msm9831 Oki Semiconductor, msm9831 Datasheet - Page 17

• Manufacturer Part Number: msm9831
• Description: Voice Synthesis Lsi With On-chip 384kbit Mask Rom
• Manufacturer: Oki Semiconductor

Low-Pass Filter
In this IC, all voice outputs are through the built-in low-pass filter (LPF). Figure 6 and Table 3 show the LPF
frequency characteristics and LPF cutoff frequency respectively.
The frequency characteristics and cutoff frequencies are directly proportional to sampling frequencies.
Only the voice output through LPF in this IC is enabled.
1 Semiconductor
Sampling Frequency (kHz)
Figure 6 LPF Frequency Characteristics (f
(f
10.6
12.8
16.0
4.0
5.3
6.4
8.0
SAM
Table 3 LPF Cutoff Frequency
)
Cutoff Frequency (kHz)
(f
1.2
1.6
2.0
2.5
3.2
4.0
5.0
CUT
SAM
)
=8 kHz)
MSM9831-xxx
FEDL9831-02
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