Reference
Full Speed
Table 32. Full Speed measurements
USB Limits
User Configure Limits
References*
Measure-ments Max
Min
Max range
Min range
Cross-Over
Voltage
2.0 V
1.3 V
1.6-2.4 V
1.04-1.56 V Chapter 7, Table 7-7,
Section 7.1.2.1
Signal Rate
12.03 Mbps 11.97 Mbps 12.15 to 14.8
Mbps
9.48-11.85
Mbps
Chapter 7,7.1.13.1
Consecutive Jitter <2 ns
N/A
1.6-2.4 ns
N/A
Chapter 7, 7.1.13.1
Paired Jitter
<1 ns
N/A
.8-1.2 ns
N/A
Chapter 7, 7.1.13.1
Rise Time
20 ns
4 ns
16-24 ns
3.2-4.8 ns
Chapter 7, 7.1.2.1
Fall Time
20 ns
4 ns
16-24 ns
3.2-4.8 ns
Chapter 7, 7.1. 2.1
EOP Width
175 ns
160 ns
140-210 ns
128-192 ns Chapter 7, 7.1.13.2.1
References Section refers to the chapter numbers in the ‘Universal Serial Bus
Specifications Revision 2.0-2000’.
Note 1:
Results within the USB limits lead to a PASS. Results within the waiver
limits, but outside USB limits lead to a Conditional PASS. Results within the user
configured limits lead to a PASS result. If you select configured limits, you can
view only the result details.
Note 2:
Testing at Tier 6 leads to a PASS. Testing at Tier 5 and 4 leads to a
Conditional PASS that is a Pass within the waiver limits. Testing at Tier 1 to 3
leads to a FAIL.
Note 3:
The application uses the USB signal rate limits of Low Speed or Full
Speed devices that are not capable of High Speed. The same limits for Low Speed
or Full Speed that are High Speed capable to decide the result - PASS or FAIL.
TDSUSB2 Universal Serial Bus Measurement Package
167
Summary of Contents for TDSUSB2
Page 24: ...Getting Started 10 TDSUSB2 Universal Serial Bus Measurement Package...
Page 32: ...Installation 18 TDSUSB2 Universal Serial Bus Measurement Package...
Page 61: ...Operating Basics TDSUSB2 Universal Serial Bus Measurement Package 47...
Page 76: ...Taking Measurements 62 TDSUSB2 Universal Serial Bus Measurement Package...
Page 90: ...Tutorial 76 TDSUSB2 Universal Serial Bus Measurement Package...
Page 160: ...Application Examples 146 TDSUSB2 Universal Serial Bus Measurement Package...
Page 230: ...Measurement Algorithms 216 TDSUSB2 Universal Serial Bus Measurement Package...
Page 250: ...Glossary 236 TDSUSB2 Universal Serial Bus Measurement Package...