TFA9812HN/N1,518 Datasheet TFA9812HN/N1,518, TFA9812HN/N1,557 | P52-P54

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Preliminary data sheet Rev. 02 — 22 January 2009 52 of 66

NXP Semiconductors

TFA9812

BTL stereo Class-D audio ampliﬁer with I

2

S input

14.4.1 I

2

S slave mode and Legacy control mode

Fig 13. Simpliﬁed application diagram for I

2

S slave mode and Legacy control mode

TFA9812

ADSEL1/PLIM1

OUT1N

BOOT2P

OUT2P

V

DDP

V

DDP

OUT1P

BOOT1P

OUT2N

ADSEL2/PLIM2

XTALIN

XTALOUT

V

DDA(3V3)

STABA

REFA

V

DDA

TEST1

V

SS1

STAB2

V

SSP2

V

SSP2

BOOT2N

CSEL

24 dB GAIN

ENABLE

AVOL

POWERUP

CDELAY

DIAG

STAB1

V

SSP1

V

SSP1

BOOT1N

SCL/SFOR

SDA/MS

V

DDD(3V3)

STABD

REFD

TEST2

DATA

WS

BCK

MCLK

V

SS2

EXPOSED DIE PADDLE

36

37

38

39

40

41

42

43

44

45

46

47

48

35 34 33 32 31 30 29 28 27 26 25

ENABLE

DC-VOLUME CONTROL

POWERUP

DIAGNOSTIC

C

DELAY

1 nF

C

STAB

100 nF

I

2

S DATA

I

2

S WS

I

2

S BCK

I

2

S MLCK (optional)

V

DDD

C

vddd

100 nF

C

STABD

1 µF

C

VDDA

100 nF

3.3 V VPA

C

STAB

100 nF

C

VPA

100 nF

C

STAB

100 nF

12 3 4 56 789 101112

010aaa476

C

BOOT

15 nF

C

SN

470 pF

C

SN

470 pF

C

LC

680 nF

C

LC

680 nF

C

BOOT

15 nF

R

SN

10 Ω

R

SN

10 Ω

C

LC

680 nF

C

LC

680 nF

Lic

S2F2

S1 F1

15 µH

24

23

22

21

20

19

18

17

16

15

14

13

C

VDDP

C

VDDP

VP

OUT1

+

−

6 Ω to 8 Ω

OUT2

+

−

6 Ω to 8 Ω

C

BOOT

15 nF

C

BOOT

15 nF

F2 S2

F1S1

15 µH

Lic

R

SN

10 Ω

R

SN

10 Ω

C

SN

470 pF

C

SN

470 pF

POWER IN

V

P

= 8 V to 20 V

GND

C

VDDP

220 µF / 25 V

R

VDDA

10 Ω

VPA

VP

100 nF

R

STABA

1 kΩ

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx

xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx

Preliminary data sheet Rev. 02 — 22 January 2009 53 of 66

NXP Semiconductors

TFA9812

BTL stereo Class-D audio ampliﬁer with I

2

S input

14.4.2 I

2

S slave mode and I

2

C control mode

Fig 14. Simpliﬁed application diagram for I

2

S slave mode and I

2

C control mode

TFA9812

ADSEL1/PLIM1

OUT1N

BOOT2P

OUT2P

V

DDP

V

DDP

OUT1P

BOOT1P

OUT2N

ADSEL2/PLIM2

XTALIN

XTALOUT

V

DDA(3V3)

STABA

REFA

V

DDA

TEST1

V

SS1

STAB2

V

SSP2

V

SSP2

BOOT2N

CSEL

GAIN

ENABLE

AVOL

POWERUP

CDELAY

DIAG

STAB1

V

SSP1

V

SSP1

BOOT1N

SCL/SFOR

SDA/MS

V

DDD(3V3)

STABD

REFD

TEST2

DATA

WS

BCK

MCLK

V

SS2

EXPOSED DIE PADDLE

36

37

38

39

40

41

42

43

44

45

46

47

48

35 34 33 32 31 30 29 28 27 26 25

ENABLE

POWERUP

DIAGNOSTIC

C

DELAY

1 nF

C

STAB

100 nF

I

2

C SCL

I

2

C SDA

I

2

S DATA

I

2

S WS

I

2

S BCK

I

2

S MLCK

VDDD

C

VDDD

100 nF

C

STABD

1 µF

C

VDDA

100 nF

3.3 V VPA

C

STAB

100 nF

C

VPA

100 nF

C

STAB

100 nF

1 2 3 4 5 6 7 8 9 10 11 12

010aaa477

C

BOOT

15 nF

C

SN

470 pF

C

SN

470 pF

C

LC

680 nF

C

LC

680 nF

C

BOOT

15 nF

R

SN

10 Ω

R

SN

10 Ω

C

LC

680 nF

C

LC

680 nF

Lic

S2F2

S1 F1

15 µH

24

23

22

21

20

19

18

17

16

15

14

13

C

VDDP

C

VDDP

VP

OUT1

+

−

6 Ω to 8 Ω

OUT2

+

−

6 Ω to 8 Ω

C

BOOT

15 nF

C

BOOT

15 nF

F2 S2

F1S1

15 µH

Lic

R

SN

10 Ω

R

SN

10 Ω

C

SN

470 pF

C

SN

470 pF

3.3 V

POWER IN

V

P

= 8 V to 20 V

GND

C

VDDP

220 µF / 25 V

R

VDDA

10 Ω

VPA

VP

100 nF

R

STABA

1 kΩ

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx

xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx

Preliminary data sheet Rev. 02 — 22 January 2009 54 of 66

NXP Semiconductors

TFA9812

BTL stereo Class-D audio ampliﬁer with I

2

S input

14.4.3 I

2

S master mode and Legacy control mode

Fig 15. Simpliﬁed application diagram for I

2

S master mode and Legacy control mode

TFA9812

ADSEL1/PLIM1

OUT1N

BOOT2P

OUT2P

V

DDP

V

DDP

OUT1P

BOOT1P

OUT2N

ADSEL2/PLIM2

XTALIN

XTALOUT

V

DDA(3V3)

STABA

REFA

V

DDA

TEST1

V

SS1

STAB2

V

SSP2

V

SSP2

BOOT2N

CSEL

24 dB GAIN

ENABLE

AVOL

POWERUP

CDELAY

DIAG

STAB1

V

SSP1

V

SSP1

BOOT1N

SCL/SFOR

SDA/MS

V

DDD(3V3)

STABD

REFD

TEST2

DATA

WS

BCK

MCLK

V

SS2

EXPOSED DIE PADDLE

36

37

38

39

40

41

42

43

44

45

46

47

48

35 34 33 32 31 30 29 28 27 26 25

ENABLE

DC-VOLUME CONTROL

POWERUP

DIAGNOSTIC

C

DELAY

1 nF

C

STAB

100 nF

I

2

S DATA

I

2

S WS

I

2

S BCK

I

2

S MLCK (optional)

V

DDD

C

vddd

100 nF

C

STABD

1 µF

C

VDDA

100 nF

3.3 V VPA

C

STAB

100 nF

C

VPA

100 nF

C

STAB

100 nF

12 3 4 56 789 101112

010aaa478

C

BOOT

15 nF

C

SN

470 pF

C

SN

470 pF

C

LC

680 nF

C

LC

680 nF

C

BOOT

15 nF

R

SN

10 Ω

R

SN

10 Ω

C

LC

680 nF

C

LC

680 nF

Lic

S2F2

S1 F1

15 µH

24

23

22

21

20

19

18

17

16

15

14

13

C

VDDP

C

VDDP

VP

OUT1

+

−

6 Ω to 8 Ω

OUT2

+

−

6 Ω to 8 Ω

C

BOOT

15 nF

C

BOOT

15 nF

F2 S2

F1S1

15 µH

Lic

R

SN

10 Ω

R

SN

10 Ω

C

SN

470 pF

C

SN

470 pF

POWER IN

V

P

= 8 V to 20 V

GND

C

VDDP

220 µF / 25 V

R

VDDA

10 Ω

VPA

VP

100 nF

R

STABA

1 kΩ

XTALL

C

XTALL

18 pF

C

XTALL

18 pF

3.3 V

TFA9812HN/N1,518

TFA9812HN/N1,518

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