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BH3854 Datasheet

  • BH3854

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Audio ICs
Serial sound control IC
BH3854AS / BH3854AFS
The BH3854AS and BH3854AFS are signal processing ICs designed for volume and tone control in CD radio cassettes
and other audio products. Their three-line serial control enables them to control volume and tone on the basis of signals
from a microcomputer, etc.
FApplications
CD radio cassettes, mini component stereo systems, car
stereos
FFeatures
1) They facilitate direct serial control from a microcom-
puter of volume (main volume) and tone (bass,
treble). DC control is also possible.
2) Volume is produced by a low-distortion, low-noise
VCA. Designed to minimize step noise.
3) Input amp can be used for gain adjustment, and ma-
trix surround yields powerful sound.
4) Stable standard voltage supply and built-in I / O buff-
er mean that few attachments are needed. SSOP32
package designed to save space.
FAbsolute
maximum ratings (Ta = 25_C)
5) Open collector has four outputs, which makes logic
control possible.
6) Excellent for volume and tone control devices in CD
radio cassettes, micro components, car stereos,
televisions, etc.
7) Digital GND pin and analog GND pin are separated
with an impedence of more than 1M鈩?
FRecommended
operating conditions (Ta = 25_C)
633

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