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參數(shù)資料
| 型號： | MSM6650Family |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Voice Synthesis IC,(話音合成芯片) |
| 中文描述： | 語音合成芯片，（話音合成芯片） |
| 文件頁數(shù)： | 93/124頁 |
| 文件大?。?/td> | 694K |
| 代理商： | MSM6650FAMILY |
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93/124
Semiconductor
MSM6650 Family
13. STANDBY CONVERSION
If standby conversion YES is selected by command option, the IC enters standby status and stops all
operations if the next phrase does not start up within 0.2 sec after playback ends. If restarted it takes
about 100 ms until voice starts, since a pop noise countermeasure circuit operates.
If standby conversion NO is selected by command option, the IC does not enter standby status, even
if voice ends, and the output of AOUT becomes about 1/2 V
DD
. Current is flowing since oscillation
is operating. If started up voice starts in about 350 ms.
If standby conversion NO is selected, it is necessary to input a
RESET
pulse to enter standby status.
If a
RESET
pulse is input, a pop noise is generated since the AOUT output level instantaneously
becomes GND level.
BUSY
AOUT
NAR
ST
CMD
I6-I0
"H"
As shown in Figure 13.1, when
ST
pulse is input during standby conversion after voice ends, the IC
exits from standby status, and the output of AOUT goes 1/2 V
DD
. When the output reaches 1/2 V
DD
,
voice synthesis starts.
14. VOICE OUTPUT
For the voice output pin, a command option can select whether the DA converter output is directly
output or output through an internal low-pass filter.
Table 14.1 shows output level of AOUT pin.
Table 14.1 Output Level of AOUT Pin
Regeneration method
Condition
DA converter output
LPF output
—
—
—
Lowest level
0
approx. 0.15
￥
V
DD
approx. 0.25
￥
V
DD
approx. 0.25
￥
V
DD
approx. 0.25
￥
V
DD
Center level
approx. 0.5
￥
V
DD
approx. 0.5
￥
V
DD
approx. 0.5
￥
V
DD
approx. 0.5
￥
V
DD
approx. 0.5
￥
V
DD
Highest level
approx. V
DD
approx. 0.95
￥
V
DD
approx. 0.75
￥
V
DD
approx. 0.75
￥
V
DD
approx. 0.75
￥
V
DD
ADPCM
PCM
Melody
BEEP Tone
Figure 13.1 ST Pulse Input Timing during Standby Conversion
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| MSM6652A | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Internal Mask ROM Voice Synthesis IC, Internal One-Time-Programmable OTP ROM Voice Synthesis IC, External ROM Drive Voice Synthesis IC |
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