FEDL2215-01
Semiconductor
ML2215
1
5. External Clock Input
Mask option allows a user to choose an external clock frequency, as shown in Table 5.1.
Table 5.1 External Clock Frequency and Sampling Frequency
External Clock Frequency
4.096 MHz
Internal Sampling Frequency
4.0 kHz, 5.3 kHz, 6.4 kHz, 8.0 kHz, 10.7 kHz, 12.8 kHz, 16.0 kHz
4.0 kHz, 5.3 kHz, 6.4 kHz, 8.0 kHz, 10.7 kHz, 12.8 kHz, 16.0 kHz
4.0 kHz, 5.3 kHz, 6.4 kHz, 8.0 kHz, 10.7 kHz, 12.8 kHz, 16.0 kHz
8.192 MHz
16.384 MHz
When an external clock frequency were chosen as Mask option and a different frequency input were made, the
sampling frequency changes in proportion to the actual input frequency. For example, while 4.096 MHz external
clock frequency option was selected as Mask option, and when 6.144 MHz external clock is actually input, then
the sampling frequency changes accordingly, e.g. sampling frequency at 1.5 times of those shown in Table 5.1.
6. Stop Code
The Stop code input (Table 1.1) to the SD pin during playback let the LSI stop playback on the SI’s falling edge
following to the LSB input, and the AOUT fall down to 1/2 VDD level. If the LSI playbacks a music phrase, music
stops as well.
Timings for the Stop code input are shown below, for 2-pin interfacing in Figure 6.1 and for 3-pin interfacing in
Figure 6.2 respectively.
SD
SI
BUSY
STOP
Figure 6.1 Timing for Stop Code Input - 2-pin Interfacing
ST
SD
SI
BUSY
STOP
Figure 6.2 Timing for Stop Code Input - 3-pin Interfacing
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