50MHz to 1000MHz High-Linearity, Serial/

Parallel-Controlled Analog/Digital VGA

_______________________________________________________________________________________

5

+5V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)

(

noted.) (Note 5)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Analog Control Input Impedance

80

k

Ω

Input Return Loss

50

Ω source

22

dB

Output Return Loss

50

Ω load

22

dB

D/A CONVERTER

Number of Bits

8

Bits

DAC code = 00000000

0.25

Output Voltage

DAC code = 11111111

2.75

V

SERIAL PERIPHERAL INTERFACE (SPI)

Maximum Clock Speed

20

MHz

Data-to-Clock Setup Time

2ns

Data-to-Clock Hold Time

2.5

ns

Clock-to-CS Setup Time

3ns

CS Positive Pulse Width

7ns

CS Setup Time

3.5

ns

Clock Pulse Width

5ns

Note 5: All limits include external component losses. Output measurements are performed at RF output port of the

Typical

Application Circuit.

Note 6: Operating outside this range is possible, but with degraded performance of some parameters.

Note 7: Guaranteed by design and characterization.

Note 8: It is advisable not to operate continuously the VGA RF input above +15dBm.