YOKOGAWA TA320, Руководство пользователя

Страница: 106 / 144

10-6
IM 704210-01E
Explanation Connecting a BNC cable
Connect a BNC cable to the reference input terminal (REFERENCE IN) and reference output
terminal (REFERENCE OUT) provided on the rear panel of the instrument.
IN OUT
REFERENCE
10MHz 1Vp-p 10MHz 1Vp-p
(Reference
input terminal) (Reference
output terminal)
Reference input circuit Reference output circuit
22k Ω
1.5k Ω 100pF
50 Ω 470pF
• nputting the external reference clock signal
Input the external reference clock signal to the reference input terminal (REFERENCE IN).
• Input frequency range: 10 MHz ± 10 Hz
• Input impedance: 1 k Ω min.
• Input coupling: AC
• Input voltage level: 1 V
p-p
min.
• Maximum input voltage: ± 10 V
CAUTION
Never apply a voltage exceeding the maximum input voltage to the reference input
terminal. Damage to the input terminals may result.
• Outputting the reference clock signal
The reference clock signal is output from the reference output terminal. The reference clock
selected, as described in “Selecting the reference clock” at the foot of this page, will be output all
the time.
• Output frequency: 10 MHz (Typical *)
• Output impedance: 50 Ω (Typical *)
• Output coupling: AC
• Output voltage level: 1 V
p-p
min. when the output is received by input impedance of 50
Ω
* Typical value is described in terms of typical of average performance. However, they cannot
be guaranteed.
CAUTION
Never short-circuit the reference output terminal or apply an external voltage to it.
Damage to the internal circuits may result.
Selecting the reference clock
Select the desired reference clock from the following.
• INTERNAL: Selects the internal reference clock signal.
• EXTERNAL: Selects the external reference clock signal.
10.2 Inputting and Outputting the Reference Signal