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CXA1878Q 参数 Datasheet PDF下载

CXA1878Q图片预览
型号: CXA1878Q
PDF下载: 下载PDF文件 查看货源
内容描述: 与录制/播放均衡器放大器杜比BC型降噪系统 [Dolby B-C Type Noise Reduction System with Recording/Playback Equalizer Amplifier]
分类和应用: 噪声抑制集成电路消费电路商用集成电路放大器ISM频段
文件页数/大小: 36 页 / 1032 K
品牌: SONY [ SONY CORPORATION ]
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CXA1878Q  
Typical pin voltage  
Pin  
No.  
Symbol  
I/O Z (in)  
Equivalent circuit  
Description  
DC  
AC  
Negative power supply  
VEE  
31  
–7.0V  
Recording equalizer  
amplifier high frequency  
calibration  
Controlled with DC  
voltages of 0 to 5V.  
High: High frequency  
level gain  
increased  
Low : High frequency  
level gain  
2.5V  
when  
open  
54k  
32  
32 GP CAL  
I
54kΩ  
reduced  
Leave this pin open  
when not using the  
high frequency  
calibration function.  
Recording equalizer  
amplifier calibration  
Controlled with DC  
voltages of 0 to 5V.  
High: Recording level  
gain increased  
Low : Recording level  
gain reduced  
Leave this pin open  
when not using the  
recording calibration  
function.  
2.5V  
when  
open  
54k  
33 REC CAL  
33  
I
I
I
54kΩ  
50kΩ  
50kΩ  
2k  
6k  
NR control  
2.5V  
when  
open  
High: C type  
Medium: B type  
Low: NR OFF  
34  
34 NR SW  
50k  
DVCC/2  
Dolby S type selection  
Select the calibration  
mode with this pin.  
High: CALIBRATION  
Medium: B-C type  
Low: S type  
2k  
6k  
2.5V  
when  
open  
35 S SW  
35  
50k  
DVCC/2  
– 9 –