Read-Write Analyzer 2002 – Discontinued

  • 2Gbit/sec Maximum Data Rate
  • 1GHz Analog Bandwidth for All Parametric Measurements
  • Pattern Generator with 1psec Resolution of Bit Precompensation*
  • PRML Chip Integration to 2Gbit/sec
  • Servo Writing and Processing


* Patent pending.

RWA 2002 Performance Specifications**:

Pattern Generator

Minimum bit cell: 500psec

Absolute position accuracy for any transition: 5psec (typ) 10psec (max)

Precompensation resolution for any transition: 1psec

Jitter at 2Gbit/sec

  • Repetitive Pattern: 2psec RMS (typcal).
  • Pattern Dependent Jitter, 5psec peak-to-peak (typical).
  • Frequency resolution: better then 1Hz
  • Frequency stability: ±2.5ppm up to 75°C, ±1ppm/year
  • Random pattern maximum length: up to 2Mbit

PRML Chip Integration

  • Data Rate: up to 2Gbit/sec (limited by available commercial PRML chips).
  • PRML chips: Cirrus Logic, Data Path, GEC Plessey, IBM, Lucent
    Technology, Marvell, NEC, SSI, and new PRML chips integrated on request.
  • Channel Optimization
  • Wide range of PRML Tests

Analog Channel

Bandwidth: more than 1GHz at – 3dB

Flatness: ± 0.2dB up to 1GHz

Group delay: ±100psec up to 1GHz

Non-linear distortion: better than 1%
(entire bandwidth, nominal level)

Minimum pulse width (PW)
to be measured: 330psec

Parametric measurement accuracy
(entire bandwidth):

  • TAA: ±0.5dB***
  • Pulse width: 3% or 20psec (whichever is greater)***
  • SNR: ±0.5dB
  • Modulation: ± 2%***
  • Crest factor: ± 2%
  • Overwrite: ± 0.2dB

Physical Specifications

  • Size: 22.1″ x 17.6″ x 10.8″
  • Weight: 46 lbs
  • Power: 100-240 VAC (± 10%, 50/60 Hz, 3A)


** Specifications are subject to change without notice.

*** Measurement conditions: sinewave signal without noise.



RWA 2002 Options:

Option Performance
Spectrum Analyzer Frequency domain tests to 960MHz
UP8 Preamplifier 2Gbit/sec write data speed
1.8GHz analog bandwidth
MR5 Read/Write Amplifier 2Gbit/sec write data speed
1.3GHz analog bandwidth
Programmable Octave Filters 1-2GHz, 0.5-1GHz, 0.25-0.5GHz,
and 0.125-0.25GHz
Guzik Servo for Guzik Spinstands Servo writing up to 1,024 sectors
50 kHz servo sampling rate
Guzik Servo for Non-Guzik Spinstands Servo writing up to 1,024 sectors
50 kHz sampling rate
Digital servo position output