CS4205-KQR Cirrus Logic Inc, CS4205-KQR Datasheet - Page 16
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CS4205-KQR
Manufacturer Part Number
CS4205-KQR
Description
Audio CODECs IC AC'97 Codec for Docking Stations
Manufacturer
Cirrus Logic Inc
Datasheet
1.CS4205-KQZ.pdf
(81 pages)
Specifications of CS4205-KQR
Number Of Adc Inputs
8
Number Of Dac Outputs
3
Conversion Rate
48 KSPs
Interface Type
Serial (5-Wire)
Resolution
18 bit, 20 bit
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Package / Case
LQFP-48
Minimum Operating Temperature
0 C
Number Of Channels
1 ADC, 1 DAC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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3. DIGITAL SIGNAL PATHS
The CS4205 includes a number of internal digital
signal path options. Figure 9 shows the principal
signal flow options through one channel of the de-
vice. Four commonly used signal flow modes are
detailed in the following sections. The signal flow
modes are controlled through the bits in the AC
Mode Control Register (Index 5Eh). The bit config-
uration for each detailed mode is listed in Table 1
on page 17.
16
c+lfe
front
surr
cap
cap
L/R
mic
ch
ch
ch
½ SRC
SRC
SRC
IN1
IN2
IN3
I²S
I²S
I²S
ZV
CAPS
MICS
DACS
ASRC
Figure 9. Digital Signal Path Overview
DAC
VOL
VOL
VOL
VOL
Signal Processing Engine
VOL
ADC
mux out
3.1
Analog centric mode is detailed in Figure 10 on
page 18. In this mode, all the digital sources are
pre-mixed in the digital mixer and sent to the
DACs. The DAC outputs are mixed with the analog
sources in the analog mixer. The ADCs send cap-
tured data directly to the host. The ADC mux is
used to select a single source or the output of the in-
put mixer for capture. In the analog centric mode,
effects processing is only available on digital
sources.
Σ
VOL
MIXER
Analog Centric Mode
mic out
½ ADC
EFX
DIG
DDM
SDOS
SPDS
Σ
VOL
VOL
MONO_OUT
LINE_OUT
CS4205
DS489PP4
S/PDIF
OUT1
OUT2
OUT
I²S
I²S
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