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. Specified typical performance or
functional operation of the device under Absolute
Maximum Rating conditions is not implied.
Nominal Operating Parameters
Specification
Parameter
Min
Compliance
Operating Frequency
Operating Temperature
Power Supply V
DD
Control Voltage-High
Control Voltage-Low
2.412
-40
3.0
2.8
25
3.6
3.1
0
2.484
85
5.0
V
DD
0.2
GHz
°C
V
V
V
VTX, VRX, LNAEN, and VBT Should not exceed V
CC
voltage
Unit
Typ
Max
Condition
802.11b, 802.11g, 802.11n, 802.11ac
Transmit (TX-ANT)
Insertion Loss
TX Port Return Loss
ANT Port Return Loss
Input P1dB
ANT-Rx Isolation
12
12
27
28
0.6
20
20
30
35
1.2
dB
dB
dB
dBm
dB
V
DD
= 3.6V over frequency, unless otherwise noted
T = 25°C, V
DD
= 3.6V
T = 25°C, V
DD
= 3.6V
TX is enables and at Max power
Receive (ANT-RX)-LNA On
Gain (S21)
Gain Flatness over any 20MHz
BW
Gain Flatness across band
Noise Figure
RX Port Return Loss
ANT Port Return Loss
Input P1dB
Current Consumption
LNA_EN Control Current
LNA Turn On Time
-7
6
11
10
-0.25
-0.5
2.3
15
5
-5
9
250
200
13
500
500
13
13
16
17
+0.25
+0.5
2.7
10
3
dB
dB
dB
dB
dB
dB
dB
dBm
mA
µA
nS
V
DD
= 3.6V, over frequency, unless otherwise noted
T =25°C, V
DD
= 3.6V
T =-40 to +85C°, V
DD
= 3.0V to 5V
T = 25°C, V
DD
= 3.6V
T = 25°C, V
DD
= 3.6V
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or
customerservice@rfmd.com.
DS20180226
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.
2 of 8
RFFM8250
Specification
Parameter
Min
Receive (ANT-RX)-Bypass
Mode
Insertion Loss
RX Port Return Loss
ANT Port Return Loss
Input P1dB
17
5
7
10
10
+21
10
8
8
dB
dB
dB
dBm
Unit
Typ
Max
Condition
V
DD
= 3.6V, unless otherwise noted
T= 25°C, V
DD
= 3.6V
Bluetooth TX/RX
Input P1dB
Insertion Loss
BT Port Return Loss
ANT Port Return Loss
12
12
25
+27
0.6
20
20
1.3
dBm
dB
dB
dB
V
DD
= 3.6, unless otherwise noted
T = 25°C, V
DD
= 3.6V
General Specifications
Control Line Impedance - VTX
Control Line Impedance – LNAEN
Control Line Impedance - VRX
Control Line Impedance - VBT
V
DD
Leakage Current
Switch Control Current-High-Each
Line
Switch Control Current-Low-Each
Line
Switching Speed
ESD-Human Body Model
ESD-Charge Device Model
40
65
40
40
1
1
0.1
100
1000
1000
10
10
1
500
MΩ
KΩ
MΩ
MΩ
µA
µA
µA
ns
V
V
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or
customerservice@rfmd.com.
DS20180226
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.
3 of 8
RFFM8250
Switch Control Logic Truth Table
Operating Mode
Standby
802.11b/g/n/ac TX Mode
802.11b/g/n/ac RX Gain
802.11b/g/n/ac RX Bypass
BT RX/TX
Notes:
•
High = 2.8 to V
CC
. Low = 0V to 0.2V.
VTX
Low
High
Low
Low
Low
LNAEN
Low
Low
High
Low
Low
VRX
Low
Low
High
High
Low
VBT
Low
Low
Low
Low
High
Timing Diagram
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or
customerservice@rfmd.com.
DS20180226
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 8
RFFM8250
Applications Schematic
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or
customerservice@rfmd.com.
DS20180226
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.
