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參數(shù)資料
| 型號： | UPD7759 |
| 廠商： | NEC Corp. |
| 英文描述： | ADPCM SPEECH SYNTHESIZER LSIs |
| 中文描述： | 差分PcM語音合成器大規(guī)模集成電路 |
| 文件頁數(shù)： | 14/18頁 |
| 文件大?。?/td> | 183K |
| 代理商： | UPD7759 |
μ
PD7759
14
t
DA
46.5
47
ms
BUSY output delay
t
SBS
4
80
ms
t
AW
V
DD
= 5 V
±
10 %
350
ns
2.3 STANDBY MODE
(1) TIMING REQUIREMENTS
Parameters
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Standby escape signal
L*
Note
pulse width
(2) SWITCHING CHARACTERISTICS
Parameters
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Operation mode hold time
t
STB
after synthesis
2.9
3
s
D/A converter activate
/inactivate time
BUSY set up time
t
SB
from L*
↓
6.25
10
μ
s
Synthesis start time
t
SSS
after D/A converter activation
2.1
2.2
ms
In standby mode, oscillation
start time is included.
Note
L*: Signal to release standby mode.
CS ST : When operation mode is stand alone mode.
<
=
CS WR: When operation mode is slave mode
TIMING CHART (Standby mode)
t
AW
BUSY
L*
t
SB
t
STB
t
DA
t
SBS
t
DA
t
SSS
Synthesis
max
mid
0
I
AVO
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