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How to select application parts

Initial condition when power supply (17 pin) is turned ON

A circuit that carries out initialization in IC, when power supply (17 pin) is turned ON is incorporated. Settings are as shown in the

following table. However, it is recommended to transmit the data to all the addresses as initial data when power is turned ON, and

to apply mute while the initial data is input

Limits

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

VCC rise time

Trise

20

-

-

S

VCC rise time from 0V to 3V

VCC voltage when power on

reset is released.

Vpor

-

2.6

-

V

Function

Initial Condition

Input Selector

Input MUTE

Volume

- dB

Gain SERECTOR

0dB

Signal input section

1) Setting for input coupling capacitor

inside into account. This makes up the primary HPF characteristics of the RC.

2) SHORT mode of input

switch in order to achieve low impedance.

Operation Notes

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 electromagnetic field

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

A(f)

GAIN[dB

F Hz

0

Fig.15 Sigal input section

C F

Input terminal