MRI_16TX_ 32RX_channels

CONSOLE HARDWARE
Tx 1 (4-channel)
Tx 2 (4-channel)
Tx 3 (4-channel)
Tx 4 (4-channel)
16 I/O
digital
Ethernet
100 Mb/s
4 DAC
output
Central
microcontroller
Rx_1 (4-channel)
Rx_2 (4-channel)
Rx_3 (4-channel)
Rx_4 (4-channel)
Rx_5 (4-channel)
Rx_6 (4-channel)
Rx_7 (4-channel)
Rx_8 (4-channel)
Fast
Serial
PC
HOST
SPI
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Up to 16 transmitter channels.
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Up to 32 receiver channels (I/Q)
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with direct PC connections.
4 x 16-bit, differential +/10V DAC outputs.
100 Mb/s Ethernet.
16 software configurable digital I/O.
Fast Serial port connections.
RADIOFREQUENCY TRANSMITTER
1024 x 32bit
RAM
LPass Filter +
Analog RFsw
1 GSPS, 14-Bit DDS
1024 x 32bit
RAM
LPass Filter +
Analog RFsw
1 GSPS, 14-Bit DDS
1024 x 32bit
RAM
LPass Filter +
Analog RFsw
1 GSPS, 14-Bit DDS
1024 x 32bit
RAM
RF local
4 TTL switch signal
Clock_In (to sync)
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Serial SPI uC port
1 GSPS, 14-Bit DDS
16 bit Parallel uC port
LPass Filter +
Analog RFsw
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4 indipendent radiofrequency
channels.
14 bit amplitude, 1GSPS Direct
Digital Synthesizer (DDS).
Up to 400MHz radiofrequency
output.
2 working modalities:
• Internal RAM.
• Controlled by uC.
0.23Hz or better frequency
resolution (32-bit register).
50 ohm output impedance .
0 dBm, RF local output.
4 TTL switch outputs to drive external switch or amplifier.
Optional clock input to syncronize radiofrequency from external circuit.
Radiofrequencies output high isolation >50dB (switched controlled) .
RECEIVER
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Preamp.
Preamp.
AntiAliasing
Filter
AntiAliasing
Filter
Dual
40MHz
14-bit
ADC
4-channel
DDC
(Digital
Down
Converter )
Receiver
Microcontroller
Dual
40MHz
14-bit
ADC
Sync signals
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Direct PC
connection
Preamp.
AntiAliasing
Filter
8 x 16 bit
interleaved I/Q
data.
Serial SPI uC port
AntiAliasing
Filter
Preamp.
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4 x 50 ohm inpedance
differential / single ended
inputs.
20MHz acquisition
bandwidth.
4 synchronous and
indipendent processing
channels.
Multi connection PC
interfaces:
• USB.
• UART, up to 12.5
Mbps RS422.
42dB gain controlled preamplifier (1.5 to 43.5dB or 7.5dB to 55.5dB).
16 bit phase and quadrature (I/Q) data for each channel.
DDC frequency down converter and fully programmable decimation filter.
4 separate DDC internal complex NCO with 0.01Hz frequency resolution.
Noise rejection with Internal power supply decoupling.