SKY13278-313LF - Skyworks Solutions, Inc.

DATA SHEET
SKY13278-313LF: GaAs SPDT Switch 100 MHz–2.5 GHz
Features
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Function Block Diagram
Broadband: 100 MHz–2.5 GHz
Very low insertion loss: 0.4 dB typ. @ 900 MHz
High isolation: 26 dB typ. @ 900 MHz
Low current consumption: <100 µA @ 3 V
Miniature QFN-6 2 x 3 mm package
Lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C per
JEDEC J-STD-020
Description
The SKY13278-313LF is a pHEMT GaAs FET IC high linearity SPDT
switch. This wideband switch has been designed for use from
100 MHz to 2.5 GHz, where extremely high linearity, low control
voltage, high isolation, low insertion loss and ultra-miniature
package size are required. It can be controlled with positive,
negative or a combination of both voltages. The RF signal paths
within the SKY13278-313LF are fully bilateral.
Some standard implementations include T/R switching and diversity switching over 3 W. The SKY13278-313LF switch can be used
in many analog and digital wireless communication systems
including cellular, GSM and UMTS applications.
V1
J2
J1
J3
V2
common RF port (J1) is connected to one of two RF ports (J2 or J3)
via a low insertion loss path, while the path between J1 and the
other RF port is in its isolation state. When the control voltages are
toggled, the states between J1 and J2, as wells as J1 and J3, are
also toggled.
The SKY13278-313LF is available in a lead(Pb)-free, RoHS-compliant, QFN-6 2 x 3 mm plastic package.
An evaluation board is available upon request.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Switching is controlled via two control voltage inputs. Depending
upon the voltage level applied to the control voltage pins, the
Electrical Specifications
VCTL = 0/3 V, T = 25 °C, PINPUT = 0 dBm, Z0 = 50 Ω unless otherwise noted
Parameter
Frequency
Insertion loss
0.1–0.5 GHz
0.5–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
Isolation
0.1–0.5 GHz
0.5–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
Return loss (insertion loss state)
Lower frequency return loss is dependent on DC blocks
0.1–0.5 GHz
1.0–2.0 GHz
Min.
29
23
17
15
Typ.
Max.
Unit
0.40
0.40
0.45
0.55
0.5
0.5
0.6
0.7
dB
dB
dB
dB
32
26
20
18
dB
dB
dB
dB
20
20
dB
dB
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200504 Rev. D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 30, 2007
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DATA SHEET • SKY13278-313LF
Operating Characteristics
VCTL = 0/3 V, T = 25 °C, PINPUT = 0 dBm, Z0 = 50 Ω unless otherwise noted
Parameter
Condition
Switching characteristics
Rise, fall
On, off
Frequency
Min.
Typ.
10/90% or 90/10% RF
50% CTL to 90/10% RF
Input power for 0.1 dB compression
900 MHz
Max.
Unit
650
800
ns
ns
40
dBm
Second, third harmonics
PIN = 34.5 dBm, fIN = 900 MHz
-75
dBc
Second, third harmonics
PIN =32 dBm, fIN= 1800 MHz
-70
dBc
Blocker performance
T1 = 1950 MHz @ 20 dBm
T2 = 1760 MHz @ -15 dBm
IMD3 measured at 2140 MHz
-105
dBm
45
°C/W
Thermal resistance
Control voltages
VLOW = 0 V @ 20 µA maximum
VHIGH = 2.8 V @ 100 µA maximum to 5 V @ 200 µA maximum
Typical Performance Data
0
0
-5
J3
-0.4
-10
Isdolation (dB)
Insertion Loss (dB)
-0.2
J2
-0.6
-15
-20
J2
-25
J3
-30
-0.8
-35
-1.0
-40
0
0.5
1
1.5
2.0
2.5
3.0
0
0.5
1
1.5
2.5
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
Isolation vs. Frequency
85
-5
2nd
80
-10
H2, H3 (dBc)
75
-15
J3 lS11l J2 lS11l
-20
-25
3rd
70
65
60
55
J2 lS22l
-30
50
-35
45
J3 lS22l
-40
0
1
2
3
4
5
6
40
2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0
Frequency (GHz)
VCTL (V)
Return Loss vs. Frequency
Second and Third Harmonics vs. Control Voltage
FIN = 900 MHz PIN = 34.5 dBm
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
2
3.0
90
0
Return Loss (dB)
2.0
March 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200504 Rev. D
DATA SHEET • SKY13278-313LF
90
-80
85
Blocker (dBm)
-90
75
H2, H3 (dBc)
-85
2nd
80
3rd
70
65
60
55
-95
-100
2.8 V
-105
3V
-110
50
45
-115
40
2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0
-120
3.5 V
0
30
60
90
120
150
VCTL (V)
Phase (Deg.)
Second and Third Harmonics vs. Control Voltage
FIN = 1800 MHz PIN = 32 dBm
Blocker Performance vs. Phase
f1 = 1950 MHz, PIN = +20 dBm
f2 = 1760 MHz, PIN = -15 dBm
Blocker Measured at 2140 MHz
Truth Table
V1
V2
J1–J2
J1–J3
VLOW
VHIGH
Isolation
Insertion loss
VHIGH
VLOW
Insertion loss
Isolation
VLOW
VLOW
Not recommended(1)
VHIGH
VHIGH
Not recommended(1)
2.8 V < VHIGH < 5 V , 0 < VLOW < 0.2 V.
1. Switch is in an undefined state.
Recommended Solder Reflow Profiles
Refer to the “Recommended Solder Reflow Profile”
Application Note.
Tape and Reel Information
Refer to the “Discrete Devices and IC Switch/Attenuators
Tape and Reel Package Orientation” Application Note.
180
Absolute Maximum Ratings
Characteristic
RF input power @ 5 V
Value
10 W, f > 900 MHz @ 25 °C
Control voltage
-0.2 < V1, V2 < 8 V
Operating temperature
-40 °C to +85 °C
Storage temperature
-65 °C to +150 °C
Performance is guaranteed only under the conditions listed in the specifications table and is
not guaranteed under the full range(s) described by the Absolute Maximum specifications.
Exceeding any of the absolute maximum/minimum specifications may result in permanent
damage to the device and will void the warranty.
CAUTION: Although this device is designed to be as robust as
possible, ESD (Electrostatic Discharge) can damage
this device. This device must be protected at all times
from ESD. Static charges may easily produce potentials of several kilovolts on the human body or
equipment, which can discharge without detection.
Industry-standard ESD precautions must be employed
at all times.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200504 Rev. D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 30, 2007
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DATA SHEET • SKY13278-313LF
Pin Out
Pin Descriptions
J2
1
6
2
5
CBL
GND
J3
V1
CBL
3
4
CBL
0.078 (2.00 mm)
BSC
0.29 x 0.35
1
V2
0.001
(0.025 mm)
± 0.001
(0.025 mm)
0.118
5 (3.00 mm)
BSC
Top View
2
GND
Equipotential Point – Internal circuit common,
which must be connected to the pcb ground or
common via the lowest possible impedance.
3
J3
RF Input/Output – RF input/output port which is
either connected to J1 via a low insertion loss
path or isolated from J1, according to the logic
voltage levels applied to V1 and V2.
4
V2
Control Voltage 2 – Control voltage input #2. The
logic voltage level applied to this pin, along with
the voltage level applied to V1 (pin 6), determines
the states of the RF paths between J1–J2 and
J1–J3.
5
J1
RF Common Input/Output – RF common input/
output port which is either connected to J2 or to
J3 via a low insertion loss and isolated from the
other RF port, according to the logic voltage levels applied to V1 and V2.
6
V1
Control Voltage 1 – Control voltage input #1. The
logic voltage level applied to this pin, along with
the voltage level applied to V2 (pin 4), determines
the states of the RF paths between J1–J2 and
J1–J3.
Side View
1.02
0.35 ± 0.08 mm
1
6
0.95 BSC
RF Input/Output – RF input/output port which is
either connected to J1 via a low insertion loss
path or isolated from J1, according to the logic
voltage levels applied to V1 and V2.
12˚ Max.
4
3
J2
0.039
(1.00 mm) Max.
6
2
Pin Name
1
J1
QFN-6
Pin 1
Indicator
Pin Number
5
2
4
3
0.64 BSC
0.05 ± 0.05
Description
Bottom View
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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March 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200504 Rev. D
DATA SHEET • SKY13278-313LF
Evaluation Board
The evaluation board for the SKY13278-313 allows the switch to
be fully exercised. The RF common port is marked “J1”, and the
two switched RF ports are marked “J2” and “J3”. All of the RF
ports have SMA connectors mounted. The control voltage inputs
are marked “V1” and “V2”.
J2
The printed circuit board material is FR4. The RF dielectric layer
is 0.012 inches thick, ½ oz. copper. The RF transmission lines are
each 50 Ω (nominal) microstrip.
J1
V1
C1
There are three DC blocking capacitors on the board, C1, C2 and
C3, each of which is in series with one of the RF ports. These
capacitors are 47 pF. For improved insertion loss at signal frequencies below approximately 500 MHz these capacitors should
be replaced with larger capacitance capacitors, such as 1000 pF.
C2
C3
V2
J3
Item
Description
C1, C2, C3
DC Blocking Capacitor, 47 pF
J1, J2, J3
SMA Connector, Edge Mount
U1
Printed Circuit Board
Comments
0402
SKY13278-313
Skyworks SK39990
C1
V1
J2
C2
J1
U1
C3
J3
V2
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200504 Rev. D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 30, 2007
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DATA SHEET • SKY13278-313LF
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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March 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200504 Rev. D