Benthowave Instrument Inc.

BENTHOWAVE INSTRUMENT INC. Acoustic Transducer & System 

Power Amplifier for Sonar Transducer / Projector

Linear Power Amplifier for Sonar TransducerBII-5060 Series 100kHz Power Bandwidth, 360W

Suggested Application

  • Sub-bottom Investigation, Echo Sounding
  • Navigation, Obstacle Avoidance, Inspection and Survey
  • Underwater Wireless Communication / Modem
  • FSK, PSK and Spread Spectrum System
  • Phantom Echo Generation
  • Acoustic Deterrent Devices
  • Phantom Generation of Clicks, Whistles and Pulse Trains
  • Audiogram Studies / Audiometry Psychoacoustic and AEP/ABR Experiments on Aquatic Mammals
  • Bioacoustic and Biological Research on Whales and Dolphins
Source Level Capability: 195 +DI (dB re µPa)
Bandwidth: 100 kHz; 32.5 dB Gain
Small Size Fitting in ΦD1½" (38.1mm) Cylinder Housing
Linear and Switching Mode
Single DC Power Supply, Stand-by Low Power Mode
Manual and Computer Digital Output Control
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BII-4000 Signal Generation
Underwater Transducer SONAR, HIFU...
BII-2100 Transmitting & Receiving Switch


Power Amplifier BII-5061 BII-5062
Application: Pulse/Burst SINE, Chirp/FM, Arbitrary Waveform
Pulse and Square Waveform
Spread Spectrum, FSK and PSK Signals
Marine Animal Sound
Whale and Dolphin's Clicks, Whistles and Pulse Trains
Pulsed Sonar Signal ONLY, Duty Cycle ≤ 10%
Shut-down Control: On-board ON/OFF Switch: Manually or Digitally. Digital Output
Size: Round PCB
ΦDxH=101.6x50.8 mm
Rectangular PCB
Mounting:  4xΦD4.87mm through-holes 4xΦD3.2mm through-holes
Weight in Air:  280 grams  160 grams 
Cable:  6" wires 60mm wires
Connector:  Wire Leads No
Miscellaneous: BII-5060 Series Power Amplifier
Gain: 32.5dB or x42
Power Bandwidth (-3 dB): 20Hz to 100kHz
Maximum Input Level:
(Linear Mode)
2 Vpp or (2*Supply Voltage -8Vpp)/42, whichever is less;
Input Level:
(Switching Mode)
Pulse and Square Waveform: TTL/CMOS Level or 5Vpp
Input Impedance: 100 KΩ || 7pF
Supply Voltage: +8 to +48 VDC
Suggested DC Supply: Marine Battery, Automobile Battery, Fixed DC Linear Power Supply, Not Included.
DO NOT use variable power supply whose maximum supply voltage is higher than the above rated voltage.
DO NOT use switching mode DC power supply.
Quiescent Current: Active: 59 mA; Shutdown: 24 mA
Shutdown Control Voltage: TTL/CMOS Compatible. Logic Low "0": ≤ 0.8V; Logic High "1": 2.4V to Supply Voltage Level.
Logic High: Output enabled; Logic Low: Output Disabled.
RMS Power:
(Linear Mode)
200 W @ +48 VDC; 138 W @ +36 VDC; 78.2 W @ +24 VDC; 19 W @ +12 VDC
Forced-air cooling by a fan is a must to cool down the amplifier during service of full power and continuous waveform.
RMS Power:
(Switching Mode)
360 W @ +48 VDC; 270 W @ +36 VDC; 176 W @ +24 VDC; 80 W @ +12 VDC
Forced-air cooling by a fan is a must to cool down the amplifier during service of full power and continuous waveform.
Max. Output Current: 10 A
Operating Temperature: -40°C to 85 °C
Storage Temperature: -50°C to 105 °C
Technical Documents: Download BII-5060 Data Sheet.

PCB Size and Mounting Information

Power Amplifier for Sonar TransducerPower Amplifier for Sonar Transducer 

BII-5062 Wiring

Linear Power Amplifier

  Signal Wires' Colour
IN+ Input Signal White
IN- Input Signal common Blue
COM Power Supply Common Black
+Vs Power Supply Positive Voltage Red
OUT- Negative Output Yellow
OUT+ Positive Output Blue
OUT COM Output Common Default: PCB Via Pad, BII does not solder wire.
ST-BY Shut Down Control Default: PCB Via Pad, BII does not solder wire.
ST-BY COM Shut Down Control Common Default: PCB Via Pad, BII does not solder wire.
SD Shut-down pin Default: PCB Via Pad, BII does not solder wire.
SW Shut-down pin Default: SW is wired to OFF
OFF Shut-down OFF pin Default: OFF is wired to SW
Default Factory-set: SW is wired to OFF, shut-down function is not available.
To use shut-down function:
1. Cut off the wire between SW and OFF, solder a wire from SW to SD.
2. Solder wires to ST-BY and ST-BY COM respectively.

BII-5060 Series: Typical SPL (Sound Pressure Level) vs Frequency

Frequency (kHz)  SPL (dB µPa*m) DUT (Device under Test)
3.5 to 300 190.7 to 192.2 Omnidirectional Transducer
3.5 191.7 to 193.2 6" Planar Transducer
12 202.4 to 203.9 6" Planar Transducer
24 208.4 to 209.9 6" Planar Transducer
38 210.7 to 212.2 5" Planar Transducer
50 213.1 to 214.6 5" Planar Transducer
70 214.2 to 215.7 4" Planar Transducer
100 215.9 to 217.4 4" Planar Transducer
200 216.4 to 217.9 3" Planar Transducer

BII-5060 Series Frequency Response
Linear Power Amplifier

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