DAT-15575-PN Datasheet, PDF (10/12 Pages) Mini-Circuits – Digital Step Attenuator

Digital Step Attenuator
DAT-15575-PN+
DAT-15575-PN
Pin 1 must always be low to prevent the attenuator from entering an unknown state.
Power-up Control Settings
The DAT-15575-PN always assumes a specifiable attenuation setting on power-up, allowing a known at-
tenuation state to be established before an initial parallel control word is provided.
When the attenuator powers up with LE=0, the control bits are automatically set to one of two possible
values. These two values are selected by the power-up control bit, PUP2, as shown in Table 3: (Power-Up
Truth Table, Parallel Mode).
Table 3. Power-Up Truth Table, Parallel Mode
Attenuation State
PUP2
LE
Reference
0
0
8 (dB)
1
0
Defined by C0.5-C8
(See Table 1-Truth Table)
X (Note 1)
1
Note 1: PUP2 Connection may be 0, 1, GROUND, or not
connect, without effect on attenuation state.
Power-Up with LE=1 provides normal parallel operation with C0.5-C8, and PUP2 is not active.
  




   







'.
  
)''#$/&
-
')#
 
 
 

.
 
 
')
+"$
()')%&
*(*

*!'(("&
'&$"&
*
"&""),"+*
-
*"+











  

 

 

Page 10 of 12