Analog Devices LTC6955, Demo Manual

Page: 5 / 10

5
DEMO MANUAL DC2611A
Rev. 0
TYPICAL DC2611A REQUIREMENTS AND CHARACTERISTICS
Table 4.
PARAMETER INPUT OR OUTPUT PHYSICAL LOCATION DETAILS
3.3V Power Supply Input J27 and J28 BNC Banana Jacks If R18 populated , default option , single supply: 3.3V low-
noise and spur-free supply, 1A;
If R18 depopulated , dual supply option, allows for
experiments with more efficient power supply evaluation
(Silent Switcher).
See 3.3V power supply #2 (VIN33)
3.3V Power Supply #2 (VIN33) Input E10 Turret (VIN33) If R18 depopulated , dual supply option , 3.3v low-noise and
spur-free supply, 150mA;
OUT10+; OUT10– Two Outputs J1 and J2 SMA Connectors* CML, AC-coupled, 800mV
P-P
differential
OUT8+; OUT8– J5 and J6 SMA Connectors*
OUT6+; OUT6– J21 and J22 SMA Connectors*
OUT4+; OUT4– J17 and J18 SMA Connectors*
OUT1+; OUT1– J11 and J12 SMA Connectors*
OUT0+; OUT0– J9 and J10 SMA Connectors*
OUT9+; OUT9– Two Outputs
(Not Connected)
J3 and J4 (SMA Not Populated) On board differential 100Ω termination
OUT7+; OUT7– J7 and J8 (SMA Not Populated)
OUT5+; OUT5– J19 and J20 (SMA Not Populated)
OUT3+; OUT3– J15 and J16 (SMA Not Populated)
OUT2+; OUT2– J13 and J14 (SMA Not Populated)
IN+ Input
(Not Connected)
J26 SMA Connector Default: Not connected
(see Table 3, for correct input termination options)
IN- Input J25 SMA Connector Default: Preferred single-ended input
(see Table 3, for correct input termination options)
FILT Input, Center Pin JP1 3-Pin Header L(Default): FILT disabled, set by pull-down resistor
H: FILT enabled
TEMP Output E1 Turret (TEMP) Internal temperature diode
*Any unused RF output must be powered down or terminated with 50Ω, or poor spurious performance may result.
ASSEMBLY OPTIONS
Table 5. DC2611A Assembly Options
ASSEMBLY VERSION U1 PART NUMBER
DC2611A-A LTC6955IUKG
DC2611A-B LTC6955IUKG-1