P89682K datasheet(39/44 Pages) APLUS

部品番号	P89682K

部品情報	VOICE OTP IC

PDF	44 Pages

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メーカー	APLUS [Aplus Intergrated Circuits]

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39 / 44 page

Integrated Circuits Inc.

aP89682K/341K/170K/085K

Ver 2.5.1

May 24 2016

I2C Mode

Fig. 37

Note:

1. If voltage is higher than 4.0V, C (0.1uF(typ)) is necessary for endure high voltage and protect it

from noise which may affect its performance.

Distance between caps and ICs should be minimized to reduce spreading inductance.

The wiring length between the IC and caps may be less than 150mil.

2. Rp is used to filter noise from power line.

A. Rp is unnecessary in DAC mode or VDD less than 3.6v.

The value of Rp is 0 ohm in DAC mode.

B. If voltage is higher than 3.6V and chip is configured as PWM mode,

Rp is necessary for system stability.

The value of Rp is 56 ohm in PWM mode.

The minimum operating voltage would be lifted from 2.0v to 2.2v, when Rp is added.

C. If Rp is added and there are LED drove by OUT[1:3] pin,

please configure the OUT pin as active low to drive LED.

P89682K データシート(PDF) 39 Page - Aplus Intergrated Circuits