A300 Power and Signal Converter

Overview

The A300 is a logic-level shifter and voltage converter. It provides two level-shifting channels: the first converting 5 V to 3.3 V, and the second converting 3.3 V to 5 V. Additionally, the A300 provides a regulated 3.3 V power output.

The A300 is commonly used when connecting the pulse-per-second (PPS) output of a GPS16X-HVS to a CR800-series, CR1000, or CR3000 datalogger. In 2014, Garmin changed the PPS output of the GPS16X-HVS from 5 V to 3 V. Units with a serial number 1A4189318 or greater have a PPS output of 0 to 3 V. For those units, an A300 is needed to connect the PPS output to a CR800-series, CR1000, or CR3000 datalogger. Those data loggers require the PPS line to have a voltage of 3.8 V or greater.

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Specifications

-NOTE- For a cable and terminal description, refer to the Installation section of the A300 manual.
Cable 30.48 cm (12 in.), 4 conductor, 22 AWG, Santoprene
Terminals 4 screw terminals, 12 to 24 AWG, 0.2 in. pitch
Mounting 2 mounting holes (1 in. on center), 1.9 mm (0.075 in.) diameter
Packaging Wide temperature polyamide over-mold
Temperature -40° to +70°C
Supply Voltage 9 to 16 Vdc (for 12 Vdc nominal systems)
Supply Current 100 μA (quiescent)
Power Output 3.3 Vdc, ±3%, up to 20 mA guaranteed
5 V Signal Input 0 to 6 Vdc, logic low ≤ 1.4 V, logic high ≥ 3.4 V
5 V Signal Output 5 Vdc, ±3%, 600 ohm output impedance
3 V Signal Input 0 to 6 Vdc, logic low ≤ 0.8 V, logic high ≥ 2 V
3 V Signal Output 3 Vdc ±3%, 600 ohm output impedance
Maximum Voltage Translation Rate 210 Mbps
Dimensions 78 x 46 x 9.3 mm (3.08 x 1.8 x 0.36 in.)

Compatibility

The A300 is used when connecting the pulse-per-second (PPS) output of a GPS16X-HVS or GPS16X-HVS-PW to a CR800-series, CR1000, or CR3000 datalogger. It is not needed with a CR6 or CR300 datalogger.


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