TS4604 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

TS4604

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

STMicroelectronics 

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Application information

Figure 53. Frequency response 2nd-order MFB filter

5

4

3

2

1

0

-1

-2

-3

-4

-5

-6 R1 = Rin = 10kΩ,

Rfd = 24kΩ,

-7

C1 = 680pF,

-8 C2 = 120pF,

-9

1

10

100

1000

Frequency (Hz)

10000

100000

TS4604

Table 8. Recommended values for 2nd order low-pass filter

Low-pass filter

Rin

R1

Rfd

25 kHz

30 kHz

10 kΩ

10 kΩ

10 kΩ

10 kΩ

15 kΩ

24 kΩ

C1

1 nF

680 pF

C2

200 pF

120 pF

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.

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a. Copyright ST Microelectronics.

Doc ID 17913 Rev 1

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