CDB42438 Cirrus Logic Inc, CDB42438 Datasheet - Page 48

• 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

48
7.10
7.10.1 Invert Signal Polarity (INV_AOUTX)
7.11
7.11.1 AINX Volume Control (AINX_VOL[7:0])
INV_AOUT8
AINx_VOL7
7
7
DAC Channel Invert (Address 10h)
AINX Volume Control (Address 11h-16h)
Default = 0
0 - Disabled
1 - Enabled
Function:
When enabled, these bits will invert the signal polarity of their respective channels.
Default = 00h
Function:
The level of AIN1 - AIN6 can be adjusted in 0.5 dB increments as dictated by the ADC Soft and Zero Cross
bits (ADC_SZC[1:0]) from +24 to -64 dB. Levels are decoded in two’s complement, as shown in
INV_AOUT7
AINx_VOL6
6
6
INV_AOUT6
AINx_VOL5
5
5
Table 9. Example AIN Volume Settings
Binary Code
0000 0000
1000 0000
0011 0000
0111 1111
1111 1110
1111 1111
···
···
···
INV_AOUT5
AINx_VOL4
4
4
INV_AOUT4
AINx_VOL3
Volume Setting
3
3
-0.5 dB
+24 dB
+24 dB
-64 dB
-1 dB
0 dB
···
···
···
INV_AOUT3
AINx_VOL2
2
2
INV_AOUT2
AINx_VOL1
1
1
CS42438
INV_AOUT1
AINx_VOL0
DS646F2
Table
0
0
9.