SKYWORKS TW13-D787-001

PRELIMINARY DATA SHEET
SKY65008: 250 – 2700 MHz Linear, Low Current Power
Amplifier Driver
Applications
Description
• AMPS, PCS, DCS, 2.5G, 3G, WCDMA, WLANs
Skyworks SKY65008 is a high performance, ultra-wideband
power amplifier driver with superior output power, linearity, low
current consumption, and efficiency. The high linearity and
superior Adjacent Channel Power Rejection/Adjacent Channel
Leakage Ratio (ACPR/ACLR) performance make the SKY65008
ideal for use in the driver stage of infrastucture transmit chains.
• ISM band
• Fixed WCS
• 802.11b/g WLANs
• WiMax
Features
• Wideband frequency range: 250 to 2700 MHz
• High efficiency: PAE 48%
The SKY65008 is fabricated using Skyworks high reliability InGaP
Heterojunction Bipolar Transistor (HBT) technology in the form of
a Pb-free, 3-pin, 4 x 4 mm Multi-Chip Module (MCM) package.
The device package and pinout are shown in Figure 1. A
functional block diagram is provided in Figure 2.
• High gain: 18 dB
• Single DC supply, +3 V
• MCM (3-pin, 4 x 4 mm) Pb-free package (MSL3, 250 °C per
JEDEC J-STD-0-20)
Skyworks offers lead (Pb)-free “environmentally
friendly” packaging that is RoHS compliant
(European Parliament for the Restriction of
Hazardous Substances).
1
2
3
1
RF_IN
GND
RF_OUT
RF_IN
2
GND
3
RF_OUT
S243
S587
Figure 1. SKY65008 Pinout – 3-Pin MCM Package
(Top View)
Figure 2. SKY65008 Block Diagram
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PRELIMINARY DATA SHEET • SKY65008
should not exceed 225 °C and the time spent at a temperature
that exceeds 210 °C should be limited to less than 10 seconds. If
the part is manually attached, precaution should be taken to
ensure that the part is not subjected to a temperature that
exceeds 300 °C for more than 10 seconds.
Electrical and Mechanical Specifications
Signal pin assignments and functional pin descriptions for the
SKY65008 are provided in Table 1. The absolute maximum
ratings are provided in Table 2, and the recommended operating
conditions in Table 3. Electrical characteristics of the SKY65008
are provided in Table 4.
For details on both attachment techniques, precautions, and
handling procedures recommended by Skyworks, please refer to
Skyworks Application Note, PCB Design and SMT
Assembly/Rework Guidelines for MCM-L Packages, document
number 101752. Additional information on standard SMT reflow
profiles can also be found in the JEDEC Standard J-STD-020.
The typical performance of the SKY65008 at various operating
frequencies is illustrated in Figures 3 through 9. Package
dimensions for the 3-pin MCM are shown in Figure 13, and tape
and reel dimensions are shown in Figure 14.
Production quantities of both package types for this product are
shipped in standard tape and reel formats. For packaging details,
refer to the Skyworks Application Note, Tape and Reel, document
number 101568.
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.
Electrostatic Discharge (ESD) Sensitivity
The SKY65008 is a static-sensitive electronic device. Do not
operate or store near strong electrostatic fields. Take proper ESD
precautions.
The SKY65008 can be used for lead or lead-free soldering. If the
part is attached in a reflow oven, the temperature ramp rate
should not exceed 5 °C per second. Maximum temperature
Table 1. SKY65008 Signal Descriptions
Pin #
Name
Description
1
RF_IN
RF input
2
GND
Ground
3
RF_OUT
RF output
Table 2. SKY65008 Absolute Maximum Ratings
(TA = +25 °C, unless otherwise noted)
Parameter
Symbol
Min
Typical
Max
Units
Supply voltage
VCC
4
V
RF output power
POUT
23
dBm
Supply current
ICC
110
mA
Power dissipation
PD
400
mW
Operating case temperature
TC
–40
+85
°C
Storage temperature
TST
–55
+125
°C
Junction temperature
TJ
150
°C
Note:
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 values.
Table 3. SKY65008 Recommended Operating Conditions
Min
Typical
Max
Units
Supply voltage
Parameter
VCC
Symbol
3.0
3.3
3.6
V
Frequency range
F
250
2700
MHz
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PRELIMINARY DATA SHEET • SKY65008
Table 4. SKY65008 Electrical Characteristics
(VCC = 3.3 V, TC = 25 °C, input and output load < –8 dB, unless otherwise noted)
Parameter
Symbol
Test Conditions
Min
Typical
Max
Units
Test Frequency = 900 MHz
Small signal gain
G
CW
28.5
dB
Output power @ 1 dB compression
P1DB
CW
19.5
dBm
Output 3rd Order Intercept Point
OIP3
Two tones, each @
+14 dBm/output tone
34
dBm
Noise figure
NF
3.3
dB
20
dB
Test Frequency = 1960 MHz
Small signal gain
G
CW
Output power @ 1 dB compression
P1DB
CW
21
dBm
Output 3rd Order Intercept Point
OIP3
Two tones, each @
+5 dBm/output tone
33
dBm
Noise Figure
NF
3.0
dB
Power-added efficiency
PAE
42
%
Quiescent current
IQ
No RF input
76
mA
Output power @ ACPR = –45 dBc
POUT
IS-95. Nine forward
channels
14
dBm
CW, POUT = +20 dBm
Test Frequency = 2140 MHz
Small signal gain
G
CW
20
dB
Output power @ 1 dB compression
P1DB
CW
21
dBm
Output 3rd Order Intercept Point
OIP3
Two tones, each @
+5 dBm/output tone
32
dBm
Noise Figure
NF
Output power @ ACLR = –45 dBc
POUT
3G-WCDMA. Downlink
test model #1 with
64 DPCH
3.0
dB
11
dBm
Small signal gain
G
CW
18.5
dB
Output power @ 1 dB compression
P1DB
CW
20
dBm
Output 3rd Order Intercept Point
OIP3
Two tones, each @
+5 dBm/output tone
33
dBm
Noise Figure
NF
3.0
dB
Test Frequency = 2450 MHz
Test Frequency = 2650 MHz
Small signal gain
G
CW
18
dB
Output power @ 1 dB compression
P1DB
CW
19
dBm
Output 3rd Order Intercept Point
OIP3
Two tones, each @
+5 dBm/output tone
32
dBm
Noise Figure
NF
3.0
dB
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PRELIMINARY DATA SHEET • SKY65008
32
31
Gain (dB)
30
29
28
27
26
25
850
870
890
910
930
950
Frequency (MHz)
Figure 3. Typical Small Signal Gain vs Frequency in the 900 MHz Band
21
Gain (dB)
20
19
18
1700
1800
1900
2000
2100
2200
Frequency (MHz)
Figure 4. Typical Small Signal Gain vs Frequency in the 1900 MHz Band
21
Gain (dB)
20
19
18
17
2000
2050
2100
2150
2200
2250
2300
Frequency (MHz)
Figure 5. Typical Small Signal Gain vs Frequency in the 2100 MHz Band
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April 21, 2005 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200292A
PRELIMINARY DATA SHEET • SKY65008
34.0
OIP3 (dB)
33.5
33.0
32.5
32.0
3
2
4
5
6
7
8
9
10
POUT (dBm)
Figure 6. Typical OIP3 vs Tone Output Power in the 1960 MHz Band
–40
–45
ACPR (dBc)
–50
–55
–60
–65
–70
–75
5
6
7
8
9
10
11
12
13
14
15
POUT (dBm)
Figure 7. Typical ACPR vs Output Power in the 1960 MHz Band
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PRELIMINARY DATA SHEET • SKY65008
+10
0
Power (dBc)
–10
–20
–30
–40
–50
–60
–70
2.41
2.42
2.43
2.44
2.45
2.46
2.47
2.48
2.49
Frequency (GHz)
Figure 8. Spectral Mask Performance @ 2450 MHz (802.11b CCK @ 11 Mbps Input Signal, POUT = 19 dBm)
+10
0
Power (dBc)
–10
–20
–30
–40
–50
–60
2.40
2.42
2.44
2.46
2.48
2.50
Frequency (GHz)
Figure 9. Spectral Mask Performance @ 2450 MHz (802.11g 64QAM @ 54 Mbps Input Signal, POUT = 17 dBm)
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PRELIMINARY DATA SHEET • SKY65008
Evaluation Board Description
A suggested matching circuit is shown in Figure 12 with
component values listed in Table 5.
The Skyworks SKY65008 Evaluation Board is used to test the
performance of the SKY65008 power amplifier driver. An
assembly drawing for the Evaluation Board is shown in Figure 10
and the layer detail is provided in Figure 11.
Testing Procedure
Use the following procedure to set up the SKY65008 Evaluation
Board for testing:
Circuit Design Configurations
1. Connect a 3.3 V supply to VCC. If available, enable the current
limiting function of the power supply to 240 mA.
The following design considerations are general in nature and
must be followed regardless of final use or configuration.
2. Connect a signal generator to the RF signal input port. Set it to
the desired RF frequency at a power level of –15 dBm or less
to the Evaluation Board but do NOT enable the RF signal.
1. Paths to ground should be made as short as possible.
2. The ground pad of the SKY65008 power amplifier 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 amplifier. As such, design the connection to
the ground pad to dissipate the maximum wattage produced
to the circuit board. Multiple vias to the grounding layer are
required.
3. Connect a spectrum analyzer to the RF signal output port.
4. Enable the power supply.
5. Enable the RF signal.
6. Take measurements.
CAUTION: If any of the output signals exceed the rated
maximum values, the SKY65008 Evaluation Board
can be permanently damaged.
NOTE: Junction temperature (TJ) of the device increases with a
poor connection to the slug and ground. This reduces the
lifetime of the device.
GND
VCC
GND
GND
JP1
R1
C7
R2
C8
C9
R3
J1 (RF In)
C1 C2
C5
L1
C3
L2
C4
C6
J2 (RF Out)
S446
Figure 10. Evaluation Board Assembly Drawing
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PRELIMINARY DATA SHEET • SKY65008
Layer 1: Top - Metal
Layer 2: Ground
Layer 3: Ground
Layer 4: Solid Ground Plane
S447
Figure 11. Evaluation Board Layer Detail
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April 21, 2005 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200292A
PRELIMINARY DATA SHEET • SKY65008
VCC = 3.3 V
C1
C2
R1
C3
R2
R3
L1
L2
1
M2
Input
4
3
M3
M1
2
Output
M5
M4
M6
S586
Figure 12. SKY65008 Evaluation Board Schematic
(Refer to Table 5 for Component Values)
Table 5. SKY65008 Evaluation Board Component Values vs Frequency
Evaluation Board Frequency (MHz)
Component
900
1960
2140
2450
2650
R1
0Ω
0Ω
0Ω
0Ω
0Ω
R2
750 Ω
750 Ω
750 Ω
750 Ω
750 Ω
R3
680 Ω
680 Ω
680 Ω
680 Ω
680 Ω
C1
1.0 µF
1.0 µF
1.0 µF
1.0 µF
1.0 µF
C2
10 pF
36 pF
6.8 pF
6.8 pF
6.8 pF
C3
18 pF
6.8 pF
36 pF
18 pF
18 pF
L1
47 nH
27 nH
27 nH
18 nH
18 nH
L2
47 nH
27 nH
27 nH
18 nH
18 nH
M1
4.7 nH
1 pF
1 pF
0.5 pF
0.5 pF
M2
5.6 pF
3.9 pF
1.8 pF
1.2 pF
1.0 pF
M3
7.5 pF
DNC
DNC
DNC
DNC
M4
1.0 pF
DNC
DNC
DNC
DNC
M5
18 pF
6.8 pF
15 pF
12 pF
12 pF
M6
5.6 nH
DNC
1 pF
1 pF
1 pF
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PRELIMINARY DATA SHEET • SKY65008
1.125
1.125
1.75
0.63
0.75
1.2
1.5
4.0 ± 0.05
0.1
0.1
0.25
4.0 ± 0.05
0.25
0.5
0.5
0.5
Bottom View
Side View
All measurements are in millimeters
S506
Figure 13. SKY65008 Package Dimensions
8.00 ± 0.10
4.00 ± 0.10
2.00 ± 0.05
∅1.50 ± 0.10
Reference Pin
Indicator
1.75 ± 0.10
B
A
12.00 +0.30/–0.10
A
5.50 ± 0.05
1.73 ± 0.10
4.35 ± 0.10
8o Max
B
∅1.50 ± 0.25
0.229 ± 0.02
B
7o Max
Notes:
1. Carrier tape material: black conductive polycarbonate
or polysterene
2. Cover tape material: transparent conductive PSA
3. Cover tape size: 9.3 mm width
4. All measurements are in millimeters
4.35 ± 0.10
A
S583
Figure 14. SKY65008 Tape and Reel Dimensions
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PRELIMINARY DATA SHEET • SKY65008
Ordering Information
Model Name
SKY65008 250-2700 MHz Linear, Low Current PA Driver
Ordering Part Number
SKY65008-21
Evaluation Kit Part Number
TW13-D781-001 (836 MHz)
TW13-D782-001 (900 MHz)
TW13-D783-001 (1960 MHz)
TW13-D784-001 (2140 MHz)
TW13-D786-001 (2450 MHz)
TW13-D787-001 (2650 MHz)
Copyright © 2005 Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products. These materials 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. Skyworks may make changes to its documentation, products,
specifications and product descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts,
incompatibilities, or other difficulties arising from future changes to its documentation, products, specifications and product descriptions.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by or under this document. Except as may be provided in Skyworks Terms and Conditions of
Sale for such products, Skyworks assumes no liability whatsoever in association with its documentation, products, specifications and product descriptions.
THESE MATERIALS ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED OR OTHERWISE, RELATING TO SALE AND/OR USE OF SKYWORKS PRODUCTS
INCLUDING WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER
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The following are trademarks of Skyworks Solutions, Inc.: Skyworks®, the Skyworks logo, and Breakthrough Simplicity®. Product names or services listed in this publication are for identification
purposes only, and may be trademarks of Skyworks or other third parties. Third-party brands and names are the property of their respective owners. Additional information, posted at
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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