SKY85608-11 Datasheet, PDF (4/9 Pages) Skyworks Solutions Inc. – 5 GHz, 802.11ac Switch-Low-Noise Amplifier

DATA SHEET • SKY85608-11: WLAN SWITCH/LNA FEM
Table 7. SKY85608-11 Control Logic (Note 1)
Mode
Regulator
Output
CRX
(Pin 2)
LEN
(Pin 4)
CTX
(Pin 6)
All off
Off
0
0
0
WLAN receive
Off
1
1
0
WLAN receive bypass
Off
1
0
0
WLAN transmit
On
0
0
1
Note 1: “0” = 0 V to +0.4 V. “1” = +1.6 V to +3.6 V. Any state other than described in this table places the switch into an undefined state. An undefined state will not damage the device.
Evaluation Board Description
The SKY85608-11 Evaluation Board is used to test the
performance of the SKY85608-11 LNA FEM. An Evaluation Board
schematic diagram is provided in Figure 3. A photograph of the
Evaluation Board is shown in Figure 4.
Evaluation Board Setup Procedure
1. Connect the system ground to pin 2 of connector J4.
2. Apply 3.3 V to VDD pin 6 or 12 of connector J4.
3. Refer to the Control Logic Table in Table 7 to set the device in
the desired mode of operation. Set CRX, CTX, and LEN to
appropriate VIL and VIH voltages, as specified in Table 3.
4. Transmit performance is monitored by applying an RF signal to
the connector J1 (TX) and measuring the output power at the
antenna port connector J2 (ANT).
5. Monitor performance in either high gain or bypass mode by
applying an RF signal to the antenna port connector J2 (ANT)
and measuring the output power at the receive port connector
J3 (RX).
Evaluation Board Losses
The total track losses from the RF connectors of the Evaluation
Board to the pins of the SKY85608 device are:
ANT: 0.25 dB
TX: 0.25 dB
RX: 0.25 dB
Package Dimensions
The PCB layout footprint for the SKY85608-11 is provided in
Figure 5. A typical part marking is shown in Figure 6. Package
dimensions for the 8-pin DFN are shown in Figure 7, and tape and
reel dimensions are provided in Figure 8.
Package 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 SKY85608-11 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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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July 13, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202959I