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PDF CX77140 Data sheet ( Hoja de datos )
| Número de pieza | CX77140 | |
| Descripción | PA Module for CDMA / AMPS | |
| Fabricantes | Skyworks Solutions | |
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U.comDATA SHEET
CX77140S: PheAeMt4odule for CDMA / AMPS (824–849 MHz)Applications
ta• Digital cellular (CDMA)
a• Analog cellular (AMPS)
.D• Wireless local loop (WLL)
wwwFeatures
m• Low voltage positive bias supply
- 3.2 V to 4.2 V
o• Low VREF
.c- 2.85 V, nominal
• Good linearity
U• High efficiency
• Dual mode operation
t4• Large dynamic range
e• 10-pin package
- 4 mm x 4 mm x 1.5 mm
e• Power down control
h• Low power-state control
• InGaP
S• IS95/CDMA2000
The CX77140 Power Amplifier Module (PAM) is a dual-mode, fully matched, 10-pin surface
mount module developed for Code Division Multiple Access (CDMA) / Advanced Mobile
Phone Service (AMPS) cellular handsets and Wireless Local Loop (WLL) applications. This
small and efficient power amplifier module packs full coverage of the 824–849 MHz
bandwidth into a single compact package. The device meets the stringent IS95 CDMA
linearity requirements up to at least 28 dBm output power, and can be driven to levels
beyond 31 dBm for high efficiency in FM mode operation. A low current digital pin (VCONT)
provides improved efficiency for the low RF power range of operation.
The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains
all active circuitry in the module. The MMIC contains on-board bias circuitry, as well as input
and interstage matching circuits. Output match is realized off-chip and within the module
package to optimize efficiency and power performance into a 50 Ω load. This device is
manufactured with Skyworks’ 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 CX77140 is supplied directly from a three-cell Ni-Cd, a
single-cell Li-Ion, or other suitable battery with an output in the range of 3.2 to 4.2 volt.
Power down is accomplished by setting the voltage on the low current reference pin to zero
volts. No external supply side switch is needed as typical “off” leakage is a few
microamperes with full primary voltage supplied from the battery.
www.Data taSheet4U.comFigure 1. Functional Block Diagram
ww.DaSkyworks Solutions, Inc. • Phone [781] 376-7000 • fax [781] 376-3100 • [email protected] • www.skyworksinc.com
w101980A • Skyworks Proprietary and Confidential Information • Products and product Information are subject to change without notice • December 3, 2003
1
1 page  
PA MODULE FOR CDMA / AMPS (824–849 MHZ)
DATA SHEET • CX77140
Characterization Data
The graphs in Figure 2 through Figure 8 illustrate the
characteristics of a typical CX77140 power amplifier designed for
operation in the CDMA/AMPS frequency band (824–849 MHz).
This amplifier was selected by characterizing a group of devices
and choosing a part with average electrical performance for both
nominal and the full range of recommended operating conditions,
including worst case limits.
The graphs illustrate the digital signal characteristics of the
CX77140. Shown are power sweep characteristics for key
performance parameters over temperature and frequency, up to
28 dBm output power. The data was taken up to and including
16 dBm output power with the bias mode control pin setting of
VCONT = 2.5 volts. Beyond 16 dBm output power, the VCONT was set
to 0 volts.
Figure 2. Digital Mode Gain vs. Output Power
Skyworks Solutions, Inc. • Phone [781] 376-7000 • fax [781] 376-3100 • [email protected] • www.skyworksinc.com
101980A • Skyworks Proprietary and Confidential Information • Products and product Information are subject to change without notice • December 3, 2003
5
5 Page 
PA MODULE FOR CDMA / AMPS (824–849 MHZ)
Figure 12. Pin Configuration and Pin Names (Top View)
DATA SHEET • CX77140
procedures recommended by Skyworks, please refer to Skyworks
Application Note: PCB Design and SMT Assembly/Rework,
Document Number 101752. Additional information on standard
SMT reflow profiles can also be found in the JEDEC Standard J–
STD–020B.
Production quantities of this product are shipped in the standard
tape-and-reel format. For packaging details, refer to Skyworks
Application Note: Tape and Reel, Document Number 101568.
Electrostatic Discharge Sensitivity
The CX77140 is a Class 2 device. Figure 14 lists the Electrostatic
Discharge (ESD) immunity level for each pin of the CX77140
product. The numbers in Figure 14 specify the ESD threshold level
for each pin where the I-V curve between the pin and ground
starts to show degradation.
ESD testing was performed in compliance with MIL-STD-883E
Method 3015.7 using the Human Body Model. If ESD damage
threshold magnitude is found to consistently exceed 2000 volts on
a given pin, this so is indicated. If ESD damage threshold below
2000 volts is measured for either polarity, numbers are indicated
that represent worst case values observed in product
characterization.
Figure 13. Typical Case Markings
Package and Handling Information
Because of its sensitivity to moisture absorption, this device
package is baked and vacuum-packed prior to shipment.
Instructions on the shipping container label must be followed
regarding exposure to moisture after the container seal is broken,
otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
The CX77140 is capable of withstanding an MSL3/240 °C solder
reflow. Care must be taken when attaching this product, whether
it is done manually or in a production solder reflow environment. If
the part is attached in a reflow oven, the temperature ramp rate
should not exceed 5 °C per second; maximum temperature should
not exceed 240 °C. If the part is manually attached, precaution
should be taken to insure that the part is not subjected to
temperatures exceeding 240 °C for more than 10 seconds. For
details on both attachment techniques, precautions, and handling
Figure 14. ESD Sensitivity Areas (Top View)
Various failure criteria can be utilized when performing ESD
testing. Many vendors employ relaxed ESD failure standards,
which fail devices only after “the pin fails the electrical
specification limits” or “the pin becomes completely non-
functional”. Skyworks employs most stringent criteria, fails
devices as soon as the pin begins to show any degradation on a
curve tracer.
To avoid ESD damage, both latent and visible, it is very important
that the product assembly and test areas follow the Class-1 ESD
handling precautions listed in Table 5.
Skyworks Solutions, Inc. • Phone [781] 376-7000 • fax [781] 376-3100 • [email protected] • www.skyworksinc.com
101980A • Skyworks Proprietary and Confidential Information • Products and product Information are subject to change without notice • December 3, 2003
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet CX77140.PDF ] | |
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