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Appendix A
Table A-2:
Block Diagram Legend
XDCR
T/R-SWITCH
BPF
PA
BUFF
XFMR
XDCR-CTL
PWR-FLT
PWR-REG
REFERENCE
T-EN
T-SENSE
S-AMP
MUX-CTL
XMT
SDIN
SDOUT
VXDR
RCV-SIG
TEMP
VAA1
ADREF
page A-10
Transducer Block Diagram Legend
Description:
Transducer element, or beam
Transmit/Receive Switch
Bandpass filter
Pre-Amplifier
Buffer amplifier
Transformer
Transducer controller
Transducer power supply input filter
Transducer power supply regulator
Reference
Temperature interface power strobe
Temperature sensor
Temperature scaling amplifier
Multiplexer control
Transmit signal
Transducer serial data input from Electronics Unit
Transducer serial data output to the Electronics Unit
Transducer supply input voltage
Transducer output signal
Scaled temperature sensor signal
Regulated transducer supply voltage
Analog/Digital converter reference
MGD Technologies, Inc.
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