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6.7 Frequency Response
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10 200k20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k
Amplitude-dBr
f-Frequency-Hz
10 200k20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k
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Amplitude-dBr
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DRV601EVM2 Performance
Measurement bandwidth filter is set to 500 kHz. Load is 600R.
Figure 18. Frequency Response (Analog Input)
Figure 19. Frequency Response (Digital Input)
The low-frequency cutoff of 10 Hz (–3 dB) is determined by the input ac-coupling capacitor, 1 µ F, together
with the feedback network input impedance of 15kR.
The low-pass, second-order filter implemented gives a –3 dB approximately at 35 kHz, and the response
is 13 dB down at 80 kHz.
DRV601EVM2 16 SLOU217 – March 2008
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