User's Manual

PRELIMINARY DATA SHEET • SKY85717-21: FRONT-END MODULE
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
2 August 18, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 203068E
5BTechnical Description
The SKY85717-21 is comprised of a high performance 5 GHz PA,
5 GHz LNA, and broadband SPDT switch. The device is fully-
matched, and requires few external components for optimal
performance, which makes it ideal for small portable/mobile
applications. The FEM provides up to +28 dB of gain over the
frequency band. The LNA supports an enable/disable mode for
power savings when not in receive mode and a bypass function
for increased receive dynamic range. The PA can be shut off
using the PA_EN signal (pin 6).
2BElectrical and Mechanical Specifications
Signal pin assignments and functional pin descriptions are
described in Table 1. The absolute maximum ratings of the
SKY85717-21 are provided in Table 2. The recommended
operating conditions are specified in Table 3 and electrical
specifications are provided in Tables 4, 5, and 6.
The state of the SKY85717-21 is determined by the logic provided
in Table 7.
6BPackage and Handling Information
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 SKY85717-21 is rated to Moisture Sensitivity Level 1 (MSL1)
at 260 C. It can be used for lead or lead-free soldering. For
additional information, refer to the Skyworks Application Note,
Solder Reflow Information, document number 200164.
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.
Table 1. SKY85717-21 Signal Descriptions
Pin Name Description Pin Name Description
1 GND Ground 9 VLIN Transmit linearity mode control
2 RX RF receive output 10 VCC1 Supply voltage
3 GND Ground 11 VCC2 Supply voltage
4 VDD LNA supply voltage and transmit bias 12 GND Ground
5 VDET Detector output voltage 13 ANT Antenna
6 PA_EN PA enable 14 GND Ground
7 GND Ground 15 CRX Switch control voltage
8 TX RF transmit input 16 LNA_EN LNA enable
Note: N/C = No connect. Keep pin floating.