ADSP-BF527C_15 Datasheet, PDF (13/36 Pages) Analog Devices – Blackfin Embedded Processor with Codec

ADSP-BF522C/ADSP-BF523C/ADSP-BF524C/ADSP-BF525C/ADSP-BF526C/ADSP-BF527C
Figure 14 on Page 13 and Figure 15 on Page 14 describe alterna-
tive external connections for SPI or TWI control of the
ADSP-BF52xC codec. The figures are the same except for the
shaded area in each.
X₁
C_P
C
P
AVDD
10 K:
SPI
ADSP-BF52XC
XTI/CODEC_MCLK
XTO
CODEC
1 PF
LLINEIN
10
100
M: 220 pF
K:
1 PF
RLINEIN
10
100
M: 220 pF
K:
RSCLKx
RFSx
DRxPRI
DTxPRI
TFSx
SPISELx
MOSI
SCK
BLACKFIN
PROCESSOR
SDA
SCL
DACLRC
DACDAT
ADCDAT
ADCLRC
CODEC_BCLK
MICBIAS
MICIN
680:
R_MIC ⁺
47 K:
HPVDD
HPGND
AVDD
AGND
LOUT
HPVDD
+
0.1 PF
10 PF
AVDD
+
0.1 PF
10 PF
1 PF
+
100 :
47 K:
ROUT
1 PF
+
100 :
47 K:
CSCL
CSDA
CSB
CMODE
LHPOUT
220 PF
+
47 K:
RHPOUT
220 PF
+
47 K:
CODEC_CLKOUT
VMID
100 :
0.1 PF
+
10 PF
Figure 14. Recommended Application Circuit Using SPI Control
Rev. A | Page 13 of 36 | March 2010