CS42L51-DNZR Cirrus Logic Inc, CS42L51-DNZR Datasheet - Page 78

• Manufacturer Part Number: CS42L51-DNZR
• Description: IC LV Stereo Codec F/Digital Audio Apps
• Manufacturer: Cirrus Logic Inc
• Type: Stereo Audior

Specifications of CS42L51-DNZR

• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 98 / 98
• Voltage - Supply, Analog: 1.8V, 2.5V
• Voltage - Supply, Digital: 1.8V, 2.5V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1005 - BOARD EVAL FOR CS42L51 CODEC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

78
7.3
B
S
d
F
-100
-60
-64
-68
-72
-76
-80
-84
-88
-92
-96
20
ADC_FILT+ Capacitor Effects on THD+N
The value of the capacitor on the ADC_FILT+ pin, 16, affects the low frequency total harmonic distortion +
noise (THD+N) performance of the ADC. Larger capacitor values yield significant improvement in THD+N
at low frequencies.
en from the CDB42L51 using an Audio Precision analyzer.
50
100
200
Figure 33
Figure 33. ADC THD+N vs. Frequency w/Capacitor Effects
500
shows the THD+N versus frequency for the ADC analog input. Plots were tak-
Hz
1k
2k
5k
10k
20k
Legend –
Capacitor Value on ADC_FILT+
1 µF
10 µF
22 µF
CS42L51
DS679F1