BA6810S データシートの表示（PDF） - ROHM Semiconductor
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BA6810S
ROHM Semiconductor
BA6810S Datasheet PDF : 7 Pages
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Audio ICs
Fluorescent display tube level meter
driver, 12-point 2 channel,
VU scale, bar display
BA6810S
The BA6810S is a two-channel, 12-point fluorescent display tube driver for VU-scale bar-level meters.
It uses a dynamic-drive system and has both AC and DC inputs. The AC input mode has a peak hold circuit. The IC
features a power-on mute, and the output block can directly drive fluorescent display tubes, so few external components
are required, allowing cost and space savings while improving reliability.
The grid output duty cycle is 1 / 8.
FApplications
Level meters for all types of AV equipment
FFeatures
1) Uses dynamic-drive system to display two 12-point
channels. 30-pin SDIP package.
2) AC and DC inputs provided. Switching function al-
lows two-mode display.
3) Upper 8 points have peak hold function in AC mode
(two seconds Typ.).
4) Power-on mute function.
5) Forced-mute function.
6) Terminal for meter sensitivity adjustment provided
(adjustment with one terminal is possible).
7) I2L injector current terminal provided.
8) Square root compression amplifier built in.
9) Dynamic-drive system reduces the power dissipa-
tion of the fluorescent display tube power supply.
FBlock diagram
783
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