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參數(shù)資料
| 型號(hào)： | BA7725 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | Analog compander for KARAOKE echo systems |
| 中文描述： | 卡拉OK擴(kuò)展器模擬回聲系統(tǒng) |
| 文件頁(yè)數(shù)： | 8/8頁(yè) |
| 文件大小： | 94K |
| 代理商： | BA7725 |
8
Multimedia ICs
BA7725S / BA7725FS
A : Echo signal attenuation
B : Loop signal attenuation
C : Delay time
C
C
C
B
B
A
(dB)
(t)
Fig.8
Relationship between echo gain and loop gain
(4) Echo signal frequency characteristicis
The figure below shows the attenuation of signals out-
put from pin 1 when the audio signal is input to pin 22
(BA7725S) or pin 20 (BA7725FS). (This is the attenua-
tion when the input signal is output without being
passed through the BU9252S / F, and when the prima-
ry and secondary echo signals are passed through an
attached low pass filter with the same constant shown
in "Application example," and then processed by the
BU9252S / F delay circuit.)
Note: These are the values when using the constant shown in "Application
example."
0
– 10
– 20
– 30
– 40
– 50
100
1k
10k
100k
Sound source
Secondary echo signal
SIGNAL FREQUENCY : f (Hz)
—
L
T
3pin, 5pin = V
CC
(VR : Max.)
Echo signal frequency
characteristics
Fig.9
Primary echo signal
External dimensions (Units: mm)
SDIP22
SSOP-A20
±
3
±
0
19.4
±
0.3
0.5
±
0.1
6
±
1
11
12
22
0.3
±
0.1
0
°
~ 15
°
1.778
7.62
BA7725S
BA7725FS
11
10
20
1
0
7
±
5
±
8.7
±
0.2
0
±
0.36
±
0.1
0.8
1
±
0.3Min.
0.15
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA7725FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Analog compander for KARAOKE echo systems |
| BA7725S | 制造商:ROHM 制造商全稱:Rohm 功能描述:Analog compander for KARAOKE echo systems |
| BA7725S/FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Multimedia LSIs |
| BA7726 | 制造商:ROHM 制造商全稱:Rohm 功能描述:Analog compander with vocal fader for KARAOKE |
| BA7726AFS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Analog compander with vocal fader for KARAOKE |
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