50MHz to 1000MHz High-Linearity,

Serial/Analog-Controlled VGA

4

_______________________________________________________________________________________

+5V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)

(

otherwise noted.) (Note 6)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output -1dB Compression Point

17

18.7

dBm

Second Harmonic

(Note 5)

-61

-70

dBc

Third Harmonic

(Note 5)

-74

-87

dBc

Input from ANALOG_VCTRL

1

Attenuator Response Time

(Note 9)

Input from CS rising edge

3.2

µs

Group Delay

Maximum gain setting, includes EV kit PCB

delays

0.8

ns

Input Return Loss

50

Ω source, maximum gain setting

30

dB

Output Return Loss

50

Ω load, maximum gain setting

16

dB

ANALOG ATTENUATOR

Insertion Loss

1.2

dB

Input Second-Order Intercept

Point

IIP2

setting,

70

dBm

Input Third-Order Intercept Point

IIP3

setting,

∆f = 1MHz

36

dBm

Attenuation Range

Analog control input

31

dB

Gain-Control Slope

Analog control input

-12.5

dB/V

Maximum Gain-Control Slope

Over analog control input range

-35

dB/V

Insertion Phase Change

Over analog control input range

18

Degrees

Group Delay vs. Control Voltage

Over analog control input range

-0.25

ns

Analog Control Input Range

0.25

2.75

V

Analog Control Input Impedance

80

k

Ω

Input Return Loss

50

Ω source, maximum gain setting

22

dB

Output Return Loss

50

Ω load, maximum gain setting

22

dB

DAC

Number of Bits

8

Bits

DAC code = 00000000

0.25

Output Voltage

DAC code = 11111111

2.75

V