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SNC11D Datasheet(PDF) 3 Page - SONiX Technology Company |
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SNC11D Datasheet(HTML) 3 Page - SONiX Technology Company |
3 / 12 page SNC11D One Channel Direct Drive Speech Controller 5 FUNCTION DESCRIPTIONS 5.1. Oscillator SNC11D accepts RC type oscillator for system clock. The typical circuit diagram for oscillator is listed as follows. OSC VCC RC Oscillator 5.2. ROM SNC11D contains substantial 384K word (10-bit) internal ROM. Program, voices and other data are shared with this same 384K word ROM. 5.3. RAM SNC11D contains 64 nibble RAM. The 64 nibble RAM is divided into four pages (page 0 to page 3, 16 nibble RAM on each page). In our programming structure, users can easily define and locate RAM page in the program. For instance, users can use the instructions, PAGEn (n=0 to 3) to switch and indicate the RAM page. Besides, users can use direct mode, M0 ~ M15 in the data transfer type instructions, to access all 16 nibbles of each page. 5.4. Power Down Mode “End” instruction will power down SNC11D and enable IC to consume fewer current for power saving. (<3uA @VDD=3V and <5uA @VDD=5V) Please be aware that when the power down mode is activated in SNC11D, any valid data transition (L H or H L) occurring on any input port (P1) or IO ports (P2 and P3) will lead SNC11D back to normal operation mode. 5.5. Sampling Rate Counter The unique sampling rate counter is designed in voice channel to be able to play diverse voices at different sample playing rates. The playing rate can be adaptively set up among from the wide ranges of 2.5KHz to 20KHz. This feature makes voice close to its original source and yield the better voice quality. Ver: 13 June 8, 2005 3 |
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