7
Rev 0
DEMO MANUAL DC2609A
TYPICAL DC2609A REQUIREMENTS AND CHARACTERISTICS
PARAMETER
INPUT OR OUTPUT
PHYSICAL LOCATION
DETAILS
9V-12V Power Supply
Input
J30 Banana Jack
Powers the onboard 8V VCO, the onboard 3.3V
reference and the LTC6952 5V V
CP
+ supply pins.
Power down onboard reference (U2) by setting
jumper JP2 to position 2-3.
Power down onboard VCO (U9) by setting jumper
JP3 to position 2-3.
4V-6V Power Supply
Input
J32 Banana Jack
Powers the LTC6952 3.3V supply pins (V
OUT
+
,
V
REF
+
, V
VCO
+
, and V
D
+
). Option available to power
supplies from single LDO, or an LDO and an LTC
Silent Switcher. Refer to Table 1.
GND
Output
J33 Banana Jack
Pair with J30 and J32
OUT9
+
; OUT9
–
J3 and J4 SMA Connectors*
CML, AC-Coupled, 800mVpk Differential
OUT8
+
; OUT8
–
J5 and J6 SMA Connectors*
OUT5
+
; OUT5
–
J19 and J20 SMA Connectors*
OUT4
+
; OUT4
–
J17 and J18 SMA Connectors*
OUT1
+
; OUT1
–
J11 and J12 SMA Connectors*
OUT0
+
; OUT0
–
J9 and J10 SMA Connectors*
OUT10
+
; OUT10
–
Two Outputs
(Not Connected)
J1 and J2 (SMA Not Populated)
Onboard Differential 100Ω termination
OUT7
+
; OUT7
–
J7 and J8 (SMA Not Populated)
OUT6
+
; OUT6
–
J21 and J22 (SMA Not Populated)
OUT3
+
; OUT3
–
J15 and J16 (SMA Not Populated)
OUT2
+
; OUT2
–
J13 and J14 (SMA Not Populated)
VCO
+;
VCO
–
Input
(Not connected)
J28 and J29 SMA Connector
Default: Not Connected
(see Table 2, for correct input termination options)
REF
+
;REF
–
Input
(Not connected)
J24 and J25 SMA Connector
Default: Not Connected
EZS_SRQ
+
Input
J27 SMA Connector/E1 Turret
Default: Preferred Single-Ended Input
EZS_SRQ
–
Input
J26 SMA Connector/E3 Turret
Default: Shorted to GND
ISD
Input
Test Point
3.3V(Default): Device Active, set by pull-up resistor
GND: Shut Down Device
STAT
Output
JP1 Jumper
Red LED D1 illuminates when STAT pin in high state
*Any unused RF output must be powered down or terminated with 50Ω, or poor spurious performance may result.
ASSEMBLY OPTIONS
Table 5. DC2609A Options
Assembly Version
Part Number
DC2609A-A
LTC6952IUKG
