Analog Anti-Aliasing Low Pass Filter; Analog To Digital Converter (Adc) And Fir - Seagate Spinpoint M8 Product Manual

5.2.3.4

Analog Anti-Aliasing Low Pass Filter

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The 7 order equal-ripple analog filter provides filtering of the analog signal from AGC before it's being
converted to digital signal with the ADC. Its main function is to avoid aliasing for the ADC circuit.
5.2.3.5

Analog to Digital Converter (ADC) and FIR

The output of the analog filter is quantified using a 6 bit FLASH ADC. The digitized data is then equalized by
the FIR to the NPV target response for Viterbi detection. The FIR filter consists of 10 independent
programmable taps.
Spinpoint M8 Product Manual REV 2.6
Figure 5-3: Read/Write 88C9410
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