GW Instek AFG-2225 User Manual - Manual (Page 112)

AFG-2225 Series User Manual
112
Range Center frequency 1μHz~25MHz (sine wave)
1μHz~1MHz (Ramp wave)
1μHz~15MHz (square wave)
Span frequency DC~25MHz
(sine wave)
DC ~1MHz (Ramp wave)
1μHz~15MHz (square wave)
Default center 550Hz
Default span 900Hz
Note To sweep from low to high frequencies, set a
positive span.
To sweep from high to low frequencies, set a
negative span.
When marker is off, the SYNC signal is a square
wave with a duty cycle of 50%. At the start of the
sweep, the SYNC signal is at a TTL low level that
rises to a TTL high level at the frequency midpoint.
The frequency of the SYNC signal is equal to the
sweep time.
When marker is on, at the start of the sweep, the
SYNC signal is at a TTL high level that drops to a
TTL low level at the marker. The SYNC signal is
output from the mark output terminal.