4DSP FMC230 User Manual - page 5
UM023 FMC230 User Manual
r1.11
UM023
www.4dsp.com
- 5 -
2
General description
The FMC230 is a two channel DAC FMC daughter card. The card provides two 14-bit up to
5.7 GSPS DAC channels which can be clocked by an internal clock source (optionally locked
to an external reference) or an externally supplied sample clock. There is one trigger input for
customized sampling control. The FMC daughter card is mechanically and electrically
compliant to FMC standard (ANSI/VITA 57.1). The FMC has a high-pin count connector, front
panel I/O, and can be used in a conduction-cooled environment.
The design is based on Analog Devices AD9129 single-channel 14-bit 5.7 GSPS DAC with
DDR LVDS inputs. The analog output signals are AC-coupled and connect to MMCX coax
connectors on the front panel.
The FMC allows flexible control of sampling frequency through serial communication busses.
Furthermore, the card is equipped with power supply and temperature monitoring, and it offers
several power-down modes to switch off unused functions or protect the card from
overheating.
Sample Clock
Trigger
F
M
C
C
o
n
n
e
c
to
r
H
P
C
4
0
0
P
in
s
Clock Tree
Status & Control
Clock
Clock Output
Monitoring
DAC A
AD9129
single channel
14-bit, 5.7 GSPS
Status & Control
DDR LVDS
AD9129
single channel
14-bit, 5.7 GSPS
DAC B
Status & Control
DDR LVDS
Ref Clock
Figure 1: FMC230 block diagram
3
Installation
3.1 Requirements and handling instructions
Prevent electrostatic discharges by observing ESD precautions when handling the card.
Do not flex the card.
The FMC daughter card must be installed on a carrier card compliant to the FMC standard.
The FMC carrier card must support the high-pin count connector (400-pins) to support all
channels. A low-pin count connector is supported but may result in limited features.
The FMC carrier card may support a VADJ/VIO_B voltage of +1.2V to +3.3V.
The FMC700 is required in order to use the FMC230 on KC705.