cs4223 Cirrus Logic, Inc., cs4223 Datasheet - Page 21

• Manufacturer Part Number: cs4223
• Description: 24-bit, 105 Db Codecs With Volume Control
• Manufacturer: Cirrus Logic, Inc.

DS290F1
SDIN
DIF0, DIF1
DEM0, DEM1
VL
AINR-, AINR+
AINL-, AINL+
VA
AGND
AOUTR-,
AOUTR+
AOUTL-,
AOUTL+
RST
23, 24
25, 26
12,18
16,17
19,20
10,11
13
21
22
27
9
Serial Data Input (Input) - Two's complement MSB-first serial data is input 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.
Digital Interface Format (Input) - The required relationship between the left/right clock, serial
clock and serial data is defined by the Digital Interface Format. The options are detailed in Fig-
ures 8 - 11.
De-Emphasis Select (Input) - Controls the activation of the standard 50/15 µs de-emphasis
filter. 32, 44.1, or 48 kHz sample rate selection defined in Table 4.
Digital Logic Power (Input) - Positive power supply for the digital interface section. Typically
3.0 to 5.0 VDC.
Differential Right Channel Analog Input (Input) - The full scale analog input level (differen-
tial) is specified in the Analog Characteristics specification table and may be AC coupled or DC
coupled into the device, see Figure 12 for optional line input buffer.
Differential Left Channel Analog Input (Input) - The full scale analog input level (differential)
is specified in the Analog Characteristics specification table and may be AC coupled or DC
coupled into the device, see Figure 12 for optional line input buffer.
Analog Power (Input) - Positive power supply for the analog section. Nominally +5 Volts.
Analog Ground (Input) - Analog ground reference.
Differential Right Channel Analog Output (Output) - The full scale analog output level (dif-
ferential) is specified in the Analog Characteristics specification table.
Differential Left Channel Analog Output (Output) - The full scale analog output level (differ-
ential) is specified in the Analog Characteristics specification table.
Reset (Input) - When low, the device enters a low power mode and all internal registers are
reset, including the control port. When high, the control port becomes operational and normal
operation will occur.
DEM0
DIF1
Table 4. De-emphasis Control
0
0
1
1
0
0
1
1
DIF0
DEM1
0
1
0
1
0
1
0
1
Table 3. Digital Interface Format - DIF1 and DIF0
I
Left Justified, up to 24-bit data
Right Justified, 24-bit Data
Right Justified, 20-bit Data
2
S, up to 24-bit data
De-Emphasis
44.1 kHz
Disabled
32 kHz
48 kHz
DESCRIPTION
FORMAT
0
1
2
3
CS4223 CS4224
FIGURE
10
11
8
9
21