FEDL2250DIGEST-01
OKI Semiconductor
ML2252/54-XXX, ML22Q54
FEATURES
Maximum playback time length (sec) (In 4-bit ADPCM2)
FSAM = 4.0 kHz FSAM = 6.4 kHz FSAM = 8.0 kHz FSAM = 16 kHz FSAM = 32 kHz
Type
ROM capacity
ML2252
ML2254
1 Mbit
4 Mbit
4 Mbit
64.5
261.1
261.1
40.3
163.2
163.2
32.2
130.5
130.5
16.1
65.2
65.2
8.0
32.6
32.6
ML22Q54
• Non-linear 8-bit PCM, 8-bit PCM, 16-bit PCM, 2-bit ADPCM2, and 4-bit ADPCM2 algorithms
• Serial input/parallel input selectable
• Phrase control table function i.e., user definable phrase control table function
• 2 channels mixing function
• Master clock frequency:
• Sampling frequency:
4.096 MHz
4.0 kHz, 5.3 kHz, 6.4 kHz, 8.0 kHz, 10.7 kHz, 12.8 kHz,
16.0 kHz, 21.3 kHz, 25.6 kHz, 32.0 kHz, 42.7 kHz, 48 kHz
256 phrases
• Maximum number of phrases:
• Sound volume adjustment function built in (2 sounds independently adjustable in 29 steps)
• External voice data can be input
• 1-bit D/A converter, and14-bit D/A converter built in
• Built-in low-pass filter:
• Package: 44-pin plastic QFP (QFP44-P-910-0.80-2K)
(ML2252-XXXGA/ML2254-XXXGA/ML22Q54GA-MC)
Digital filter
3/31
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