STA1295 datasheet(89/109 Pages) STMICROELECTRONICS

Part #	STA1295

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

PDF	109 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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89 / 109 page

DS12586 Rev 5

89/109

STA1295, STA1275

Electrical characteristics

106

4.9.3

DAC electrical characteristics

Figure 9. DAC output equivalent circuit

Table 45. DAC electrical characteristics

Symbol

Parameter

Limit values

Unit

Min.

Typ.

Max.

VASupply

SR Analog supply

3.0

3.3

3.6

Vrms(1)

1. No external load resistance.

Analog RMS output

741

780

819

mVrms

Vrms(2)

2. External load resistance: 500 Ohm series on 10 kOhm next stage (10/10.5 partition).

Analog RMS output

693

730

766

mVrms

Vcom

P—

—

1.45(3)

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

—V

Cmax

SR Maximum output load

—

Rmin

SR Minimum output resistance

10K

—

Ohm

SNR

Signal to Noise ratio

(A-weighted, BW = 20 kHz, 1 kHz, -60 dBFs)

103

—

THD + N V

Total harmonic distortion + Noise

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

-82

-90

—

PSRR

Power supply rejection ratio

—

Series resistance at output

Ohm

IDD_ADAC C

Analog current consumption of single DAC

—

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