A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the BERKELEY NUCLEONICS CORPORATION 645 Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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For Sale New, List Price $1,425.00   BERKELEY NUCLEONICS CORPORATION 645   Description / Specification:   Spec Sheet 
BERKELEY NUCLEONICS CORPORATION 645 50 MHz Function/Arbitrary Waveform Generator

The BNC 645 50MHz Function/Arbitrary Waveform Generator delivers many advanced features and user modes. New DDS+ technology embraces advancements in the semiconductor industry and leverages state-of- the-art components for both standard and complex functions.
The Model 645 can generate variable-edge pulses at rates up to 10MHz. From the front panel or through remote communications, the user may vary the period, pulse width and amplitude. The pulse parameters may be stored in the unit or on your computer for later recall.
The BNC 645 offers 14-bit resolution and a 125 MSa/s sampling rate, giving users enough control of their waveforms for most applications. It will storage of up to 5 waveforms concurrently ( 4 waveforms (4 x 256K points) in nonvolatile memory and 1 waveform in volatile memory.

Standard Wave forms: Sine, Square, Ramp, Triangle, Pulse, Noise, DC .
Built-in arbitrary waveforms: Exponential Rise and Fall, Negative ramp, Sin (x)/x, Cardiac.
Modulation Types: AM, FM, PM, FSK, PWM, Sweep and Burst.

Waveform Characteristics.
Frequency: 1 µHz 50 MHz.
Amplitude: 0.1 dB (< 100 KHz).
Flatness: 0.15dB (<5MHz).
Total Harmonic Distortion: DC to 20 KHz, Output ≥ 0.5Vpp THD+N ≤0.06%.
Frequency: 1 µHz to 25 MHz .
Rise/ Fall time: < 10 ns .
Overshoot: < 2%.
Variable Duty Cycle: 20% to 80% (to 10MHz), 40% to 60% (to 25 MHz).
Asymmetry: 1% of period + 5 ns (@ 50% duty).
Ramp, Triangle
Frequency: 1 µHz to 200 KHz.
Linearity: < 0.1% of peak output.
Symmetry: 0.0% ~ 100.0%.
Bandwitdh: 20 MHz Typical.
Frequency: 1 µHz to 10MHz.
Length: 2 to 256 K.
Resolution: 14 bits (Including sign).
Sample Rate: 125 MSa/s.
Min Rise/ Fall: 30 ns typical.
Linearity: < 0.1% of peak output.
Settling Time: <250 ns to 0.5% of final value.

Common Characteristics.
Frequency Resolution: 1µHz.
Amplitude Range: 10mVpp to 10Vpp in 50Ω, 20mVpp to 20 20Vpp in Hi-Z.
Amplitude Accuracy (at 1KHz): ±1% of setting ±1mVpp.
DC Offset Range (Peak AC + DC): ±2% of offset setting, ±0.5% of amplitude setting.


Related Bench Equipment Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

Average Power
Average power means that the energy transfer rate is to be averaged over many periods of the lowest frequency involved. For a CW signal, the lowest frequency and highest frequency are the same, so average power and power are the same. For an amplitude modulated wave, the power must be averaged over many periods of the modulation component of the signal as well.

Dynamic range
Dynamic range the ratio of a specified maximum level of a parameter, such as power, current, voltage or frequency, to the minimum detectable value of that parameter.

Modulation is the process by which the characteristic of one wave (the carrier) is modified by another.

Repeatability is the variation in a number of repeated measured quantities when measurement conditions are changed and restored. The value corresponds to half the spread between the minimum and maximum value measured.

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