CDB53L21 Cirrus Logic Inc, CDB53L21 Datasheet - Page 24

• Manufacturer Part Number: CDB53L21
• Description: BOARD EVAL FOR CS53L21 ADC
• Manufacturer: Cirrus Logic Inc

Specifications of CDB53L21

• Number Of Adc's: 2
• Number Of Bits: 24
• Sampling Rate (per Second): 96k
• Data Interface: Serial
• Inputs Per Adc: 3 Single Ended
• Input Range: ±2.5 V
• Power (typ) @ Conditions: 22.45mW @ 48kSPS, 2.5 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -10°C ~ 70°C
• Utilized Ic / Part: CS53L21
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1550

24
The MICBIAS series resistor must be selected based on the requirements of the particular microphone
used. The MICBIAS output pin is selected using the MICBIAS_SEL bit.
Software
Controls:
“Interface Control (Address 04h)” on page
//
//
Figure 8. MIC Input Mix w/Common Mode Rejection
2.15 V
0.35 V
2.15 V
0.35 V
1.25 V
1.25 V
Full-Scale Differential Input Level (MICMIX=1)
fc
= (AINxA - AINxB) = 3.6 V
=
---------------------------------------------- -
2π 50 kΩ
Figure 9. Differential Input
(
+
1
PP
+
= 1.27 V
MICIN1
) 1 μF
MICIN2
(
RMS
17
18
43,
)
“MIC Control (Address 05h)” on page
=
3.18 Hz
Σ
AINxB
AINxA
MICBIAS
VA
2.5 V
20
44.
CS53L21
DS700PP1