NF DF 1906 - Figure 3-4 SYNC out ······················································································

3.3 I/O Connector
DF1906
3-11
■ Synchronous Output (SYNC OUT)
Figure 3-4 SYNC OUT
Output Waveform : Square wave
Output Voltage : 0 V/+3.3 V (when open)
Output Impedance : 50 Ω, unbalanced
Load Impedance : 45 Ω or more
State when Output Is Off : High impedance when the output is off
Do not short-circuit the output and do not apply a signal from outside.
The DF
1906 may be damaged.
・ At Time of Continuous Oscillation
The relationship between FUNCTION OUT signal and SYNC OUT s ignal at the time of continuous
oscillation is as shown in the figure below.
Note: SYNC OUT signal has a jitter of approx. 150 ns p-p under the following conditions.
Sine wave and square wave at less than 1 kHz.
Ramp wave, ARB1 to ARB4.
Square wave with a duty ratio of other than 50%.
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CAUTION
FUNCTION
OUT
SYNC OUT
Output
Driver
50Ω
SYN C OUT
+3.3 V