DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4 October 13, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201004C
Table 4. SKY65338-21 Electrical Specifications (Note 1)
(Frequency = 460 MHz, VCC1 = VCC2 = VREF1 = VREF2 = VC_BIAS = 3.6 V, T
C = +25
°
C, Unless Otherwise Noted)
Parameter Symbol Test Condition Min Typical Max Units
Operating frequency range f 450 470 MHz
Transmit path small signal gain G CW, PIN = –30 dBm 30 32 dB
Transmit saturated output power PSAT CW, PIN = –4 dBm +25 +27 dBm
Transmit path Noise Figure NF 5.5 6.5 dB
Transmit path harmonics (2
nd
to 10
th
) Pf2 to Pf10 CW, POUT = +25 dBm 55 dBc
Power Added Efficiency PAE CW, POUT = +27 dBm 30 36 %
Receive path insertion loss RX_LOSS 0.6 1.0 dB
Transmit/receive path isolation ISOL CW 27 30 dB
Input return loss S11 15 19 dB
Output return loss S22 9 14 dB
Quiescent current IQ No RF 45 55 mA
Operating current IOP POUT = +25 dBm 315 350 mA
Leakage current ILEAK No RF input, module in
standby mode
2 μA
Maximum VSWR for stable operation VSWRMAX CW 8:1
Note 1: Performance is guaranteed only under the conditions listed in this Table and is not guaranteed over the full operating or storage temperature ranges. Operation at elevated
temperatures may reduce reliability of the device.
Typical Performance Characteristics
(V
CC = 3.6 V, Tc = 25
°
C, Unless Otherwise Noted)
10
12
14
16
18
20
22
24
26
28
30
50
100
150
200
250
300
350
400
450
500
550
–20 –18 –16 –14 –12 –10 –8 –6 –4 –2 0 +2
P
OUT
(dBm)
Operating Current (mA)
P
IN
(dBm)
Output Power, POUT
Operating Current, IOP
Figure 3. Output Power and Operating Current vs Input Power
Voltage
0
5
10
15
20
25
30
35
40
+10 +12 +14 +16 +18 +20 +22 +24 +26 +28 +30
PAE (%)
POUT (dBm)
Figure 4. Power-Added Efficiency vs Output Power
DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201004C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 13, 2009 5
22
24
26
28
30
32
34
+10 +12 +14 +16 +18 +20 +22 +24 +26 +28 +30
Gain (dB)
P
OUT
(dBm)
–40 °C
+25 °C
+85 °C
Figure 5. Gain vs Output Power Over Temperature
29.5
30.0
30.5
31.0
31.5
32.0
32.5
450 460 470
Transmit Path Small Signal Gain (dB)
Frequency (MHz)
–40 °C
+25 °C
+85 °C
Figure 7. Gain vs Frequency Over Temperature
70
75
80
85
50
55
60
65
90
95
100
F2 F3 F4 F5 F6 F7 F8 F9 F10
Harmonics Suppression (dBc)
Harmonic Order
Figure 9. Harmonics
22
20
24
26
28
30
32
34
+10 +12 +14 +16 +18 +20 +22 +24 +26 +28 +30
Gain (dB)
P
OUT
(dBm)
2.8 V
3.0 V
3.6 V
4.0 V
Figure 6. Gain vs Output Power Over Supply Voltage
0
100
200
300
400
500
600
+10 +12 +14 +16 +18 +20 +22 +24 +26 +28 +30
Operating Current (mA)
P
OUT
(dBm)
–40 °C
+25 °C
+85 °C
Figure 8. Operating Current vs Output Power Over Temperature
0.50
0.52
0.54
0.56
0.58
0.60
0.62
450 460 470
Receive Path Insertion Loss (dB)
Frequency (MHz)
–40 °C
+25 °C
+85 °C
Figure 10. Receive Insertion Loss vs Frequency Over
Temperature
DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
6 October 13, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201004C
Table 5. SKY65338-21 SPDT Switch Control Logic
Mode V1 Signal (Pin 9) V2 Signal (Pin 8)
Transmit 1 0
Receive 0 1
Note: Logic level 0: 0 V to 0.2 V
Logic level 1: 2.0 V to 5.0 V
Evaluation Board Description
The SKY65338-21 Evaluation Board is used to test the
performance of the SKY65338-21 FEM. The Evaluation Board
schematic diagram is shown in Figure 11. An assembly drawing
for the Evaluation Board is shown in Figure 12 and the layer detail
is provided in Figure 13. The layer detail physical characteristics
are noted in Figure 14. Table 6 provides the Bill of Materials
(BOM) list for Evaluation Board components.
Circuit Design Considerations
The following design considerations are general in nature and
must be followed regadless of final use or configuration:
1. Paths to ground should be made as short as possible.
2. The ground pad of the SKY65338-21 has special electrical
and thermal grounding requirements. This pad is 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 pad to dissipate the maximum wattage produced by
the circuit board. Multiple vias to the grounding layer are
required.
NOTE: A poor connection between the slug and ground increases
junction temperature (T
J), which reduces the lifetime of the
device.
Package Dimensions
The phone board layout footprint for the SKY65338-21 is shown
in Figure 15. Package dimensions for the 12-pin MCM are shown
in Figure 16, and tape and reel dimensions are provided in
Figure 17.
SKY65338
S1348
J4
SMA
J2
SMA
J3
SMA
Voltage Bias
DC Supply 1
PA Enable
DC Supply 2
Switch Logic (V1)
Switch Logic (V2)
Voltage Reference 2
Voltage Reference 1
1
123456789
2
3
456
12 11 10
9
8
7
TX_IN
GND
RX_OUT
VC_BIAS
VREF1
VREF2
VCC1
PA_EN
VCC2
V2
Switch Logic
Voltage Bias
Voltage Reference 2
Voltage Reference 1
DC Supply 1
DC Supply 2
PA Enable
9-Header
V1
ANT
Switch Logic
50 Ω Transmission
Line
50 Ω Transmission
Line
50 Ω Transmission
Line
Figure 11. SKY65338-21 Evaluation Board Schematic

SKY65338-21

Mfr. #:
Manufacturer:
Skyworks Solutions, Inc.
Description:
RF Front End 450-470MHz PAE 36% Psat 25 dBm
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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