Rohm BA3822LS 5-channel stereo graphic equalizer Datasheet

Audio ICs
5-channel stereo graphic equalizer
BA3822LS / BA3822FS / BA3823LS / BA3824LS
The BA3822LS, BA3822FS, BA3823LS, and BA3824LS are monolithic, five-point stereo graphic equalizer ICs.
Each IC has two channels, and the five center frequencies for each channel are independently set using external capacitors. These ICs feature a wide operating power supply voltage range (VCC = 3.5V to 14V), and are available in compact
24-pin SZIP and SSOP packages, depending on the type. This makes them an ideal choice for home stereo systems,
radio cassette players, and car stereos.
The difference between the ICs is the amount of boost and cut control. Choose according to the requirements of your
application.
Applications
Five-point stereo graphic equalizer for home and car stereo systems.
Features
1) Allows construction of a five-point stereo graphic
equalizer with a single IC.
2) Wide operating power supply voltage range (VCC =
3.5V to 14V).
Absolute maximum ratings (Ta = 25C)
Recommended operating conditions (Ta = 25C)
550
3) Low current dissipation (IQ = 7mA).
4) Available in compact SZIP / SSOP-A24 packages.
Audio ICs
BA3822LS / BA3822FS / BA3823LS / BA3824LS
Electrical characteristics
BA3822LS and BA3822FS
(unless otherwise noted, Ta = 25C, VCC = 8V, VIN = 100mVrms (1kHz), RL = 20kΩ, and F = FLAT)
BA3823LS
(unless otherwise noted, Ta = 25C, VCC = 8V, VIN = 100mVrms (1kHz), RL = 20kΩ, and F = FLAT)
BA3824LS
(unless otherwise noted, Ta = 25C, VCC = 8V, VIN = 100mVrms (1kHz), RL = 20kΩ, and F = FLAT)
551
Audio ICs
BA3822LS / BA3822FS / BA3823LS / BA3824LS
Differences between the BA3822LS, BA3822FS, BA3823LS and BA3824LS
Control range gain
Application examples
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External components
As the ICs have different control range gain, the external
component values are different for the same center frequencies.
Ripple rejection
The BA3823LS circuit design has excellent ripple rejection, and the external ripple filter can be omitted.
Audio ICs
BA3822LS / BA3822FS / BA3823LS / BA3824LS
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Audio ICs
External dimensions (Units: mm)
554
BA3822LS / BA3822FS / BA3823LS / BA3824LS
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