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PDF CS42406 Data sheet ( Hoja de datos )
| Número de pieza | CS42406 | |
| Descripción | Surround-sound Codecs | |
| Fabricantes | Cirrus Logic | |
| Logotipo |  |
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CS42406
24-Bit, 192 kHz 2-In 6-Out Audio CODEC
D/A Features
24-Bit Conversion
102 dB Dynamic Range at 5 V
-91 dB THD+N
Digital Volume Control with Soft Ramp
– 119 dB Attenuation
– 1 dB Step Size
– Zero Crossing Click-Free Transitions
I²C & SPI™ Host Control Port
ATAPI Mixing
Low Clock Jitter Sensitivity
Popguard Technology® for Control of Clicks
and Pops
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A/D Features
24-Bit Conversion
105 dB Dynamic Range at 5 V
-98 dB THD+N
Advanced Multi-Bit Delta-Sigma
Architecture
High Pass Filter to Remove DC Offsets
Auto-Mode Selection
System Features
Direct interface with 5 V to 1.8 V logic levels
Supports Independent, Synchronous
ADC/DAC Sample Rates
Operation as Clock Master or Slave
Supports all Audio Sample Rates Including
192 kHz
Single-Ended Inputs/Outputs
Analog/Digital Core Supplies From 3.3 V to
5V
VLC = 1.8 V to 5 V
VD = 3.3 V to 5 V
VA = 3.3 V to 5 V
Hardware or
I2C/SPI
Control Data
PDN/Reset
VLS
1.8 V to 5 V
Serial Audio
Input/Output
Register / Hardware
Configuration
Volume
Controls
Internal Voltage
Reference
External
Mute Control
Mute
Controls
Interpolation
Filters
∆Σ
Modulators
Switched
Capacitor DACs
and Filters
Analog
Outputs
High Pass Filter
High Pass Filter
Anti-Alias Filter
Anti-Alias Filter
Multibit
Oversampling
ADC
Multibit
Oversampling
ADC
Left Input
Right Input
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
http://www.cirrus.com
©Copyright Cirrus Logic, Inc. 2004
(All Rights Reserved)
DEC ‘04
DS614PP5
1
1 page  
CS42406
Figure 34.
Figure 35.
Figure 36.
Figure 37.
Figure 38.
Figure 39.
Figure 40.
Figure 41.
ADC Serial Port, Master Mode Clocking ...................................................................... 31
De-Emphasis Curve ..................................................................................................... 32
CS42406 Recommended Analog Input Buffer ............................................................. 33
CS42406 ADC: THD+N versus Frequency .................................................................. 33
I²C Write ....................................................................................................................... 36
I²C Read ....................................................................................................................... 37
SPI Write ...................................................................................................................... 37
ATAPI Block Diagram .................................................................................................. 41
LIST OF TABLES
Table 1. ADC Speed Modes and the Associated Output Sample Rates (Fs) for 256x Mode .......... 29
Table 2. ADC Speed Modes and the Associated Output Sample Rates (Fs) for 384x Mode .......... 29
Table 3. CS42406 Stand Alone DAC Operational Modes ................................................................ 30
Table 4. CS42406 Control Port DAC Operational Modes ................................................................ 30
Table 5. CS42406 ADC Serial Port Mode Control ........................................................................... 30
Table 6. DAC Digital Interface Format - Stand Alone Mode............................................................. 32
Table 7. Digital Interface Formats - Control Port Mode.................................................................... 39
Table 8. ATAPI Decode.................................................................................................................... 41
Table 9. Example Digital Volume Settings ....................................................................................... 42
Table 10. Revision History ............................................................................................................... 47
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5 Page 
CS42406
DAC FILTER RESPONSE The filter characteristics and the X-axis of the response plots have been nor-
malized to the input sample rate (Fs) and can be referenced to the desired sample rate by multiplying the given char-
acteristic by Fs.
Parameter
Min
Single-Speed Mode - (4 kHz to 50 kHz sample rates)
Passband
to -0.05 dB corner
to -3 dB corner
0
0
Passband Ripple
-0.02
StopBand
0.5465
StopBand Attenuation
(Note 10) 50
Group Delay
-
De-emphasis Error (Relative to 1 kHz)
Control Port Mode
(Note 11)
Fs = 32 kHz
Fs = 44.1 kHz
Fs = 48 kHz
-
-
-
Typ
-
-
-
-
-
9/Fs
-
-
-
Max Unit
0.4535
0.4998
+0.035
-
-
-
Fs
Fs
dB
Fs
dB
s
+0.2/-0.1
+0.05/-0.14
+0/-0.22
dB
dB
dB
Stand-Alone Mode
Fs = 32 kHz
Fs = 44.1 kHz
Fs = 48 kHz
Double-Speed Mode - (50 kHz to 100 kHz sample rates)
Passband
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to -0.1 dB corner
to -3 dB corner
Passband Ripple
StopBand
StopBand Attenuation
(Note 10)
Group Delay
Quad-Speed Mode - (100 kHz to 200 kHz sample rates)
Passband
to -3 dB corner
Passband Ripple
Group Delay
-
-
-
0
0
-0.1
0.577
55
-
0
-0.7
-
- +1.5/-0 dB
- +0.05/-0.14 dB
- +0.2/-0.4 dB
-
-
-
-
-
4/Fs
0.4621
0.4982
0
-
-
-
Fs
Fs
dB
Fs
dB
s
-
-
1.5/Fs
0.25 Fs
0 dB
-s
Notes: 10. For Single-Speed Mode, the measurement bandwidth is 0.5465 Fs to 3 Fs.
For Double-Speed Mode, the measurement bandwidth is 0.577 Fs to 1.4 Fs.
11. De-emphasis is only available in Single-Speed Mode.
11
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