STA529 datasheet(26/57 Pages) STMICROELECTRONICS

부품명	STA529

상세설명	FFX™ audio codec with analog and digital inputs and 2 x 1.2 W (or 2 x 100 mW HP) class-D amplifier

PDF	57 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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26 / 57 page

ADC

STA529

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Doc ID 13095 Rev 3

7.2.1

Digital filter characteristics

7.2.2

High-pass filter characteristics

7.2.3

Programmable gain amplifier (PGA)

The PGA is available in mic-in mode only. The input signal can be amplified from 0 to 42 dB

in 6-dB steps via bits PGA of register ADCCFG on page 49.

Table 17.

Digital filter characteristics

Parameter

Typical

Unit

Pass band

0.4535 * fs

kHz

Pass-band ripple:

Fs mode

Fs_by_2 mode

Fs_by_4 mode

0.08 at 44.1 kHz

0.08 at 22.05 kHz

0.08 at 11.025 kHz

Stop-band attenuation:

Fs mode

Fs_by_2 mode

Fs_by_4 mode

45 at 44.1 kHz

45 at 22.05 kHz

45 at 11.025 kHz

Group delay:

Fs mode

Fs_by_2 mode

Fs_by_4 mode

0.4 at 32 kHz

0.7 at 16 kHz

1.4 at 8 kHz

Table 18.

High-pass filter characteristics

Parameter

Typical

Unit

Frequency response:

-3 dB

-0.08 dB

Phase deviation at 20 Hz

19.35

degree

Passband ripple

0.08

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