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