TS2012IQT View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TS2012IQT

Filter-free stereo 2x2.8W class D audio power amplifer

STMicroelectronics 

Electrical characteristics

TS2012

Table 7. VCC = +2.5V, GND = 0V, Vic=1.25V, Tamb = 25°C (unless otherwise specified)

Symbol

Parameter

Min. Typ. Max. Unit

Output voltage noise f = 20Hz to 20kHz, RL=8Ω

Unweighted (filterless, G=6dB)

A-weighted (filterless, G=6dB)

Unweighted (with LC output filter, G=6dB)

VN

A-weighted (with LC output filter, G=6dB)

Unweighted (filterless, G=24dB)

A-weighted (filterless, G=24dB)

Unweighted (with LC output filter, G=24dB)

A-weighted (with LC output filter, G=24dB)

57

34

54

33

µVRMS

110

71

104

69

1. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the superimposed sinus signal to VCC @ f = 217Hz.

3.2

Electrical characteristic curves

The graphs shown in this section use the following abbreviations:

● RL+ 15µH or 30µH = pure resistor + very low series resistance inductor

● Filter = LC output filter (1µF+30µH for 4Ω and 0.5µF+60µH for 8Ω)

All measurements are done with CSL=CSR=1µF and CS=100nF (see Figure 2), except for

the PSRR where CSL,R is removed (see Figure 3).

Figure 2.

Test diagram for measurements

CsL

(CsR)

Vcc 1μF

CS

100nF

GND GND

Cin

In+

Out+

15μH or 30μH

RL

4 or 8 Ω

5th order

1/2 TS2012

or

50kHz

In-

Out-

LC Filter

low-pass filter

Cin

GND

Audio Measurement

Bandwith < 30kHz

12/30

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