BA3308FV-E2 データシートの表示（PDF） - ROHM Semiconductor

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BA3308FV-E2

Preamps with Built-in ALC

ROHM Semiconductor 

BA3308F,BA3308FV

Technical Note

●Notes for use

1) Numbers and data in entries are representative design values and are not guaranteed values of the items.

2) Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure

to verify circuit characteristics for your particular application. Modification of constants for other externally connected

circuits may cause variations in both static and transient characteristics for external components as well as this Rohm

IC. Allow for sufficient margins when determining circuit constants.

3) Absolute maximum ratings

Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range

(Topr), may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open

mode) when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using

the IC at times where the absolute maximum ratings may be exceeded.

4) GND potential

Ensure a minimum GND pin potential in all operating conditions. Make sure that no pins are at a voltage below the

GND at any time, regardless of whether it is a transient signal or not.

5) Thermal design

Perform thermal design, in which there are adequate margins, by taking into account the permissible dissipation (Pd) in

actual states of use.

6) Short circuit between terminals and erroneous mounting

Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other

components on the circuits, can damage the IC.

7) Operation in strong magnetic fields

Using the ICs in a strong electromagnetic field can cause operation malfunction.

8) The BA3308F/FV has an on-chip power supply mute circuit that checks for pop noise at power-on. This prevents the

occurrence of pop noise by timing the charge times of the direct current cut capacitors C3 and C4 of 10pin and 11pin,

and of capacitor C8 for the ripple filter of 5pin.

Accordingly, to obtain an adequate effect, it is recommended that the constants of the application circuit be used in C3,

C4, R3, R4, C8, and R8.

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2010.04 - Rev.A

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