CDB42438 Cirrus Logic Inc, CDB42438 Datasheet - Page 28

• Manufacturer Part Number: CDB42438
• Description: Eval Bd 108dB 6&8ch Multi-Chnl CODECs
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42438

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42438
• Primary Attributes: 6 Single-Ended and 2 Differential Analog Inputs and 8 Outputs, S/PDIF Transmitter and Receiver
• Secondary Attributes: Graphic User Interface
• Description/function: Audio CODECs
• Operating Supply Voltage: 5 V to 12 V
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: CS42438
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant, Contains lead / RoHS non-compliant
• Other names: 598-1500

28
5.2.2
ADC3 Analog Input
ADC3 accommodates differential as well as single-ended inputs. In Single-Ended Mode, an internal MUX
selects from up to four single-ended inputs.
3.9 V
1.1 V
3.9 V
1.1 V
AIN6B
AIN5B
AIN6A
AIN5A
2.5 V
2.5 V
AIN5+/-
AIN6+/-
Single-Ended Input Filter
Single-Ended Input Filter
(AINx+) - (AINx-) = 5.6 V
Single-Ended Input Filter
Single-Ended Input Filter
Full-Scale Differential Input Level =
Figure 10. ADC3 Input Topology
Differential
Input Filter
Differential
Input Filter
Figure 9. Full-Scale Input
PP
= 1.98 V
50
49
52
51
RMS
1
0
1
0
VQ
VQ
AIN5_MUX
AIN6_MUX
AINx-
AINx+
ADC3
1
0
0
1
1
0
0
1
ADC3 SINGLE
+
+
-
-
AIN5
AIN6
VA
5.0 V
CS42438
DS646F2