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PDF CS4349 Data sheet ( Hoja de datos )
| Número de pieza | CS4349 | |
| Descripción | 192 kHz DAC | |
| Fabricantes | Cirrus Logic | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CS4349 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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CS4349
192-kHz DAC with Volume Control and 1 Vrms @ 3.3 V
Features
Advanced multibit delta–sigma architecture
101 dB dynamic range
-91 dB THD+N at 5.0 V
-84 dB THD+N at 3.3 V
24-bit conversion
Supports audio sample rates up to 192 kHz
Low-latency digital filtering
Single-ended analog output architecture
Automatic sample-rate range detection
Popguard® technology for control of clicks and
pops
– Hardware Popguard disable for fast
startups
Supports all standard serial audio formats
including time-division multiplexed (TDM)
+3.3 V or +5.0 V analog supply
+1.5 V to +5.0 V logic supplies for serial port
+3.3 V to +5.0 V control port interface
Control Port Mode Features
SPI™ and I²C™ Modes
ATAPI mixing
Mute control for individual channels
Digital volume control with soft ramp
– 127.5 dB attenuation
– 1/2 dB step size
– Zero-crossing click-free transitions
3.3 V to 5 V
Hardware or I2C/
SPI Control Data
Reset
3.3 V to 5 V
Register/
Hardware
Configuration
Interpolation
Filter with
Volume
Control
Multibit
Modulator
DAC
Amp
+
Filter
Left
Channel
Output
1.5 V to 5 V
Serial Audio Input
PCM
Serial
Interface
Interpolation
Filter with
Volume
Control
Multibit
Modulator
DAC
Internal Voltage
Reference
and Regulation
Amp
+
Filter
Right
Channel
Output
External
Mute
Control
Left and
Right Mute
Controls
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2013
(All Rights Reserved)
APR ‘13
DS782F2
1 page  
CS4349
LIST OF FIGURES
Figure 1. Output Test Load ........................................................................................................................ 11
Figure 2. Maximum Loading....................................................................................................................... 11
Figure 3. THD+N vs Output Amplitude for VA = 5.0 V ............................................................................... 11
Figure 4. THD+N vs Output Amplitude for VA = 3.3 V ............................................................................... 11
Figure 5. THD+N vs Output Amplitude for VA = 3.14 V ............................................................................. 11
Figure 6. Serial Port Timing, Non-TDM Mode............................................................................................ 14
Figure 7. Serial Port Timing, TDM Mode.................................................................................................... 14
Figure 8. Control Port Timing - I²C Format................................................................................................. 14
Figure 9. Control Port Timing - SPI Mode .................................................................................................. 15
Figure 10. Typical Connection Diagram..................................................................................................... 17
Figure 11. Left-Justified up to 24-Bit Data.................................................................................................. 19
Figure 12. I²S, up to 24-Bit Data ................................................................................................................ 19
Figure 13. Right-Justified Data................................................................................................................... 19
Figure 14. TDM Mode Connection Diagram .............................................................................................. 20
Figure 15. TDM Mode Timing .................................................................................................................... 20
Figure 16. De-Emphasis Curve.................................................................................................................. 21
Figure 17. Passive Single-Ended Output Filter .......................................................................................... 23
Figure 18. Control Port Timing, I²C Mode .................................................................................................. 26
Figure 19. Control Port Timing, SPI Mode ................................................................................................. 27
Figure 20. De-Emphasis Curve.................................................................................................................. 30
Figure 21. ATAPI Block Diagram ............................................................................................................... 31
Figure 22. Stopband Rejection (Fast), all Modes....................................................................................... 36
Figure 23. Stopband Rejection (Slow), all Modes ...................................................................................... 36
Figure 24. Single-Speed (Fast) Passband Detail....................................................................................... 36
Figure 25. Single-Speed (Slow) Passband Detail ...................................................................................... 36
Figure 26. Double-Speed (Fast) Passband Detail ..................................................................................... 36
Figure 27. Double-Speed (Slow) Passband Detail..................................................................................... 36
Figure 28. Quad-Speed (Fast) Passband Detail ........................................................................................ 37
Figure 29. Quad-Speed (Slow) Passband Detail ....................................................................................... 37
LIST OF TABLES
Table 1. Pin Description ............................................................................................................................... 6
Table 2. Recommended Operating Conditions ............................................................................................ 8
Table 3. Absolute Maximum Ratings ........................................................................................................... 8
Table 4. DAC Analog Characteristics - Commercial (-CZZ)......................................................................... 9
Table 5. DAC Analog Characteristics - Automotive (-DZZ)........................................................................ 10
Table 6. Combined Interpolation and On-Chip Analog Filter Response .................................................... 12
Table 7. Switching Specifications - Serial Audio Interface ......................................................................... 13
Table 8. Switching Characteristics - Control Port - I²C Format .................................................................. 14
Table 9. Switching Characteristics - Control Port - SPI Format ................................................................. 15
Table 10. Digital Characteristics ................................................................................................................ 16
Table 11. Power and Thermal Characteristics ........................................................................................... 16
Table 12. CS4349 Auto-Detect .................................................................................................................. 18
Table 13. Digital Interface Format - Stand-Alone Mode............................................................................. 24
Table 14. Digital Interface Formats ............................................................................................................ 29
Table 15. ATAPI Decode ........................................................................................................................... 31
Table 16. Example Digital Volume Settings ............................................................................................... 33
Table 17. Thermal Characteristics ............................................................................................................. 38
DS782F2
5
5 Page 
CS4349
125
CS4349
AOUTx +
3.3 µF
+
Analog
Output
RL CL
GND
Figure 1. Output Test Load
100
75
50
Safe Operating
Region
25
2.5 5
10 15
3 Resistive Load -- RL (k )
Figure 2. Maximum Loading
20
Figures 3 through 5 show typical THD+N performance for CS4349 devices that exhibit the maximum full
scale output voltages as specified in the DAC Analog Characteristics tables (see page 9 and 10). With
decreasing VA, THD+N performance is increasingly affected by the full scale output voltage and
temperature, with higher full scale output voltage and lower temperatures corresponding to lower THD+N
performance.
-30
TA = -40° C
TA = 25° C
-40 TA = 85° C
-50
-60
-70
-80
-90
-1000 -0.5 -1 -1.5 -2 -2.5 -3
Output Amplitude(dB)
Figure 3. THD+N vs Output Amplitude for VA = 5.0 V
-30
TA = -40° C
TA = 25° C
-40 TA = 85° C
-50
-60
-70
-80
-90
-1000 -0.5 -1 -1.5 -2 -2.5 -3
Output Amplitude(dB)
Figure 5. THD+N vs Output Amplitude for VA = 3.14 V
DS782F2
-30
TA = -40° C
TA = 25° C
-40 TA = 85° C
-50
-60
-70
-80
-90
-1000 -0.5 -1 -1.5 -2 -2.5 -3
Output Amplitude(dB)
Figure 4. THD+N vs Output Amplitude for VA = 3.3 V
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CS4349.PDF ] | |
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