7

Chapter 7 HP 53131A/132A Specifications

Measurement Specifications (Continued)

Measurement Specifications (Continued)

Pulse Width

Measurement is specified over the full signal range of Channel 1. The width of the opposing pulse must be greater than 4 ns (e.g., when measuring the positive pulse width, the negative pulse width must be greater than 4 ns).

Pulse Selection:

Positive or Negative

 

Trigger:

Default setting is Auto Trigger8 at 50%

Results Range:

5 ns to 105 s

 

LSD:

53131A

53132A

-------------------------------------------------------------------------------------------

 

500 ps

150 ps

 

 

 

RMS Resolution:

 

tre2 s + Start Trigger Error2 + Stop Trigger Error2

tres

53131A

53132A

-------------------------------------------------------------------------------------------

750 ps

300 ps

Systematic Uncertainty:

±(Time Base Error × Pulse Width) ± Trigger Level Timing Error ±1.5 ns Differential Channel Error (HP 53131A)

±900 ps Differential Channel Error (HP 53132A)

Rise/Fall Time

Measurement is specified over the full signal ranges of Channel 1. The interval between the end of one edge and start of a similar edge must be greater than 4 ns. (e.g., when measuring a rising edge, 4 ns must elapse between the 90% point of one rising edge and the 10% point of the next rising edge).

Edge Selection:

Positive or Negative

 

Trigger:

Default setting is Auto Trigger8 at 10% and 90%

Results Range:

5 ns to 105 s

 

LSD:

53131A

53132A

-------------------------------------------------------------------------------------------

 

500 ps

150 ps

 

 

 

RMS Resolution:

 

tre2 s + Start Trigger Error2 + Stop Trigger Error2

tres

53131A

53132A

-------------------------------------------------------------------------------------------

750 ps

300 ps

Systematic Uncertainty:

±(Time Base Error × Transition Time) ± Trigger Level Timing Error ±1.5 ns Differential Channel Error (HP 53131A)

±900 ps Differential Channel Error (HP 53132A)

Phase

Measurement is specified over the full signal range of Channels 1 and 2.

Results Range:

–180° to +360°

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

2

 

⎛

⎛ Phase⎞

2⎞

RMS Resolution:

 

(tres + (2 × Trigger Error

 

)) ×

⎝1 +

⎝---360----------°---⎠

⎠ × Frequency × 360°

tres

53131A

 

53132A

 

 

 

-------------------------------------------------------------------------------------------

 

 

 

750 ps

 

300 ps

 

 

 

Systematic Uncertainty:

(± Trigger Level Timing Error ± 1.5 ns Differential Channel Error) × Frequency (HP 53131A)

 

(± Trigger Level Timing Error ± 900 ps Differential Channel Error) × Frequency (HP 53132A)

8Restrictions noted on page 7-2for Auto Trigger apply to the proper operation of these measurements. The Peak Volts measurement is used to determine the signal amplitude and inaccuracies from this, noted on page 7-11,should be included in calculating the Trigger Level Timing Error.

7-10

Assembly-Level Service Guide