Tektronix 2247A

ty
4
4Y
Performance Characteristics
Table 6-1 (cont)
Electrical Characteristics
CHARACTERISTICS
PERFORMANCE REQUIREMENTS
Nod = Number of prop delay intervals averaged in one measurement
_ (A sweep repetition rate) X (GATETIME +0.010 s)
- Number of sweeps in one display sequence
GATETIME = 0.603 sec In AUTO RESOLution mode. When a
resolution magnifier is used, the gate time increases as
needed to obtain the extra resolution.
Number of sweeps is found by counting number of channels
displayed; If both START and STOP trigger are on one
channel, this channel gets counted twice.
Ne = Number of transition time intervals (rise or fall) averaged In
one measurement
_ (A sweep repetition rate) X (GATETIME +0.010 s)
Number of sweeps in one display sequence
GATETIME = 0.603 sec In AUTO RESOLution mode. When a
resolution magnifier is used, the gate time Increases as
needed to obtain the extra resolution.
Number of sweeps Is found by counting number of channels
displayed; the channel being measured gets counted twice.
N, = Number of F, periods averaged.
No = Number of Fz periods averaged.
P = Period of input, in seconds.
R = Ratio, F,/Fp.
T = Time interval being measured.
TBE = _ Total timebase error.
TJE = Trigger jitter error at trigger point.
TJE, = Trigger jitter error associated with F;.
TJE2 = Trigger jitter error associated with Fo.
TJEa
=
Trigger
jitter
error
of
A
trigger
period
measurement.
TLE = _ B trigger level readout error, in divisions (see A and B
TRIGGER).
Ww = Width of input, in seconds.
2247A
Operators
6-23