1-11
General Information
Vertical System: Analog Channels (continued)
Vertical System: Analog Channels (continued)
ESD Tolerance
±2 kV
Noise Peak-to-Peak
3% full scale or 3 mV, whichever is greater
Common Mode Rejection Ratio
20 dB @ 50 MHz
DC Vertical Gain Accuracy*
1
±2.0% full scale
DC Vertical Offset Accuracy
≤
200 mV/div: ±0.1 div ±2.0 mV ±0.5% offset
>
200 mV/div: ±0.1 div ±2.0 mV ±1.5% offset value
Single Cursor Accuracy
1
±{DC Vertical Gain Ac DC Vertical Offset
Ac 0.2% full scale (~1/2 LSB) }
Example:
For 50 mV signal, scope set to 10 mV/div (80 mV full scale), 5 mV offset,
accuracy = ±{2.0%(80mV) + 0.1 (10 mV) + 2.0 mV + 0.5% (5 mV) + 0.2%(80 mV)} = ±4.78 mV
Dual Cursor Accuracy*
1
±{DC Vertical Gain Ac 0.4% full scale (~1 LSB)}
Example: For 50 mV signal, scope set to 10 mV/div (80 mV full scale), 5 mV offset,
accuracy = ±{2.0%(80 mV) + 0.4%(80 mV)} = ±1.92 mV
1
2 mV/div is a magnification of 4 mV/div setting. For vertical accuracy calculations, use full scale of 32 mV for 2 mV/div sensitivity setting
.
Vertical System: Digital Channels (54641D and 54642D only)
Number of Channels
16 Digital – labeled D15 – D0
Threshold Groupings
Pod 1: D7 – D0
Pod 2: D15 – D8
Threshold Selections
TTL, CMOS, ECL, user-definable (selectable by pod)
User-Defined Threshold Range
±8.0 V in 10 mV increments
Maximum Input
Voltage
±40 V peak CAT I
Threshold Accuracy*
±(100 mV + 3% of threshold setting)
Input Dynamic Range
±10 V about threshold
Minimum Input Voltage Swing
500 mV peak-to-peak
Input Capacitance
~ 8 pF
Input Resistance
100 k
Ω
±2% at probe tip
Channel-to-Channel Skew
2 ns typical, 3 ns maximum
* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and
±10 °C from firmware calibration temperature.
Summary of Contents for 54641A
Page 4: ...iv service book Page iv Wednesday August 28 2002 3 25 PM ...
Page 7: ...1 General Information ...
Page 24: ...1 18 ...
Page 25: ...2 Preparing the Oscilloscope for Use service book Page 1 Wednesday August 28 2002 3 25 PM ...
Page 45: ...3 Testing Performance service book Page 1 Wednesday August 28 2002 3 25 PM ...
Page 66: ...3 22 service book Page 22 Wednesday August 28 2002 3 25 PM ...
Page 67: ...4 Calibrating and Adjusting service book Page 1 Wednesday August 28 2002 3 25 PM ...
Page 76: ...4 10 service book Page 10 Wednesday August 28 2002 3 25 PM ...
Page 77: ...5 Troubleshooting service book Page 1 Wednesday August 28 2002 3 25 PM ...
Page 90: ...5 14 service book Page 14 Wednesday August 28 2002 3 25 PM ...
Page 91: ...6 Replacing Assemblies service book Page 1 Wednesday August 28 2002 3 25 PM ...
Page 107: ...7 Replaceable Parts service book Page 1 Wednesday August 28 2002 3 25 PM ...
Page 114: ...7 8 service book Page 8 Wednesday August 28 2002 3 25 PM ...
