53220A Agilent Technologies Test Equipment, 53220A Datasheet - Page 16

• Manufacturer Part Number: 53220A
• Description: Universal Frequency Counter/Timer, 350 MHz, 12 digit/sec, 100 ps
• Manufacturer: Agilent Technologies Test Equipment
• Type: Counter/Timer350 MHz Universal Frequency Counter/Timer, 12 digit/sec, 100 psr

Specifications of 53220A

• Frequency Range: DC coupled 1 mHz to 350 MHz; AC coupled 10 Hz to 350 MHz
• Input Impedance: Selectable 1 MΩ ±1.5% or 50Ω ±1.5%
• Input Type: Front panel BNC
• Input, Range: ±5 V (± 50 V) full scale ranges
• Noise: 500 μVrms (max), 350 μVrms (typ)
• Number Of Channels: 3 channels
• Sensitivity: DC - 100 MHz: 20 mVpk > 100 MHz: 40 mVpk

Definition of Measurement Error Sources and Terms used in Calculations
Accuracy Specifications
1. Apply the appropriate errors detailed for each measuring function.
2. Use Timebase Uncertainty in Basic Accuracy calculations only for Measurement Functions that show the ● symbol in the Timebase
3. Assumes Gaussian noise distribution and non-synchronous gate, non-gaussian noise will effect Systematic Error. Note all optional
4. Typical is achieved with an average of 100 readings with 100 samples per trigger. Worst case is trigger and sample count set to 1.
5. Improved frequency ratio, duty and phase specifications are possible by making independent measurements.
6. Minimum Pulse Width for using stated Taccuracy is 5 ns; Pulse Widths of 2-5 ns use Taccuracy=400 ns.
7. Residual instrument Rise/ Fall Time 10%-90% 2.0 ns (typ). Applies to fixed level triggering.
8. Input signal slew rates and settling time have effects on offset. Offset is calibrated with rise times < 100 ps.
9. Constant Duty or Phase are required during the measurement interval. Duty and Phase are calculated based on two automated
10. Duty is represented as a ratio (not as a percent).
11. Additional count errors need to be added for gated totalize error, latency or jitter. If gated, add gate accuracy term (See Totalize
12. Volts pk error apply for signal levels between full range and 1/10th range. Spec applies to sine wave only.
13. Use the R
14. Applies when Burst Width * Carrier Freq > 80.
15. Specifications based on gate and width for automated detection. If in manual mode, delay and width selected will impact accuracy
16. The following minimum pulse width requirements apply:
Single-Period: <250 MHz, 50% Duty
Phase, Dual Channel Time Interval: <160 MHz, 50% Duty
Specifications apply if measurement channels are in 5 V range, DC
coupled, 50 ohm terminated and at fixed level.
Confidence Level (k)
For 99% Confidence use k= 2.5 in accuracy calculations.
For 95% Confidence use k= 2.0 in accuracy calculations.
R
T
Skew
T
Uncertainty column.
microwave channel specifications (continuous wave and pulse/burst) assume sine signal.
sequential measurements - period and width or TI A to B, respectively.
SS
accuracy
E
measurements in the the Measurement Characteristics section).
50 v range reading accuracy is 2% at DC-1 KHz, 5% 1 KHz -1 MHz band. Accuracy above 200 MHz is not specified on both ranges.
specification. For approximate accuracy for manual gate. Use the Re calculation, but Fin is now 10
E
calculation, but FIN in equation is now Burst Rate. Assume sharp envelope transition.
2 ns
2 ns
4 ns
4 ns
continued
53210A
100 ps
1
Negative width, Negative duty,
Single Channel Time Interval Fall to Rise
Positive width, Positive duty,
Single Channel Time Interval Rise to Fall
16
use R
53220A
100 ps
100 ps
200 ps
E
equation
6
and use gate as burst width.
use R
53230A
100 ps
20 ps
50 ps
E
equation