Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Multi-purpose TSSOP 8

TAS5414A, TAS5424A

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SLOS535C –MAY 2009– REVISED APRIL 2011

Table 14. External Control Register 2 (0x09) DC Offset Reduction and Current Limit

D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION

0 0 0 0 0 0 0 0 Enable dc offset reduction, set current limit to level 1

– – – – – – – 1 Disable channel 1 dc offset reduction

– – – – – – 1 – Disable channel 2 dc offset reduction

– – – – – 1 – – Disable channel 3 dc offset reduction

– – – – 1 – – – Disable channel 4 dc offset reduction

– – – 1 – – – – Set channel 1 current limit (0 = level 1, 1 = level 2)

– – 1 – – – – – Set channel 2 current limit (0 = level 1, 1 = level 2)

– 1 – – – – – – Set channel 3 current limit (0 = level 1, 1 = level 2)

1 – – – – – – – Set channel 4 current limit (0 = level 1, 1 = level 2)

Table 15. External Control Register 3 (0x0A) Switching Frequency Select and Clip_OTW Configuration

D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION

0 0 0 0 1 1 0 1 Set f

= 417 kHz, configure clip and OTW, 45° phase, disable hard stop

– – – – – – 0 0 Set f

= 500 kHz

– – – – – – 1 0 Set f

= 357 kHz

– – – – – – 1 1 Invalid frequency selection (do not set)

– – – – 0 0 – – Configure CLIP_OTW pin for tweeter detect only

– – – – 0 1 – – Configure CLIP_OTW pin for clip detect only

– – – – 1 0 – – Configure CLIP_OTW pin for overtemperature warning only

– – – 1 – – – – Enable hard-stop mode

– – 1 – – – – – Set f

to a 180° phase difference between adjacent channels

X X – – – – – – Reserved

Table 16. External Control Register 4 (0x0B) Load Diagnostics and Master/Slave Control

D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION

0 1 0 0 0 0 0 0 Disable load diagnostics and dc detect SD, master mode

– – – – – – – 1 Enable channel 1, load diagnostics

– – – – – – 1 – Enable channel 2, load diagnostics

– – – – – 1 – – Enable channel 3, load diagnostics

– – – – 1 – – – Enable channel 4, load diagnostics

– – – 1 – – – – Enable dc detect shutdown on all channels

– – 1 – – – – – Enable tweeter-detect mode

– 0 – – – – – – Enable slave mode (external oscillator must be provided)

X – – – – – – – Reserved

Table 17. External Control Register 5 (0x0C) Output Control

D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION

0 0 0 1 1 1 1 1 All channels, Hi-Z, mute, reset disabled

– – – – – – – 0 Set channel 1 to mute mode, non-Hi-Z

– – – – – – 0 – Set channel 2 to mute mode, non-Hi-Z

– – – – – 0 – – Set channel 3 to mute mode, non-Hi-Z

– – – – 0 – – – Set channel 4 to mute mode, non-Hi-Z

– – – 0 – – – – Set non-Hi-Z channels to play mode, (unmute)

– 1 1 – – – – – Reserved

1 – – – – – – – Reset device (I

C does not respond with an ACK)