CDB-43L21 Cirrus Logic Inc, CDB-43L21 Datasheet - Page 54

• 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

54
7. ANALOG PERFORMANCE PLOTS
7.1
B
A
d
r
B
A
d
r
-100
-100
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
0
0
VA_HP = VA = 1.8 V
VA_HP = VA = 2.5 V
Headphone THD+N versus Output Power Plots
Test conditions (unless otherwise specified): Input test signal is a 997 Hz sine wave; measurement band-
width is 10 Hz to 20 kHz; Fs = 48 kHz. Plots were taken from the CDB43L21 using an Audio Precision an-
alyzer.
10m
10m
20m
20m
Figure 21. THD+N vs. Output Power per Channel at 1.8 V (16 Ω load)
Figure 22. THD+N vs. Output Power per Channel at 2.5 V (16 Ω load)
30m
30m
40m
40m
W
W
50m
50m
60m
60m
70m
70m
80m
80m
NOTE: Graph shows the out-
put power per channel (i.e.
Output Power = 23 mW into
single 16 Ω and 46 mW into
stereo 16 Ω with THD+N = -
75 dB).
NOTE: Graph shows the out-
put power per channel (i.e.
Output Power = 44 mW into
single 16 Ω and 88 mW into
stereo 16 Ω with THD+N = -
75 dB).
Legend
Legend
G = 0.6047
G = 0.7099
G = 0.8399
G = 1.0000
G = 1.1430
G = 0.6047
G = 0.7099
G = 0.8399
G = 1.0000
G = 1.1430
CS43L21
DS723A1