RFFM4251

Wi-Fi Front End Module

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Data Sheet 20161130 | Subject to change without notice

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®

Absolute Maximum Ratings

Parameter

Rating

DC Supply Voltage

+6 V

DC Supply Current

600 mA

Storage Temperature

-40 to +150

 °C

TX RF Input Power into

50 Ω Load for

802.11b/g/n/ac (No Damage)

+10 dBm

RX LNA On RF Input Power (No Damage)

+10 dBm

Exceeding any one or a combination of the Absolute Maximum Rating

conditions may cause permanent damage to the device. Extended

application of Absolute Maximum Rating conditions to the device may

reduce device reliability.

Recommended Operating Conditions

Parameter

Min

Typ

Max

Units

Operating Frequency

2412

2484

MHz

+3.3

V

PA Enable Voltage

– High

+2.8

+3.1

V

PA Enable Voltage

– Low

+0

+0.2

V

−10

+85

°C

−40

+85

°C

Electrical specifications are measured at specified test conditions.

Specifications are not guaranteed over all recommended operating

conditions.

Electrical Specifications

Parameter

Conditions

Min

Typ

Max

Units

TRANSMIT (TX-ANT) MODE

C_BT=Low

11ac HT40 Output Power

MCS8 256QAM

17

18

dBm

-36

-35

dB

11n HT20/40 Output Power

MCS7 64QAM

18

19

dBm

Dynamic EVM

-32

-30.5

dB

Margin to HT20/40 Spectral Mask

2

0

dBc

Margin to 802.11b Spectral Mask

0

dBc

Gain

27

29

dB

Gain Variation

T = -10 to +85 °C

-3

+2

dB

Out of Band Gain

f = 1206-1242MHz

-3

0

dB

f = 3618-3726MHz

-3

0

dB

TX Port Return Loss

7

10

dB

ANT Port Return Loss

10

15

dB

Quiescent Current

RF Off

150

mA

Operating Current

210

250

mA

290

350

mA

-25

-20

dBm/MHz

-35

-25

dBm/MHz

ANT-RX Isolation

40

dB

DC Power Detect Voltage

RF Off

0.12

V

0.56

V

0.90

V