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| TL7231MD Datasheet, PDF (25/37 Pages) Samsung semiconductor – FULL LAYER-III ISO/IEC 11172-3 AUDIO DECODER | |||
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TL7231MD
DAC
DAC of TL7231MD employs the 1-bit 4th-order sigma-delta architecture with 16-bit resolution,
over-sampling of 64X. Analog post-filter with low clock sensitivity and linear phase can filter out
the shaping-noise and output analog voltage with high resolution. The characteristic of Internal
DAC is shown Table 7.
Table 7. Characteristics of Internal DAC
PARAMETER
MIN
TYP
MAX
UNITS
Resolution
16
bits
SNR
79.7
dB
THD
84.9
dB
SNDR
78.5
dB
Reference Voltage Output
0.5Ã
V
(DACVREF)
DACVDDA
Frequency Response
± 0.1
± 0.5
dB
Analog Output
Voltage Range
0.5Ã
Vpp
DACVDDA
Load Impedance
10K
â¦
Digital Filter
Pass Band Ripple
± 0.0072
dB
Stop and Attenuation
62.7
dB
Pass Band
0.45
Fs
(DACVDDD/DACVDDA=3.0V, Temp=25°C, Fs=44.1KHz, Signal Freq.=20~20KHz, Cload of AOUTL/AOUTR = 10pF)
With TL7231MD, user can configure whether the internal DAC is used or not. The configuration
of DAC can be achieved through HIP commands shown in Table 5. When using internal DAC,
the following circuit in Figure 17 is recommended.
SAMSUNG Electronics CO.
25/37
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