CS4223-BS Cirrus Logic Inc, CS4223-BS Datasheet - Page 20

• Manufacturer Part Number: CS4223-BS
• Description: Audio CODECs 24-Bit 105dB Ster Cod w/o Vol. Con.
• Manufacturer: Cirrus Logic Inc

Specifications of CS4223-BS

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6. PIN DESCRIPTIONS — CS4223
20
NC
XTI, XTO
LRCK
SCLK
VD
DGND
SDOUT
1,14,15, 28 No Connect - These pins are not connected internally and should be tied to DGND to mini-
2,3
4
5
6
7
8
mize noise coupling.
Crystal Connections (Input/Output) - Input and output connections for the crystal used to
clock the CS4223. Alternatively, a clock may be input into XTI. This is the clock source for the
delta-sigma modulator and digital filters. The frequency of this clock must be either 256x, 384x,
or 512x Fs in Slave Mode and 256x in Master Mode.
Left/Right Clock (Input) - Determines which channel is currently being input/output of the
serial audio data pins SDIN/SDOUT. The frequency of the Left/Right clock must be equal to the
input sample rate. Although the outputs for each ADC channel are transmitted at different
times, Left/Right pairs represent simultaneously sampled analog inputs. The required relation-
ship between the left/right clock, serial clock and serial data is defined by the DIF1-0 pins. The
options are detailed in Figures 8 - 11.
Serial Data Clock (Input) - Clocks the individual bits of the serial data into the SDIN pin and
out of the SDOUT pin. The required relationship between the left/right clock, serial clock and
serial data is defined by the DIF1-0 pins. The options are detailed in Figures 8 - 11.
Digital Power (Input) - Positive power supply for the digital section. Typically 5.0 VDC.
Digital Ground (Input) - Digital ground for the digital section.
Serial Data Output (Output) - Two's complement MSB-first serial data is output on this pin.
The required relationship between the left/right clock, serial clock and serial data is defined by
the DIF1-0 pins. The options are detailed in Figures 8 - 11.
Fs (kHz)
44.1
32
48
SDOUT
DGND
LRCK
DEM0
SCLK
SDIN
DIF1
DIF0
XTO
XTI
NC
NC
VD
VL
Table 2. Common Clock Frequencies
1
2
3
4
5
6
7
8
9
10
11
12
13
14
12.2880
11.2896
8.1920
CS4223
256x
28
27
26
25
24
23
22
21
20
19
18
17
16
15
NC
RST
AOUTL-
AOUTL+
AOUTR+
AOUTR-
AGND
VA
AINL+
AINL-
DEM1
AINR+
AINR-
NC
XTI (MHz)
12.2880
16.9344
18.4320
384x
16.3840
22.5792
24.5760
512x
CS4223 CS4224
DS290F1