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參數(shù)資料
| 型號(hào)： | SNC543 |
| 廠商： | SONIX Technology Co., Ltd. |
| 英文描述： | Two Channel Direct Drive Speech Controller |
| 中文描述： | 雙通道語音控制器直接驅(qū)動(dòng) |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 425K |
| 代理商： | SNC543 |
SNC543
Two Channel Direct Drive Speech Controller
5
FUNCTION DESCRIPTIONS
5.1. Oscillator
SNC543 accept RC type oscillator for system clock. The typical circuit diagram for
oscillator is listed as follow.
r
OSC
VCC
RC Oscillator
5.2. ROM
SNC543 contains substantial 52K words (10-bit) internal ROM. Program, voices and
other data are shared with this same 52K words ROM.
5.3. RAM
SNC543 contains 128 nibbles RAM. The 128 nibbles RAM are divided into eight
pages (page 0 to page 7, 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 7) 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 SNC543 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 SNC543, any valid data transition (L
H or H
L)
occurring on any input port (P1) or IO ports (P2 and P3) will lead SNC543 back to
normal operation mode.
5.5. Sampling Rate Counters
Ver: 1.3
August 26, 2003
3
2 independent sampling rate counters are dedicated to 2 individual voice channels 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.
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