ANADIGICS AWS5524

AWS5524
0.5 to 2.5 GHz SP4T Switch
ADVANCED PRODUCT INFORMATION - Rev 0.1
FEATURES
•
Low Insertion Loss: 0.8 dB at 2 GHz
•
High Isolation: > 25 dB
•
Low Harmonic Levels: < -65 dBc at max. GSM
power
•
Low Control Voltage Operation: to +2.5 V
APPLICATIONS
•
Front-end Modules for GSM Wireless Handsets
D1
Die
PRODUCT DESCRIPTION
The AWS5524 is a single pole, four throw (SP4T)
RF switch developed to meet the stringent
requirements of GSM systems. Manufactured in
ANADIGICS’ state-of-the-art pHEMT process, the
device uses patent-pending circuit topologies to
RF4
provide the low insertion loss, high port-to-port
isolation and high linearity needed to enhance the
performance of GSM radios. The AWS5524 is offered
as an unpackaged MMIC die.
RFC
RF1
RF4G
RF1G
V4
V1
V3
V2
RF3G
RF3
VS
RF2
Figure 1: Block Diagram
12/2002
RF2G
RFC
1425
RF4
RF1
1075
RF1G
850
V4
546
V3
310
RF3G
306
RF3
VS
RF2
V1
596
V2
371
RF2G
75
1333
671
1036
RF4G
735
1225
907
736
1150
306
75
AWS5524
1500
Dimensions in µm
Bondpads 100 x 75µm
Dimensions in µm
Bond Pads: 100 µm x 75 µm
Die Thickness: 178 µm
Figure 2: Die Configuration
Table 1: Pad Description
NAME
RF1
RFG1
RF port, path 1
Ground
NAME
RF3
RFG3
DESCRIPTION
RF port, path 3
Ground
V1
Control voltage, RF path 1
V3
Control voltage, RF path 3
V2
Control voltage, RF path 2
V4
Control voltage, RF path 4
RFG2
2
DESCRIPTION
Ground
RF4G
Ground
RF2
RF port, path 2
RF4
RF port, path 4
VS
Common port bias
voltage (logic high)
RFC
RF common port
ADVANCED PRODUCT INFORMATION - Rev 0.1
12/2002
AWS5524
ELECTRICAL CHARACTERISTICS
Table 2: Absolute Minimum and Maximum Ratings
PARAMETER
MIN
MAX
UNIT
Common Port Bias Voltage (VS) (1)
-0.2
+8.0
V
Control Voltages (V1, V2, V3, V4)
-0.2
+8.0
V
-
10
W
-65
+150
°C
RF Input Power (PIN)
Storage Temperature
(2)
COMMENTS
at all RF ports
Stresses in excess of the absolute ratings may cause permanent damage. Functional operation
is not implied under these conditions. Exposure to absolute ratings for extended periods of
time may adversely affect reliability.
Notes:
(1) The VS port may remain open-circuited without damage to the device.
(2) Storage Temperature limits apply to the die only after it has been removed from the ANADIGICS
shipping material.
3. All RF ports should be AC-coupled. No external DC bias should be applied.
Table 3: Operating Ranges
PARAMETER
MIN
TYP
MAX
UNIT
RF Frequency (f)
0.5
-
2.5
GHz
Common Port Bias Voltage (VS)
-
(1)
-
-
applied at VS port
Control Voltages (V1, V2, V3, V4)
0
+2.5
-
+0.2
+3.5
V
RF path OFF state
RF path ON state
Ambient Temperature (TA)
-30
-
+85
o
COMMENTS
C
The device may be operated safely over these conditions; however, parametric performance is guaranteed
only over the conditions defined in the electrical specifications.
Notes:
(1) For optimal linearity performance, the Common Port Bias Voltage (VS) should be set to the same Control Voltage
used to turn ON any of the individual RF paths. The VS port may remain open-circuited without damage to the
device, but with some degradation in linearity.
ADVANCED PRODUCT INFORMATION - Rev 0.1
12/2002
3
AWS5524
Table 4: Electrical Specifications
(TA = +25 °C; RF ports terminated with 50 Ω; Vn = +2.7 V and is the Control Voltage for the ON path,
RFC - RFn; Vx = 0 V and is the Control Voltage for the OFF paths, RFC - RFx)
PARAMETER
MIN
TYP
MAX
UNIT
Insertion Loss
1 GHz
2 GHz
-
0.5
0.8
0.7
1.0
Return Loss
1 GHZ
2 GHz
-
-25
-17
-20
-15
25
25
27
27
-
Input Third Order Intercept (2)
800 MHz Cellular Band
1900 MHz PCS Band
-
+66
+59
-
2nd Harmonic Rejection
1 GHz
2 GHz
-
-71
-72
-65
-65
3rd Harmonic Rejection (3)
1 GHz
2 GHz
-
-88
-80
-65
-65
dB c
-
-
30
5
µA
µA
COMMENTS
RFC port to selected RFn port
dB
RFC port and selected RFn port
(1)
Isolation
1 GHz
2 GHz
dB
RFC port to isolated RFx ports
Current Consumption
dB
RFC port to selected RFn port
dB m
dB c
RFC port to selected RFn port
PIN = +34 dBm
PIN = +32 dBm
RFC port to selected RFn port
PIN = +34 dBm
PIN = +32 dBm
each Vn port
VS port
Notes:
(1) Isolated RFx ports have a return loss of approximately -3 dB.
(2) For the Cellular Band, two tones with PIN = +22.5 dBm each, at 837 and 838 MHz. For the PCS Band, two tones
with PIN = +21 dBm each, at 1880 and 1881 MHz.
(3) VS = Vn
Table 5: Switch Control Truth Table
CONTROL
VOLTAGES
RF PATH
SELECTION
4
V1
+2.5 to +3.5 V
0 to +0.2 V
0 to +0.2 V
0 to +0.2 V
V2
0 to +0.2 V
+2.5 to +3.5 V
0 to +0.2 V
0 to +0.2 V
V3
0 to +0.2 V
0 to +0.2 V
+2.5 to +3.5 V
0 to +0.2 V
V4
0 to +0.2 V
0 to +0.2 V
0 to +0.2 V
+2.5 to +3.5 V
RFC - RF1
ON
OFF
OFF
OFF
RFC - RF2
OFF
ON
OFF
OFF
RFC - RF3
OFF
OFF
ON
OFF
RFC - RF4
OFF
OFF
OFF
ON
ADVANCED PRODUCT INFORMATION - Rev 0.1
12/2002
AWS5524
PERFORMANCE DATA
Figure 4: Harmonics of 1 GHz vs. Control Voltage
(ON path, Vx = 0 V, f = 1 GHz, PIN = +34 dBm)
Figure 3: Insertion Loss vs. Frequency
(ON path, Vn = +2.7 V, Vx = 0 V)
-30
-0.2
2nd Harmonic, Vs open
2nd Harmonic, Vs = Vn
3rd Harmonic, Vs open
3rd Harmonic, Vs = Vn
-40
Harmonic Level (dBc)
Insertion Loss (dB)
-0.4
-0.6
-0.8
-50
-60
-70
-80
-90
-1.0
-100
2.5
-1.2
500
1000
1500
2000
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
Control Voltage (V)
2500
Frequency (MHz)
Figure 6: Harmonics of 2 GHz vs. Control Voltage
(ON path, Vx = 0 V, f = 2 GHz, PIN = +32 dBm)
Figure 5: Return Loss vs. Frequency
(ON path, Vn = +2.7 V, Vx = 0 V)
0
-30
RFC port
RFn port
Harmonic Level (dBc)
-10
Return Loss (dB)
2nd Harmonic, Vs open
2nd Harmonic, Vs = Vn
3rd Harmonic, Vs open
3rd Harmonic, Vs = Vn
-40
-20
-50
-60
-70
-80
-30
-90
-100
-40
500
2.5
1000
1500
2000
2.6
2.7
2.8
2500
2.9
3
3.1
3.2
3.3
3.4
3.5
Control Voltage (V)
Frequency (MHz)
0
Figure 7: Isolation vs. Frequency
(OFF path, Vn = +2.7 V, Vx = 0 V)
Isolation (dB)
-10
-20
-30
-40
500
1000
1500
2000
2500
Frequency (MHz)
ADVANCED PRODUCT INFORMATION - Rev 0.1
12/2002
5
AWS5524
APPLICATION INFORMATION
Die Applications
Bonding and circuit connections for the unpackaged
AWS5524 die are shown in Figure 8, and application
details are listed in the following notes:
4. L ESD provides a means to increase the ESD
protection on a specific RF port, typically the port
attached to the antenna. The ESD rating of the device
is ±125 V HBM overall. This rating is associated
with the control pin to RF port path. RF port to RF
port/RF Gnd has been determined to be >±500 V
HBM for this technology. By using LESD as an RF
choke on a port, an ESD protection to ±8 kV contact
discharge can be achieved.
1. Cb are DC blocking capacitors external to the
device. A value of 100 pF is sufficient for operation
to 500 MHz. The values may be tailored to provide
specific electrical responses. The isolation of the
switch provides enough decoupling of RF ports 1
through 4 so that overall switch performance is not
affected.
5. The die may be attached by either conductive or
non-conductive epoxy formulated for attaching
semiconductor parts. The back of the die is
electrically isolated from the switch circuit and can
be grounded or left isolated.
2. The VS pin provides a fixed voltage potential to
the common port of the switch. To get the best linear
performance, it should be tied to the logic high
voltage potential (not the power supply). Current
draw on this pin is less than 5 µA.
3. The RF Ground bondwires should be kept as
short as possible and bonded directly to a good RF
ground for best broadband performance.
RF Port 4
Common (Ant.) RF Port
Cb
Cb
LESD
Note 4
Cb
RF4
RF Gnd, Path 4 Shunt
RF Port 1
RF1
RFC
RF4G
RF Gnd, Path 1 Shunt
RF1G
Control Pin, RF Path 4
V4
V3
Control Pin, RF Path 3
V1
Control Pin, RF Path 1
V2
Control Pin, RF Path 2
RF3G
RF Gnd, Path 3 Shunt
RF3
VS
RF2
RF2G
Keep RF Gnd Bondwires Short
4 Places, Note 3
RF Gnd, Path 2 Shunt
Cb
Common
Port Supply
RF Port 3
Note 2 (Logic high)
Cb
RF Port 2
Figure 8: Application Schematic
6
ADVANCED PRODUCT INFORMATION - Rev 0.1
12/2002
AWS5524
NOTES
ADVANCED PRODUCT INFORMATION - Rev 0.1
12/2002
7
AWS5524
ORDERING INFORMATION
ORDER NUMBER
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
COMPONENT PACKAGING
AWS5524D1
-30 oC to +85 oC
Die
(contact ANADIGICS for details)
ANADIGICS, Inc.
141 Mount Bethel Road
Warren, New Jersey 07059, U.S.A.
Tel: +1 (908) 668-5000
Fax: +1 (908) 668-5132
URL: http://www.anadigics.com
E-mail: Mktg@anadigics.com
IMPORTANT NOTICE
ANADIGICS, Inc. reserves the right to make changes to its products or to discontinue any product at any time without
notice. The product specifications contained in Advanced Product Information sheets and Preliminary Data Sheets are
subject to change prior to a product’s formal introduction. Information in Data Sheets have been carefully checked and are
assumed to be reliable; however, ANADIGICS assumes no responsibilities for inaccuracies. ANADIGICS strongly urges
customers to verify that the information they are using is current before placing orders.
WARNING
ANADIGICS products are not intended for use in life support appliances, devices or systems. Use of an ANADIGICS
product in any such application without written consent is prohibited.
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ADVANCED PRODUCT INFORMATION - Rev 0.1
12/2002