DATA SHEET
SKY65352-11: 2.4 GHz Transmit/Receive Front-End Module
with Integrated Low-Noise Amplifier
Applications
•
2.4 GHz ISM band radios
•
ZigBee
®
FEMs
•
IEEE 802.15.4 applications
Description
Skyworks
SKY65352-11
is
a high-efficiency Front-End Module
(FEM). The device contains a 2400 to 2500 MHz high efficiency
transmit path and a low-noise receive path.
The transmit path consists of a high efficiency Power Amplifier
(PA) and harmonic filter. The receive path contains a low current
Low-Noise
Amplifier (LNA).
The transmit and receive paths are connected to a common
Single-Pole, Double-Throw (SPDT) switch at both the input and
output.
There is an internal balun that allows either the transmit input or
the receive output to connect to a differential port.
The device is mounted in a
20-pin,
6 x 6 mm
Multi-Chip
Module
(MCM) Surface-Mounted Technology (SMT) package, which allows
for a highly manufacturable low-cost
solution.
A block diagram of the SKY65352-11 is shown in Figure 1. The
device package and pinout for the
20-pin
MCM are shown in
Figure
2.
Features
•
Transmit output power > +20 dBm
•
Receive path NF < 2.5 dB
•
High efficiency PA
•
Configurable transmit/receive paths
•
Internal switching and control circuits
•
Internal RF match and bias circuits
•
Single DC supply = 3.3
V
•
All RF ports are internally DC blocked
•
Small footprint, MCM (20-pin, 6 x 6 mm) SMT package (MSL3,
260
°C
per JEDEC J-STD-020)
Figure 1. SKY65352-11 Block Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201221E • Skyworks Proprietary
Information
• Products and Product Information are Subject to Change Without Notice • February 15, 2012
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DATA SHEET • SKY65352-11 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA
Figure 2. SKY65352-11 Pinout – 20-Pin MCM
(Top View)
Technical Description
Shut Down and T/R Switch Mode Control
Pin 8 (SDN) is used to enable the device while pin 20 (T_R)
enables transmit or receive mode. The following control logic is
used to configure the transmit, receive, or shut down mode of the
SKY65352-11:
SDN
(Pin 8)
High
High
Low
T_R
(Pin 20)
High
Low
Low
Mode
Transmit mode
Receive mode
Shut Down mode
operating conditions are specified in Table 3 and electrical
specifications are provided in Table
4.
The SKY65352-11 provides one RF differential port composed of
the RF_P and RF_N pin signals (pins 5 and 6, respectively). The
Smith chart shown in Figure 3 plots the impedance of the RF
differential port. Typical performance characteristics are shown in
Figures 4, 5, and 6.
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 SKY65352-11 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.
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.
Bottom Center Paddle
The bottom center paddles must be electrically grounded for
proper RF performance. Customers should place adequate
thermal vias under the ground paddles for optimum thermal
performance. The Evaluation Board layout can be used as a guide
for RF ground and thermal layout.
Electrical and Mechanical Specifications
Signal pin assignments and functional pin descriptions are
described in Table 1. The absolute maximum ratings of the
SKY65352-11 are provided in Table 2. The recommended
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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February 15, 2012 • Skyworks Proprietary
Information
• Products and Product Information are Subject to Change Without Notice • 201221E
DATA SHEET • SKY65352-11 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA
Table 1. SKY65352-11 Signal Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
Note:
Name
GND
GND
GND
BIAS_V
RF_P
RF_N
GND
SDN
RX_VCC
GND
Ground
Ground
Ground
Description
Pin #
11
12
13
14
15
16
17
18
19
20
GND
GND
ANT
GND
GND
GND
Name
Ground
Ground
Antenna port
Ground
Ground
Ground
Description
DC bias voltage to balun center tap
Positive common differential RF input/output
Negative common differential RF
input/output
Ground
Shut down enable
Receive DC supply, +3.3
V
Ground
TX_VCC
GND
N/C
T_R
Transmit DC supply, +3.3
V
Ground
No connection
Transmit/receive control
The bottom ground pad
must be
connected to RF ground.
Table 2. SKY65352-11 Absolute Maximum Ratings (Note 1)
Parameter
Supply voltage
Control voltage
Bypass voltage
RF
input power, antenna port
RF input power, differential
Case operating temperature
Storage
temperature
Junction temperature
Symbol
RX_VCC, TX_VCC
SDN, T_R
BIAS_V
P
IN
_
ANT
P
IN
_
TX
T
C
T
ST
T
J
–40
–55
Minimum
1.8
Maximum
4
3.6
4
+10
+8
+85
+125
+150
Units
V
V
V
dBm
dBm
°C
°C
°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.
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. SKY65352-11 Recommended Operating Conditions
Parameter
Frequency range
Supply voltage (TX_VCC, RX_VCC)
Shut down and T/R control voltage:
Low
High
f
VCC
T_R
L
,
SDN
L
T_R
H
,
SDN
H
Symbol
Minimum
2400
2.7
3.3
0
1.80
Typical
Maximum
2500
3.6
0.1
3.60
Units
MHz
V
V
V
1.62
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201221E • Skyworks Proprietary
Information
• Products and Product Information are Subject to Change Without Notice • February 15, 2012
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DATA SHEET • SKY65352-11 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA
Table 4. SKY65352-11 Electrical Specifications (Note 1)
(VCC = 3.3 V, T
C
= 25
°C,
P
IN
= +3 dBm, Unless Otherwise Noted)
Parameter
Frequency range
Return loss (Note 2)
Differential port impedance (RF_P and RF_N
pins) (Note 2):
Transmit mode
Receive mode
Transmitter Section
Saturated output power (Note 2)
Transmit output power
Operating current
2
nd
harmonic
3
rd
harmonic
Small signal gain (Note 2)
Leakage current
Spur (Note 2)
Ruggedness (Note 2)
Receive Section
Small signal gain
Noise Figure
3
rd
Order Input Intercept Point
G
NF
IIP3
Two CW tones, spaced
1 MHz apart
@ P
IN
=
–9
dBm
CW
–10
CW, P
IN
=
–20
dBm
7
10
2
–4
3
dB
dB
dBm
P
SAT
P
OUT
I
OP
Pn2
Pn3
G
H
I
LEAK
P
OUT
= +20 dBm
IEEE 802.15.4 OQPSK
modulated
IEEE 802.15.4 OQPSK
modulated
P
IN
=
–10
dBm
No RF input, VCC = 3.3
V,
SDN = 0 V, T_R = 0 V
VSWR up to 10:1 (all
phase angles)
VSWR up to 10:1 (all
phase angles)
+19.5
+21
+20.0
110
–53
–53
20
0.3
No parasitic oscillation >
–44
dBm
No module damage or permanent degradation
1
130
–43
–43
dBm
dBm
mA
dBm
dBm
dB
μA
–
–
f
RL
All RF ports
Symbol
Test Condition
Min
2400
12
Typical
Max
2500
Units
MHz
dB
Z
DTX
Z
DRX
60 + j78
123 + j31
Ω
Ω
Operating current
I
CC
7
12
mA
Note 1:
Performance is guaranteed only under the conditions listed in this Table.
Note 2:
Parameter is characterized under the conditions in this Table, but is not production tested.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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February 15, 2012 • Skyworks Proprietary
Information
• Products and Product Information are Subject to Change Without Notice • 201221E
DATA SHEET • SKY65352-11 TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA
Figure 3. Transmit and Receive Differential Impedance
(100
Ω
Reference)
Figure 4. Output Power vs Input Power
(f= 2.445 GHz, V
CC
= 3.3 V, T
C
= 25
°C)
Figure 5. Transmit Gain vs Output Power
(f= 2.445 GHz, V
CC
= 3.3 V, T
C
= 25
°C)
Figure 6. Transmit Operating Current vs Output Power
(f= 2.445 GHz, V
CC
= 3.3 V, T
C
= 25
°C)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201221E • Skyworks Proprietary
Information
• Products and Product Information are Subject to Change Without Notice • February 15, 2012
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