Philips PM 5330 Handbuch Seite 62

4-2
CHARACTERISTICS
PM 5330
Internal Reference, Standard
frequency
10 MHz
drift
±3 ppm
aging rate
±1 ppm /year
warm-up time
30 minutes
High Stability Reference, Option
frequency
10 MHz
drift
aging rate
warm-up time
temp. range +5 °C...+40 °C
frequency offset within ±3 ppm of
final value
5 x 10-8
temp. range +5 °C...+40 °C,
after 30 days warm-up time
±1.5 x 10-~ /year
3 x 10-8 /month
± 1 x 10-9 /day
after 30 days warm-up time
30 minutes
frequency offset within 5 x
10_8 of
final value
External Reference Frequency
input BNC socket
REF INPUT
input frequency
10 MHz/N N = 1 , 2, 3...10
tolerance
±2 ppm
for proper synchronisation
input level, rms 75 mV - 1.4 V sine or square wave
input impedance 50 S2
switching automatically
indication on display if signal is
applied to REF IN
lock-in time <2 s
max. ext. voltage
±4 V
DC + AC (zero-to -peak)