BA6810S Rohm Semiconductor, BA6810S Datasheet

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BA6810S

Manufacturer Part Number
BA6810S
Description
Manufacturer
Rohm Semiconductor
Datasheet

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BA6810S
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ROHM
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BA6810S
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CYPRESS
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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
2) AC and DC inputs provided. Switching function al-
3) Upper 8 points have peak hold function in AC mode
4) Power-on mute function.
FBlock diagram
Fluorescent display tube level meter
driver, 12-point
VU scale, bar display
BA6810S
Audio ICs
channels. 30-pin SDIP package.
lows two-mode display.
(two seconds Typ.).
2 channel,
5) Forced-mute function.
6) Terminal for meter sensitivity adjustment provided
7) I
8) Square root compression amplifier built in.
9) Dynamic-drive system reduces the power dissipa-
(adjustment with one terminal is possible).
tion of the fluorescent display tube power supply.
2
L injector current terminal provided.
783

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BA6810S Summary of contents

Page 1

... 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 ...

Page 2

... Audio ICs FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions 784 BA6810S ...

Page 3

... Audio ICs FElectrical characteristics (unless otherwise noted 25_C 5.0V) CC BA6810S 785 ...

Page 4

... Audio ICs 786 BA6810S ...

Page 5

... Audio ICs FMeasurement circuit FApplication example BA6810S 787 ...

Page 6

... Peak hold circuit The BA6810S features a peak hold circuit that temporari- ly holds peak signal levels in AC input mode. The peak hold function can be used with the upper 8 points (5 to 12). The peak hold time depends on the oscil- lator frequency ...

Page 7

... Audio ICs FElectrical characteristics curves FExternal dimensions (Units: mm) BA6810S 789 ...

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