201827B.pdf

DATA SHEET
SKY65346-21: 900 MHz Transmit/Receive Front-End Module
Applications
Description
• Automated meter reading
The SKY65346-21 is a high performance transmit/receive (T/R)
Front-End Module (FEM) ideally suited for use in 900 MHz
Industrial, Scientific, and Medical (ISM) applications.
Features
A double-pole, double-throw (DPDT) switch allows the device to
select between two antenna ports (ANT1 and ANT2 pins) for the
transmit or receive path. A single-pole, double-throw (SPDT)
switch selects which signal path is routed to the transceiver port
(RFIO pin). The receive path has a Low-Noise Amplifier (LNA)
bypass switch.
• Externally available bias circuits
• Control logic
• Cascaded receive gain: 12.4 dB
• Cascaded Noise Figure: 2.4 dB
• Transmit power: +26 dBm
• Single DC supply
• Shutdown mode
• Small, MCM (26-pin, 5 x 5 mm) package (MSL3, 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.
The Power Amplifier (PA) and LNA biasing can be independently
controlled with an external bias resistor. The device has a
shutdown mode to minimize power consumption. All eight
operating modes are controlled using three digital input pins
(CTL1, CTL2, and CTL3).
The SKY65346-21 T/R FEM is provided in a compact, 26-pin
5 x 5 mm Multi-Chip Module (MCM). 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.
Matching
Network
PA_IN
Harmonic
Filter
Bidirectional
RF Port
Antenna Port
PA
Antenna Port
3
Control Port
Control
Logic
LNA
LNA_IN
ASW_RX
Matching
Network
S1730
Figure 1. SKY65346-21 Block Diagram
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24
VCC2
RBIAS2
VCC2
21
GND
2
20
GND
VDD
3
19
GND
CTL1
4
18
GND
CTL2
CTL3
5
17
6
16
GND
ANT2
RBIAS1
7
15
ANT1
GND
8
14
GND
9
25
10
11
23 22
12 13
GND
RFIO
26
ASW_RX
GND
1
VCC1
LNA_IN
GND
TSW_TX
PA_IN
DATA SHEET • SKY65346-21 T/R FEM
S1735
Figure 2. SKY65346-21 Pinout – 26-Pin MCM
(Top View)
Table 1. SKY65346-21 Signal Descriptions
Pin #
Name
Description
Ground
Pin #
14
Name
GND
Description
1
GND
Ground
2
RFIO
RF transceiver port
15
ANT1
Antenna port
3
VDD
Digital power supply
16
ANT2
Antenna port
4
CTL1
Digital control line
17
GND
Ground
5
CTL2
Digital control line
18
GND
Ground
6
CTL3
Digital control line
19
GND
Ground
7
RBIAS1
LNA external bias resistor
20
GND
Ground
8
GND
Ground
21
GND
Ground
9
VCC1
LNA power supply
22
VCC2
PA power supply
10
LNA_IN
LNA input port. Internally matched to 50 Ω.
23
VCC2
PA power supply
11
ASW_RX
Antenna switch receive port
24
RBIAS2
PA external bias resistor
12
GND
Ground
25
PA_IN
PA input port
13
GND
Ground
26
TSW_TX
Transceiver switch transmit port
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DATA SHEET • SKY65346-21 T/R FEM
• Receive ANT2. In this mode, the SKY65346-21 amplifies the
received signal at antenna port 2 through the LNA.
Functional Description
The SKY65346-21 provides input and output amplifier stages, and
is internally matched for optimum efficiency. An active bias circuit
provides both input and output stages with excellent gain tracking
over temperature and voltage variations. The module operates
with positive DC voltages, and maintains high efficiency and good
linearity. The nominal operating voltage is 3.3 V for maximum
power. The PA and LNA biasing can be independently controlled
with an external bias resistor.
• Transmit ANT1. In this mode, the transmit path provides an
harmonic filter and high efficiency PA on the Antenna 1 Port.
• Transmit ANT2. This is the same mode of operation as Transmit
ANT1 except that the output is the Antenna 2 Port.
• Shut down. In this mode, the PA and LNA are powered down for
minimal current consumption and low leakage current
(<1 μA).
Table 2 provides the control logic for each of the eight operational
modes.
Operational Modes
By using three control signals (CTRL1, CTRL2, and CTRL3), the
SKY65346-21 can be configured to one of eight operational
modes:
Electrical and Mechanical Specifications
• Receive ANT1 bypass. In this mode, a low-loss broadband,
bidirectional RF path allows easy switching of the signal
between the transceiver and antenna port 1.
The absolute maximum ratings of the SKY65346-21 are provided
in Table 3 and the recommended operating conditions in Table 4.
Electrical characteristics for the SKY65346-21 are provided in
Table 5 through Table 10.
• Receive ANT2 bypass. In this mode, a low-loss broadband,
bidirectional RF path allows easy switching of the signal
between the transceiver and antenna port 2.
Typical performance characteristics of the SKY65346-21 are
illustrated in Figures 3 through 27.
• Receive ANT1. In this mode, the SKY65346-21 amplifies the
received signal at antenna port 1 through the LNA.
Table 2. SKY65346-21 Truth Table
Control Voltage (Note 1)
Operation Mode
CTL1
(Pin 4)
CTL2
(Pin 5)
Internal States
CTL3
(Pin 6)
Receive ANT1 bypass
1
1
1
Receive ANT2 bypass
1
1
0
Receive ANT1
1
0
1
Receive ANT2
1
0
0
Transmit ANT1
0
1
1
Transmit ANT2
0
1
0
Shut down
0
0
0
Shut down (Note 2)
0
0
1
LNA On
PA On
off
off
RFIO
Switch
Receive LNA
on
off
ANT2
Switch
ASW_RX
Transmit PA
Transmit PA
ASW_RX
ASW_RX
Transmit PA
Transmit PA
ASW_RX
on
TSW_TX
ASW_RX
Transmit PA
off
open
open
open
off
open
open
open
off
off
ANT1
Switch
Note 1: See Table 4 for logic 0 and logic 1 characteristics.
Note 2: In the high state, the CTL3 pin has an input current of 33 μA due to an internal 100 kΩ pulldown. This mode is not recommended for lowest leakage current.
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DATA SHEET • SKY65346-21 T/R FEM
Table 3. SKY65346-21 Absolute Maximum Ratings (Note 1)
Parameter
LNA supply voltage (VCC1)
Symbol
Minimum
Maximum
Units
–0.3
+5.0
V
VCC1
PA supply voltage (VCC2)
VCC2
–0.3
+5.0
V
Digital supply voltage (VDD)
VDD
–0.5
4.6
V
Digital input voltage (CTL1, CTL2, CTL3)
VCTL
–0.5
VDD + 0.3
V
LNA supply current (VCC1)
ICC1
20
mA
PA supply current (VCC2)
ICC2
500
mA
Receive RF input power
PIN_LNA
+10
dBm
Transmit RF input power
PIN_PA
+10
dBm
10:1
–
Antenna port load VSWR (Note 2)
Operating case temperature
TC
Junction temperature
TJ
Storage case temperature
TSTG
–40
–55
+85
°C
+150
°C
+150
°C
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. Exceeding any of the limits listed here may result in permanent damage to the device.
Note 2: Antenna port load VSWR is limited by voltage. An open load condition will not damage 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 4. SKY65346-21 Recommended Operating Conditions
Parameter
Symbol
Minimum
Typical
Maximum
Units
LNA supply voltage (VCC1)
VCC1
2.7
3.3
3.7
V
PA supply voltage (VCC2)
VCC2
2.7
3.3
3.7
V
Digital supply voltage (VDD)
VDD
2.7
3.3
3.6
V
Digital input voltage, logic 0 (CTL1, CTL2,
CTL3)
VCTL
0
0.2
V
Digital input voltage, logic 1 (CTL1, CTL2,
CTL3)
VCTL
VDD – 0.2
3.6
V
Receive RF input power (ANT1, ANT2)
PIN_RX
–10
dBm
VDD
Transmit RF input power (RFIO)
PIN_TX
–10
–6
+2
dBm
LNA external bias resistor
RBIAS1
3.3
4.7
33
kΩ
PA external bias resistor
RBIAS2
3.3
12
33
kΩ
915 MHz ISM band frequency range
FB915
902
915
928
MHz
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PRELIMINARY DATA SHEET • SKY65346-21 T/R FEM
Table 5. SKY65346-21 DC Electrical Specifications (Note 1) (Note 2)
(VCC1 = VCC2 = VDD = 3.3 V, TC = –40 to +85 °C, f= 928 MHz, CW Input, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
Quiescent current, receive mode (Note 3)
IQ_RX
5.0
6.7
10.0
mA
Operating current, receive mode (Note 3)
IOP_RX
5.0
6.7
10.0
mA
Quiescent current, transmit mode (Note 3)
IQ_TX
70
78
90
mA
223
300
mA
Operating current, transmit mode (Note 3)
IOP_TX
Quiescent current, receive bypass mode
(Note 3)
IQ_RXB
75
μA
Quiescent current, shutdown mode
(Note 3) (Note 4)
IQ_SD
0.025
μA
33
0
μA
μA
Digital input current (Note 4):
Logic 1
Logic 0
PIN = –6 dBm
IH
IL
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: Parameters are characterized under the conditions noted here and production tested under nominal temperature and voltage conditions with guard-banded limits.
Note 3: Total module power supply current.
Note 4: Shutdown functionality tested in production. Shutdown current (IQ_SD) production tested to be <50 μA.
Table 6. SKY65346-21 Electrical Specifications: LNA_IN to RFIO Receive Path (Note 1) (Note 2) (Note 3)
(VCC1 = VCC2 = VDD = 3.3 V, TC = –40 to +85 °C, f= 928 MHz, CW Input, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
10.5
13.7
15.5
dB
1.6
2.4
dB
Small signal gain
GLNA
Noise Figure
NFLNA
100 kHz bandwidth
1 dB input compression point
IP1dBLNA
1 dB gain compression
–13.0
–10.7
dBm
3 order input intercept point
IIP3LNA
400 kHz spacing,
PIN = –30 dBm/tone
+6.0
+7.5
dBm
Input return loss
|S11|LNA
10
20
dB
Output return loss
|S22|LNA
10
15
dB
Non-harmonic spurious (Note 4) (Note 5)
PSPUR_LNA
LNA_IN to TSW_TX isolation
ISOTSW
rd
VSWR 10:1, all phases
–50
9
14
dBm
dB
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: Parameters are characterized under the conditions noted here and production tested under nominal temperature and voltage conditions with guard-banded limits.
Note 3: Receive mode control voltage logic: CTL1, CTL2, and CTL3 = 10xb (refer to Table 2).
Note 4: Parameter is characterized under the conditions listed in this Table, but is not production tested.
Note 5: Measurement performed with PIN = –30 dBm and spectrum analyzer RBW = 100 kHz for frequencies < 1 GHz or
RBW = 1 MHz for frequencies from 1 GHz to 10 GHz. Reported spurious maximum value is the noise floor of the spectrum analyzer.
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DATA SHEET • SKY65346-21 T/R FEM
Table 7. SKY65346-21 Electrical Specifications: LNA_IN to RFIO Receive Path – Bypass Mode (Note 1) (Note 2) (Note 3)
(VCC1 = VCC2 = VDD = 3.3 V, TC = –40 to +85 °C, f= 928 MHz, CW Input, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Loss
LBYP
1 dB input compression point (Note 4)
IP1dBBYP
1 dB gain compression
3rd order input intercept point
IIP3BYP
400 kHz spacing,
PIN = –10 dBm/tone
Input return loss
Output return loss
Min
Typical
Max
2.5
3.0
Units
dB
+20
dBm
+16
+21
dBm
|S11|BYP
9.5
12.7
dB
|S22|BYP
7.0
8.2
dB
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: Parameters are characterized under the conditions noted here and production tested under nominal temperature and voltage conditions with guard-banded limits.
Note 3: Receive mode control voltage logic: CTL1, CTL2, and CTL3 = 11xb (refer to Table 2).
Note 4: Parameter is characterized under the conditions listed in this Table, but is not production tested.
Table 8. SKY65346-21 Electrical Specifications: ANT1/ANT2 to ASW_RX Receive Path (Note 1) (Note 2) (Note 3)
(VCC1 = VCC2 = VDD = 3.3 V, TC = –40 to +85 °C, f= 928 MHz, CW Input, Unless Otherwise Noted)
Parameter
Switch loss
Symbol
Test Condition
Min
LANT
1 dB input compression point (Note 4)
IP1dBANT
1 dB gain compression
3rd order input intercept point
IIP3ANT
400 kHz spacing,
PIN = –10 dBm/tone
Input return loss
Typical
Max
Units
0.8
1.0
dB
+30
dBm
+44
+47
dBm
|S11|ANT
10
19
dB
Output return loss
|S22|ANT
10
18
dB
ANT1 to ANT2 isolation
ISOANT
20.5
22.1
dB
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: Parameters are characterized under the conditions noted here and production tested under nominal temperature and voltage conditions with guard-banded limits.
Note 3: Receive mode control voltage logic: CTL1, CTL2, and CTL3 = 1xxb (refer to Table 2).
Note 4: Parameter is characterized under the conditions listed in this Table, but is not production tested.
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PRELIMINARY DATA SHEET • SKY65346-21 T/R FEM
Table 9. SKY65346-21 Electrical Specifications: PA_IN to ANT1/ANT2 Transmit Path (Note 1) (Note 2) (Note 3)
(VCC1 = VCC2 = VDD = 3.3 V, TC = –40 to +85 °C, f= 928 MHz, CW Input, Unless Otherwise Noted)
Parameter
Symbol
PA small signal gain
GTX
PA saturated output power
PSAT
PA output power
POUT
Test Condition
Min
32.0
PIN = –6 dBm
+24
Typical
Max
33.7
37.5
Units
dB
+26.3
dBm
+25
dBm
Power Added Efficiency
PAE
PIN = –6 dBm
43
2nd harmonic
2fO
PIN = –6 dBm
–30
–23
dBc
3rd harmonic
3fO
PIN = –6 dBm
–55
–50
dBc
4th harmonic
4fO
PIN = –6 dBm
–67
–58
dBc
5 harmonic
5fO
PIN = –6 dBm
–75
–60
dBc
Input return loss
|S11|TX
9
11
dB
Output return loss
|S22|TX
7
10
dB
th
Noise Figure
NFTX
100 kHz bandwidth
Non-harmonic spurious (Note 4)
PSPUR_TX
VSWR 0:1, all phases
3.4
%
7.0
dB
–50
dBm
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: Parameters are characterized under the conditions noted here and production tested under nominal temperature and voltage conditions with guard-banded limits.
Note 3: Transmit mode control voltage logic: CTL1, CTL2, and CTL3 = 01xb (refer to Table 2).
Note 4: Parameter is characterized under the conditions listed in this Table, but is not production tested. Measurement performed with spectrum analyzer RBW = 100 kHz for frequencies
< 1 GHz or RBW = 1 MHz for frequencies from 1 GHz to 10 GHz.
Table 10. SKY65346-21 Electrical Specifications: RFIO to TSW_TX Transmit Path (Note 1) (Note 2) (Note 3)
(VCC1 = VCC2 = VDD = 3.3 V, TC = –40 to +85 °C, f= 928 MHz, CW Input, Unless Otherwise Noted)
Parameter
Loss
Symbol
Test Condition
Min
LTSW
1 dB Output Compression Point (Note 4)
OP1dBTSW
1 dB gain compression
3rd Order Output Intercept Point
OIP3TSW
400 kHz spacing,
PIN = –10 dBm/tone
Input return loss
Output return loss
Typical
Max
Units
1.5
3.1
dB
+20
dBm
+30
dBm
|S11|TSW
8.9
dB
|S22|TSW
11.5
dB
+27
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: Parameters are characterized under the conditions noted here and production tested under nominal temperature and voltage conditions with guard-banded limits.
Note 3: Transmit mode control voltage logic: CTL1, CTL2, and CTL3 = 01xb (refer to Table 2).
Note 4: Parameter is characterized under the conditions listed in this Table, but is not production tested.
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DATA SHEET • SKY65346-21 T/R FEM
Typical Performance Characteristics
5.0
4.0
4.5
3.5
3.0
2.5
2.0
1.5
3.5
3.0
2.5
2.0
1.5
1.0
1.0
0.5
0.5
0
868
902
915
–40 °C
+25 °C
+85 °C
4.0
Noise Figure (dB)
Noise Figure (dB)
5.0
3.0 V
3.3 V
3.6 V
4.5
0
868
928
902
Frequency (MHz)
Figure 3. Transmit Path PA_IN to ANT1/ANT2 Noise Figure vs
Frequency Over Supply Voltage
30
3.0 V
3.3 V
3.6 V
+29
29
+27
+26
+25
+24
+23
27
26
25
24
23
+22
22
+21
21
902
915
–40 °C
+25 °C
+85 °C
28
Output Power (dBm)
Output Power (dBm)
+28
20
868
928
902
Frequency (MHz)
40
39
3.0 V
3.3 V
3.6 V
38
38
37
36
36
Gain (dB)
37
35
34
35
34
33
33
32
32
31
31
902
915
–40 °C
+25 °C
+85 °C
39
928
Frequency (MHz)
Figure 7. Transmit Path PA_IN to ANT1/ANT2 Gain vs Frequency
Over Supply Voltage
30
868
902
915
928
Frequency (MHz)
Figure 8. Transmit Path PA_IN to ANT1/ANT2 Gain vs Frequency
Over Temperature
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928
Figure 6. Transmit Path PA_IN to ANT1/ANT2 Output Power vs
Frequency Over Temperature
40
Gain (dB)
915
Frequency (MHz)
Figure 5. Transmit Path PA_IN to ANT1/ANT2 Output Power vs
Frequency Over Supply Voltage
30
868
928
Figure 4. Transmit Path PA_IN to ANT1/ANT2 Noise Figure vs
Frequency Over Temperature
+30
+20
868
915
Frequency (MHz)
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DATA SHEET • SKY65346-21 T/R FEM
2.5
2.1
2.3
1.9
1.7
1.5
1.3
1.1
0.9
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
868
–40 °C
+25 °C
+85 °C
2.1
Insertion Loss (dB)
Insertion Loss (dB)
2.5
3.0 V
3.3 V
3.6 V
2.3
0.7
902
915
0.5
868
928
902
915
928
Frequency (MHz)
Frequency (MHz)
Figure 9. Transceiver Switch Insertion Loss (RFIO to TSW_TX) vs
Frequency Over Supply Voltage
Figure 10. Transceiver Switch Insertion Loss (RFIO to TSW_TX) vs
Frequency Over Temperature
+32.5
+32.0
+32.5
3.0 V
3.3 V
3.6 V
+31.5
+32.0
OIP3 (dBm)
OIP3 (dBm)
+31.0
+30.5
+30.0
+29.5
+29.0
+30.5
+30.0
+29.5
+29.0
+28.5
+28.5
+28.0
+27.5
868
–40 °C
+25 °C
+85 °C
+31.5
+31.0
+28.0
902
915
+27.5
868
928
902
915
928
Frequency (MHz)
Frequency (MHz)
Figure 11. Transceiver Switch OIP3 (RFIO to TSW_TX) vs
Frequency Over Supply Voltage
Figure 12. Transceiver Switch OIP3 (RFIO to TSW_TX) vs
Frequency Over Temperature
20
20
3.0 V
3.3 V
3.6 V
19
18
–40 °C
+25 °C
+85 °C
19
18
17
Gain (dB)
Gain (dB)
17
16
15
14
13
15
14
13
12
12
11
10
868
16
11
902
915
928
Frequency (MHz)
Figure 13. Receive Path Gain (LNA_IN to RFIO) vs Frequency Over
Supply Voltage
10
868
902
915
928
Frequency (MHz)
Figure 14. Receive Path Gain (LNA_IN to RFIO) vs Frequency Over
Temperature
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DATA SHEET • SKY65346-21 T/R FEM
5.0
5.0
4.5
3.0 V
3.3 V
3.6 V
4.0
3.5
3.0
2.5
2.0
1.5
3.5
3.0
2.5
2.0
1.5
1.0
1.0
0.5
0.5
0
868
902
915
–40 °C
+25 °C
+85 °C
4.5
Noise Figure (dB)
Noise Figure (dB)
4.0
0
868
928
902
Figure 15. Receive Path Noise Figure (LNA_IN to RFIO) vs
Frequency Over Supply Voltage
–6
–7
–7
3.0 V
3.3 V
3.6 V
–8
–40 °C
+25 °C
+85 °C
–8
–9
IP1dB (dBm)
–9
IP1dB (dBm)
928
Figure 16. Receive Path Noise Figure (LNA_IN to RFIO) vs
Frequency Over Temperature
–6
–10
–11
–12
–10
–11
–12
–13
–13
–14
–14
–15
–15
–16
868
915
Frequency (MHz)
Frequency (MHz)
902
915
–16
868
928
902
915
928
Frequency (MHz)
Frequency (MHz)
Figure 17. Receive Path IP1dB (LNA_IN to RFIO) vs Frequency
Over Supply Voltage
Figure 18. Receive Path IP1dB (LNA_IN to RFIO) vs Frequency
Over Temperature
+12
+12
3.0 V
3.3 V
3.6 V
+11
+10
+10
+9
+8
IIP3 (dBm)
IIP3 (dBm)
+9
+7
+6
+5
+8
+7
+6
+5
+4
+4
+3
+2
868
–40 °C
+25 °C
+85 °C
+11
+3
902
915
928
Frequency (MHz)
Figure 19. Receive Path IIP3 (LNA_IN to RFIO) vs Frequency Over
Supply Voltage
+2
868
902
915
Figure 20. Receive Path IIP3 (LNA_IN to RFIO) vs Frequency Over
Temperature
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928
Frequency (MHz)
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DATA SHEET • SKY65346-21 T/R FEM
3.0
3.0 V
3.3 V
3.6 V
2.8
2.6
–40 °C
+25 °C
+85 °C
Isolation (dB)
19
18
17
16
15
14
13
12
11
10
868
Insertion Loss (dB)
20
2.4
2.2
2.0
1.8
1.6
1.4
1.2
902
915
1.0
868
928
902
Frequency (MHz)
915
928
Frequency (MHz)
Figure 21. Receive Path Isolation (LNA_IN to TSW_TX) vs
Frequency Over Temperature
Figure 22. Receive Bypass Mode Insertion Loss (LNA_IN to RFIO)
vs Frequency Over Supply Voltage
+35
3.0
+31
+29
2.4
IIP3 (dBm)
Insertion Loss (dB)
2.6
2.2
2.0
1.8
+27
+25
+23
+21
1.6
1.4
+19
–40 °C
+25 °C
+85 °C
1.2
1.0
868
3.0 V
3.3 V
3.6 V
+33
2.8
902
915
+17
+15
868
928
902
Frequency (MHz)
Figure 23. Receive Bypass Mode Insertion Loss (LNA_IN to RFIO)
vs Frequency Over Temperature
1.0
+33
–40 °C
+25 °C
+85 °C
+31
0.9
0.8
Insertion Loss (dB)
+29
IIP3 (dBm)
928
Figure 24. Receive Bypass Mode IIP3 (LNA_IN to RFIO) vs
Frequency Over Supply Voltage
+35
+27
+25
+23
+21
0.7
0.6
0.5
0.4
0.2
+17
0.1
902
915
928
Frequency (MHz)
Figure 25. Receive Bypass Mode IIP3 (LNA_IN to RFIO) vs
Frequency Over Temperature
–40 °C
+25 °C
+85 °C
0.3
+19
+15
868
915
Frequency (MHz)
0
868
902
915
928
Frequency (MHz)
Figure 26. Receive Path Switch Loss (ANT1/ANT2 to ASW_RX) vs
Frequency Over Temperature
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DATA SHEET • SKY65346-21 T/R FEM
+55
+54
–40 °C
+25 °C
+85 °C
+53
OIP3 (dBm)
+52
+51
+50
+49
+48
+47
+46
+45
868
902
915
928
Frequency (MHz)
Figure 27. Receive Path OIP3 (ANT1/ANT2 to ASW_RX) vs Frequency Over Temperature
Evaluation Board Description
The SKY65346-21 Evaluation Board is used to test the
performance of the SKY65346-21 FEM. An Evaluation Board
schematic diagram is provided in Figure 28. An assembly drawing
for the Evaluation Board is shown in Figure 29 and the layer detail
is provided in Figure 30.
Package Dimensions
The PCB layout footprint for the SKY65346-21 is provided in
Figure 31. Typical case markings are shown in Figure 32.
Package dimensions for the 26-pin MCM are shown in Figure 33,
and tape and reel dimensions and provided in Figure 34.
Circuit Design Configurations
The following design considerations are general in nature and
must be followed regardless of final use or configuration:
1. Paths to ground should be made as short as possible.
2. The ground pads of the SKY65346-21 have special electrical
and thermal grounding requirements. These pads are the main
thermal conduit for heat dissipation. Since the circuit board
acts as the heat sink, it must shunt as much heat as possible
from the device. Therefore, design the connection to the ground
pads to dissipate the maximum wattage produced by the circuit
board. Multiple vias to the grounding layer are required.
3. Two external output bypass capacitors (10 nF and 100 pF) are
required on pin 23 (VCC2). The same two capacitor values are
also required on pin 9 (VCC1). The capacitors should be placed
in parallel between the supply line and ground.
Package and Handling Information
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.
THE SKY65346-21 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 the Skyworks Application Note,
PCB Design & SMT Assembly/Rework Guidelines for MCM-L
Packages, document number 101752.
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.
4. Pins 9 and 23 (VCC1 and VCC2, respectively) may be connected
together at the supply.
NOTE: A poor connection between the slug and ground increases
junction temperature (TJ), which reduces the lifetime of the
device.
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DATA SHEET • SKY65346-21 T/R FEM
22 nF
50 Ω
PA Input
5.6 pF
6.8 nH
DNI
12 kΩ
PA Power Supply
50 Ω
100 pF
4
5
6
Digital Control Line
4.7 kΩ
7
8
VCC2
VCC2
RBIAS2
PA_IN
100 pF
22
GND
RFIO
GND
VDD
GND
CTL1
GND
CTL2
GND
CTL3
ANT2
RBIAS1
ANT1
GND
9
10
11
10 nF
21
20
19
18
17
16
50 Ω
15
50 Ω
Antenna Port
Antenna Port
12
GND
10 nF
Digital Control Line
Digital Control Line
23
GND
3
Digital Power Supply
24
ASW_RX
2
GND
VCC1
50 Ω
RF Transceiver
25
TSW_TX
26
1
LNA_IN
Transceiver Switch
Transmit Port
GND
14
13
LNA Power Supply
10 nF
LNA Input
1 nF
0Ω
50 Ω
DNI
Antenna Switch
Receive Port
Ferrite Bead
1000 Ω
100 pF
6.2 nH
50 Ω
NOTE: The T-lines shown are a reminder to use 50 Ω traces.
S1771
Figure 28. SKY65346-21 Evaluation Board Schematic
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DATA SHEET • SKY65346-21 T/R FEM
J2
J3
J2
TSW_TX
J3
PA_IN
J1
RFIO
J4
ANT2
C1
L2
C2
L1
R2
J1
J4
C4
C3
C7
R1
EN30-D735-003
EN30-D730
C8
J6
LNA_IN
L4
C5
C6
J6
C9
L3
J5
KEY
CTL3
CTL2
CTL1
J5
ANT1
C11 C12 C13
GND
VDD
VCC2
VCC2
SENSE
GND
C10
L5
J7
ASW_RX
P1
J7
S1820
Figure 29. SKY65346-21 Evaluation Board Assembly Diagram
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DATA SHEET • SKY65346-21 T/R FEM
Layer 1: Top – Metal
Layer 1: Solder Mask
Layer 2: Ground
Layer 4: Solid Ground Plane
S1821
Figure 30. SKY65346-21 Evaluation Board Layer Detail
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DATA SHEET • SKY65346-21 T/R FEM
5.3
0.4
Stencil Aperture Size for
Center Ground Pad Should
be 80 to 100% (by Area) of the
Module/Pkg. Solder Mask
Opening
0.3
0.05
0.15
0.05
0.75
4X 0.075
5.3
0.85
Stencil and
Metallization
4X 1.4
Package Outline
Soldermask Opening
Package Outline
SMT Pad Detail
Scale: 2X
5X This Rotation
5X Rotated 180o
6X Rotated 90o CW
6X Rotated 90o CCW
4X 1.4
4X 0.075
Stencil Aperture
Top View
5.4
2.95
0.85
0.75
0.05
2X 0.15
0.05
0.75
5.4
0.85
2.95
Stencil and
Metallization
Package Outline
Soldermask Opening
Package Outline
SMT Pad Detail
Scale: 2X
1X This Rotation
1X Rotated 180o
1X Rotated 90o CW
1X Rotated 90o CCW
Solder Mask Opening
Top View
Pin 26
Pin 1
2X 2.275
4.55
2X 2.275
(1.2)
4X 0.3
0.25 Typ
4.55
Thermal via array Ø0.3 mm
On 0.6 mm pitch. Additional
vias will improve thermal and
electrical performance.
NOTE: thermal vias should be
tented and filled with solder mask,
30-35 μm Cu plating recommended.
(1.2)
0.6 Pitch
Typ
Package Outline
Metallization
Top View
Note: The cross-hatched area represents the merger of the center
ground pad +10 individual I/O ground pads. All I/O ground
pads should have at least one via connected to internal ground
planes for optimum electrical performance.
All dimensions are in millimeters
S1822
Figure 31. SKY65346-21 PCB Layout Footprint
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DATA SHEET • SKY65346-21 T/R FEM
Pad 1
Identifier
Line 1
PART NUMBER — VERSION
Line 2
LOT NUMBER
Line 3
YEAR WEEK COUNTRY CODE
NOTE: Lines 1, 2, 3 have a maximum of 12 characters
Line 1 = Part Number and Version
Line 2 = Lot Number
Line 3 = Year–Week–Country Code (MX)
S1823
2X 0.775
4X 0.6
B
16X 2.4
5
4X Solder Mask Opening
0.2 A B C
4X 1.2
Figure 32. Tyical Case Markings
(Top View)
Pin 26
Pin 1Indicator
(see Detail D)
C
Pin 1
Indicator
Pin 1
14X 2.4
4X 1.5
4X 0.9
4X 0.3
5
0
A
2X 0.775
B
See Detail C
0
0.9 ± 0.1
A
0.15 A B C
0.1
26X SMT Pad
0.1 A B C
Top View
0.5 ± 0.1
Bottom View
Side View
0.5 ± 0.1
Solder Mask
Edges
(0.1)
(0.1)
Solder Mask
Edges
0.3 ± 0.05
0.2 x 0.2
1.4
0.4 ± 0.05
Solder Mask
Edges
Metal Pad
3 Edges
0.5 ± 0.1
Solder Mask
Edges
Pad
Scale: 2X
6X
6X
5X
5X
Metal Pad
Edge
(0.1)
Detail A
1.4
1.4
Detail D
Detail B
Pad
Scale: 2X
This rotation
Rotated 180o
Rotated 90o CW
Rotated 90o CCW
1X
1X
1X
1X
This rotation
Rotated 180o
Rotated 90o CW
Rotated 90o CCW
1.4
3X Detail C
All measurements are in millimeters
Dimensioning and tolerancing according to ASME Y14.5M-1994
S1734
Figure 33. SKY65346-21 26-Pin MCM Package Dimensions
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DATA SHEET • SKY65346-21 T/R FEM
8.00 (P1)
4.00 (P0)
2.00 ± 0.05
∅1.55 ± 0.05
0.30 ± 0.05
B
1.75 ± 0.10
5.35 (Bo)
A
12.00 ± 0.30
A
5.50 ± 0.05
Pin #1
Indicator
5o Max.
B
∅1.50 Min.
1.30 (Ko)
5.35 (Ao)
B
5o Max.
Notes:
1. Carrier tape: black conductive polystyrene
2. Cover tape material: transparent conductive PSA
3. Cover tape size: 9.3 mm width
4. ESD surface resistivity is ≤1 x 1010 Ohms/Square
according to EIA, JEDIC TNR specification.
5. P0/P1 10 pitches cumulative tolerance on tape: ±0.20 mm
6. A and B measurement points are 0.30 mm from bottom pocket.
7. All dimensions are in millimeters
A
S461a
Figure 34. SKY65346-21 Tape and Reel Dimensions
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June 11, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201827B
DATA SHEET • SKY65346-21 T/R FEM
Ordering Information
Model Name
SKY65346-21 900 MHz T/R FEM
Manufacturing Part Number
SKY65346-21
Evaluation Board Part Number
TW19-D960
Copyright © 2012 Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by
Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the
information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to
update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes.
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THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A
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Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury,
death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any
damages resulting from such improper use or sale.
Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of
products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for
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Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands
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