SKY12207-478LF DataSheet - Skyworks Solutions, Inc.

DATA SHEET
SKY12207-478LF: 0.9 to 4.0 GHz 50 W High Power Silicon
PIN Diode SPDT Switch
Applications
 Transmit/receive switching and failsafe switching in
TD-SCDMA, WiMAX, and LTE base stations
 Transmit/receive switching in land mobile radios and military
communication systems
ANT
TX
RX
Features
 High power handling: 50 W CW, 300 W peak
 Low insertion loss: 0.4 dB typical
 High antenna-to-receive isolation: 42 dB @ 2.6 GHz typical
 Controlled with positive power supply
 Bias driver circuit available on request
 Small, QFN (16-pin, 4 x 4 mm) Pb-free package (MSL1, 260 C
per JEDEC J-STD-020)
Skyworks Green™ products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green™, document number
SQ04-0074.
RX_BIAS
Exposed
Paddle
S2403
Figure 1. SKY12207-478LF Block Diagram
Description
The SKY12207-478LF is a high power handling, Single-Pole,
Double-Throw (SPDT) silicon PIN diode switch. The device
operates over the 900 MHz to 4 GHz band. It features low
insertion loss, excellent power handling, and superb linearity with
low DC power consumption.
The SKY12207-478LF is well-suited for use as a high power
transmit/receive switch in a variety of telecommunication systems
such as WiMAX, TD-SCDMA, or LTE base stations.
The device is provided in a 4 x 4 mm, 16-pin Quad Flat No-Lead
(QFN) package. A functional block diagram is shown in Figure 1.
The pin configuration and package are shown in Figure 2. Signal
pin assignments and functional pin descriptions are provided in
Table 1.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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1
N/C
GND
TX
GND
DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
16
15
14
13
ANT
2
11
N/C
GND
3
10
N/C
N/C
4
9
RX_BIAS
5
6
7
8
GND
N/C
RX
12
GND
1
N/C
GND
S2401
Figure 2. SKY12207-478LF Pinout – 16-Pin QFN
(Top View)
Table 1. SKY12207-478LF Signal Descriptions
Pin
Name
Description
Pin
Name
Description
1
GND
Ground. Must be connected to ground using
lowest possible impedance.
9
RX_BIAS
RF ground port and DC bias input port
2
ANT
Antenna RF port and DC bias input port
10
N/C
No connection
3
GND
Ground. Must be connected to ground using
lowest possible impedance.
11
N/C
No connection
4
N/C
No connection
12
N/C
No connection
5
N/C
No connection
13
GND
Ground. Must be connected to ground using
lowest possible impedance.
6
GND
Ground. Must be connected to ground using
lowest possible impedance.
14
TX
Transmit RF input port and DC bias input
port
7
RX
Receive output port and DC bias input port
15
GND
Ground. Must be connected to ground using
lowest possible impedance.
8
GND
Ground. Must be connected to ground using
lowest possible impedance.
16
N/C
No connection
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY12207-478LF are
provided in Table 2. Recommended operating conditions are
specified in Table 3 and electrical specifications are provided in
Table 4.
Typical performance characteristics of the SKY12207-478LF are
illustrated in Figures 3 through 9.
The state of the SKY12207-478LF is determined by the logic
provided in Table 6. Table 7 provides the logic for use with the
SKY12207-478LF Evaluation Board.
Power derating data is plotted against temperature in Figures 10
and 11. Equivalent circuit diagrams for transmit and receive are
shown in Figure 12.
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DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
Table 2. SKY12207-478LF Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
RF CW input power, TX and ANT ports (TSUBSTRATE = 25 °C)
PIN
75
W
RF peak input power, TX and ANT ports (TSUBSTRATE = 25 °C, RF burst
width = 10 μs, RF burst repetition rate = 25 kHz)
PIN
300
W
RF CW input power, RX port (TSUBSTRATE = 25 °C)
PIN
60
W
RF peak input power, RX port (TSUBSTRATE = 25 °C, RF burst width =
10 μs, RF burst repetition rate = 25 kHz)
PIN
240
W
Control port reverse voltage
VCTL
200
V
Control port forward current
ICTL
200
mA
Operating temperature
TOP
–55
+175
C
Storage temperature
TSTG
–55
+200
C
Electrostatic discharge:
ESD
1000
1000
200
V
V
V
Charged Device Model (CDM), Class 4
Human Body Model (HBM), Class 1C
Machine Model (MM), Class B
Note:
Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) 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 should be used at all times.
Table 3. Recommended Operating Conditions (Per ANT, TX, RX, and RX_BIAS Inputs)
Parameter
Symbol
Min
Typical
Max
Units
Control port reverse voltage
VCTL
5
28
100
V
Control port forward current
ICTL
20
50
100
mA
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
Table 4. SKY12207-478LF Electrical Specifications, Bias Voltage = 28 V (1 of 2) (Note 1)
(TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, EVB Optimized for 2.6 GHz Operation, Unless Otherwise Noted)
Parameter
Insertion loss, TX to ANT ports
Symbol
ILTX-ANT
Test Condition
Min
ILANT-RX
0.25
0.29
0.31
0.32
0.41
Iso_TX-RX
Iso_ANT-TX
0.28
0.32
0.33
0.39
0.70
Iso_ANT-RX
0.60
37.0
34.0
37.0
38.5
42.0
32.0
dB
dB
dB
dB
dB
26.0
22.0
21.0
20.0
16.0
dB
dB
dB
dB
dB
17.0
33
37
38
42
30
dB
dB
dB
dB
dB
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 28 V,
ANT port PIN @ pin 2 = 0 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
39
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dB
dB
dB
dB
dB
VPIN_2 = 1 V,
VPIN_14 = 28 V,
IPIN_7 = –50 mA,
VPIN_9 = 28 V,
ANT port PIN @ pin 2 = 0 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
Isolation, ANT to RX ports
0.55
dB
dB
dB
dB
dB
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 28 V,
TX port PIN @ pin 14 = 0 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
Isolation, ANT to TX ports
Units
VPIN_2 = 1 V,
VPIN_14 = 28 V,
IPIN_7 = –50 mA,
VPIN_9 = 28 V,
ANT port PIN @ pin 2 = 0 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
Isolation, TX to RX ports
Max
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 28 V,
TX port PIN @ pin 14 = 0 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
Insertion loss, ANT to RX ports
Typical
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DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
Table 4. SKY12207-478LF Electrical Specifications, Bias Voltage = 28 V (2 of 2) (Note 1)
(TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, EVB Optimized for 2.6 GHz Operation, Unless Otherwise Noted)
Parameter
Input return loss
Symbol
RL
Transmit 2nd harmonic
2fo
Test Condition
Min
Transmit 3rd Order Input Intercept Point
3fo
IIP3
Max
Units
1.8 to 2.5 GHz:
RX insertion loss state, ANT port
(@ pin 2)
28
dB
TX insertion loss state, TX
(@ pin 14)
26
dB
–72
–66
–84
–68
–71
dBc
dBc
dBc
dBc
dBc
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
–88
–80
–84
–81
–74
dBc
dBc
dBc
dBc
dBc
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 28 V,
TX port PIN
@ pin 14 = +30 dBm/tone,
tone spacing = 1 MHz,
@ 2.60 GHz
+78
dBm
port
TX insertion loss state,
TX port PIN @ pin 14 =
+30 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
Transmit 3rd harmonic
Typical
TX insertion loss state,
TX port PIN @ pin 14 =
+30 dBm:
Transmit 0.1 dB Compression Point
IP0.1dB
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 28 V,
@ 2.60 GHz
+47
dBm
Receive 0.1 dB Compression Point
IP0.1dB
VPIN_2 = 1 V,
VPIN_14 = 28 V,
IPIN_7 = –50 mA,
VPIN_9 = 28 V,
@ 2.60 GHz
+46
dBm
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 28 V,
0.9 to 3.5 GHz
50
W
W
Maximum transmit CW input power
PIN_CW
Maximum receive CW input power
PIN_CW
VPIN_2 = 1 V,
VPIN_14 = 28 V,
IPIN_7 = –50 mA,
VPIN_9 = 28 V,
0.9 to 3.5 GHz
40
Transmit RF switching time
tSW
10% to 90% RF on, repetition
rate = 0.1 MHz, @ 2.6 GHz
170
ns
Thermal resistance (junction to case)
ΘJC
32
C/W
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014
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DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
Table 5. SKY12207-478LF Electrical Specifications, Bias Voltage = 5 V (1 of 2) (Note 1)
(TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, EVB Optimized for 2.6 GHz Operation, Unless Otherwise Noted)
Parameter
Insertion loss, TX to ANT ports
Symbol
ILTX-ANT
Test Condition
Min
ILANT-RX
0.25
0.30
0.32
0.34
0.43
Iso_TX-RX
Iso_ANT-TX
0.28
0.31
0.33
0.41
0.72
Iso_ANT-RX
0.60
40.0
33.0
36.4
38.0
43.0
31.0
dB
dB
dB
dB
dB
25.0
22.0
21.0
19.0
15.0
dB
dB
dB
dB
dB
17.0
33
36
37
42
31
dB
dB
dB
dB
dB
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 5 V,
ANT port PIN @ pin 2 = 0 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
39
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dB
dB
dB
dB
dB
VPIN_2 = 1 V,
VPIN_14 = 5 V,
IPIN_7 = –50 mA,
VPIN_9 = 5 V,
ANT port PIN @ pin 2 = 0 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
Isolation, ANT to RX ports
0.55
dB
dB
dB
dB
dB
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 5 V,
TX port PIN @ pin 14 = 0 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
Isolation, ANT to TX ports
Units
VPIN_2 = 1 V,
VPIN_14 = 5 V,
IPIN_7 = –50 mA,
VPIN_9 = 5 V,
ANT port PIN @ pin 2 = 0 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
Isolation, TX to RX ports
Max
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 5 V,
TX port PIN @ pin 14 = 0 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
Insertion loss, ANT to RX ports
Typical
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DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
Table 5. SKY12207-478LF Electrical Specifications, Bias Voltage = 5 V (2 of 2) (Note 1)
(TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, EVB Optimized for 2.6 GHz Operation, Unless Otherwise Noted)
Parameter
Input return loss
Symbol
RL
Transmit 2nd harmonic
2fo
Test Condition
Min
Transmit 3rd Order Input Intercept Point
3fo
IIP3
Max
Units
1.8 to 2.5 GHz:
RX insertion loss state, ANT port
(@ pin 2)
28
dB
TX insertion loss state, TX
(@ pin 14)
26
dB
–36
–43
–61
–51
–58
dBc
dBc
dBc
dBc
dBc
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
–57
–55
–59
–59
–52
dBc
dBc
dBc
dBc
dBc
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 5 V,
TX port PIN
@ pin 14 = +30 dBm/tone,
tone spacing = 1 MHz,
@ 2.60 GHz
+74
dBm
port
TX insertion loss state,
TX port PIN @ pin 14 =
+30 dBm:
900 MHz
1.80 GHz
2.01 GHz
2.60 GHz
3.50 GHz
Transmit 3rd harmonic
Typical
TX insertion loss state,
TX port PIN @ pin 14 =
+30 dBm:
Transmit 0.1 dB Compression Point
IP0.1dB
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 5 V,
@ 2.60 GHz
+33
dBm
Receive 0.1 dB Compression Point
IP0.1dB
VPIN_2 = 1 V,
VPIN_14 = 5 V,
IPIN_7 = –50 mA,
VPIN_9 = 5 V,
@ 2.60 GHz
+34
dBm
VPIN_2 = 1 V,
IPIN_14 = –50 mA,
IPIN_9 = –50 mA,
VPIN_7 = 5 V,
0.9 to 3.5 GHz
15
W
W
Maximum transmit CW input power
PIN_CW
Maximum receive CW input power
PIN_CW
VPIN_2 = 1 V,
VPIN_14 = 5 V,
IPIN_7 = 50 mA,
VPIN_9 = 5 V,
0.9 to 3.5 GHz
10
Transmit RF switching time
tSW
10% to 90% RF on, repetition
rate = 0.1 MHz, @ 2.60 GHz
170
ns
Thermal resistance (junction to case)
ΘJC
32
C/W
Note 1: Performance is guaranteed only under the conditions listed in this Table.
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DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
Typical Performance Characteristics
0
0
–0.5
–0.5
Insertion Loss (dB)
Insertion Loss (dB)
(TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, EVB Optimized for 2.6 GHz Operation, Unless Otherwise Noted)
–1.0
–1.5
–2.0
|S21|: ANT to RX in Insertion Loss State
|S31|: ANT to TX in Insertion Loss State
–2.5
–1.0
–1.5
–2.0
|S21|: ANT to RX in Insertion Loss State
|S31|: ANT to TX in Insertion Loss State
–2.5
–3.0
–3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
0.5
1.0
Frequency (GHz)
3.0
–10
–15
–20
–20
–25
–25
–30
–35
–40
–45
4.0
–50
–55
–60
–65
0.5
1.0
1.5
2.0
2.5
3.0
3.5
–45
–50
–55
–60
–65
–70
–75
–80
|S21|: ANT to RX Isolation with ANT to TX in Insertion Loss State
|S23|: TX to RX Isolation with ANT to TX in Insertion Loss State
|S31|: ANT to TX Isolation with ANT to RX in Insertion Loss State
0
–30
–35
–40
|S21|: ANT to RX Isolation with ANT to TX in Insertion Loss State
|S23|: TX to RX Isolation with ANT to TX in Insertion Loss State
|S31|: ANT to TX Isolation with ANT to RX in Insertion Loss State
0
4.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Frequency (GHz)
Frequency (GHz)
Figure 6. Isolation vs Frequency
(ANT to RX, TX to RX, and ANT to TX Ports;
VCTL = 5 V, ICTL = –50 mA)
Figure 5. Isolation vs Frequency
(ANT to RX, TX to RX, and ANT to TX Ports;
VCTL = 28 V, ICTL = –50 mA)
0
–5
–10
–10
–15
–15
–20
–20
Return Loss (dB)
0
–5
–25
–30
–35
–40
–25
–30
–35
–40
–45
–45
|S11|: ANT Return Loss with ANT to RX in Insertion Loss State
|S22|: RX Return Loss with ANT to RX in Insertion Loss State
|S33|: TX Return Loss with ANT to TX in Insertion Loss State
|S11|: ANT Return Loss with ANT to TX in Insertion Loss State
|S22|: RX Return Loss with ANT to TX in Insertion Loss State
|S33|: TX Return Loss with ANT to RX in Insertion Loss State
–50
–55
–60
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Frequency (GHz)
Figure 7. Return Loss vs Frequency
(ANT, TX, and RX Ports; VCTL = 28 V, ICTL = –50 mA)
|S11|: ANT Return Loss with ANT to RX in Insertion Loss State
|S22|: RX Return Loss with ANT to RX in Insertion Loss State
|S33|: TX Return Loss with ANT to TX in Insertion Loss State
|S11|: ANT Return Loss with ANT to TX in Insertion Loss State
|S22|: RX Return Loss with ANT to TX in Insertion Loss State
|S33|: TX Return Loss with ANT to RX in Insertion Loss State
–50
–55
4.0
–60
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Frequency (GHz)
Figure 8. Return Loss vs Frequency
(ANT, TX, and RX Ports; VCTL = 5 V, ICTL = –50 mA)
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8
3.5
0
–5
–10
–15
Isolation (dB)
Isolation (dB)
2.5
Figure 4. Insertion Loss vs Frequency
(ANT to RX and ANT to TX Ports; VCTL = 5 V, ICTL = –50 mA)
0
–5
Return Loss (dB)
2.0
Frequency (GHz)
Figure 3. Insertion Loss vs Frequency
(ANT to RX and ANT to TX Ports; VCTL = 28 V, ICTL = –50 mA)
–70
–75
–80
1.5
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4.0
DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
–0.3
28 V, 20 mA
28 V, 50 mA
5 V, 20 mA
5 V, 50 mA
Insertion Loss (dB)
–0.4
–0.5
–0.6
–0.7
–0.8
–0.9
+30
+32
+34
+36
+38
+40
+42
+44
+46
+48
+50
Input Power (dBm)
Figure 9. Insertion Loss vs CW Input Power
(TX to ANT Port, f = 2.6 GHz)
Table 6. SKY12207-478LF Truth Table
Path
Control Conditions
Antenna-toReceiver Port
(Pin 2 to Pin 7)
Transmitter-toAntenna Port
(Pin 14 to Pin 2)
Antenna Port Bias
Input
(Pin 2)
Nominal Receiver
Output Port
(Pin 7)
Nominal
Transmitter Port
Bias Input
(Pin 14)
RX_BIAS Input
(Pin 9)
Receive
(see Figure 12)
Low insertion loss
High isolation
1V
–50 mA
28 V
28 V
Transmit
(see Figure 12)
High isolation
Low insertion loss
1V
28 V
–50 mA
–50 mA
Switch State
Table 7. SKY12207-478LF Evaluation Board Truth Table
Path
Switch State
Control Conditions
Antenna-toReceiver Port
Transmitter-toAntenna Port
Antenna Port Bias
Input
Receiver Output
Port
Transmitter Port
Bias Input
RX_BIAS Input
Receive
(see Figure 12)
Low insertion loss
High isolation
5V
0 V (ground)
28 V
28 V
Transmit
(see Figure 12)
High isolation
Low insertion loss
5V
28 V
0 V (ground)
0 V (ground)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014
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DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
Maximum CW Incident Power (W)
60
50
ANT
40
30
RX
20
TX
10
0
25
35
45
55
65
75
85
95
105 115 125 135 145 155 165 175
Temperature on Bottom of Package Ground Plane (°C)
Transmit State
Figure 10. Transmit Power Derating, Maximum CW Incident
Power (Insertion Loss = 0.3 dB) vs Temperature on Bottom of
Package Ground Plane
ANT
RX
TX
Maximum CW Incident Power (W)
60
50
40
Receive State
30
S2398
20
Figure 12. SKY12207-478LF Equivalent Circuit Diagrams
10
0
25
35
45
55
65
75
85
95
105 115 125 135 145 155 165 175
Temperature on Bottom of Printed Circuit Board (°C)
Figure 11. Transmit Power Derating, Maximum CW Incident
Power (Insertion Loss = 0.3 dB) vs Temperature on Bottom of
Printed Circuit Board
Evaluation Board Description
The SKY12207-478LF Evaluation Board is used to test the
performance of the SKY12207-478LF PIN Diode SPDT switch. An
assembly drawing for the Evaluation Board is shown in Figure 13.
The layer detail is provided in Figure 14.
The SKY12207-478LF is designed to handle very large signals.
Sufficient power may be dissipated by this switch to cause
heating of the PIN diodes contained in the switch. It is very
important to use a printed circuit board design that provides
adequate cooling capability to keep the junction temperature of
the PIN diodes below their maximum rated operating temperature.
As indicated in Figure 10, the x-axis temperature is referenced to
the bottom of the QFN package. A printed circuit board with a very
low thermal resistance and external heat sink design must be
used to achieve the results shown in this Figure. The power
derating curve with the x-axis temperature referenced to the
bottom of the printed circuit board is provided in Figure 11.
derived from positive voltages. The state of the PIN diodes within
the SKY12207-478LF is controlled with 5 V applied to the ANT
port and bias voltages of either 28 V or 0 V applied to the
remaining bias inputs (RX and TX ports). The switch state circuit
diagrams are shown in Figure 12.
The value of resistor R1, 80 Ω, is selected to provide 50 mA of
forward current through the "on" series diode with 5 V applied to
the ANT port bias pin. The R2 resistance value of 540 Ω is
selected to produce approximately 50 mA of forward bias current
in the RX shunt diode with a source voltage of 28 V.
The magnitudes of the voltages applied to the TX and RX ports
determine which of the RX or TX series diodes is biased into
forward conduction. For example, to place the SKY12207-478LF
into the transmit state, 0 V is applied to the TX port (which
forward biases the diode between pins 2 and 14), 28 V is applied
to the RX port (which reverse biases the diode between pins 2 and
7), and 0 V is applied to the RX_BIAS port (which applies a
forward bias through R2 to the diode connected between pins 7
and 9).
The evaluation circuit is designed to facilitate control of the
SKY12207-478LF transmit/receive switch with bias signals
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January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D
DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
Package and Handling Information
The component values shown in the Evaluation Board circuit
diagram (Figure 15) were selected to optimize performance in the
2.0 to 3.5 GHz band.
Instructions on the shipping container label regarding exposure to
moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
Refer to Table 8 for the Evaluation Board Bill of Materials. Table 9
provides voltage, current, and resistor values for bias
adjustments.
The SKY12207-478LF is rated to Moisture Sensitivity Level 1
(MSL1) at 260 C. It can be used for lead or lead-free soldering.
For additional information, refer to the Skyworks Application Note,
Solder Reflow Information, document number 200164.
Package Dimensions
The PCB layout footprint for the SKY12207-478LF is shown in
Figure 15. Typical case markings are noted in Figure 17. Package
dimensions for the 16-pin QFN are shown in Figure 18, and tape
and reel dimensions are provided in Figure 19.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format.
RFC3
GND
TX
1
GND
ANT
ANT
DCH1
TX
RFC2
DC1
RX_BIAS
GND
RX
6
RX
GND
RFC1
S2399
Figure 13. SKY12207-478LF Evaluation Board Assembly Diagram
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11
DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
Cross Section
Name
Thickness (in)
Material
Top Soldermask
L1
(0.0028)
Cu foil
0.012 ± 0.0006
Rogers RO4003C Core
L2
(0.0014)
Cu foil
Laminate
(Note 1)
FR4 Prepreg
L3
(0.0014)
Cu foil
0.010 ± 0.0006
FR4 Core
(0.0028)
Cu foil
Laminate
Laminate
L4
Bottom Soldermask
Note 1: Adjust this thickness to meet total thickness goal of 0.062 ± 0.005 inches.
S2531
Figure 14. Layer Detail Physical Characteristics
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January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D
DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
C3
×
14
1
2
Antenna Port
C1
N/C
ANT
N/C
GND
N/C
N/C
RX_BIAS
×
11
×
×
9
L3
R2
0 V/+28 V DC Bias
Input Port
5
L5
6
GND
RX
GND
C6
C9
Receiver Output
Port
12
10
N/C
×
+28 V/0 V Receiver
Port Bias Input
GND
3
4
Transmitter Port
Bias Input
C5
GND
L1
13
TX
C4
15
N/C
C8
L2
16
GND
R1
+5 V Antenna
Port Bias Input
0 V/+28 V
Transmitter Input Port
7
8
×
C2
NOTE: The N/C pins (4, 5, 10, 11, 12, and 16) are not internally connected,
so they can be left open or grounded.
S2402
Figure 15. Evaluation Board Schematic
Table 8. Evaluation Board Bill of Materials (Note 1)
Component
Value
Size
Product Number
Manufacturer
Mfrr Part Number
Characteristics
C1, C2, C3, C4, C5,
C6, C9
1000 pF
0603
5404R23-057
TDK
C1608C0G1H102JT
COG, 50 V, ±5%
C8
1 μF
0603
5404R29-070
TDK
C2012X7R1H104K
X7R, 50 V, ±10%
55332R34-028
L1, L2, L5
22 nH
0603
Taiyo-Yuden
HK160822NJ-T
SRF, 1600 MHz, ±5%
L3
560 nH
0603
Coil Craft
0603LS-561XJLB
SRF, 525 MHz, ±5%
R1 (Note 2)
80 Ω
0603
Panasonic
ERJ-3GEYJ161V
0.1 W, 5%
R2 (Note 3)
540 Ω
Axial leaded (off board)
Note 1: Component values selected are based on the desired frequency and bias level. Values may be adjusted for a specific response.
Note 2: Two 160 Ω resistors are combined in parallel to achieve a minimum power handling requirement and an 80 Ω resistance.
Note 3: Evaluation Board does not include resistor R2. Operating at 28 V and 50 mA requires the R2 resistor with a power dissipation greater than 1.35 W.
Table 9. Component Calculation Values
VS
(V)
VDIODE
(V)
VRES
(V)
Current
(A)
Resistance
(Ω)
Power Dissipation
(W)
28
1
27
0.05
540
1.35
28
1
27
0.02
1350
0.54
5
1
4
0.05
80
0.20
5
1
4
0.02
200
0.08
Notes: Vs = supply voltage; VDIODE = voltage drop across the diode; VRES = voltage drop across the resistor.
R1 and R2 values are calculated by (Vs – VDIODE)/I, where I is the desired bias current.
The power dissipation in R1 or R2 is calculated by I x (VS – VDIODE). The resistor selected must be safely rated with a power greater than the dissipated power.
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13
DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
16X 1.45
(To Metal Pads)
0.508
Pitch 0.65
0.762
Typ. 0.325
9X Plated Thru Vias
See Detail A
Metal GND Pad (Sq.) 2.15
0.30
Exposed Soldering Area
0.75
Detail A
S2274
All measurements in millimeters
Figure 16. SKY12207-478LF PCB Layout Footprint
Pin 1
Indicator
Skyworks Part #
Lot #
Date Code:
(YY = Calendar Year
WW = Week)
Figure 17. Typical Case Markings
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January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D
DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
C
4
B
Pin 1
Indicator
2.15 +0.10/–0.15
(0.2)
Seating Plane
(1.075)
0.02 +0.03/–0.02
Pin 1 Indicator (Option B)
Exposed Pad
Pin 1 Indicator (Option A)
4
(1.075)
0.20 Min.
16X
2.15 +0.10/–0.15
A
0.15 C
2X
2X
Detail B
Detail A
0.15 C
1.50 ± 0.10
4
0.10 C
0.08 C
16X
Side View
Top View
Bottom View
R0.12 Typ.
0.18
R0.20
Pin 1 Indicator
0.55 ± 0.10
0.18
0.345
(0.325)
0.30 +0.05
0.10 M C A B
0.65
0.345
Detail A
Detail B
Option A
Option B
Scale: 40X
16 Places
Scale: 20X
Even Terminal Side
Pin 1 Indicator
Scale: 10X
Pin 1 Indicator
Scale: 20X
All measurements are in millimeters.
Dimensioning and tolerancing according to ASME Y14.5M-1994.
Coplanarity applies to the exposed heat sink slug as well as the terminals.
Package may have option A or option B pin 1 indicator.
S2400a
Figure 18. SKY12207-478LF 16-Pin QFN Package Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
8.00
0.30 ± 0.05
Ø1.50 +0.1/–0.0
Ø1.50 Min.
0.25 R
A
R 0.30 Max
1.75 ± 0.10
5.50 ± 0.05
(See Note 3)
4.35
1.80
A
A
(R0.25)
4.35
0.25
12.0 ± 0.30
2.00 ± 0.05
(See Note 3)
4.00
(See Note 1)
Pin 1
Indicator
Notes:
1. Sprocket hole pitch cumulative tolerance: ±0.2 mm
2. Carrier tape: black conductive polystyrene.
3. Pocket position relative to sprocket hole, measure as
true position of pocket, not pocket hole.
4. Cover tape material: transparent conductive adhesive.
5. ESD surface resistivity must meet all ESD requirements of
Skyworks, specified in GP01-D232.
6. All dimensions are in millimeters.
Figure 19. SKY12207-478LF Tape and Reel Dimensions
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January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D
S2817
DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH
Ordering Information
Model Name
SKY12207-478LF PIN Diode SPDT Switch
Manufacturing Part Number
SKY12207-478LF
Evaluation Board Part Number
SKY12207-478LF-EVB
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