Edgetech 3200-XS - Acquisition Board; Carrier Board; Figure 2-1: Tiger Board Set: Carrier (Front View) - 0006013; Figure 2-2: Tiger Board Set: Carrier (Rear View) - 0006013

2.0 SPECIFICATIONS 2-4
The Tiger board was designed to support a combined sonar system (with both sub-bottom as well as multi-
frequency side-scan capability), or to be used single channel as a basic sub-bottom controller. At periodic
intervals, the board generates the transmit waveform(s), and it continuously buffers ADC data.
The Tiger board represents a new generation of re-engineered and optimized sonar electronics. It is
designed to address a broad spectrum of sonar applications from a common and well tested base of
components. Among the features of this generation are lower power consumption, higher speeds, smaller
form factors, and high analog sensitivity-to-minimum noise electronics for improved operating ranges.
The Tiger board is actually composed of a set of three boards as shown in F
IGURE 2-1: a Carrier board, an
Acquisition board, and a Sonar/IDE board. All three boards are connected electrically and mechanically as
a single assembly that interfaces to the MB via USB.
2.1.4.1 Carrier Board
This board has the same physical size as an industry standard full slot PCI card. There are two BNC
connectors, TRIGGER IN and TRIGGER OUT, and female connectors on either side for mating with the
other two boards in the board set. An onboard DC/DC converter provides +12 VDC to the preamplifier in
the tow vehicle.
2.1.4.2 Acquisition Board
The Acquisition board contains band pass filtering and up to eight 24-bit A/D converters, where only two
channels are used. The first channel is for the received acoustic data from the preamplifier, and the second
channel is used for power-up diagnostics.
2.1.4.3 Sonar Board
The sonar/IDE board is composed of two RAM memories, an acquisition memory and a CHIRP memory,
and six 10-bit D/A converters for generating transmit waveforms. The transmit ping rate and sampling
clock are generated from this board. The IDE portion of the board provides the interfacing circuitry
required to communicate between the Mother board and the Tiger board.
The Figures below show the individual boards within the Tiger board set:
F
IGURE 2-1: TIGER BOARD SET: CARRIER (FRONT VIEW) – 0006013
F
IGURE 2-2: TIGER BOARD SET: CARRIER (REAR VIEW) – 0006013
F
IGURE 2-3: TIGER BOARD SET: ACQUISITION PCB - 0014231
F
IGURE 2-4: TIGER BOARD SET: SIBU AKA SONAR INTERFACE BOARD - 0011637