SKY65378_11 Datasheet, PDF (6/12 Pages) Skyworks Solutions Inc. – 860 to 930 MHz RF Front-End Module

DATA SHEET • SKY65378-11: 860 TO 930 MHz RF FRONT-END MODULE
Table 8. SKY65378-11 Electrical Specifications: Logic Characteristics (Note 1)
(TA = +25 C as Measured on Evaluation Board [De-Embedded to Device], Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Voltage logic input:
High
VIH
1.6
Low
VIL
0
Note 1: Performance is guaranteed only under the conditions listed in this table.
Note 2: For ANT_SEL, the maximum voltage is 3.6 V.
Max
Vcc (Note 2)
0.3
Units
V
V
Table 9. SKY65378-11 Mode Logic Truth Table (Note 1)
Mode
CPS
(Pin 3)
CSD
(Pin 1)
CTX
(Pin 4)
Sleep (all off)
0
0
0
Receive low gain
0
1
0
Receive high gain
1
1
0
Transmit
X
1
1
Shutdown (Note 2)
0
0
1
Shutdown (Note 2)
1
0
0
Shutdown (Note 2)
1
0
1
Note 1: See Table 8 for logic voltage levels. “X” = don’t care
Note 2: Expect approximately 15 μA through each control pin that has logic high. For true sleep mode, set CPS, CSD, and CTX low.
Table 10. SKY65378-11 Antenna Port Logic Truth Table
Mode
CPS
(Pin 3)
CSD
(Pin 1)
ANT1 port enabled
X
X
ANT2 port enabled
X
X
Note 1: See Table 8 for logic voltage levels. “X” = don’t care
CTX
(Pin 4)
X
X
ANT_SEL
(Pin 7)
0
1
Evaluation Board Description
The SKY65378-11 Evaluation Board is used to test the
performance of the SKY65378-11 FEM. An Evaluation Board
schematic diagram is shown in Figure 3. Table 11 provides the
Bill of Materials (BOM) list for Evaluation Board components. A
photograph of the Evaluation Board is shown in Figure 4.
Evaluation Board Setup Procedure
1. Connect J1, J2, and J3 to 50 Ω instruments. If applicable,
terminate all unused ports with 50 Ω.
2. Connect the supply ground to pin 1 of the J4 header.
3. Connect 3.6 V to pin 3 or 4 of the J4 header. Refer to Tables 9
and 10 for path selection logic.
Transmit Performance. The 860 MHz to 930 MHz (depending on
the region) amplifier performance is monitored by applying an RF
signal to J5 (TX_IN) and measuring the output power on J2
(ANT2) or J3 (ANT1).
If use of the TR port is desired, the RF signal first enters connector
J1 (TR), exits connector J6 (TX_FLT) through an external PA and
filter – or is directly shorted to connector J5 (TX_IN) – then
passed to either J2 (ANT2) or J3 (ANT1).
Receive Performance. The 860 MHz to 930 MHz LNA
performance is monitored by applying an RF signal to J2 (ANT2)
or J3 (ANT1) and measuring the output signal on J1 (TR).
CAUTION: Care should be taken not to overdrive the device by
applying too much RF on the input. A suitable starting
input power is –20 dBm.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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July 9, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202510E