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STA529 bảng dữ liệu(PDF) 27 Page - STMicroelectronics

tên linh kiện STA529
Giải thích chi tiết về linh kiện  FFX™ audio codec with analog and digital inputs and 2 x 1.2 W (or 2 x 100 mW HP) class-D amplifier
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STA529 bảng dữ liệu(HTML) 27 Page - STMicroelectronics

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STA529
ADC
Doc ID 13095 Rev 3
27/57
7.3
Applications scheme
Figure 7.
Diagram of input coupling and supply decoupling
7.4
Configuration examples
The ADC sampling frequency can be selected from three values:
●
normal (from 32 kHz to 48 kHz)
●
low (from 16 kHz to 24 kHz)
●
very-low (from 8 kHz to 12 kHz)
The setting is done through bits ADC_FS_RANGE of register MISC on page 50. For all
other settings register ADCCFG on page 49 is used.
AC coupled
DC coupled
DC coupled
AC coupled
C9
C0
C1
C5
C2
C6
C3
C7
C4
C8
3V, 3A supply
VSSA
VSSA
R1
INL
INR
AVDD
AGND
VHI
VLO
VCM
VBIAS
C1, C2, C3, C4 = 10 nF
(These capacitors must be
placed very close to their
respective IC pins)
C5, C6, C7 = 33 µF
(Low ESR and ESL
capacitors are
recommended)
VSSA plane must be
different from other
ground plane
3V, 3A must be a
low-noise supply and
separate from
other supplies
R1 = 500
Ω
C8 = 10 µF
C9, C0 = 1 µF



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