User's Manual

PRELIMINARY DATA SHEET • SKY85717-21: FRONT-END MODULE
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203068E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 18, 2014 5
Table 6. SKY85717-21 Electrical Specifications: Control Logic Characteristics (Note 1)
(V
CC = 5.0 V, PA_EN = 3.3 V, LNA_EN = CRX = 0 V, TA = 25 °C, All Unused Ports Terminated with 50 Ω, Unless Otherwise Noted)
Parameter Symbol Test Condition Min Typical Max Units
Control voltage:
High
Low
V
IH
V
IL
1.6
0
3.6
0.4
V
V
Input current, high IIH 120 μA
Input current, low IIL 1 μA
TNote 1: Performance is guaranteed only under the conditions listed in this table.
Table 7. SKY85717-21 Control Logic
Mode CRX (Pin 15) LNA_EN (Pin 16)
(Note 1)
PA_EN (Pin 6)
(Note 2)
VLIN (Pin 9)
WLAN receive 1 1 0 0
WLAN receive bypass mode 1 0 0 0
WLAN transmit, high linearity mode 0 0 1 1
WLAN transmit, high efficiency mode 0 0 1 0
WLAN off 0 0 0 0
N
ote 1: LNA is on while LNA_EN is high. LNA is off and in bypass mode when LNA_EN is low.
N
ote 2: PA_EN controls PA enable and transmit/receive switch logic.