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BD3824FS fiches techniques PDF

ROHM Semiconductor - NTSC-PAL Audio I/O

Numéro de référence BD3824FS
Description NTSC-PAL Audio I/O
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BD3824FS fiche technique
TECHNICAL NOTE
Video/Audio Interfaces for TV and DVD Recorders
NTSC-PAL Audio I/O
Interface for Recording/Playing
BD3822FS, BD3824FS
ƔDescription
BD3822FS and BD3824FS are the audio selectors with internal input selector, gain amp, ALC and power save ON/OFF functions.
BD3822FS contains the 1/2 power compression amp for level meter and 2ch volume. BD3824FS contains the line amp.
BD3822FS and BD3824FS unify the board pattern by pin compatible, and can be used individually as a high-end and low-end
model.
ƔFeatures
1) Low distortion (0.0015%) and low noise (3.2μVrms) by using a resistance ladder type circuit for volume. Shock sound in
switching is also reduced (BD3822FS)
2) Low distortion (0.0015%) and low noises (2.3μVrms)(BD3824FS)
3) Contains an ALC circuit, and can also be used as an RF output
4) Best suited to energy-saving design by low current consumption by using the Bi-CMOS process; compact regulator in the
set, being advantageous to heating in terms of quality
5) SSOP-A32 is used for package. The PCB layout can be easy and the area of PCB is reduced by putting sound input
terminals together, and output terminals, too.
6) BD3822FS and BD3824FS can be used with the same PCB board.
7) I2C BUS data format of BD3822FS is upward compatible with BD3824FS, and can be used without changing the software.
8) A system is employed, in which the waveform connected to the input (tuner, Front, Ext) is not distorted even in standby
mode.
ƔApplications
DVD recorder
ƔProduct lineup
Function
BD3822FS
Volume function
Available
1/2 power compression amp
Available
Line amp
-
Circuit current (mA)
7
Output noise (μVrms)
3.2
BD3822FS is an upstream compatible IC with BD3824FS.
BD3824FS
-
-
Available
6.4
2.3
Ver.B Oct.2005

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