    Rochester Electronics
描述:

DUAL 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, QCC20, 4 X 4 MM, MO-220VGGD-1, LFCSP-20

光电二极管
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Wideband 4 GHz, 36 dB Isolation at 1 GHz,  
CMOS, 1.65 V to 2.75 V, Dual SPDT  
ADG936/ADG936-R  
FUNCTIONAL BLOCK DIAGRAMS  
FEATURES  
Wideband switch: −3 dB @ 4 GHz  
ADG936 absorptive dual SPDT  
RF1A  
RF1A  
ADG936-R reflective dual SPDT  
RFCA  
INA  
RFCA  
INA  
50Ω  
High off isolation (36 dB @ 1 GHz)  
Low insertion loss (0.9 dB dc to 1 GHz)  
Single 1.65 V to 2.75 V power supply  
CMOS/LVTTL control logic  
RF2A  
RF2A  
ADG936-R  
50Ω  
ADG936  
20-lead TSSOP and 4 mm × 4 mm LFCSP packages  
Low power consumption (1 μA maximum)  
RF1B  
RF2B  
RF1B  
RF2B  
RFCB  
INB  
RFCB  
INB  
50Ω  
APPLICATIONS  
Wireless communications  
General-purpose RF switching  
Dual-band applications  
High speed filter selection  
Digital transceiver front end switch  
IF switching  
50Ω  
Figure 1.  
Figure 2.  
Tuner modules  
Antenna diversity switching  
GENERAL DESCRIPTION  
compatible. The low power consumption of these CMOS  
devices makes them ideally suited for wireless applications and  
general-purpose high frequency switching.  
The ADG936/ADG936-R are wideband analog switches that  
comprise two independently selectable SPDT switches using a  
CMOS process to provide high isolation and low insertion loss  
to 1 GHz. The ADG936 is an absorptive/matched dual SPDT  
with 50 Ω terminated shunt legs; the ADG936-R is a reflective  
dual SPDT. These devices are designed such that the isolation is  
high over the dc to 1 GHz frequency range. They have on-board  
CMOS control logic, eliminating the need for external controlling  
circuitry. The control inputs are both CMOS and LVTTL  
PRODUCT HIGHLIGHTS  
1. –36 dB off isolation @ 1 GHz.  
2. 0.9 dB insertion loss @ 1 GHz.  
3. 20-lead TSSOP and 4 mm × 4 mm LFCSP packages.  
–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  
–2.8  
–2.9  
–3.0  
V
= 2.5V  
DD  
= 25°C  
T
A
–20  
–30  
–40  
–50  
–60  
–70  
–80  
V
= 2.5V  
DD  
S21  
S12  
T
= 25°C  
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. A  
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 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  
Fax: 781.461.3113  
www.analog.com  
© 2005 Analog Devices, Inc. All rights reserved.  
 
ADG936/ADG936-R  
TABLE OF CONTENTS  
Features .............................................................................................. 1  
Typical Performance Characteristics ..............................................7  
Test Circuits........................................................................................9  
Applications..................................................................................... 11  
Absorptive vs. Reflective ........................................................... 11  
Filter Selection ............................................................................ 11  
Tx/Rx Switching ......................................................................... 11  
Antenna Diversity Switch.......................................................... 11  
Evaluation Board ............................................................................ 12  
Outline Dimensions....................................................................... 13  
Ordering Guide .......................................................................... 14  
Applications....................................................................................... 1  
Functional Block Diagrams............................................................. 1  
General Description......................................................................... 1  
Product Highlights ........................................................................... 1  
Revision History ............................................................................... 2  
Specifications..................................................................................... 3  
Absolute Maximum Ratings............................................................ 4  
ESD Caution.................................................................................. 4  
Pin Configurations and Function Descriptions ........................... 5  
Terminology ...................................................................................... 6  
REVISION HISTORY  
8/05—Rev. 0 to Rev. A  
Changes to Table 1............................................................................ 3  
Changes to Figure 6.......................................................................... 5  
Changes to Ordering Guide .......................................................... 14  
7/04—Revision 0: Initial Version  
Rev. A | Page 2 of 16  
 
ADG936/ADG936-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
4
7
16  
0.5  
0.8  
1.25  
GHz  
GHz  
dBm  
dBm  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
ns  
ns  
ns  
ns  
dBm  
dBm  
mV p-p  
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  
Insertion Loss  
S21, S12  
S21, S12  
S21, S12  
S11, S22  
S11, S22  
0.4  
0.6  
0.9  
60  
47  
36  
69  
45  
37  
25  
23  
24  
24  
23  
21  
11  
10  
6.1  
6
Isolation—RFCx to RF1x/RF2x  
Crosstalk—RF1x to RF2x  
Return Loss (On Channel)4  
Return Loss (Off Channel)4  
52  
40  
31  
53  
42  
34  
20  
19  
16  
18  
17  
16  
1000 MHz  
On Switching Time4  
Off Switching Time4  
Rise Time4  
Fall Time4  
1 dB Compression4  
tON  
50% CTRL to 90% RF  
50% CTRL to 10% RF  
10% to 90% RF  
90% to 10% RF  
1000 MHz  
14  
13  
8
tOFF  
tRISE  
tFALL  
P–1 dB  
8
16  
32  
3
Third-Order Intermodulation Intercept IP3  
Video Feedthrough5  
900 MHz/901 MHz, 4 dBm  
27.5  
DC ELECTRICAL CHARACTERISTICS  
Input High Voltage  
VINH  
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
VINH  
VINL  
VINL  
II  
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  
CDIG  
f = 1 MHz  
f = 1 MHz  
2.5  
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 of B Version: −40°C to +85°C.  
2 Typical values are at VDD = 2.5 V and 25°C, unless otherwise noted.  
3 Operating frequency is the point at which insertion loss degrades by 1 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 from low to high in a 50 Ω test  
setup, measured with 1 ns rise time pulses and a 500 MHz bandwidth.  
Rev. A | Page 3 of 16  
 
ADG936/ADG936-R  
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.  
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  
Only one absolute maximum rating may be applied at any one  
time.  
θJA Thermal Impedance  
LFCSP Package  
θJA Thermal Impedance (4-Layer Board)  
Lead Temperature, Soldering (10 sec)  
IR Reflow, Peak Temperature (<20 sec)  
ESD  
143°C/W  
Table 3. Truth Table  
INx  
30.4°C/W  
300°C  
235°C  
1 kV  
RF1x  
Off  
On  
RF2x  
On  
Off  
0
1
1 RF1x/RF2x off port inputs to ground = –0.5 V to VDD – 0.5 V.  
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. A | Page 4 of 16  
 
ADG936/ADG936-R  
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS  
RFCA  
1
2
20 GND  
19 INA  
V
DD  
GND  
RF1A  
GND  
GND  
RF1B  
GND  
GND  
3
4
5
6
7
8
9
18 GND  
ADG936  
15 GND  
GND 1  
RF1A 2  
GND 3  
GND 4  
RF1B 5  
ADG936-R 17 RF2A  
ADG936  
14 RF2A  
13 GND  
12 GND  
11 RF2B  
16 GND  
15 GND  
14 RF2B  
13 GND  
12 INB  
TOP VIEW  
(Not to Scale)  
ADG936-R  
TOP VIEW  
(Not to Scale)  
RFCB 10  
11 GND  
NOTES  
1. EXPOSED PAD TIED TO SUBSTATE, GND.  
Figure 5. 20-Lead TSSOP (RU-20)  
Figure 6. 20-Lead 4 mm × 4 mm LFCSP (CP-20-1)  
Table 4. Pin Function Descriptions  
Pin No.  
20-Lead  
20-Lead  
TSSOP  
LFCSP  
Mnemonic  
Description  
1
2
18  
19  
RFCA  
VDD  
Common RF Port for Switch A.  
Power Supply Input. These parts can operate from 1.65 V to 2.75 V. VDD should be decoupled  
to GND.  
3, 5, 6, 8, 9, 1, 3, 4, 6, 7, GND  
Ground Reference Point for All Circuitry on the Part.  
11, 13, 15,  
16, 18, 20  
9, 12, 13,  
15, 17, 20  
4
7
2
5
8
10  
11  
14  
16  
RF1A  
RF1B  
RFCB  
INB  
RF2B  
RF2A  
INA  
RF1A Port.  
RF1B Port.  
Common RF Port for Switch B.  
Logic Control Input.  
RF2B Port.  
10  
12  
14  
17  
19  
RF2A Port.  
Logic Control Input.  
Rev. A | Page 5 of 16  
 
ADG936/ADG936-R  
TERMINOLOGY  
Table 5.  
Parameter  
Description  
VDD  
Most Positive Power Supply Potential.  
IDD  
Positive Supply Current.  
GND  
INx  
Ground (0 V) Reference.  
Logic Control Input.  
VINL  
Maximum Input Voltage for Logic 0.  
VINH  
Minimum Input Voltage for Logic 1.  
IINL (IINH  
)
Input Current of the Digital Input.  
CIN  
Digital Input Capacitance.  
tON  
tOFF  
tRISE  
tFALL  
Delay Between Applying the Digital Control Input and the Output Switching On.  
Delay Between Applying the Digital Control Input and the Output Switching Off.  
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.  
Off Isolation  
The Attenuation Between Input and Output Ports of the Switch When the Switch Control Voltage Is in the Off  
Condition.  
Insertion Loss  
The Attenuation Between Input and Output Ports of the Switch When the Switch Control Voltage Is in the On  
Condition.  
Crosstalk  
P–1 dB  
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 occurs when closely spaced  
tones are passed through a switch, whereby 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 from  
Low to High Without an RF Signal Present.  
Rev. A | Page 6 of 16  
 
ADG936/ADG936-R  
TYPICAL PERFORMANCE CHARACTERISTICS  
–0.3  
–0.4  
–0.5  
–0.6  
–0.7  
–0.8  
–0.9  
–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
T
= –40°C  
= +25°C  
= +85°C  
A
A
A
–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
= 2.75V  
DD  
V
= 2.50V  
DD  
V
= 2.25V  
DD  
T
= 25°C  
V
= 2.5V  
A
DD  
10k  
100k  
1M  
10M  
100M  
1G  
10G  
10k  
100k  
1M  
10M  
100M  
1G  
10G  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
Figure 7. Insertion Loss vs. Frequency over Supplies  
(S12 and S21)  
Figure 10. Insertion Loss vs. Frequency over Temperature  
(S12 and S21)  
–0.3  
–0.4  
–0.5  
–0.6  
–0.7  
–0.8  
–0.9  
–1.0  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
V
= 1.65V TO 2.75V  
DD  
= 25°C  
T
A
V
V
= 2.75V  
= 2.50V  
DD  
DD  
S21  
S12  
V
= 2.25V  
DD  
T
= 25°C  
A
10k  
100k  
1M  
10M  
100M  
1G  
10G  
10k  
100k  
1M  
10M  
100M  
1G  
10G  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
Figure 8. Insertion Loss vs. Frequency over Supplies  
(S12 and S21) (Zoomed Figure 7)  
Figure 11. Isolation vs. Frequency over Supplies  
–0.3  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
–90  
–100  
–110  
–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
= 2.5V  
DD  
V
V
V
= 1.95V  
= 1.80V  
= 1.65V  
DD  
DD  
DD  
T
= +85°C  
A
T
= +25°C  
A
T
= –40°C  
A
T
= 25°C  
A
10k  
100k  
1M  
10M  
100M  
1G  
10G  
10k  
100k  
1M  
10M  
100M  
1G  
10G  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
Figure 9. Insertion Loss vs. Frequency over Supplies  
(S12 and S21)  
Figure 12. Isolation vs. Frequency over Temperature  
Rev. A | Page 7 of 16  
 
 
ADG936/ADG936-R  
[
]
T
T
TEK RUN  
TRIG'D  
0
Δ : 2.20mV  
V
= 2.5V  
DD  
T
= 25°C  
A
INx  
–5  
–10  
–15  
–20  
–25  
–30  
1
3
RFCx  
OFF SWITCH  
ON SWITCH  
10M  
CH1 1.00VΩ  
CH3 1.00mVΩ  
20.0ns  
10k  
100k  
1M  
100M  
1G  
10G  
FREQUENCY (Hz)  
Figure 16. Video Feedthrough  
Figure 13. Return Loss vs. Frequency ( S11)  
35  
30  
25  
20  
15  
10  
5
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
–90  
V
= 2.5V  
= 25°C  
DD  
V
= 2.5V  
= 25°C  
DD  
T
A
T
A
0
100  
200  
300  
400  
500  
600  
700  
800  
900  
10k  
100k  
1M  
10M  
100M  
1G  
10G  
FREQUENCY (MHz)  
FREQUENCY (Hz)  
Figure 17. IP3 vs. Frequency  
Figure 14. Crosstalk vs. Frequency (S12 and S21)  
TEK RUN: 5.00GS/s ET ENVELOPE  
[
]
T
18  
16  
14  
12  
10  
8
INx  
1
3
RFx  
6
4
2
V
= 2.5V  
DD  
T
= 25°C  
A
0
CH1  
CH3 100mV  
1.00V  
CH2 100mV  
5.00ns  
0
250  
500  
750  
1000  
1250  
1500  
FREQUENCY (MHz)  
Figure 15. Switch Timing  
Figure 18. P–1 dB vs. Frequency  
Rev. A | Page 8 of 16  
ADG936/ADG936-R  
TEST CIRCUITS  
Similar setup for the ADG936. Additional pins omitted for clarity.  
V
DD  
10μF  
V
V
DD  
OUT  
10μF  
R
50Ω  
L
ADG936-R  
V
DD  
V
RF1x  
RF2x  
NETWORK  
ANALYZER  
DD  
50Ω  
RFCx  
V
OUT  
RFx  
RFCx  
50%  
50%  
R
V
L
INx  
50Ω  
V
INx  
S
50Ω  
V
INx  
S
90%  
10%  
V
OUT  
GND  
V
GND  
INx  
V
V
OUT  
INSERTION LOSS = 20log  
tON  
Figure 19. Switch Timing: tON, tOFF  
tOFF  
S
Figure 22. Insertion Loss  
V
DD  
10μF  
V
NETWORK  
ANALYZER  
DD  
ADG936-R  
V
DD  
10μF  
RF1x  
RF2x  
50Ω  
V
S
V
DD  
RFCx  
50Ω  
V
OUT  
RFx  
RFCx  
50%  
50%  
V
OUT  
V
INx  
R
L
INx  
R
50Ω  
L
50Ω  
V
S
90% 90%  
INx  
10%  
10%  
V
OUT  
GND  
V
INx  
GND  
V
V
OUT  
CROSSTALK = 20log  
tRISE  
tFALL  
S
Figure 23. Crosstalk  
Figure 20. Switch Timing: tRISE, tFALL  
V
DD  
V
V
DD  
10μF  
10μF  
50Ω  
V
S
ADG936-R  
V
DD  
ADG936-R  
DD  
V
OUT  
RF1x  
R
L
50Ω  
NC  
NC  
RF1x  
RF2x  
RFC  
INx  
RFCx  
INx  
OSCILLOSCOPE  
NETWORK  
ANALYZER  
RF2x  
50Ω  
GND  
V
INx  
V
INx  
GND  
V
OUT  
OFF ISOLATION = 20log  
V
S
Figure 21. Off Isolation  
Figure 24. Video Feedthrough  
Rev. A | Page 9 of 16  
 
ADG936/ADG936-R  
V
V
V
DD  
DD  
10μF  
10μF  
V
ADG936-R  
ADG936-R  
DD  
DD  
RF1x  
RF2x  
RF1x  
RF2x  
50Ω  
RF  
SOURCE  
50Ω  
RFCx  
INx  
SPECTRUM  
ANALYZER  
RFCx  
INx  
SPECTRUM  
ANALYZER  
RF  
COMBINER  
SOURCE  
V
S
RF  
SOURCE  
V
GND  
V
INx  
GND  
INx  
Figure 25. IP3  
Figure 26. P–1 dB  
Rev. A | Page 10 of 16  
ADG936/ADG936-R  
APPLICATIONS  
The ADG936/ADG936-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 can be used  
in applications such as switchable filters, transmitters and  
receivers for radar systems, and communication systems from  
base stations to cell phones.  
FILTER SELECTION  
The ADG936 and ADG936-R can be used to switch high  
frequency signals between different filters and to multiplex the  
signal to the output. These dual SPDT switches are also ideal for  
high speed signal routing and for switching high speed differential  
signals.  
RF1A  
RF2A  
RF1B  
RF2B  
RF1A  
RF2A  
RF1B  
RF2B  
The ADG9xx family of wideband switches is 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 and low power applications,  
because the parts can handle up to 16 dBm of power.  
RF  
RF  
RF  
RF  
IN  
IN  
OUT  
OUT  
RFCA  
RFCB  
RFCA  
RFCB  
ADG936  
ADG936  
Figure 27. Filter Selection  
Tx/Rx SWITCHING  
ABSORPTIVE VS. REFLECTIVE  
The low insertion loss and high isolation between ports ensure  
that the ADG936/ADG936-R are suitable transmit/receive  
switches for all ISM band and wireless LAN applications,  
providing the required isolation between the transmit and  
receive signals.  
The ADG936 is an absorptive (matched) switch with 50 Ω  
terminated shunt legs; the ADG936-R is a reflective switch with  
0 Ω terminated shunts to ground. The ADG936 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 ADG936  
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.  
LNA  
ANTENNA  
PA  
RFCA  
ADG936  
RF1B  
RF2B  
RF1B  
RF2B  
RFCB  
The ADG936-R reflective switch is suitable for applications in  
which high off-port VSWR does not matter. The switch also has  
some other desired performance features. 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.  
Figure 28. Tx/Rx Switching  
ANTENNA DIVERSITY SWITCH  
The ADG936/ADG936-R are ideal for use as antenna diversity  
switches, switching in different antennas to the tuner. The low  
insertion loss, which ensures minimum signal loss and high  
isolation between channels, makes these dual SPDT switches  
suitable for switching applications in tuner modules and set-top  
boxes.  
Rev. A | Page 11 of 16  
 
ADG936/ADG936-R  
EVALUATION BOARD  
The ADG936 and ADG936-R evaluation board allows  
designers to evaluate these high performance wideband  
switches with minimal effort.  
To prove that these devices meet the users requirements, only a  
power supply and a network analyzer, along with the evaluation  
board, are required. An application note available with the  
evaluation board gives complete information on operating the  
evaluation board.  
The RFCA port is connected through a 50 Ω transmission line  
to SMA Connector J3. The RFCB port is connected through a  
50 Ω transmission line to SMA Connector J4. RF1A, RF2A,  
RF1B, and RF2B 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.  
The board is constructed of a 4-layer FR4 material with a  
dielectric constant of 4.3 and an overall thickness of 0.062 in.  
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 in, a clearance to ground plane of 0.008 in,  
a dielectric thickness of 0.02 in, and a metal thickness of  
0.0021 in.  
Figure 29. ADG936 and ADG936-R Evaluation Board Top View  
Rev. A | Page 12 of 16  
 
ADG936/ADG936-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 30. 20-Lead Thin Shrink Small Outline Package [TSSOP]  
(RU-20)  
Dimensions shown in millimeters  
0.60  
MAX  
4.00  
BSC SQ  
PIN 1  
INDICATOR  
0.60  
MAX  
20  
1
16  
15  
PIN 1  
INDICATOR  
2.25  
2.10 SQ  
1.95  
TOP  
VIEW  
3.75  
BCS SQ  
11  
10  
5
6
0.75  
0.55  
0.35  
0.25 MIN  
0.80 MAX  
0.65 TYP  
0.30  
0.23  
0.18  
12° MAX  
1.00  
0.85  
0.80  
0.05 MAX  
0.02 NOM  
0.20  
REF  
SEATING  
PLANE  
COPLANARITY  
0.08  
0.50  
BSC  
COMPLIANT TO JEDEC STANDARDS MO-220-VGGD-1  
Figure 31. 20-Lead Lead Frame Chip Scale Package [LFCSP_VQ]  
4 mm × 4 mm Body, Very Thin Quad  
(CP-20-1)  
Dimensions shown in millimeters  
Rev. A | Page 13 of 16  
 
ADG936/ADG936-R  
ORDERING GUIDE  
Model  
ADG936BRU  
ADG936BRU-500RL7  
ADG936BRU-REEL  
ADG936BRU-REEL7  
ADG936BRUZ1  
ADG936BRUZ-REEL1  
ADG936BRUZ-REEL71  
ADG936BCP  
ADG936BCP-500RL7  
ADG936BCP-REEL  
ADG936BCP-REEL7  
ADG936BCPZ1  
ADG936BCPZ-REEL1  
ADG936BCPZ-REEL71  
EVAL-ADG936EB  
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  
–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  
RU-20  
RU-20  
RU-20  
RU-20  
RU-20  
RU-20  
RU-20  
CP-20-1  
CP-20-1  
CP-20-1  
CP-20-1  
CP-20-1  
CP-20-1  
CP-20-1  
RU-20  
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)  
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 Lead Frame Chip Scale Package (LFCSP_VQ)  
20-Lead Lead Frame Chip Scale Package (LFCSP_VQ)  
20-Lead Lead Frame Chip Scale Package (LFCSP_VQ)  
20-Lead Lead Frame Chip Scale Package (LFCSP_VQ)  
20-Lead Lead Frame Chip Scale Package (LFCSP_VQ)  
20-Lead Lead Frame Chip Scale Package (LFCSP_VQ)  
20-Lead Lead Frame Chip Scale Package (LFCSP_VQ)  
Evaluation Board  
ADG936BRU-R  
–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  
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)  
20-Lead Lead Frame Chip Scale Package (LFCSP_VQ)  
20-Lead Lead Frame Chip Scale Package (LFCSP_VQ)  
20-Lead Lead Frame Chip Scale Package (LFCSP_VQ)  
20-Lead Lead Frame Chip Scale Package (LFCSP_VQ)  
Evaluation Board  
RU-20  
RU-20  
RU-20  
RU-20  
CP-20-1  
CP-20-1  
CP-20-1  
CP-20-1  
RU-20  
ADG936BRU-R-500RL7  
ADG936BRU-R-REEL  
ADG936BRU-R-REEL7  
ADG936BCP-R  
ADG936BCP-R-500RL7  
ADG936BCP-R-REEL  
ADG936BCP-R-REEL7  
EVAL-ADG936REB  
1 Z = PB-free part.  
Rev. A | Page 14 of 16  
 
ADG936/ADG936-R  
NOTES  
Rev. A | Page 15 of 16  
ADG936/ADG936-R  
NOTES  
©
2005 Analog Devices, Inc. All rights reserved. Trademarks and  
registered trademarks are the property of their respective owners.  
D04503–0–8/05(A)  
Rev. A | Page 16 of 16  

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