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PDF SKY77181 Data sheet ( Hoja de datos )
| Número de pieza | SKY77181 | |
| Descripción | Power Amplifier Module | |
| Fabricantes | Skyworks Solutions | |
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PRELIMINARY DATA SHEET
SKY77181 Power Amplifier Module for WCDMA / HSDPA
(880–915 MHz)
Applications
• WCDMA Handsets
• HSDPA Handsets
• Personal Communications
Services (PCS)
• Wireless local loop (WLL)
Features
• No VREF required
• Low voltage positive bias
- 3.1 V to 4.6 V
• Supports low collector
voltage operation
• Good linearity
• High efficiency at all power
levels (13.5% at 15 dBm)
• Large dynamic range
• Low Profile package
- 3 x 3 x 1.1 mm
• 8-pad configuration
• Power down control
• InGaP
• Digital VENABLE
• Digital or Analog VCONTROL
Description
The SKY77181 Power Amplifier module is a fully matched 8-pad surface mount module developed for
Wideband Code Division Multiple Access (WCDMA) applications. This small and efficient power
amplifier packs full coverage of the 880–915 MHz bandwidth into a single compact package. The
SKY77181 meets the stringent spectral linearity requirements of High Speed Downlink Packet Access
(HSDPA) data transmission with high power added efficiency for power output of up to 28 dBm.
Because of high efficiencies attained throughout the entire power range, the SKY77181 delivers
unsurpassed talk-time advantages.
The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all active
circuitry in the module. The MMIC includes on-board bias circuitry, as well as input and interstage
matching circuits. The output match is realized off-chip within the module package to optimize
efficiency and power performance into a 50 Ω load. This device is manufactured with Skyworks’
InGaP GaAs Heterojunction Bipolar Transistor (HBT) process that provides for all positive voltage DC
supply operation while maintaining high efficiency and good linearity. Primary bias to the SKY77181 is
supplied directly from a three-cell Ni-Cd, a single-cell Li-Ion, or other suitable battery with an output
in the 3.1 to 4.6 volt range. No VREF voltage is required. Power down is accomplished by setting the
voltage on VENABLE to zero volts. Digital bias control can be used to optimize efficiency at high and low
power or analog bias control can be used to optimize efficiency over the entire power range. No
external supply side switch is needed as typical “off” leakage is a few microamperes with full primary
voltage supplied from the battery.
Figure 1. SKY77181 Functional Block Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200643A • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • January 7, 2008
1
1 page  
SKY77181 POWER AMPLIFIER MODULE FOR WCDMA (880–915 MHz)
www.DataSheet4U.com
PRELIMINARY DATA SHEET
Table 5. Standard Test Configuration — WCDMA Voice Mode (Uplink Reference Measurement Channel: 12.2 kbps)
Parameter
Level
Spread Code
Spread Factor
I/Q βc
βd βhs
Relative Power
Information Bit Rate
12.2 kbps
—
— —— — —
DPCCH
15.0 kbps
0
256
Q 8/15
—
—
–6.57 dB
DPDCH
60.0 kbps
16
64
I — 15/15 —
–1.087 dB
TFCI
ON
—
— —— — —
—
Table 6. SKY77181 Electrical Specifications for HSPDA — Recommended Operating Conditions 1
Refer to Table 7: Standard Test Configuration — HSDPA Mode
HSDPA (High Speed Downlink Packet Access) 2
Characteristics
Symbol
Condition
Minimum
Typical
Maximum
Gain Conditions
High Power
Low Power
GHIGH
GLOW
PO_MAX
PO = –10 dBm
27.0 30.0 33.0
12.5 16.0 19.5
Gain Variation Over Frequency
Fixed VCC, Temp.
——
1
Power Added Efficiency
High Power
Low Power
PAEHIGH
PAELOW
PO_MAX
TCASE = +25 °C
PO = 14 dBm
TCASE = +25 °C
34.0 36.0
11.0 12.0
—
—
Error Vector Magnitude
EVM
—
——
5
Adjacent Channel Leakage power Ratio 3
5 MHz offset
10 MHz offset
ACLR1_H
ACLR1_L
ACLR2_H
ACLR2_L
PO_MAX
VCONT = 15 V
PO = 9 dBm
PO_MAX
VCONT = 15 V
PO = 9 dBm
—
—
—
—
1 Refer to condition in Table 2 and Table 3, unless otherwise specified.
2 Data in this Table were verified with the signal configuration shown in Table 7.
3 ACLR is specified per 3GPP as the ratio of in-band power to adjacent power, both measured in 3.84 MHz bandwidth at specified offsets.
–38.0
–45.0
–52.0
–60.0
–35.5
–42.0
–48.0
–53.0
Unit
dB
dB
%
%
dBc
Parameter
DPCCH
DPDCH
HS– DPDCH
TFCI
Level
15 kbps
60 kbps
15 kbps
On
Table 7. Standard Test Configuration — HSDPA Mode
Spread Code
Spread Factor
I/Q βc
0 256 Q 12/15
16 64 I —
64 256 Q —
— — ——
βd
—
15/15
—
βhs
—
—
24/15
—
Relative Power
–8.17 dB
–6.23 dB
–2.15 dB
—
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200643A • Skyworks Proprietary and Confidential Information. • Products and product Information are subject to change without notice. • January 7, 2008
5
5 Page 
www.DataSheet4U.com
Ordering Information
Model Number
SKY77181
Manufacturing
Part Number
SKY77181
Product Revision
Package
MCM3x3LM
Operating Temperature
–20 °C to 85 °C
Revision History
Revision
A
Level
Date
January 7, 2008
Description
Initial Issue – Preliminary Information
References
Application Note: PCB Design and SMTP Assembly/Rework, Document Number 101752
Application Note: Tape and Reel Information – RF Modules, Document Number 101568
Standard SMTP Reflow Profiles: JEDEC Standard J–STD–020
© 2007, 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. Skyworks assumes no responsibility for errors or omissions in these materials. Skyworks may make changes to its 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 products and product descriptions.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as may be provided in Skyworks’ Terms and Conditions of Sale for
such products, Skyworks assumes no liability whatsoever.
THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, 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 INTELLECTUAL
PROPERTY RIGHT. SKYWORKS FURTHER DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE
MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS
THAT MAY RESULT FROM THE USE OF THESE MATERIALS.
Skyworks® products are not intended for use in medical, lifesaving or life-sustaining applications. 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.
The following are trademarks of Skyworks Solutions, Inc.: Skyworks®, the Skyworks symbol, and “Breakthrough Simplicity”®. Product names or services listed in this publication are for
identification purposes only, and may be trademarks of third parties. Third-party brands and names are the property of their respective owners.
Additional information, posted at www.skyworksinc.com, is incorporated by reference.
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