TC9404FNG Datasheet, PDF (5/15 Pages) Toshiba Semiconductor – Σ-Δ Modulation System DA Converter with Analog Filter

TC9404FNG
Figure 2b Example of Input Timing Chart
3. Digital Filter
The 8-times oversampling IIR digital filter eliminates the noise returned from outside the bandwidth
during standard and double speed operations.
Table 1 Basic Characteristics of Digital Filter
Standard operation
Double speed operation
Pass-Band Ripple Transient Bandwidth
±0.11dB
±0.11dB
20.0 k~24.1 kHz
20.0 k~24.1 kHz
Attenuation
−26dB or less
−26dB or less
The characteristics of the digital filter frequencies are shown below.
Figure 3 Digital Filter Frequency Characteristics (fs = 44.1 kHz)
5
2006-04-27