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Pico E-15 Hardware Reference
www.picocomputing.com
Pico Computing
(206) 283-2178
150 Nickerson Street. Suite 311
Seattle, WA 98109
21
High Speed Digital to Analog Converters
The Pico E-15 features 2 high speed analog to digital converters. The converters are optimized
for high-frequency, high-performance, low-power, low-noise operation. The converters have
integrated DC blocking capacitors, and can not be used on low frequency signals. The DAC
should be terminated into a 50 ohm load.
To ensure accuracy at high speeds, the low-jitter 125 MHz reference clock must be used. The
DAC supports a clock frequency of up to 210 MHz.
Electrical Specifications Minimum Nominal Maximum
Differential AC Output Voltage (50 Ohm Load) 0 Vpp 0.225 Vpp 0.45 Vpp
Differential AC Output Voltage (Hi-Z) 0 Vpp 1.8 Vpp 1.8 Vpp
Internal Termination Impedance 50
Output Frequency Range (50 Ohm Load) 5 KHz 105 MHz
Bandwidth
Noise Floor
Dielectric Withstand Voltage (Output to GND) -15V 0V 15V
Clock Frequency 125 MHz 210 MHz
Resolution 14 Bits
DAC Front-End Equivalent Circuit