Walfront UDB1002, UDB1002S, UDB1003, UDB1005, UDB1003S User Manual

UDB100x(S) seriers

Direct Digital Synthesis (DDS)

Signal Generator

Users Manual

Rev2.1

2011-3-10

Introduction of the instrument

UDB100x(UDB100xS) series direct digital synthesis signal generator use DDS technology
and FPGA design with the characters of high stability and low distortion ect., with the function of
TTL output and 60MHz frequency meter, UDB100xS series have sweep function, the start and end
frequency and sweep time can be set at will. It’s the ideal equipment of electronic engineer, laboratory,
production lines, the teaching and scientific research.

Main technology data

●

Signal Output function

Output waveforms Sine wave, Square wave and Triangle wave
Output amplitude ≥9Vp-p (signal output, no load)（MAX）

About 0.1Vp-p (MIN)
Output impedance 50Ω±10%(signal output)
DC offset ±2.5V(no load)
Display LCD1602

Frequency range 0.01Hz ~ 2MHz(UDB1002)

0.01Hz ~ 3MHz(UDB1003)

0.01Hz ~ 5MHz(UDB1005)

Resolution 0.01Hz(10mHz)

Frequency Stability ±1×10

－6

Frequency accuracy ±5×10

－6

Sine wave distortion ≤0.8% (reference frequency is 1kHz)
Trinagle linearity ≥98% (0.01Hz~10kHz)

Rise and fall time of square wave ≤100ns
Square Wave Duty range 1%~99%(digital control mode)

●

TTL Output function

Frequency range 0.01Hz ~ 2MHz(UDB1002 or UDB1002S)

0.01Hz ~ 3MHz(UDB1003 or UDB1003S)

0.01Hz ~ 5MHz(UDB1005 or UDB1005S)
Amplitude >3Vp-p
Fan Out >20 TTL loads

●

COUNTER function

Counter Range 0-4294967295
Frequency Meter Range 1Hz~60MHz
Input Voltage Range 0.5Vp-p~20Vp-p

●

SWEEP function (as for UDB100xS series)

Frequency range fM1 to fM2
Sweep time 1s~99s

●

Others function

Save and Load Parameter M0-M9(M0: default load)

The function introduction of front panel