STA1295 datasheet(87/109 Pages) STMICROELECTRONICS

부품명	STA1295

상세설명	Accordo5 - Automotive infotainment processors for display audio and cluster applications

PDF	109 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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87 / 109 page

DS12586 Rev 5

87/109

STA1295, STA1275

Electrical characteristics

106

The equivalent circuit representative of the MIC ADC input is depicted in Figure 6.

Figure 6. MICADC input equivalent circuit

4.9.2

ADC0: Audio

ΣΔ ADC electrical characteristics

IMIC_BIAS

Current through MIC_BIAS

IDD_AMICADC C

Analog current consumption

6.5

1. Max variation due to process mismatch +/- 5%

Table 43. MICADC electrical characteristics (continued)

Symbol

Parameter

Limit values

Unit

Min.

Typ.

Max.

Table 44.

ΣΔ Audio ADC electrical characteristics

Symbol

Parameter

Limit values

Unit

Min.

Typ.

Max.

VASupply

SR Analog supply

3.0

3.3

3.6

Vin

SR Single ended analog input

2.8(1)

1. Max possible tolerable variation +/-5%

Vp-p

1.0(1)

Vrms

Vcom

DC coupled input common mode

1.5

1.65

1.8

AC coupled input common mode

1.65

3.3

SNR

Signal to noise ratio

(A-weighted, 1 kHz, 0 dBFs, BW = 20 kHz)

THD + N

Total harmonic distortion + noise

-80

-87

IDD_ASDADC

Analog current consumption

12.5

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