DATA SHEET
SKY66423-11: 860 to 930 MHz RF Front-End Module
Applications
PA_OUT
LP-WAN devices
Internet of Things
Smart meters
Industrial applications
Range extender
PA
TX_IN
Features
Integrated PA with +27 dBm output power
Integrated LNA with noise figure of 1.5 dB, typical
Alternate TX input pin simplifies connection to any SoC
Transmit bypass path with low loss: < 1.5 dB
Single-ended 50
transmit/receive RF interface
Fast turn-on/turn-off time: <4 μs Rx mode and <2 μs Tx mode
Supply voltage: 2.0 to 4.8 V
Sleep mode current: < 1 μA
MCM (16-pin, 3.0 x 3.0 x 0.75 mm) NiPdAu plated package
(MSL3, 260
C
per JEDEC J-STD-020)
Skyworks
Green
TM
products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to
Skyworks
Definition of Green
TM
, document number
SQ04–0074.
N/C
PA_OUT
VCC1
VCC0
TX
CPS
CTX
CSD
Logic
Control
ANT
RX
LNA
LNA_IN
RX_FLT
204566-001
Figure 1. SKY66423-11 Block Diagram
Description
The SKY66423-11 is a high-performance, highly integrated RF
front-end module designed for high-power Industrial, Scientific,
Medical (ISM) band applications operating in the 860 to
930
MHz
frequency range.
The SKY66423-11 is designed for ease of use and maximum
flexibility with fully matched 50
TX and RX inputs and antenna
outputs, and digital controls compatible with 1.6 to 3.6 V CMOS
levels.
The RF blocks operate over a wide supply voltage range from 2.0
to 4.8 V allowing the SKY66423-11 to be used in battery powered
applications over a wide spectrum of the battery discharge curve.
The SKY66423-11 is packaged in a 16-pin, 3.0 x 3.0 x 0.75 mm
Multi-Chip Module (MCM) package.
12
GND
16
15
14
13
TX
1
RX
2
GND
11
TX_IN
A functional block diagram of the SKY66423-11 is provided in
Figure 1. Figure 2 shows the pinout for the SKY66423-11. Table 1
lists the pin assignments and signal descriptions.
TX_ALT
3
10
GND
CSD
4
9
ANT
5
CPS
6
CTX
7
LNA_IN
8
RX_FLT
204566-002
Figure 2. SKY66423-11 Pinout
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204566H • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2018
1
DATA SHEET • SKY66423-11: 860 TO 930 MHz RF FRONT-END MODULE
Table 1. SKY66423-11 Signal Descriptions
Pin
1
2
3
4
5
6
7
8
9
TX
RX
TX_ALT
CSD
CPS
CTX
LNA_IN
RX_FLT
ANT
Name
Description
Transmit mode RF input
Receive mode RF output
Transmit mode RF input (alternate pin)
Shutdown control input
Bypass mode select input
Transmit mode select input
LNA input (from RX filter)
RX signal from antenna (to RX filter)
Connect to 50
Ω
antenna
Pin
10
11
12
13
14
15
16
Paddle
Name
GND
TX_IN
GND
PA_OUT
N/C
VCC0
VCC1
GND
Description
Connect to PCB ground
TX input signal to antenna (from OMN)
Connect to PCB ground
PA output and positive power supply
Not connected internally to the device
Positive power supply
Positive power supply
Exposed die paddle; electrical and thermal
ground. Connect to PCB ground
Electrical and Mechanical Specifications
Table 2 provides the absolute maximum ratings, and Table 3
shows the recommended operating conditions. Electrical
specifications are provided in Tables 4 through 6.
Table 2. SKY66423-11 Absolute Maximum Ratings
1
Parameter
Supply voltage on VCC0 (no RF)
Supply voltage on VCC1 and PA_OUT (no RF)
Operating temperature
Storage temperature
Tx input power at TX port
TX input power at TX port (bypass mode)
Rx input power at ANT port
Electrostatic discharge:
Human Body Model (HBM), Class 1C
at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
The state of the SKY66423-11 is determined by the control logic
shown in Tables 7 and 8.
Symbol
V
CC0
V
CC
T
A
T
STG
P
IN
_
TX
_
MAX
P
IN_TX_BYP_MAX
P
IN
_
RX
_
MAX
ESD
Minimum
-0.3
-0.3
-40
-40
Maximum
5.5
5.5
85
125
+10
+20
+10
Units
V
V
°C
°C
dBm
dBm
dBm
1000
V
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
ESD HANDLING:
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 when handling or transporting. Static charges may easily produce
potentials of several kilovolts on the human body or equipment, which can discharge without detection.
Industry-standard ESD handling precautions should be used at all times.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
May 17, 2018 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 204566H
DATA SHEET • SKY66423-11: 860 TO 930 MHz RF FRONT-END MODULE
Table 3. SKY66423-11 Recommended Operating Conditions
Parameter
Supply voltage on VCC0
Supply voltage on VCC1 and PA_OUT
Ambient temperature
V
CC
0
V
CC
T
A
Symbol
Min
2.0
2.0
-40
Typ
3.3
3.3
+25
Max
4.8
4.8
+85
Units
V
V
°C
Table 4. SKY66423-11 DC Electrical Specifications
1
(Vcc0 = Vcc1 = 3.3 V, f = 915 MHz, T
A
= +25
C,
Unless Otherwise Noted)
Parameter
Total supply current, transmit mode
Total supply current, receive mode
Total supply current, transmit bypass mode
Quiescent current
Sleep supply current
Symbol
I
CC
_
TX
27
I
CC
_
RX
I
CC
_
T
XB
I
CQ
_
TX
I
CC
_
OFF
Test Condition
P
OUT
= +27 dBm
No RF
No RF
No RF
No RF
Min
Typ
280
5
200
48
1.00
Max
Units
mA
mA
μA
mA
μA
1 Performance is guaranteed only under the conditions listed in this table.
Table 5. SKY66423-11 AC Electrical Specifications: Transmit Mode
(Vcc0 = Vcc1 = 3.3 V, T
A
= +25
C,
All Unused Ports Terminated at 50
,
Unless Otherwise Noted. Input Port TX, Output Port ANT,
Matching Network Connected between the PA_OUT and TX_IN)
Parameter
Frequency range
Output power at ANT
1, 2
Small signal gain
1, 2
Small signal gain variation
1, 2
Input return loss
1, 2
Output return loss
1, 2
Input 1 dB compression point, bypass mode
2
nd
harmonic
3
3
rd
to 10
th
harmonic
3
Insertion loss (bypass mode)
Turn-on time
4
Turn-off time
5
Stability
f
P
OUT
_915
P
OUT
_868
S
21_915
S
21_868
S
21
S
11
S
22
BYP_IP1dB
2fo
3fo to 10fo
S
21_BYP
t
ON
t
OFF
STAB
CW, P
IN
= +6 dBm
0.1
GHz
to 20
GHz
load VSWR = 6:1
CW, P
OUT
= +27 dBm into 50
Ω,
load VSWR = 10:1
f =
915
MHz
f = 868 MHz
f =
915
MHz
f = 868 MHz
Peak to peak gain variation across
frequency band
Into 50
(TX port)
Into 50
(ANT port)
Bypass mode
P
OUT
= +27 dBm
P
OUT
= +27 dBm
TX to ANT
1
+20
+7
-42
1.5
2
1
-10
-10
Symbol
Test Condition
Min
860
+27
+27
29
29
1
Typ
Max
930
Units
MHz
dBm
dBm
dB
dB
dB
dB
dB
dBm
dBm
dBm
dB
μs
μs
All non-harmonically related outputs less than -42 dBm
Ruggedness
RUG
No permanent damage
1
900
to
930
MHz with specified matching network on the Evaluation Board.
2 860 to 870 MHz with specified matching network on the Evaluation Board.
3 Measured with continuous wave signal.
4 From 50% of CTX edge to
90%
of final RF output power.
5 From 50% of CTX edge to 10% of initial RF output power.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204566H • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2018
3
DATA SHEET • SKY66423-11: 860 TO 930 MHz RF FRONT-END MODULE
Table 6. SKY66423-11 AC Electrical Specifications: Receive Mode
(Vcc0 = Vcc1 = 3.3 V, T
A
= +25
C,
All Unused Ports Terminated at 50
Ω,
Unless Otherwise Noted. Input Port ANT, Output Port RX, 0
Ω
Connected between RX_FLT and LNA_IN)
Parameter
Frequency range
Receive gain
Receive noise figure
Input third order intercept
Input 1-dB compression point
Antenna port return loss
RX port return loss
Turn-on time
1
Turn-off time
2
1 From 50% of CTX edge to
90%
of final RF output power.
2 From 50% of CTX edge to 10% of initial RF output power.
Symbol
f
IN
R
X
_
GAIN
NF
IIP3
IP1dB
S11
ANT
S22
RX
t
ON
t
OFF
Test Condition
Min
860
Typ
Max
930
Units
MHz
dB
18
1.5
-6.5
-16.5
Into 50
(ANT port)
Into 50
(RX port)
-2
-12
-12
-12
2.5
1
2.5
dB
dBm
dBm
dB
dB
μs
μs
Table 7. SKY66423-11 Electrical Specifications: Control Logic Characteristics
1
(T
A
= +25
C,
Unless Otherwise Noted)
Parameter
Control voltage:
High
Low
Input current:
High
Low
V
IH
V
IL
I
IH
I
IL
Symbol
Test Condition
Min
1.6
2
0
Typ
Max
VCC0
0.3
2
1
1
Units
V
V
μA
μA
1 Performance is guaranteed only under the conditions listed in this table.
2 Logic inputs must be VCC0 or
GND
to achieve specified sleep currents.
Table 8. SKY66423-11 Electrical Specifications: Mode Control Logic (T
A
= +25)
Mode
Shutdown
Receive LNA mode
Transmit bypass
Transmit
CSD
0
1
1
1
CTX
x
1
0
1
1
CPS
x
1
x
1
0
1
1 X (don't care) inputs must be held at VCC0 or
GND
to achieve specified sleep current.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4
May 17, 2018 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 204566H
DATA SHEET • SKY66423-11: 860 TO 930 MHz RF FRONT-END MODULE
Evaluation Board Description
The SKY66423-11-EK1 Evaluation Board is designed to
demonstrate the performance of the SKY66423-11 RF Front-End
Module. It is optimized for evaluation, experimentation, and
investigation, using CW (continuous wave) signals.
Figure 3 shows the Evaluation Board. The Evaluation Board
schematic diagram for
915
MHz application is provided in
Figure 4. The Bill of Materials (BOM) for the SKY66423-11
Evaluation Board for
915
MHz application is listed in Table
9.
The Evaluation Board schematic diagram for 868 MHz application
is provided in Figure 5. The Bill of Materials (BOM) for the
SKY66423-11 Evaluation Board for 868 MHz application is listed
in Table 10.
Figure 3. SKY66423-11 Evaluation Board
Note: The placement of the capacitors is correct. Only the designator markings on the Evaluation Board will be changed.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204566H • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2018
5
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