YDA136 Datasheet, PDF(11/32 Page) YAMAHA CORPORATION – D- 60 STEREO 60W-100W DIGITAL AUDIO POWER AMPLIFIER CONTROLLER

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YDA136 Datasheet, PDF (11/32 Pages) YAMAHA CORPORATION – D- 60 STEREO 60W-100W DIGITAL AUDIO POWER AMPLIFIER CONTROLLER

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YDA136

â Terminal Condition in each Mode

âOperation Mode

YDA136 becomes an operation mode as the following table by the state in each input terminal.

Over Current

Detection

Power Detection

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Low Voltage

Detection Mode - - -

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< VIB

< VVB

< VVD

- Hi-z H L H L

Protect Reset Mode L - -

High temperature

H- -

Detection Mode

Hardware Mute

Mode

HL -

Over Current

Detection Mode

H H - > VOC1

HH -

< VOC2

Clock Stop

Detection Mode

H H - < VOC1 < VOC1

> VOC2

HH - â

Stereo Mode H H L â

Monaural Mode H H H â

> VIB

> VVB

> VVD

- Hi-z H

- > Tmax L H

- < Tmax Hi-z H

< FC1 < Tmax Hi-z H

> FC2

> FC1

< FC2

â Hi-z H

â Hi-z P

LHL

PPP

P *1 L

Note:

1) â-â means all input conditions.

2) âHâ means âHâ level, and âLâ means âLâ level. In addition, âPâ means âPulse oscillation conditionâ.

3) â*1â means indefinite state.

4) Rch over current detection terminal âOCPLR and OCPHRâ can not be operated in Monophonic mode.

5) In the over current detection mode, the mode is continued even if it goes out of the over current condition.

The over current detection mode is canceled by protect reset mode.

6) All registers are initialized when VDD2 voltage (VDD-VSS) becomes below VVD in the low voltage

detection modes.

7) When YDA136 it-self heats higher than the unusual temperature (Tmax), it will become a high temperature

detection mode.

âDigital Audio Signal Input Mode / Analog Audio Signal Input Mode

YDA136 can input both Digital Audio Signal and Analog Audio Signal.

In case of input for the digital audio signal, be sure to connect DAC output terminal (AOL, AOR) and electron volume

input terminal (AIL, AIR) through capacitor for DC cut.

In addition, in case of input for the analog audio signal; be sure to connect an analog audio signal to electron volume input

terminal (AIL,AIR) through a capacitor for DC cut.

At this time, the output of DAC can be made into High-Z by setting the DAC input format of a control register as MODE8.

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