ADRF5025-EVALZ [ADI]

Silicon SPDT Switch, Reflective, 9 kHz to 44 GHz;
ADRF5025-EVALZ
型号: ADRF5025-EVALZ
厂家: ADI    ADI
描述:

Silicon SPDT Switch, Reflective, 9 kHz to 44 GHz

光电二极管
文件: 总13页 (文件大小:446K)
中文:  中文翻译
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Silicon SPDT Switch, Reflective,  
9 kHz to 44 GHz  
Data Sheet  
ADRF5025  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Ultrawideband frequency range: 9 kHz to 44 GHz  
Reflective design  
Low insertion loss with impedance match  
0.9 dB typical to 18 GHz  
ADRF5025  
VSS  
1.4 dB typical to 40 GHz  
1.6 dB typical to 44 GHz  
Low insertion loss without impedance match  
0.9 dB typical to 18 GHz  
RFC  
CTRL  
VDD  
1.7 dB typical to 40 GHz  
2.2 dB typical to 44 GHz  
High input linearity  
P1dB: 27.5 dBm typical  
IP3: 50 dBm typical  
Figure 1.  
High RF input power handling  
Through path: 27 dBm  
Hot switching: 27 dBm  
No low frequency spurious  
RF settling time (50% VCTL to 0.1 dB final RF output): 3.4 µs  
12-terminal, 2.25 mm × 2.25 mm LGA package  
Pin compatible with the ADRF5024 fast switching version  
APPLICATIONS  
Industrial scanners  
Test and instrumentation  
Cellular infrastructure: 5G mmWave  
Military radios, radars, electronic counter measures (ECMs)  
Microwave radios and very small aperture terminals (VSATs)  
GENERAL DESCRIPTION  
The ADRF5025 is a reflective single-pole double-throw (SPDT)  
switch, manufactured in silicon process.  
The ADRF5025 is pin compatible with the ADRF5024, low  
frequency cutoff version, which operates from 100 MHz to  
44 GHz.  
This switch operates from 9 kHz to 44 GHz with better than  
1.6 dB of insertion loss and 35 dB of isolation. The ADRF5025  
has an radio frequency (RF) input power handling capability of  
27 dBm for both the through path and hot switching.  
The ADRF5025 RF ports are designed to match a characteristic  
impedance of 50 Ω. For ultrawideband products, impedance  
matching on the RF transmission lines can further optimize high  
frequency insertion loss and return loss characteristics. Refer to  
the Electrical Specifications section, Typical Performance  
Characteristics section, and Applications Information section  
for more details.  
The ADRF5025 draws a low current of 14 µA on the positive  
supply of +3.3 V and 120 µA on negative supply of −3.3 V. The  
device employs complementary metal-oxide semiconductor  
(CMOS)-/low voltage transistor to transistor logic (LVTTL)-  
compatible controls.  
The ADRF5025 comes in a 2.25 mm × 2.25 mm, 12-terminal,  
RoHS-compliant, land grid array (LGA) package and can  
operate from −40°C to +105°C.  
Rev. B  
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Tel: 781.329.4700 ©2018–2020 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
ADRF5025  
Data Sheet  
TABLE OF CONTENTS  
Features.............................................................................................. 1  
Interface Schematics .....................................................................6  
Typical Performance Characteristics .............................................7  
Insertion Loss, Return Loss, and Isolation ................................7  
Input Power Compression and Third-Order Intercept ..........8  
Theory of Operation .........................................................................9  
Applications Information ............................................................. 10  
Evaluation Board........................................................................ 10  
Probe Matrix Board ................................................................... 12  
Outline Dimensions....................................................................... 13  
Ordering Guide .......................................................................... 13  
Applications ...................................................................................... 1  
Functional Block Diagram .............................................................. 1  
General Description......................................................................... 1  
Revision History ............................................................................... 2  
Specifications .................................................................................... 3  
Electrical Specifications............................................................... 3  
Absolute Maximum Ratings ........................................................... 5  
Thermal Resistance...................................................................... 5  
Power Derating Curves ............................................................... 5  
ESD Caution.................................................................................. 5  
Pin Configuration and Function Descriptions ............................ 6  
REVISION HISTORY  
5/2020—Rev. A to Rev. B  
5/2018—Rev. 0 to Rev. A  
Changes to Return Loss Parameter, Table 1................................. 3  
Changes to Table 2 ........................................................................... 5  
Changes to Insertion Loss, Return Loss, and Isolation Section,  
Figure 7, and Figure 10.................................................................... 7  
Changes to Theory of Operation Section...................................... 9  
Change to Input Linearity Parameter, Table 1..............................4  
Change to RF Input Power Parameter, Table 2 ............................5  
Updated Outline Dimensions ...................................................... 13  
Changes to Ordering Guide.......................................................... 13  
5/2018—Revision 0: Initial Version  
Rev. B | Page 2 of 13  
 
Data Sheet  
ADRF5025  
SPECIFICATIONS  
ELECTRICAL SPECIFICATIONS  
VDD = 3.3 V, VSS = −3.3 V, VCTL = 0 V or 3.3 V, and case temperature (TCASE) = 25°C for a 50 Ω system, unless otherwise noted.  
Table 1.  
Parameter  
Symbol  
Test Conditions/Comments  
Min  
Typ  
Max  
Unit  
FREQUENCY RANGE  
INSERTION LOSS  
f
0.009  
44,000  
MHz  
Between RFC and RF1/RF2 (On)  
With Impedance Match  
See Figure 24  
9 kHz to 18 GHz  
18 GHz to 26 GHz  
26 GHz to 35 GHz  
35 GHz to 40 GHz  
40 GHz to 44 GHz  
See Figure 25  
0.9  
1.2  
1.3  
1.4  
1.6  
dB  
dB  
dB  
dB  
dB  
Without Impedance Match  
9 kHz to 18 GHz  
18 GHz to 26 GHz  
26 GHz to 35 GHz  
35 GHz to 40 GHz  
40 GHz to 44 GHz  
0.9  
1.0  
1.4  
1.7  
2.2  
dB  
dB  
dB  
dB  
dB  
RETURN LOSS  
RFC and RF1/RF2 (On)  
With Impedance Match  
See Figure 24  
9 kHz to 18 GHz  
18 GHz to 26 GHz  
26 GHz to 35 GHz  
35 GHz to 40 GHz  
40 GHz to 44 GHz  
See Figure 25  
17  
13  
12  
13  
18  
dB  
dB  
dB  
dB  
dB  
Without Impedance Match  
9 kHz to 18 GHz  
18 GHz to 26 GHz  
26 GHz to 35 GHz  
35 GHz to 40 GHz  
40 GHz to 44 GHz  
20  
20  
13  
11  
10  
dB  
dB  
dB  
dB  
dB  
ISOLATION  
Between RFC and RF1/RF2  
9 kHz to 18 GHz  
18 GHz to 26 GHz  
26 GHz to 35 GHz  
35 GHz to 40 GHz  
40 GHz to 44 GHz  
9 kHz to 18 GHz  
18 GHz to 26 GHz  
26 GHz to 35 GHz  
35 GHz to 40 GHz  
40 GHz to 44 GHz  
42  
41  
39  
36  
35  
48  
46  
44  
43  
40  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
Between RF1 and RF2  
SWITCHING CHARACTERISTICS  
Rise and Fall Time  
On and Off Time  
RF Settling Time  
0.1 dB  
tRISE, tFALL  
tON, tOFF  
10% to 90% of RF output  
50% VCTL to 90% of RF output  
0.6  
1.7  
µs  
µs  
50% VCTL to 0.1 dB of final RF output  
50% VCTL to 0.05 dB of final RF output  
3.4  
4.2  
µs  
µs  
0.05 dB  
Rev. B | Page 3 of 13  
 
 
 
ADRF5025  
Data Sheet  
Parameter  
Symbol  
Test Conditions/Comments  
Min  
Typ  
Max  
Unit  
INPUT LINEARITY1  
1 dB Power Compression  
Third-Order Intercept  
5 MHz to 40 GHz  
P1dB  
IP3  
27.5  
50  
dBm  
dBm  
Two tone input power = 12 dBm each tone,  
Δf = 1 MHz  
SUPPLY CURRENT  
Positive Supply Current  
Negative Supply Current  
DIGITAL CONTROL INPUTS  
Voltage  
VDD and VSS pins  
IDD  
ISS  
14  
120  
µA  
µA  
CTRL pin  
Low  
High  
VINL  
VINH  
0
1.2  
0.8  
3.3  
V
V
Current  
Low and High  
IINL, IINH  
<1  
µA  
RECOMMENDED OPERATING CONDITONS  
Supply Voltage  
Positive  
VDD  
VSS  
VCTL  
PIN  
3.15  
−3.45  
0
3.45  
−3.15  
VDD  
V
V
V
Negative  
Digital Control Voltage  
RF Input Power2  
Through Path  
f = 5 MHz to 40 GHz, TCASE = 85°C3  
RF signal is applied to RFC or through  
connected RF1/RF2  
RF signal is present at RFC while switching  
between RF1 and RF2  
27  
dBm  
dBm  
°C  
Hot Switching  
27  
Case Temperature  
TCASE  
−40  
+105  
1 For input linearity performance over frequency, see Figure 13 to Figure 16.  
2 For power derating over frequency, see Figure 2 and Figure 3.  
3 For 105°C operation, the power handling degrades from the TCASE = 85°C specification by 3 dB.  
Rev. B | Page 4 of 13  
Data Sheet  
ADRF5025  
ABSOLUTE MAXIMUM RATINGS  
For the recommended operating conditions, see Table 1.  
Table 3. Thermal Resistance  
Package Type  
θJC  
Unit  
Table 2.  
CC-12-3, Through Path  
352  
°C/W  
Parameter  
Rating  
Positive Supply Voltage  
Negative Supply Voltage  
Digital Control Input Voltage  
Voltage  
−0.3 V to +3.6 V  
−3.6 V to +0.3 V  
POWER DERATING CURVES  
2
−0.3 V to VDD + 0.3 V  
3 mA  
0
–2  
Current  
RF Input Power1 (f = 5 MHz to 40 GHz,  
TCASE = 85°C2)  
–4  
Through Path  
Hot Switching  
RF Input Power Under Unbiased  
Condition1 (VDD, VSS = 0 V)  
27.5 dBm  
27.5 dBm  
21 dBm  
–6  
–8  
Temperature  
Junction, TJ  
Storage Range  
Reflow  
–10  
–12  
–14  
135°C  
−65°C to +150°C  
260°C  
10k  
100k  
1M  
10M  
100M  
1G  
10G  
100G  
ESD Sensitivity  
FREQUENCY (Hz)  
Human Body Model (HBM)  
RFC, RF1, and RF2 Pins  
Digital Pins  
Figure 2. Power Derating vs. Frequency, Low Frequency Detail, TCASE = 85°C  
1000 V  
2000 V  
1250 V  
2
Charged Device Model (CDM)  
0
–2  
1 For power derating vs. frequency, see Figure 2 and Figure 3. This power  
derating is applicable for insertion loss path and hot switching power  
specifications.  
–4  
2 For 105°C operation, the power handling degrades from the TCASE = 85°C  
specification by 3 dB.  
–6  
Stresses at or above those listed under Absolute Maximum  
Ratings may cause permanent damage to the product. This is a  
stress rating only; functional operation of the product at these  
or any other conditions above those indicated in the  
operational section of this specification is not implied.  
Operation beyond the maximum operating conditions for  
extended periods may affect product reliability.  
–8  
–10  
–12  
–14  
35  
38  
41  
44  
47  
50  
FREQUENCY (GHz)  
Only one absolute maximum rating can be applied at any one  
time.  
Figure 3. Power Derating vs. Frequency, High Frequency Detail, TCASE = 85°C  
ESD CAUTION  
THERMAL RESISTANCE  
Thermal performance is directly linked to printed circuit board  
(PCB) design and operating environment. Careful attention to  
PCB thermal design is required.  
θJC is the junction to case bottom (channel to package bottom)  
thermal resistance.  
Rev. B | Page 5 of 13  
 
 
 
 
 
 
ADRF5025  
Data Sheet  
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS  
12 11  
10  
9
8
7
1
2
3
VSS  
GND  
RFC  
GND  
ADRF5025  
CTRL  
TOP VIEW  
(Not to Scale)  
VDD  
4
5
6
NOTES  
1. EXPOSED PAD MUST BE CONNECTED  
TO THE RF/DC GROUND OF THE PCB.  
Figure 4. Pin Configuration (Top View)  
Table 4. Pin Function Descriptions  
Pin No.  
Mnemonic  
Description  
Ground. These pins must be connected to the RF/dc ground of the PCB.  
RF Common Port. This pin is dc-coupled to 0 V and ac matched to 50 Ω. No dc blocking capacitor is  
necessary when the RF line potential is equal to 0 V dc. See Figure 5 for the interface schematic.  
1, 3, 4, 6, 10, 12  
2
GND  
RFC  
5
RF1  
RF Port 1. This pin is dc-coupled to 0 V and ac matched to 50 Ω. No dc blocking capacitor is necessary when  
the RF line potential is equal to 0 V dc. See Figure 5 for the interface schematic.  
7
8
9
VDD  
CTRL  
VSS  
Positive Supply Voltage.  
Control Input Voltage. See Figure 6 for the interface schematic.  
Negative Supply Voltage.  
11  
RF2  
RF Port 2. This pin is dc-coupled to 0 V and ac matched to 50 Ω. No dc blocking capacitor is necessary when  
the RF line potential is equal to 0 V dc. See Figure 5 for the interface schematic.  
EPAD  
Exposed Pad. The exposed pad must be connected to the RF/dc ground of the PCB.  
INTERFACE SCHEMATICS  
VDD  
VDD  
RFC,  
RF1,  
RF2  
CTRL  
Figure 5. RFx Pins Interface Schematic  
Figure 6. CTRL Interface Schematic  
Rev. B | Page 6 of 13  
 
 
 
 
Data Sheet  
ADRF5025  
TYPICAL PERFORMANCE CHARACTERISTICS  
INSERTION LOSS, RETURN LOSS, AND ISOLATION  
VDD = 3.3 V, VSS = −3.3 V, VCTL = 0 V or VDD, and TCASE = 25°C for a 50 Ω system, unless otherwise noted.  
Insertion loss and return loss are measured on the probe matrix board using ground-signal-ground (GSG) probes close to the RFx pins.  
See the Applications Information section for details on the evaluation and probe matrix boards.  
0
–0.5  
–1.0  
–1.5  
–2.0  
–2.5  
–3.0  
–3.5  
–4.0  
0
–0.5  
–1.0  
–1.5  
–2.0  
–2.5  
–3.0  
–3.5  
–4.0  
T
T
T
T
T
= +105°C  
= +85°C  
= +25°C  
= –40°C  
= –55°C  
T
T
T
T
T
= +105°C  
= +85°C  
= +25°C  
= –40°C  
= –55°C  
CASE  
CASE  
CASE  
CASE  
CASE  
CASE  
CASE  
CASE  
CASE  
CASE  
0
5
10  
15  
20  
25  
30  
35  
40  
45  
50  
0
5
10  
15  
20  
25  
30  
35  
40  
45  
50  
FREQUENCY (GHz)  
FREQUENCY (GHz)  
Figure 7. Insertion Loss vs. Frequency with Impedance Match  
Figure 10. Insertion Loss vs. Frequency Without Impedance Match  
0
0
RFC  
RFC  
RF1 ON  
RF2 ON  
RF1 ON  
RF2 ON  
–5  
–5  
–10  
–15  
–20  
–25  
–30  
–35  
–40  
–10  
–15  
–20  
–25  
–30  
–35  
–40  
0
5
10  
15  
20  
25  
30  
35  
40  
45  
50  
0
5
10  
15  
20  
25  
30  
35  
40  
45  
50  
FREQUENCY (GHz)  
FREQUENCY (GHz)  
Figure 8. Return Loss vs. Frequency for RFC and RFx (On)  
with Impedance Match  
Figure 11. Return Loss vs. Frequency for RFC and RFx (On)  
Without Impedance Match  
0
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
0
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
RFC TO RFx  
RFx TO RFx  
RFC TO RFx  
RFx TO RFx  
0
5
10  
15  
20  
25  
30  
35  
40  
45  
50  
0
5
10  
15  
20  
25  
30  
35  
40  
45  
50  
FREQUENCY (GHz)  
FREQUENCY (GHz)  
Figure 12. Isolation vs. Frequency Without Impedance Match  
Figure 9. Isolation vs. Frequency with Impedance Match  
Rev. B | Page 7 of 13  
 
 
ADRF5025  
Data Sheet  
INPUT POWER COMPRESSION AND THIRD-ORDER INTERCEPT  
VDD = 3.3 V, VSS = −3.3 V, VCTL = 0 V or VDD, and TCASE = 25°C for a 50 Ω system, unless otherwise noted. All of the large signal  
performance parameters were measured on the evaluation board.  
30  
28  
26  
24  
22  
20  
18  
16  
14  
12  
10  
30  
28  
26  
24  
22  
20  
18  
16  
14  
12  
10  
0
5
10  
15  
20  
25  
30  
35  
40  
10k  
100k  
1M  
10M  
100M  
1G  
FREQUENCY (GHz)  
FREQUENCY (Hz)  
Figure 13. Input P1dB vs. Frequency  
Figure 15. Input P1dB vs. Frequency (Low Frequency Detail)  
60  
55  
50  
45  
40  
35  
30  
25  
20  
60  
55  
50  
45  
40  
35  
30  
25  
20  
0
5
10  
15  
20  
25  
30  
35  
40  
10k  
100k  
1M  
10M  
100M  
1G  
FREQUENCY (GHz)  
FREQUENCY (Hz)  
Figure 16. Input IP3 vs. Frequency over Temperature (Low Frequency Detail)  
Figure 14. Input IP3 vs. Frequency over Temperature  
Rev. B | Page 8 of 13  
 
 
 
Data Sheet  
ADRF5025  
THEORY OF OPERATION  
The ADRF5025 requires a positive supply voltage applied to the  
VDD pin and a negative supply voltage applied to the VSS pin.  
Bypassing capacitors are recommended on the supply lines to  
filter high frequency noise.  
The unselected RF port of the ADRF5025 is reflective. The  
isolation path provides high isolation between the unselected  
port and the insertion loss path.  
The ideal power-up sequence is as follows:  
All of the RF ports (RFC, RF1, and RF2) are dc-coupled to 0 V,  
and no dc blocking is required at the RF ports when the RF line  
potential is equal to 0 V.  
1. Connect GND.  
2. Power up VDD and VSS. Power up VSS after VDD to  
avoid current transients on VDD during ramp-up.  
3. Apply the digital control inputs. The relative order of the  
control inputs is not important. However, powering the  
digital control inputs before the VDD supply may  
inadvertently forward bias and damage the internal ESD  
protection structures. To avoid this damage, use a series  
1 kΩ resistor to limit the current flowing in to the control  
pin. Use pull-up or pull-down resistors if the controller is  
in a high impedance state after VDD is powered up and  
the control pins are not driven to a valid logic state.  
4. Apply an RF input signal.  
The RF ports are internally matched to 50 Ω. Therefore,  
external matching networks are not required. However,  
impedance matching on transmission lines can be used to  
improve insertion loss and return loss performance at high  
frequencies.  
The ADRF5025 integrates a driver to perform logic functions  
internally and provides the user with the advantage of a  
simplified CMOS/LVTTL-compatible control interface. This  
driver features a single digital control input pin, CTRL. The  
logic level applied to the CTRL pin determines which RF port is  
in the insertion loss state and in the isolation state (see Table 5).  
The ideal power-down sequence is the reverse order of the  
power-up sequence.  
Table 5. Control Voltage Truth Table  
RF Path  
Digital Control Input (VCTRL  
)
RF1 to RFC  
RF2 to RFC  
Insertion loss (on)  
Low  
Isolation (off)  
High  
Insertion loss (on)  
Isolation (off)  
Rev. B | Page 9 of 13  
 
 
ADRF5025  
Data Sheet  
APPLICATIONS INFORMATION  
THRU CAL can be used to calibrate out the board loss effects  
from the ADRF5025-EVALZ evaluation board measurements to  
determine the device performance at the pins of the IC. Figure 19  
shows the typical board loss for the ADRF5025-EVALZ  
evaluation board at room temperature, the embedded insertion  
loss, and the de-embedded insertion loss for ADRF5025.  
0
EVALUATION BOARD  
The ADRF5025-EVALZ is a 4-layer evaluation board. The outer  
copper (Cu) layers are 0.5 oz (0.7 mil) plated to 1.5 oz (2.2 mil)  
and are separated by dielectric materials. Figure 17 shows the  
evaluation board stackup.  
G = 7mil  
W = 14mil  
1.5oz Cu (2.2mil)  
1.5oz Cu (2.2mil)  
1.5oz Cu (2.2mil)  
T = 2.2mil  
H = 8mil  
–1  
–2  
–3  
–4  
–5  
RO4003  
0.5oz Cu (0.7mil)  
0.5oz Cu (0.7mil)  
1.5oz Cu (2.2mil)  
–6  
THRU LOSS  
EMBEDDED INSERTION LOSS  
DEEMBEDDED INSERTION LOSS  
–7  
0
5
10  
15  
20  
25  
30  
35  
40  
45  
50  
Figure 17. Evaluation Board (Cross Section View)  
FREQUENCY (GHz)  
All RF and dc traces are routed on the top copper layer,  
whereas the inner and bottom layers are grounded planes that  
provide a solid ground for the RF transmission lines. The top  
dielectric material is 8 mil Rogers RO4003, offering optimal  
high frequency performance. The middle and bottom dielectric  
materials provide mechanical strength. The overall board  
thickness is 62 mil, which allows 2.4 mm RF launchers to  
be connected at the board edges.  
Figure 19. Insertion Loss vs. Frequency  
Figure 20 shows the actual ADRF5025-EVALZ with its  
component placement.  
Two power supply ports are connected to the VDD and VSS  
test points, TP7 and TP5 (or TP3 and TP1 if using without the  
impedance match circuit), and the ground reference is  
connected to the GND test point, TP4 or TP8. On the supply  
traces, VDD and VSS, a 100 pF bypass capacitor filters high  
frequency noise. Additionally, unpopulated components  
positions are available for applying extra bypass capacitors.  
WITHOUT  
IMPEDANCE  
MATCH  
WITH  
IMPEDANCE  
MATCH  
A control port is connected to the CTRL test point, TP6 (or  
TP2 for without the impedance match circuit). There are  
provisions for the resistor capacitor (RC) filter to eliminate dc-  
coupled noise, if needed, by the application. The resistor can  
also improve the isolation between the RF and the control signal.  
Figure 18. Evaluation Board Layout, Top View  
The RF input and output ports (RFC, RF1, and RF2) are  
connected through 50 Ω transmission lines to the 2.4 mm  
RF launchers, J10, J9, and J8 (or J2, J3, and J1 for the without  
impedance match circuit), respectively. These high frequency  
RF launchers are by contact and are not soldered to the board.  
A THRU cal line connects the unpopulated J6 and J7 launchers  
(or J4 and J5 for without the impedance match circuit). This  
transmission line is used to estimate the loss due to the PCB  
over the environmental conditions being evaluated.  
The RF transmission lines were designed using a coplanar  
waveguide (CPWG) model, with trace width of 14 mil and  
ground clearance of 7 mil to have a characteristic impedance of  
50 Ω. For optimal RF and thermal grounding, as many plated  
through vias as possible are arranged around transmission lines  
and under the exposed pad of the package.  
The ADRF5025-EVALZ has two layouts implemented; with  
and without impedance matching. By default, the impedance  
matched circuit is populated. For more details on the impedance  
matched circuit, refer to Impedance Matching in the Probe  
Matrix Board section.  
The schematic of the ADRF5025-EVALZ evaluation board  
is shown in Figure 21.  
Rev. B | Page 10 of 13  
 
 
 
 
Data Sheet  
ADRF5025  
Figure 20. Evaluation Board Component Placement  
RF2  
EPAD  
VSS  
VCTRL  
VDD  
9
8
7
GND  
RFC  
GND  
1
2
3
VSS  
100pF  
100pF  
0Ω  
CTRL  
VDD  
RFC  
ADRF5025  
RF1  
THRU CAL  
Figure 21. Simplified Evaluation Board Schematic  
Table 6. Evaluation Board Components  
Component  
C8, C9  
J8 to J10  
R2  
Default Value  
Description  
100 pF  
Not applicable  
0 Ω  
Capacitors, C0402 package  
2.4 mm end launch connectors (Southwest Microwave: 1492-04A-5)  
Resistor, 0402 package  
TP5 to TP8  
U2  
PCB  
Not applicable  
ADRF5025  
08-046672E  
Through hole mount test points  
ADRF5025 SPDT switch, Analog Devices, Inc.  
Evaluation PCB, Analog Devices  
Rev. B | Page 11 of 13  
 
 
ADRF5025  
Data Sheet  
Impedance Matching  
PROBE MATRIX BOARD  
Impedance matching at the RFx pins can improve the insertion  
loss and return loss at high frequencies. Figure 24 and Figure 25  
show the difference in the transmission lines at the RFC, RF1,  
and RF2 pins. This same circuit is implemented on the probe  
matrix boards and the evaluation boards.  
The probe matrix board is a 4-layer board. Similar to the  
evaluation board, this board also uses a 8 mil Rogers RO4003  
dielectric. The outer copper layers are 0.5 oz (0.7 mil) copper  
plated to 1.5 oz (2.2 mil). The RF transmission lines were  
designed using a CPWG model with a width of 14 mil and  
ground spacing of 7 mil to have a characteristic impedance of  
50 Ω.  
The dimensions of the 50 Ω lines are 14 mil trace width and  
7 mil gap. To implement this impedance matched circuit, a  
5 mil trace with a width of 5 mils was inserted between the pin  
pad and the 50 Ω trace. The calibration kit reference kit does  
not include the 5 mil matching line, and therefore, the measured  
insertion loss includes the losses of the matching circuit.  
Figure 22 and Figure 23 show the cross section and top view of  
the board, respectively. Measurements are made using GSG  
probes at close proximity to the RFx pins. Unlike the evaluation  
board, probing reduces reflections caused by mismatch arising  
from connectors, cables, and board layout, resulting in a more  
accurate measurement of the device performance.  
G = 7mil  
W = 14mil  
1.5oz Cu (2.2mil)  
1.5oz Cu (2.2mil)  
1.5oz Cu (2.2mil)  
T = 2.2mil  
H = 8mil  
RO4003  
0.5oz Cu (0.7mil)  
0.5oz Cu (0.7mil)  
1.5oz Cu (2.2mil)  
Figure 22. Probe Matrix Board (Cross Section View)  
Figure 24. With Impedance Match  
Figure 23. Probe Board Layout (Top View)  
The probe matrix board includes a through reflect line (TRL)  
calibration kit allowing board loss deembedding. The actual  
board duplicates the same layout in matrix form to assemble  
multiple devices at one time. All S parameters were measured  
on this board.  
Figure 25. Without Impedance Match  
Rev. B | Page 12 of 13  
 
 
 
 
 
 
Data Sheet  
ADRF5025  
OUTLINE DIMENSIONS  
0.85  
0.80  
0.75  
0.567  
BSC  
2.35  
2.25  
2.15  
0.633  
BSC  
0.818  
BSC  
PIN 1  
INDICATOR  
PIN 1  
INDICATOR  
0.10 × 0.45°  
10  
12  
0.40  
BSC  
1
9
0.75  
0.70  
0.65  
0.80 REF  
7
3
6
4
0.775  
BSC  
0.325  
0.275  
0.225  
TOP VIEW  
END VIEW  
BOTTOM VIEW  
0.250  
0.200  
0.150  
0.125  
BSC  
0.85  
0.75  
0.65  
0.53 REF  
FOR PROPER CONNECTION OF  
THE EXPOSED PAD, REFER TO  
THE PIN CONFIGURATION AND  
FUNCTION DESCRIPTIONS  
0.26  
0.22  
0.18  
SECTION OF THIS DATA SHEET.  
Figure 26. 12-Terminal Land Grid Array [LGA]  
2.25 mm × 2.25 mm Body and 0.75 mm Package Height  
(CC-12-3)  
Dimensions shown in millimeters  
ORDERING GUIDE  
Model1  
Temperature Range  
−40°C to +105°C  
−40°C to +105°C  
Package Description  
Package Option  
CC-12-3  
CC-12-3  
Marking Code  
ADRF5025BCCZN  
ADRF5025BCCZN-R7  
ADRF5025-EVALZ  
12-Terminal Land Grid Array [LGA]  
12-Terminal Land Grid Array [LGA]  
Evaluation Board  
25  
25  
1 Z = RoHS Compliant Part.  
©2018–2020 Analog Devices, Inc. All rights reserved. Trademarks and  
registered trademarks are the property of their respective owners.  
D16533-5/20(B)  
Rev. B | Page 13 of 13  
 
 

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