Signal generation for storage device testing, Wideband rf-signal generation – Atec Tektronix-AWG7000 Series User Manual

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Arbitrary Waveform Generator — AWG7102 • AWG7101 • AWG7052 • AWG7051

Figure 3: Hard disk read channel signal (5 Gb/s 2 points per cell); AWG7101 with 10 GS/s.

Signal Generation for Storage Device Testing

Increasing capacity requirements for storage devices leads to the
development of new and faster read-and-write strategies for magnetic as
well as optical storage devices. Multilevel coding of data for storage on
optical disks is also being considered as an efficient way to increase storage
capacity.
The AWG7000 Series, with its ability to generate an accurate reproduction
of the readandwrite signals, enables users to design, develop, and test the
latest storage devices. With sample rates up to 20 GS/s, and the generation
of up to 6 signals (2 analog plus 4 marker) with a clock timing resolution of
100 ps, the AWG7000 Series represents a new benchmark in the industry.
See Figure 3.

Wideband RF-signal Generation

In the RF world, technologies ranging from a wireless mouse to a satellite
image require test equipment that can provide enough sample rate and

Figure 4: UWB (MBOA) three band (480 Mb/s 1795 MAC bytes 96 symbol payload);

3.168 GHz-4.752 GHz; AWG7102; Interleave at 15.84 GS/s; 0.5 V

p-p

resolution to recreate even the most complex RF behavior. The latest digital
RF technologies often exceed the capabilities of current test equipment to
generate wide-bandwidth and fast-changing signals that are increasingly
seen in many wireless applications such as radar, UWB, and others.
The AWG7000 Series enables the direct generation of RF signals and
their output through the D/A converter for signals up to a carrier frequency
of 5 GHz and a bandwidth of 5.8 GHz. The direct generation of IF or
RF signals avoids I/Q degradations and lengthy adjustments associated
with traditional generation using I/Q modulators. The AWG7000 Series with
its maximum sample rate of 20 GS/s is the sole solution that allows a direct
RF signal generation for up to 5 GHz. See Figure 4.