參數(shù)資料
型號: BU9253FS
廠商: Rohm CO.,LTD.
英文描述: KARAOKE echo IC
中文描述: 卡拉OK回聲集成電路
文件頁數(shù): 5/6頁
文件大?。?/td> 72K
代理商: BU9253FS
5
Multimedia ICs
BU9253AS / BU9253FS / BU9255FS
When switching between the muted and unmuted
state (pin 15 (pin 17) L
M
H), the pin 15 (pin 17) M
time should be longer than one SRAM cycle. This is to
assure stability by initializing the SRAM before mode
switching.
Note: Figures in parentheses ( ) are for BU9253AS.
(2) Differences between BU9253AS / FS and BU9255FS
There is a difference regarding the signal stopping for
muting. With BU9253AS / FS, the output from pin 8 (pin
9) is stopped during muting. With BU9255FS, the output
from pin 5 is stopped during muting.
Application example (for BU9253FS / BU9255FS)
V
CC
V
CC
100
μ
0.1
μ
0.01
μ
0.012
μ
20k
20k
8.2k
IN
4700p
10k
100p
39k
MUTE
MIX
2.2
μ
2.2
μ
RESISTOR : [
]
CAPACITOR: [F]
Unit
OUT
3300p
15k
10k
4.7k
0.01
μ
0.01
μ
22
μ
ECHO LEVEL
1
2
3
4
5
6
7
8
0.47
μ
D / A
SRAM
A / D
OSC
16
15
14
13
12
11
10
9
COUNTER
Fig. 2
+
+
+
+
+
(1) Mute control functions
H
Unmuted (operating state)
M
Muted
L
Clock stop and muted
Pin 15 voltage (pin 17)
Mode
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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