TDF8541JSSLASHN2 datasheet(44/54 Pages) NXP

44 / 54 page

TDF8541

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Product data sheet

Rev. 3 — 13 December 2011

44 of 54

NXP Semiconductors

TDF8541

I2C-bus controlled 4

 45 W power amplifier

13. Application information

(1) The SVR and ACGND capacitors and the RADSEL resistor must be connected to pin SGND before they are connected to pin

PGNDn; the ACGND capacitor value must be close to 4

 the input capacitor value. 4  470 nF capacitors can be used as an

alternative to the 2.2

F capacitor shown.

(2) For EMC reasons, a 10 nF capacitor can be connected between each amplifier output and ground.

Fig 29. Test and application diagram

26 dB/

16 dB

26 dB/

16 dB

26 dB/

16 dB

26 dB/

16 dB

001aan095

STANDBY/

FAST MUTE

I2C-BUS

SDA

SCL

VP1

VP2

ADSEL

SELECT

DIAGNOSTIC/

CLIP DETECT

ENGINE START

PROTECTION

STB

IN3

IN1

IN4

IN2

DIAG

+5 V

OUT3+

OUT3-

OUT1+

OUT1-

OUT4+

OUT4-

OUT2+

OUT2-

MUTE

TAB

ACGND

SGND

SVR

2.2 μF(1)

10 μF(1)

PGND1

11 (24)

13 (26)

15 (28)

12 (25)

16 (29)

2 (11)

1 (10) 26 (8) 23 (7)

21 (3)

7 (16)

10 kΩ

RADSEL(1)

5 (9)

18 (2)

20 (1)

10 (17)

8 (18)

6 (13)

4 (15)

27 (36)

22 (6)

24 (4)

14 (27)

17 (30)

9 (23)

3 (14)

19 (32)

25 (5)

PGND2

PGND3

PGND4

TDF8541

470 nF

PROTECTION/

DIAGNOSTIC

PROTECTION/

DIAGNOSTIC

PROTECTION/

DIAGNOSTIC

PROTECTION/

DIAGNOSTIC

(2)

TDF8541JS/N2 数据表(PDF) 44 Page - NXP Semiconductors

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TDF8541JS/N2 数据表(PDF) 44 Page - NXP Semiconductors

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