TDA7535 Datasheet, PDF (4/9 Pages) STMicroelectronics – DELTA/SIGMA CASCADE 20 BIT STEREO DAC

TDA7535
DAC ELECTRICAL CHARACTERISTICS (continued)
Vdd = 3.3V; Tamb = 25°C; Input signal frequency = sinus wave generated by Audio Precision Sys.2; Input
Signal Amplitude = see notes; Noise Integration Bandwidth = 20Hz to 22KHz (A- weighted)
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Passband Ripple
0.12
dB
Stopband
@ 3dB
@ 90dB
44.1kHz Sampling Rate
21.53
kHz
24.80
Interchannel Gain Mismatch
0.05
0.1
dB
Note1:
Note 2:
Note 3:
Note 4:
It is the ratio between the maximum input signal and the integration of the in-band noise after deducing the power of signal funda-
mental. It depends on the input signal amplitude. In this case 0dB means full scale digital, 1kHz frequency used.
It is the ratio of the rms value of the signal fundamental component at 0dB (full scale digital) to the rms value of all of the harmonic
components in the band.
measured using the SNR at -60dB input signal, with 60dB added to compensate for small input signal.
Left channel on with 0dB/1kHz input signal, Right channel on with DC input signal.
Figure 1. I²S interface Diagram
FSYNC
SCK
SDATA
Left
32 * SCK
20 Bits
Right
32 * SCK
20 Bits
MSB
LSB
MSB
LSB
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