6 Bit Digital Step Attenuator

1 MHz to 4000 MHz

5

Rev 1, May 2017

IDTF1912NCGI

Datasheet

Parameter

Symbol

Conditions

Min

Typ

Max

Units

MSB Step Time

End ±0.10 dB Pout settling for

15.5 dB to 16.0 dB transition

500

ns

Maximum spurious level on

-140

dBm

Maximum Switching

Frequency

25

kHz

DSA Settling time

Max to Min Attenuation to

settle to within 0.5 dB of final

value

0.9

s

Min to Max Attenuation to

settle to within 0.5 dB of final

value

1.8

Control Interface

6

bit

Serial Clock Speed

25

MHz

Note 1: Items in min/max columns in

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

Note 3: The input 0.1dB compression point is a linearity figure of merit. Refer to Absolute Maximum Ratings section for the maximum RF input

power.

Note 4: Spurious due to on-chip negative voltage generator. Typical generator fundamental frequency is 2.2 MHz.

Note 5: Speeds are measured after SPI programming is completed (data latched with LE = HIGH).