Voltage Variable RF Attenuator

50MHz to 6000MHz

Voltage Variable RF Attenuator

4

REV 4, January 2017

F2250NLGK

Datasheet

tone for two tone tests, two tone delta frequency = 50MHz, PCB board traces and connector losses are de-embedded

unless otherwise noted. Refer to Typical Operating Curves for performance over entire frequency band.

Parameter

Symbol Comment

Min

Typ

Max

Units

Insertion Loss, IL

(Minimum Attenuation)

2GHz

1.4

dB

3GHz

1.6

6GHz

2.6

3.1

Maximum Attenuation

35

dB

Insertion Phase Δ

At 36dB attenuation

relative to Insertion Loss

27

deg

At 18dB attenuation

relative to Insertion Loss

10

P1dB

34.4

dBm

Minimum RF1 Return Loss

over control voltage range

S11

16

dB

700MHz

17

2000MHz

17

6000MHz

15

Minimum RF2 Return Loss

over control voltage range

S22

16

dB

700MHz

15

2000MHz

16

6000MHz

13

Input IP3

IIP3

65

dBm

Input IP3 over Attenuation

All attenuation settings

44

47

Minimum Output IP3

Maximum attenuation

35

Input IP2

IIP2

IM2 term is F1+F2

95

dBm

Minimum Input IP2

All attenuation settings

87

dBm

Input IH2

HD2

90

dBm

Input IH3

HD3

54

dBm

Settling Time

Any 1dB step in the 0dB

to 33dB control range

within ± 0.1dB

15

µsec

Specification Notes:

1 – Items in min/max columns in

2 – Items in min/max columns that are not bold/italics are Guaranteed by Design Characterization.

3 – The input 1dB compression point is a linearity figure of merit. Refer to Absolute Maximum Ratings section.

along with Figure 1 for the maximum RF input power vs. RF frequency.

4 – Set blocking capacitors C7 & C8 to 0.01uF to achieve best return loss performance at 50MHz.