Data Sheets - Skyworks Solutions, Inc.

DATA SHEET
SKY65313-21: 900 MHz Transmit/Receive Front-End Module
Applications
Description
• Automated meter reading
Skyworks SKY65313-21 is a high performance, transmit/receive
(T/R) Front-End Module (FEM). The device provides a complete
T/R chain with T/R switches.
• Advanced metering infrastructure
• ISM systems
The device transmit chain features +30.5 dBm output power and
a 40 percent Power Added Efficiency (PAE).
Features
• Transmit output power > +30.5 dBm
• High efficiency PA
• Analog power control
• Receive path NF <1.9 dB
• LNA bypass mode
• Integrated control logic
• Internal RF match and bias circuits
• All RF ports internally DC blocked
• Shutdown mode
• Small footprint, MCM (28-pin, 6 x 6 mm) package (MSL3,
260 °C per JEDEC J-STD-020)
The device receive chain features a Low Noise Amplifier (LNA)
with a 1.4 dB Noise Figure (NF) and 16.6 dB gain. The cascaded
NF and gain, taking into account the 0.5 dB insertion loss
transmit/receive antenna switch, are 1.9 dB and 16.1 dB,
respectively, which makes the SKY65313-21 ideal for medium
power microwave links such as 900 MHz Industrial, Scientific and
Medical (ISM) band applications.
The module also has a shut-down mode and LNA bypass mode to
minimize power consumption.
The device is mounted in a 28-pin, 6 x 6 mm Multi-Chip Module
(MCM) Surface-Mounted Technology (SMT) package, which
allows for a highly manufacturable low-cost solution.
The device package and pinout for the 28-pin MCM are shown in
Figure 1. A block diagram of the SKY65313-21 is shown in
Figure 2. Signal pin assignments and functional pin descriptions
are provided in Table 1.
Figure 1. SKY65313-21 Pinout – 28-Pin MCM
(Top View)
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Figure 2. SKY65313-21 Block Diagram
Table 1. SKY65313-21 Signal Descriptions
Pin #
Name
Description
Pin #
Name
Description
1
GND
Ground
15
GND
Ground
2
CTL1
Transmit/receive mode digital control input
16
VDD1
3.3 V power supply
3
CTL2
Shutdown mode digital control input
17
VCC_RX
3.3 V power supply
4
CTL3
Receive bypass mode digital control input
18
RX3
LNA and bypass switch output port.
Internally matched to 50 Ω.
5
VPC
Transmit output power analog control
voltage input
19
GND
Ground
6
GND
Ground
20
TX
PA input port. Internally matched to 50 Ω.
7
ANT
Antenna switch common port. Internally
matched to 50 Ω.
21
GND
Ground
8
GND
Ground
22
GND
Ground
9
GND
Ground
23
VDD2
4.0 V power supply
10
RX1
Receive arm of antenna switch. Internally
matched to 50 Ω.
24
VCC_TX1
4.0 V power supply
11
GND
Ground
25
VCC_TX2
4.0 V power supply
12
GND
Ground
26
VCC_TX3
4.0 V power supply
13
RX2
LNA and bypass switch input port
27
GND
Ground
14
GND
Ground
28
GND
Ground
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Technical Description
Receive Path
The SKY65313-21 consists of a complete T/R chain with T/R
switches contained in the module. A Single-Pole Double-Throw
(SPDT) switch selects between the receive and transmit paths.
The module has a shut-down mode to minimize power
consumption.
The receive path contains an LNA with bypass switch. The LNA
impedance matching networks are internal to the module and
have been optimized for a low NF while maintaining good return
losses into a 50 Ω source and load impedance. The receive arm
of the SPDT switch and the LNA input are connected to module
pins to allow an external filter to be inserted into the receive path.
Three digital input pins (CTL1, CTL2, and CTL3) are used to select
between transmit, receive, receive bypass, or shutdown mode.
Operation Mode Control
Transmit Path
The four SKY65313-21 operating modes are controlled by the
three digital pins CTL1, CTL2, and CTL3 (pins 2, 3, and 4,
respectively). The control logic truth Table is provided in Table 2.
The transmit path contains a Power Amplifier (PA) optimized for
saturated performance. The PA output is internally matched for
optimum output power and efficiency into a 50 Ω load
impedance. The PA output is passed through an harmonic filter
before being fed through the SPDT switch. The PA input provides
a good return loss into a 50 Ω source impedance.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY65313-21 are provided
in Table 3. Recommended operating conditions are specified in
Table 4. Electrical specifications are provided in Tables 5, 6, and
7.
Transmit output power is controlled by the VPC pin, which is
normally set to 2.25 V DC voltage. The nominal DC input
impedance into the VPC pin is 50 kΩ.
Typical performance characteristics of the SKY65313-21 are
illustrated in Figures 3 through 22.
Table 2. SKY65313-21 Operating Modes Truth Table (Note 1)
Control Voltage
Operating Mode
Internal States
CTL1
(Pin 2)
CTL2
(Pin 3)
CTL3
(Pin 4)
Transmit
1
1
Receive
0
1
Receive Bypass
0
Shutdown (Note 2)
X
LNA Bypass
Switch
T/R Switch
Off
Open
Transmit
On
Open
RX1
Off
Off
Through
RX1
Off
Off
Open
RX1
PA
LNA
X
On
0
Off
1
1
0
X
Note 1: See Recommended Operating Conditions Table for logic 0 and 1 characteristics. “X” = don’t care state, defined as a valid state of logic 1 or 0.
Note 2: In the high state, CTL1, CTL2, and CTL3 have an input current of 33 μA due to an internal 100 kΩ pulldown. In the shutdown mode, for the lowest leakage current, the high state is not
recommended for CTL1 and CTL3.
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Table 3. SKY65313-21 Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Minimum
Maximum
Units
–0.3
+5.0
V
20
mA
–0.3
+5.0
V
1.6
A
LNA supply voltage
VCC_RX
LNA supply current
ICC1
PA supply voltage
VCC_TX1/2/3
PA supply current
ICC2
Digital supply voltage
VDD1
–0.5
+5.5
V
Digital supply voltage
VDD2
–0.5
+5.5
V
Digital control voltage (CTL1, CTL2, CTL3)
VCTL
–0.5
VDD1 + 0.3
V
Transmit output power control voltage (VPC)
VPC
–0.3
+5.0
V
Receive RF input power (RX2)
PIN_RX2
+5
dBm
Receive RF input power (ANT)
PIN_ANT
+33
dBm
Transmit RF input power
PIN_TX
+15
dBm
Operating case temperature
TC
–40
+85
°C
Storage temperature
TSTG
–55
+150
°C
Junction temperature
TJ
+150
°C
T/R port load VSWR in transmit mode
VSWR
10:1
–
Note 1: 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.
Nominal thermal resistance, junction to case, is 18 °C/W.
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 4. SKY65313-21 Recommended Operating Conditions
Parameter
Symbol
Minimum
Typical
Maximum
Units
960
MHz
3.6
V
Frequency range
f
860
LNA supply voltage
VCC_RX
3.0
Digital supply voltage (Note 1)
VDD1
PA supply voltage
VCC_TX1/2/3
Digital supply voltage (Note 1)
VDD2
Digital input voltage, logic 0 (CTL1, CTL2,
CTL3)
VCTL
0
0.7
V
Digital input voltage, logic 1 (CTL1, CTL2,
CTL3)
VCTL
1.6
VDD1
V
Transmit output power control voltage (VPC)
VPC
0
2.25
2.50
V
–15
dBm
+10
+13
dBm
50
%
Receive RF input power (RX2)
PIN_RX2
Transmit RF input power (TX)
PIN_TXIN
Transmit duty cycle
3.3
VCC_RX
3.0
4.0
V
4.4
VCC_TX1/2/3
V
Note 1: VDD1 and VDD2 are diode-coupled together with a typical turn-on voltage of 3.2 V.
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Table 5. SKY65313-21 DC Electrical Specifications (Note 1)
(VCC_RX = VDD1 = 3.0 V to 3.6 V, VCC_TX1/2/3 = VDD2 = 3.6 V to 4.4 V, TC = –40 °C to +85 °C, No RF Input Power, Unless Otherwise
Noted)
Parameter
Symbol
Min
Typical
Max
Units
7.5
12.6
20.0
mA
IQ_BYP
46
90
μA
VDD1 quiescent current, transmit mode
IQ_VDD1
25
30
mA
VCC_TX1/2/3/quiescent current, transmit
mode
IQ_TXIN
TC = 25 °C,
VCC_TX1/2/3 = 4 V,
VPC = 2.25 V
55
88
mA
VCC_TX1/2/3/ operating current, transmit
mode
IOP_TXIN
PIN = +10 dBm, @ 902 to
928 MHz, VPC = 2.25 V
655
826
mA
VCC_RX quiescent current, shudown mode
(Note 2) (Note 3)
IQ_SDVCC_RX
0.01
μA
VCC_TX1/2/3 quiescent current, shutdown
mode (Note 2) (Note 3)
IQ_SDVCC_TX1,
IQ_SDVCC_TX2,
IQ_SDVCC_TX3
0.03
μA
Digital input current, logic 1 (Note 3)
IH
33
μA
Digital input current, logic 0 (Note 3)
IL
0
μA
Quiescent current, receive mode (Note 2)
IQ_RX
Quiescent current, receive bypass mode
(Note 2)
Test Condition
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: Total module power supply current.
Note 3: Not production tested.
Table 6. SKY65313-21 Electrical Specifications: Receive and Receive Bypass Mode (1 of 2) (Note 1)
(VCC_RX = VDD1 = 3.0 V to 3.6 V, VCC_TX1/2/3 = VDD2 = 3.6 V to 4.4 V, TC = –40 °C to +85 °C, f = 902 to 928 MHz, 50 Ω Source and
Load Impedance, CW Input, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
15.6
16.6
18.3
dB
1.4
1.8
dB
Receive Mode: RX2 to Receive Output Path
Small signal gain
GLNA
Noise Figure
NFLNA
Noise Figure variation over temperature
NFTEMP
±0.25
dB
1 dB Input Compression Point
IP1dBLNA
1 dB gain compression
–13
–11
dBm
3rd Order Input Intercept Point
IIP3LNA
PIN = –30 dBm/tone,
200 kHz spacing
–3.5
0
dBm
Input return loss
|S11|LNA
8.0
10.7
dB
Output return loss
|S22|LNA
10.0
13.6
dB
Reverse isolation
|S12|LNA
20
22
dB
Non-harmonic spurious (Note 2) (Note 3)
PSPUR_LNA
Transition time (Note 2)
TLNA
TC = 25 °C, VCC_RX = 3.3 V
VSWR 10:1, all phases
–50
dBm
μs
0.5
Receive Bypass Mode: RX2 to Receive Output Path
Insertion loss
LBYP
1 dB Input Compression Point
IP1dBBYP
1 dB gain compression
+15
+16
dBm
3 Order Input Intercept Point
IIP3BYP
PIN = –30 dBm/tone,
200 kHz spacing
+27
+30
dBm
Input return loss
|S11|BYP
12
15
dB
rd
3
4
dB
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Table 6. SKY65313-21 Electrical Specifications: Receive and Receive Bypass Mode (2 of 2) (Note 1)
(VCC_RX = VDD1 = 3.0 V to 3.6 V, VCC_TX1/2/3 = VDD2 = 3.6 V to 4.4 V, TC = –40 °C to +85 °C, f = 902 to 928 MHz, 50 Ω Source and
Load Impedance, CW Input, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
Receive Bypass Mode: RX2 to Receive Output Path (continued)
Output return loss
|S22|BYP
Transition time (Note 2)
TBYP
12
22
dB
0.5
μs
Receive and Receive Bypass Mode: ANT to RX1 Path
Insertion loss
LANT
0.5
0.9
dB
1 dB Input Compression Point (Note 2)
IP1dBANT
1 dB gain compression
+35
dBm
3rd Order Input Intercept Point (Note 2)
IIP3ANT
PIN = –30 dBm/tone,
200 kHz spacing
+50
dBm
Input return loss
|S11|ANT
12
15
dB
Output return loss
|S22|ANT
12
15
dB
Transition time (Note 2)
TANT
0.5
μs
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: Not production tested.
Note 3: Measurement performed with spectrum analyzer RBW = 100 kHz for frequencies < 1 GHz and RBW = 1 MHz for frequencies between 1 GHz and 10 GHz.
Table 7. SKY65313-21 Electrical Specifications: Transmit Mode (1 of 2) (Note 1)
(VCC_RX = VDD1 = 3.0 V to 3.6 V, VCC_TX2 = VDD2 = 3.6 V to 4.4 V, TC = –40 °C to +85 °C, f = 902 to 928 MHz, 50 Ω Source and Load
Impedance, CW Input, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
+30.0
+30.5
dBm
TXIN to ANT Path
Saturated output power
POUT
PIN = +10 dBm,
TC = 25 °C,
VCC_TX1/2/3 = 4.0 V,
VPC = 2.25 V
Output power variation over supply voltage
PIN = +10 dBm,
VPC = 2.25 V
±0.8
dB
Output power variation over temperature
PIN = +10 dBm,
VPC = 2.25 V
±0.15
dB
50
dB
41
%
Output power control
PCTL
PIN = +10 dBm,
VPC = 0 V to 2.7 V
(Note 2)
Power-Added Efficiency
PAE
PIN = +10 dBm
2 harmonic
2fo
PIN = +10 dBm
–36
–20
dBc
3rd harmonic
3fo
PIN = +10 dBm
–62
–58
dBc
4th harmonic
4fo
PIN = +10 dBm
–76
–66
dBc
5 harmonic
5fo
PIN = +10 dBm
–78
–70
dBc
6th – 10th harmonics (Note 3)
6fo – 10fo
PIN = +10 dBm
–70
dBc
Input return loss
|S11|TX
PIN = +10 dBm,
TC = 25 °C,
VCC_TX1/2/3 = 4.0 V,
VPC = 2.25 V
Output impedance (Note 4)
ZOUT_TX
PIN = +10 dBm
Non-harmonic spurious (Note 4) (Note 5)
PSPUR_TX
VSWR 10:1, all phases
Transition time (Note 4)
TTX
nd
th
40
10
16
dB
39–j46
Ω
–50
0.5
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dBm
μs
DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Table 7. SKY65313-21 Electrical Specifications: Transmit Mode (2 of 2) (Note 1)
(VCC_RX = VDD1 = 3.0 V to 3.6 V, VCC_TX2 = VDD2 = 3.6 V to 4.4 V, TC = –40 °C to +85 °C, f = 902 to 928 MHz, 50 Ω Source and Load
Impedance, CW Input, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
18
23
Max
Units
ANT to RX1 Path
Isolation
|S21|ANT
dB
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: Output power control is the difference between the output power at VPC = 2.25 V and VPC = 0 V.
Note 3: Only the 2nd to 5th harmonics have been production tested. The 6th to 10th harmonics are characterized only.
Note 4: Not production tested.
Note 5: Measurement performed with spectrum analyzer RBW = 100 kHz for frequencies < 1 GHz and RBW = 1 MHz for frequencies between 1 GHz and 10 GHz.
Typical Performance Characteristics
Figure 3. PA Saturated Output Power vs Frequency Over
Temperature (VCC_TX/1/2/3 = VDD2 = 4.0 V, VDD1 = VCC_RX =
3.3 V, PIN = +10 dBm, VPC = 2.25 V)
Figure 4. PA Saturated Output Power vs Frequency Over
VCC_TX/1/2/3 (VDD1 = VCC_RX = 3.3 V, TC = 25 °C,
PIN = +10 dBm, VPC = 2.25 V)
Figure 5. PA Gain vs Output Power Over Temperature
(VCC_TX/1/2/3 = VDD2 = 4.0 V, VDD1 = VCC_RX = 3.3 V,
f = 915 MHz, VPC = 2.25 V)
Figure 6. PA Output Power vs VPC Over Temperature
(VCC_TX/1/2/3 = VDD2 = 4.0 V, VDD1 = VCC_RX = 3.3 V,
f = 915 MHz, PIN = +10 dBm)
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Figure 7. PA Operating Current vs Output Power Over
Temperature (VCC_TX/1/2/3 = VDD2 = 4.0 V,
VDD1 = VCC_RX = 3.3 V, f = 915 MHz, VPC = 2.25 V)
Figure 8. PA Operating Current vs Output Power Over
VCC_TX/1/2/3 (VDD1 = VCC_RX = 3.3 V, TC = 25 °C,
f = 915 MHz, VPC = 2.25 V)
Figure 9. PA 2nd Harmonic vs Frequency Over VCC_TX1/2/3
(VDD1 = VCC_RX = 3.3 V, TC = 25 °C, PIN = +10 dBm
VPC = 2.25 V)
Figure 10. PA 3rd Harmonic vs Frequency Over VCC_TX1/2/3
(VDD1 = VCC_RX = 3.3 V, TC = 25 °C, PIN = +10 dBm
VPC = 2.25 V)
Figure 11. PA 4th Harmonic vs Frequency Over VCC_TX1/2/3
(VDD1 = VCC_RX = 3.3 V, TC = 25 °C, PIN = +10 dBm
VPC = 2.25 V)
Figure 12. PA 5th Harmonic vs Frequency Over VCC_TX1/2/3
(VDD1 = VCC_RX = 3.3 V, TC = 25 °C, PIN = +10 dBm
VPC = 2.25 V)
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Figure 13. LNA Gain vs Frequency Over Temperature
(VCC_TX/1/2/3 = VDD2 = 4.0 V, VDD1 = VCC_RX = 3.3 V)
Figure 14. LNA Gain vs Frequency Over VCC_RX
(VCC_TX/1/2/3 = VDD2 = 4.0 V, TC = 25 °C)
Figure 15. LNA IIP3 vs Frequency Over Temperature
(VCC_TX/1/2/3 = VDD2 = 4.0 V, TC = 25 °C)
Figure 16. LNA IIP3 vs Frequency Over VCC_RX
(VCC_TX/1/2/3 = VDD2 = 4.0 V, TC = 25 °C)
Figure 17. LNA Noise Figure vs Frequency Over Temperature
(VCC_TX/1/2/3 = VDD2 = 4.0 V, VCC_RX = VDD1 = 3.3 V)
Figure 18. LNA Noise Figure vs Frequency Over VCC_RX
(VCC_TX/1/2/3 = VDD2 = 4.0 V, TC = 25 °C)
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Figure 19. Antenna Switch Insertion Loss vs Frequency Over
Temperature (VCC_TX/1/2/3 = VDD2 = 4.0 V,
VDD1 = VCC_RX = 3.3 V)
Figure 20. Antenna Switch Insertion Loss vs Frequency Over
VCC_RX (VCC_TX/1/2/3 = VDD2 = 4.0 V, TC = 25 °C)
Figure 21. Bypass Switch Insertion Loss vs Frequency Over
Temperature (VCC_TX/1/2/3 = VDD2 = 4.0 V, TC = 25 °C)
Figure 22. Bypass Switch Insertion Loss vs Frequency Over
VCC_RX (VCC_TX/1/2/3 = VDD2 = 4.0 V, TC = 25 °C)
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Evaluation Board Description
Package and Handling Information
The SKY65313-21 Evaluation Board is used to test the
performance of the SKY65313-21 T/R FEM. A typical application
schematic diagram is provided in Figure 23. An Evaluation Board
schematic diagram is provided in Figure 24. An assembly drawing
for the Evaluation Board is shown in Figure 25.
Since the device package is sensitive to moisture absorption, it is
baked and vacuum packed before shipping. 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.
Package Dimensions
The SKY65313-21 is rated to Moisture Sensitivity Level 3 (MSL3)
at 260 °C. It can be used for lead or lead-free soldering. For
additional information, refer to Skyworks Application Note, PCB
Design and SMT Assembly/Rework Guidelines for MCM-L
Packages, document number 101752.
The PCB layout footprint for the SKY65313-21 is provided in
Figure 26. Package dimensions for the 28-pin MCM are shown in
Figure 27, and tape and reel dimensions are provided in
Figure 28.
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.
Figure 23. SKY65313-21 Typical Application Schematic
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Figure 24. SKY65313-21 Evaluation Board Schematic
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Figure 25. SKY65313-21 Evaluation Board Assembly Diagram
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Figure 26. SKY65313-21 PCB Layout Footprint
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Figure 27. SKY65313-21 28-Pin MCM Package Dimensions
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DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Figure 28. SKY65313-21 28-Pin MCM Tape and Reel Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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June 29, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202121A
DATA SHEET • SKY65313-21 T/R FRONT-END MODULE
Ordering Information
Model Name
SKY65313-21 T/R Front-End Module
Manufacturing Part Number
SKY65313-21
Evaluation Board Part Number
TW21-D300
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202121A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • June 29, 2012
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