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CDB42L55
Cirrus Logic CDB42L55 Manuals
Manuals and User Guides for Cirrus Logic CDB42L55. We have
1
Cirrus Logic CDB42L55 manual available for free PDF download: Manual
Cirrus Logic CDB42L55 Manual (36 pages)
For CS42L55
Brand:
Cirrus Logic
| Category:
Motherboard
| Size: 2 MB
Table of Contents
Table of Contents
2
1 Quick Start Guide
4
Figure 1.Quick Start Board Layout
4
2 System Overview
5
Control Port and Board Configuration
5
Power
5
Digital Input
5
CS8416 S/PDIF Digital Audio Receiver
5
CS8421 Sample Rate Converter (Tx SRC to CS42L55)
6
Digital Output
6
CS8406 S/PDIF Digital Audio Transmitter
6
CS8421 Sample Rate Converter (Rx SRC from CS42L55)
6
Fpga
6
Oscillator
7
CS42L55 Audio CODEC
7
3 Configuration Options
8
S/PDIF or PSIA in to Analog out
8
Figure 2.S/PDIF or PSIA in to Analog out
8
Analog in to S/PDIF or PSIA out
9
Figure 3.Analog in to S/PDIF or PSIA out
9
4 Software Mode Control
10
Board Configuration Tab
11
Figure 4.Board Configuration Tab
11
CODEC Configuration Tab
12
Figure 5.CODEC Configuration Tab
12
Analog Input Volume Tab
13
Figure 6.ADC Input Channel Volume Tab
13
DSP Engine Tab
14
Figure 7.DSP Engine Tab
14
Analog Output Volume Tab
15
Figure 8.Analog Output Volume Tab
15
Register Maps Tab
16
Figure 9.Register Maps Tab - CS42L55
16
5 System Connections and Jumpers
17
Table 1. System Connections
17
Table 2. Jumper Settings
18
6 Performance Plots
19
Figure 10.THD+N Vs Freq. - Analog in to Digital out
19
Figure 11.THD+N Vs Amplitude - Analog in to Digital out
19
Figure 12.FFT - Analog in to Digital out @ -1 Dbfs
19
Figure 13.FFT - Analog in to Digital out @ -60 Dbfs
19
Figure 14.FFT - Analog in to Digital out - no Input
20
Figure 15.FFT Crosstalk - Analog in to Digital out @ -1 Dbfs
20
Figure 16.Freq. Response - Analog in to Digital out
20
Figure 17.Fade-To-Noise Linearity - Analog in to Digital out
20
Figure 18.THD+N Vs Freq. - Digital in to HP out
20
Figure 19.THD+N Vs Amplitude - Digital in to HP out
20
Figure 20.THD+N Vs Volume - Digital in to HP out
21
Figure 21.FFT - Digital in to HP out @ 0 Dbfs
21
Figure 22.FFT - Digital in to HP out @ -60 Dbfs
21
Figure 23.FFT - Digital in to HP out - no Input
21
Figure 24.Freq. Response - Digital in to HP out
21
Figure 25.Fade-To-Noise Linearity- Digital in to HP out
21
Figure 26.FFT Crosstalk - Digital in to HP out @ 0 Dbfs
22
Figure 27.THD+N Vs Freq. - Digital in to Line out
22
Figure 28.THD+N Vs Amplitude - Digital in to Line out
22
Figure 29.THD+N Vs Volume - Digital in to Line out
22
Figure 30.FFT - Digital in to Line out @ 0 Dbfs
22
Figure 31.FFT - Digital in to Line out @ -60 Dbfs
22
Figure 32.FFT - Digital in to Line out - no Input
23
Figure 33.FFT Crosstalk - Digital in to Line out @ 0 Dbfs
23
Figure 34.Freq. Response - Digital in to Line out
23
Figure 35.Fade-To-Noise Linearity- Digital in to Line out
23
7 Cdb42L55 Block Diagram
24
Figure 36.Block Diagram
24
8 Cdb42L55 Schematics
25
Figure 37.CS42L55 & Analog I/O (Schematic Sheet 1)
25
Figure 38.S/PDIF & Digital Interface (Schematic Sheet 2)
26
Figure 39.PLL, Oscillator and External I/O Connections (Schematic Sheet 3)
27
Figure 40.Microcontroller and FPGA (Schematic Sheet 4)
28
Figure 41.Power (Schematic Sheet 5)
29
9 Cdb42L55 Layout
30
Figure 42.Silk Screen
30
Figure 43.Top-Side Layer
31
Figure 44.GND (Layer 2)
32
Figure 45.Power (Layer 3)
33
Figure 46.Bottom Side Layer
34
10 Revision History
35
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