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RFFM8850PSB Datasheet(PDF) 4 Page - RF Micro Devices

Part # RFFM8850PSB
Description  Dualband 2.4GHz and 5.0GHz 802.11b/g/n/a/ac Wi-Fi짰 Switch LNA Front End Module
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Manufacturer  RFMD [RF Micro Devices]
Direct Link  http://www.rfmd.com
Logo RFMD - RF Micro Devices

RFFM8850PSB Datasheet(HTML) 4 Page - RF Micro Devices

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RF Micro Devices Inc.
7628 Thorndike Road, Greensboro, NC 27409-9421
DS150107
For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice@rfmd.com.
The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of
third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended
application circuitry and specifications at any time without prior notice.
4 of 10
RFFM8850P
Parameter
Specification
Unit
Condition
Min
Typ
Max
Receive (ANT5-RX5)-Bypass
Mode
5.0GHz Band, VDD5 = 3.6V, unless otherwise noted
Insertion Loss - Nominal
5
7
12
dB
T = 25°C, VDD5 = 3.6V
RX5 Port Return Loss
10
15
dB
ANT5 Port Return Loss
12
20
dB
Input P1dB
+18
+21
dBm
T = 25°C, VDD5 = 3.6V
Control Line Specifications
5.0GHz Band, VDD5 = 3.6V, unless otherwise noted
VDD5 Leakage Current - Nominal
0
0.2
10
uA
Control Line Impedance – VTX5
40
MΩ
Control Line Impedance – LNA_EN5
66
kΩ
Control Line Impedance – VRX5
40
MΩ
Leakage Current – VDD5
0.2
10
µA
5G Switch Control Current – High -
Each Line
5
100
µA
5G Switch Control Current – Low -
Each Line
0.5
1
µA
T = 25°C, VDD5 = 3.6V
Switching Speed
100
500
ns
Isolation
VDD2 = 3.6V and VDD5 = 3.6V, unless otherwise noted
ANT5 to RX5
25
dB
ANT2 to RX2
25
dB
ANT5 to ANT2
40
dB
Switch Control Logic Truth Table
Operating Mode
VTX2
LNAEN2
VBT
VTX5
LNAEN5
VRX5
802.11b/g/n Rx Bypass - Standby
Low
Low
Low
802.11b/g/n TX2 Mode
High
Low
Low
802.11b/g/n RX2 Gain Mode
Low
High
Low
BT TX
Low
Low
High
5.0 GHz Standby Mode
Low
Low
Low
802.11a/n/ac TX5 Mode
High
Low
Low
802.11a/n/ac RX5 Gain Mode
Low
High
High
802.11a/n/ac RX5 Bypass Mode
Low
Low
High
Note: 2G: High = 2.8 to VDD2, Low = 0V to 0.2V, and 5G: High = 2.8 to VDD5, Low = 0V to 0.2V.


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