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Introduction
UDB100x series is signal generator of directing digital synthesis technology (DDS), making FPGA design, convenient to use, high stable signal, in the meantime, it has many functions, for example, TTL output and measured frequency etc, the output signal is able to modulate the amplitude and DC offset, suitable for laboratories, engineering technical personnel and enthusiast

Main technical data
Signal output
Output sine wave: sinusoidal wave, square wave (adjustable the room), triangle wave, saw tooth wave
Output amplitude:  ≥ 9Vp-p (no-load)
Output impedance: 50Ω ± 10%
DC biasing: ± 2.5V
Display: LCD1602

Frequency range: 0.01Hz ~ 2MHz (UDB1002), 0.01Hz-3MHz (UDB1003), 0.01Hz-5MHz (UDB1005)
Frequency resolution: 0.01Hz (10mHz)
Frequency stability: ± 1 × 10 - 6
Frequency accuracy: ± 5 × 10-6
Sine wave distortion degree ≤ 0.8% (reference frequency 1kHz)
Triangle wave linear degree ≥ 98% (0.01Hz~10kHz)
Square wave of the rise and fall time ≤ 100ns
Square wave duty ratio range:1%~99%

TTL output
Frequency range: 0.01Hz ~ 2MHz (UDB1002), 0.01Hz-3MHz (UDB1003), 0.01Hz-5MHz (UDB1005)
Amplitude >3Vp-p
Fan-out >20 TTL load
COUNTER function
Count range: 0-4294967295
Measuring frequency range: 1Hz~60MHz
Input range: 0.5Vp-p~20Vp-p

SWEEP scan function (only UDB100xS Series)
Sweep frequency range: fM1 to fM2
Input range: 0.5Vp-p~20Vp-p
Other function
Stored and transferred: M0-M9 (M0: default adjust input)