Teledyne LeCroy USB Protocol Suite User Manual (Voyager_Advisor T3_Mercury) - Manual (Page 277)

USB Protocol Suite User Manual 277
Recording Options ‐ Misc. USB 3.0 for Voyager Teledyne LeCroy Corporation
10.4.1 Very Slow Clock Usage (Voyager M3/M3i ONLY)
The Voyager M3/M3i USB 3.0 Verification platform supports slower than standard clock
rates for prototype and simulation testing. All Voyager 3.0 Pro systems include the option
to select ½ and ¼ clock rates. This Gigabit clock can operate at 2.5 GHz (5 Gbps), 1.25 GHz
(2.5 Gbps), and 625 MHz (1.25 Gbps) over standard USB cables. This “fractional clock”
mode is also supported over the SMA (coaxial) inputs on the front of Voyager platforms
that include the SMA option.
Two extra‐cost slow clock options can enable use of external clock sources to synchronize
the frequency of the Voyager system at slower clock rates:
 The upper‐end of this external clocking supports rates from 12.5 MHz (25 Mbps)
to as low at 350 kHz (700 Kbps). The Voyager slow clock kit USB‐AC01‐V01‐X
(see the table below) provides this capability and includes SMA‐to‐MMCX cables
for attaching the external clock source. The external clock source is generated by
the system ref‐clock on the DUT or by a dedicated clock generator.
 To achieve clock frequencies below 350 kHz requires minor customization of the
Voyager hardware platform. Teledyne LeCroy offers customization option USB‐
AC06‐V01‐X to remove capacitors on the SMA inputs only. This allows users to
configure input frequencies at rates lower than 800 Hz for both protocol traffic
generation and analysis.
 Very Slow Speed requires MMCX Connectors. The USB plug ports are not sup‐
ported.
The table below outlines Voyager options for slow clock.
Model Number Clock Frequency Included
USB‐TZP3‐V02‐X
Voyager M3i Voyager M3i Pro Analyzer ‐
Exerciser System 2.50 GHz (5.00
Gbps)
1.25 GHz (2.50
Gbps)
625 MHz (1.25
Gbps)
USB‐AC01‐V01‐X
Voyager M3i USB 3.0 Slow Clock kit 
(includes 4 MMCX‐to‐SMA adapter cables and
software license to support external clock
input for Voyager M3 USB 3.0 analyzer and
exerciser platform) 12.5 MHz to 350
kHz
USB‐AC06‐V01‐A
Voyager USB 3.0 Custom MMCX Slow Clock
(custom MMCX‐SMA port for ultra slow clock
operation) Below 350 kHz
USB‐FE03‐V01‐X
Voyager M3 USB 3.0 SMA probe kit
(includes eight (8) MMCX‐to‐SMA cables and
license key for SMA differential input tap) NA