CDB-43L21 Cirrus Logic Inc, CDB-43L21 Datasheet - Page 9

• Manufacturer Part Number: CDB-43L21
• Description: EVAL BOARD FOR CS43L21
• Manufacturer: Cirrus Logic Inc

Specifications of CDB-43L21

• Number Of Dac's: 2
• Number Of Bits: 24
• Outputs And Type: 2, Single Ended
• Sampling Rate (per Second): 96k
• Data Interface: I²C, SPI™
• Dac Type: Voltage
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -10°C ~ 70°C
• Utilized Ic / Part: CS43L21
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 598-1282; CDB-43L21

DS723A1
2. TYPICAL CONNECTION DIAGRAMS
+1.8 V, +2.5 V
or +3.3 V
Note 4 :
Larger capacitors, such as 1.5 µF, improves the charge
pump performance (and subsequent THD+N) at the full
scale output power achieved with gain (G) settings
greater than default.
* *Use low ESR ceramic capacitors.
+1.8 V or +2.5 V
Note 1:
Resistors are required for I²C
control port operation
Digital Audio
Processor
See Note 1
See Note 4
1.5 µF
1.5 µF
2 k
Ω
**
**
1 µF
1 µF
1 µF
2 k
Figure 1. Typical Connection Diagram (Software Mode)
Ω
0.1 µF
**
**
0.1 µF
FLYN
GND_HP
FLYP
VSS_HP
MCLK
SCLK
LRCK
SDIN
RESET
SCL/CCLK
SDA/CDIN
AD0/CS
VL
VD
CS43L21
DGND
VA
0.1 µF
VA_HP
AOUTA
AOUTB
AGND
FILT+
VQ
0.1 µF
0.022 µF
51.1 Ω
This circuitry is intended for applications where the
CS43L21 connects directly to an unbalanced output of the
device. For internal routing applications please see the
DAC Analog Output Characteristics section for loading
limitations.
Note 2 :
For best response to Fs/2 :
1 µF
See Note 3
C
1 µF
=
470
470
Note 3:
Series resistance in the path of the power supplies must
be avoided. Any voltage drop on VA_HP will directly
impact the negative charge pump supply (VSS_HP) and
result in clipping on the audio output .
4
π
Fs
Ω
Ω
R
ext
(
R
C
C
+
ext
1 µF
+1.8 V or +2.5 V
470
×
470
Speaker Driver
Line Level Out
Left & Right
See Note 2
)
Headphone Out
Left & Right
CS43L21
R
R
ext
ext
9