TS4604 datasheet(24/31 Pages) STMICROELECTRONICS

Part #	TS4604

Description	Stereo headset driver and analog audio line driver with integrated reference to ground

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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24 / 31 page

Application information

TS4604

24/31

Doc ID 17913 Rev 1

Figure 53.

Frequency response 2nd-order MFB filter

6.10

ESD protection and compliance

To provide excellent ESD immunity, an audio line IPAD(a) (STMicroelectronics reference

EMIF04-EAR02M8) can be added at the output of the TS4604 (Figure 54).

By adding the IPAD, the TS4604 complies with the standard IEC 61000-4-2 level 4 on the

external pins.

●

OUT_HPL and OUT_HPR for the headphone driver.

●

OUT_LDL and OUT_LDR for the Line driver.

100

1000

10000

100000

-9

-8

-7

-6

-5

-4

-3

-2

-1

R1 = Rin = 10k

Ω,

Rfd = 24k

Ω,

C1 = 680pF,

C2 = 120pF,

Frequency (Hz)

Table 8.

Recommended values for 2nd order low-pass filter

Low-pass filter

Rin

Rfd

25 kHz

10 k

15 k

1 nF

200 pF

30 kHz

10 k

24 k

680 pF

120 pF

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