4DSP FMC150 Руководство пользователя - Страница 6

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FMC150 User Manual

2 General description

The FMC150 is a four channel ADC/DAC FMC daughter card. The card provides two 14-bit
A/D channels and two 16-bit D/A channels which can be clocked by an internal clock source
(optionally locked to an external reference) or an externally supplied sample clock. In addition
there is one trigger input for customized sampling control. The FMC150 daughter card is
mechanically and electrically compliant to FMC standard (ANSI/VITA 57.1). The FMC150 has
a low-pin count connector, front panel I/O, and can be used in a conduction cooled
environment.
The design is based on TI's ADS62P49/ADS4249 dual channel 14-bit 250Msps ADC and TI's
DAC3283 dual channel 16-bit 800Msps DAC. The analog signal inputs are AC coupled
connecting to MMCX/SSMC coax connectors on the front panel.
The FMC150 allows flexible control on sampling frequency, analog input gain, and offset
correction through serial communication busses. Furthermore the card is equipped with power
supply and temperature monitoring and offers several power-down modes to switch off unused
functions.
Channel A
A/D
Channel B
External
Clock /
Reference
External
Trigger
Channel C
D/A
Channel D
January 2012
AC
Coupling
ADS62P49/
ADS4249
AC
250 Msps, 14-bit
Coupling
Clock tree
CDCE72010
AC
Coupling
DAC3283
800 Msps, 16-bit
AC
Coupling
Figure 1: FMC150 block diagram
FMC150 User Manual
www.4dsp.com
r1.6
LVDS Clock (1)
LVDS Data (14)
Control
Monitoring
AMC7823
LVDS Clock (1)
Control
LVDS Trigger (1)
LVDS Clock (1)
LVDS Data (8)
LVDS Frame (1)
Control
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