Cirrus-logic CS4341 Manuel d'utilisateur

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Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
http://www.cirrus.com
24-Bit, 96 kHz Stereo DAC with Volume Control
Features
! 101 dB Dynamic Range
! -91 dB THD+N
! +3.0 V or +5.0 V Power Supply
! Low Clock-Jitter Sensitivity
! Filtered Line-Level Outputs
! On-Chip Digital De-Emphasis for 32, 44.1
and 48 kHz
! ATAPI Mixing
! Digital Volume Control with Soft Ramp
– 94 dB Attenuation
– 1 dB Step Size
– Zero Crossing Click-Free Transitions
! Popguard
®
Technology for Control of Clicks
and Pops
! 33 mW with 3.0 V Supply
Description
The CS4341 is a complete stereo digital-to-analog sys-
tem including digital interpolation, fourth-order Delta-
Sigma digital-to-analog conversion, digital de-emphasis
and switched capacitor analog filtering. The advantages
of this architecture include: ideal differential linearity, no
distortion mechanisms due to resistor matching errors,
no linearity drift over time and temperature and a high
tolerance to clock jitter.
The CS4341 accepts data at audio sample rates from
4 kHz to 100 kHz, consumes very little power, and oper-
ates over a wide power supply range. The features of
the CS4341 are ideal for DVD players, CD players, set-
top box and automotive systems.
ORDERING INFORMATION
CS4341-KS 16-pin SOIC, -10 to 70 °C
CS4341-CZZ, Lead Free 16-pin TSSOP, -10 to 70 °C
CDB4341 Evaluation Board
I
Volume ControlInterpolation Filter
∆Σ
DAC
Analog Filter
Control Port
Volume ControlInterpolation Filter Analog Filter
Serial Port
SCL/CCLK MUTECAD0/CS
AOUTA
AOUTB
RST
LRCK
SDATA
MCLK
SDA/CDIN
∆Σ
DAC
External
Mute Control
SCLK
Mixer
÷2
DECEMBER '05
DS298F5
CS4341
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Résumé du contenu

Page 1 - Description

1Copyright © Cirrus Logic, Inc. 2005(All Rights Reserved)http://www.cirrus.com24-Bit, 96 kHz Stereo DAC with Volume ControlFeatures! 101 dB Dynamic Ra

Page 2 - TABLE OF CONTENTS

CS434110 DS298F5SWITCHING SPECIFICATIONS - SERIAL AUDIO INTERFACE Parameters Symbol Min Max UnitsMCLK Frequency 1.024 51.2 MHzMCLK Duty Cycle 45 55 %

Page 3 - LIST OF TABLES

CS4341DS298F5 11SWITCHING CHARACTERISTICS - INTERNAL SERIAL CLOCK Notes: 6. The Duty Cycle must be 50% +/− 1/2 MCLK Period.7. See section 4.2.1 for de

Page 4

CS434112 DS298F5SWITCHING CHARACTERISTICS - CONTROL PORT INTERFACE (I²C®) Notes: 8. Data must be held for sufficient time to bridge the transition tim

Page 5

CS4341DS298F5 13SWITCHING CHARACTERISTICS - CONTROL PORT INTERFACE (SPI™) Notes: 10. tspi only needed before first falling edge of CS after RST risin

Page 6 - Figure 2. Maximum Loading

CS434114 DS298F5DC ELECTRICAL CHARACTERISTICS (AGND = 0 V; all voltages with respect to AGND.) Notes: 13. Normal operation is defined as RST = HI wi

Page 7 - (Note 4) 55 - - dB

CS4341DS298F5 152. PIN DESCRIPTION Pin Name # Pin DescriptionRST1Reset (Input) - Powers down device and resets registers to their default settings.SDA

Page 8

CS434116 DS298F53. TYPICAL CONNECTION DIAGRAM 13Serial AudioDataProcessorExternal ClockMCLKAGNDAOUTBCS4341SDATALRCKVAAOUTA345140.1 µF+1µF12+3.0 V

Page 9 - DS298F5 9

CS4341DS298F5 174. APPLICATIONS4.1 Sample Rate Range/Operational Mode The device operates in one of two operational modes determined by the Master Clo

Page 10

CS434118 DS298F5 4.2.2 External Serial Clock ModeThe device will enter the External Serial Clock Mode whenever 16 low to high transitions are de-tect

Page 11 - *INTERNAL SCLK

CS4341DS298F5 194.4 De-Emphasis The device includes on-chip digital de-emphasis. The Mode Control (address 01h) bits select either the32, 44.1 or 48 k

Page 12 - Repeated

CS43412 DS298F5TABLE OF CONTENTS1. CHARACTERISTICS AND SPECIFICATIONS ...

Page 13

CS434120 DS298F54.6.2 Power-DownTo prevent transients at power-down, the device must first enter its power-down state by enablingRST or setting the PD

Page 14

CS4341DS298F5 214.9.1 Rise Time for Control Port ClockWhen excess capacitive loading is present on the I²C clock line, pin 6 (SCL/CCLK) may not havesu

Page 15 - 2. PIN DESCRIPTION

CS434122 DS298F54.9.3a I²C WriteTo write to the device, follow the procedure below while adhering to the control port SwitchingSpecifications in secti

Page 16 - 16 DS298F5

CS4341DS298F5 234.9.4 SPI ModeIn SPI mode, data is clocked into the serial control data line, CDIN, by the serial control port clock,CCLK (see Figure

Page 17 - 4. APPLICATIONS

CS434124 DS298F55. REGISTER QUICK REFERENCEAddr Function 7 6 5 4 3 2 1 00h MCLK Control Reserved Reserved Reserved Reserved Reserved Reserved MCLKDIV

Page 18 -

CS4341DS298F5 256. REGISTER DESCRIPTIONNOTE: All registers are read/write in I²C Mode and write only in SPI mode, unless otherwise stated.6.1 MCLK CON

Page 19 - 4.4 De-Emphasis

CS434126 DS298F56.2.2 DIGITAL INTERFACE FORMAT (DIF) BIT 4-6 Default = 000 - Format 0 (I²S, up to 24-bit data, 64 x Fs Internal SCLK)Function:The req

Page 20 - 4.9 Control Port Interface

CS4341DS298F5 276.3 TRANSITION AND MIXING CONTROL (ADDRESS 02H)6.3.1 CHANNEL A VOLUME = CHANNEL B VOLUME (A = B) BIT 7 Default = 00 - Disabled1 - Ena

Page 21 - 4.9.3 I²C Mode

CS434128 DS298F56.3.3 ATAPI CHANNEL MIXING AND MUTING (ATAPI) BIT 0-4 Default = 01001 - AOUTA = Left Channel, AOUTB = Right Channel (Stereo)Function:

Page 22 - 4.9.3b I²C Read

CS4341DS298F5 296.4 CHANNEL A VOLUME CONTROL (ADDRESS 03H)Same as CHANNEL B Volume Control.6.5 CHANNEL B VOLUME CONTROL (ADDRESS 04H)6.5.1 MUTE (MUTE

Page 23 - 4.9.4a SPI Write

CS4341DS298F5 38.1 SOIC ...

Page 24 - 5. REGISTER QUICK REFERENCE

CS434130 DS298F56.5.2 VOLUME (VOLx) BIT 0-6 Default = 0 dB (No Attenuation)Function:The digital volume control allows the user to attenuate the signa

Page 25 - 6. REGISTER DESCRIPTION

CS4341DS298F5 317. PARAMETER DEFINITIONSTotal Harmonic Distortion + Noise (THD+N)The ratio of the rms value of the signal to the rms sum of all other

Page 26 - BIT 4-6

CS434132 DS298F58. PACKAGE DIMENSIONS8.1 SOIC INCHES MILLIMETERSDIM MIN NOM MAX MIN NOM MAXA 0.053 0.064 0.069 1.35 1.63 1.75A1 0.004 0.006 0.010 0.1

Page 27 - 01001001

CS4341DS298F5 338.2 TSSOP Notes: 1. “D” and “E1” are reference datums and do not included mold flash or protrusions, but do include mold mismatch and

Page 28 - BIT 0-4

CS434134 DS298F510.REFERENCESCDB4341 Evaluation Board Datasheet11.REVISION HISTORYRevision ChangesF4Added lead-free packaging information F5Corrected

Page 29 - 00000000

CS43414 DS298F51. CHARACTERISTICS AND SPECIFICATIONS(Min/Max performance characteristics and specifications are guaranteed over the Specified Operatin

Page 30 - BIT 0-6

CS4341DS298F5 5ANALOG CHARACTERISTICS (CS4341-KS/CZZ) (Test conditions (unless otherwise specified): Input test signal is a 997 Hz sine wave at 0 dBFS

Page 31 - 7. PARAMETER DEFINITIONS

CS43416 DS298F5ANALOG CHARACTERISTICS (CS4341-KS/CZZ) (Continued) Notes: 2. One-half LSB of triangular PDF dither is added to data.3. Refer to Figur

Page 32 - 8. PACKAGE DIMENSIONS

CS4341DS298F5 7COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE (The filter characteris-tics and the X-axis of the response plots have been

Page 33 - 9. PACKAGE THERMAL RESISTANCE

CS43418 DS298F5 Figure 3. Single-Speed Stopband Rejection Figure 4. Single-Speed Transition BandFigure 5. Single-Speed Transition Band (Deta

Page 34 - 11.REVISION HISTORY

CS4341DS298F5 9Figure 9. Double-Speed Transition Band (Detail) Figure 10. Double-Speed Passband Ripple

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