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PDF CS4364 Data sheet ( Hoja de datos )
| Número de pieza | CS4364 | |
| Descripción | 192 kHz 6-Channel D/A Converter | |
| Fabricantes | Cirrus Logic | |
| Logotipo |  |
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CS4364
103 dB, 192 kHz 6-Channel D/A Converter
Features
Advanced Multi-bit Delta Sigma Architecture
24-bit Conversion
Automatic Detection of Sample Rates up to
192 kHz
103 dB Dynamic Range
-88 dB THD+N
Single-Ended Output Architecture
Direct Stream Digital® (DSD™) Mode
– Non-Decimating Volume Control
– On-Chip 50 kHz Filter
– Matched PCM and DSD Analog Output
Levels
Selectable Digital Filters
Volume Control with 1/2-dB Step Size and Soft
Ramp
Low Clock-Jitter Sensitivity
+5 V Analog Supply, +2.5 V Digital Supply
Separate 1.8 to 5 V Logic Supplies for the
Control and Serial Ports
Description
The CS4364 is a complete 6-channel digital-to-analog
system. This D/A system includes digital de-emphasis,
half-dB step size volume control, ATAPI channel mix-
ing, selectable fast and slow digital interpolation filters
followed by an oversampled, multi-bit delta sigma mod-
ulator which includes mismatch shaping technology that
eliminates distortion due to capacitor mismatch. Follow-
ing this stage is a multi-element switched capacitor
stage and low-pass filter with single-ended analog
outputs.
The CS4364 also has a proprietary DSD processor
which allows for volume control and 50 kHz on-chip fil-
tering without an intermediate decimation stage. It also
offers an optional path for direct DSD conversion by di-
rectly using the multi-element switched capacitor array.
The CS4364 accepts PCM data at sample rates from
4 kHz to 216 kHz, DSD audio data, and delivers excel-
lent sound quality. These features are ideal for multi-
channel audio systems including SACD players, A/V re-
ceivers, digital TV’s, mixing consoles, effects
processors, and sound cards.
This product is available in 48-pin LQFP package in
Commercial (-40°C to +85°C) temperature grade. See
“Ordering Information” on page 49 for complete details.
Control Port Supply = 1.8 V to 5 V
Digital Supply = 2.5 V
Analog Supply = 5 V
Hardware Mode or
I2C/SPI Software Mode
Control Data
Reset
Serial Audio Port
Supply = 1.8 V to 5 V
PCM Serial
Audio Input
DSD Audio
Input
Register/Hardware
Configuration
Internal Voltage
Reference
Volume
6 Controls
Digital
Filters
Multi-bit ∆Σ
Modulators
Switch-Cap
DAC and
Analog Filters
Six Channels of
Single-Ended
6 Outputs
DSD Processor
-Volume control
-50 kHz filter
External Mute
Control
6
Mute Signals
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2008
(All Rights Reserved)
MAY '08
DS619F1
1 page  
CS4364
LIST OF TABLES
Table 1. Single-Speed Mode Standard Frequencies ................................................................................ 20
Table 2. Double-Speed Mode Standard Frequencies............................................................................... 20
Table 3. Quad-Speed Mode Standard Frequencies ................................................................................. 20
Table 4. PCM Digital Interface Format, Hardware Mode Options............................................................. 21
Table 5. Mode Selection, Hardware Mode Options .................................................................................. 21
Table 6. Direct Stream Digital (DSD), Hardware Mode Options ............................................................... 21
Table 7. Digital Interface Formats - PCM Mode........................................................................................ 35
Table 8. Digital Interface Formats - DSD Mode ........................................................................................ 35
Table 9. ATAPI Decode ............................................................................................................................ 41
Table 10. Example Digital Volume Settings .............................................................................................. 42
DS619F1
5
5 Page 
CS4364
COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE
The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the desired sam-
ple rate by multiplying the given characteristic by Fs.
(See (Note 12))
Fast Roll-Off
Parameter
Min Typ
Combined Digital and On-chip Analog Filter Response - Single-Speed Mode - 48 kHz
Passband (Note 9)
to -0.01 dB corner
0
-
to -3 dB corner
0
-
Frequency Response
10 Hz to 20 kHz -0.01
-
StopBand
0.547
-
StopBand Attenuation
(Note 10)
102
-
Group Delay
- 10.4/Fs
De-emphasis Error (Note 11)
Fs = 32 kHz
-
-
(Relative to 1 kHz)
Fs = 44.1 kHz
-
-
Fs = 48 kHz
-
-
Combined Digital and On-chip Analog Filter Response - Double-Speed Mode - 96 kHz
Passband (Note 9)
to -0.01 dB corner
0
-
to -3 dB corner
0
-
Frequency Response
10 Hz to 20 kHz -0.01
-
StopBand
.583 -
StopBand Attenuation
(Note 10)
80
-
Group Delay
- 6.15/Fs
Combined Digital and On-chip Analog Filter Response - Quad-Speed Mode - 192 kHz
Passband (Note 9)
to -0.01 dB corner
0
-
to -3 dB corner
0
-
Frequency Response
10 Hz to 20 kHz -0.01
-
StopBand
.635 -
StopBand Attenuation
(Note 10)
90
-
Group Delay
- 7.1/Fs
Max
.454
.499
+0.01
-
-
-
±0.36
±0.21
±0.14
.430
.499
+0.01
-
-
-
.105
.490
+0.01
-
-
-
Unit
Fs
Fs
dB
Fs
dB
s
dB
dB
dB
Fs
Fs
dB
Fs
dB
s
Fs
Fs
dB
Fs
dB
s
Notes:
8. Slow Roll-off interpolation filter is only available in Software Mode.
9. Response is clock dependent and will scale with Fs.
10. For Single-Speed Mode, the Measurement Bandwidth is from stopband to 3 Fs.
For Double-Speed Mode, the Measurement Bandwidth is from stopband to 3 Fs.
For Quad-Speed Mode, the Measurement Bandwidth is from stopband to 1.34 Fs.
11. De-emphasis is available only in Single-Speed Mode; Only 44.1 kHz De-emphasis is available in Hardware
Mode.
12. Amplitude vs. Frequency plots of this data are available in the “Filter Response Plots” on page 43.
DS619F1
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CS4364.PDF ] | |
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