CDB4392 Cirrus Logic Inc, CDB4392 Datasheet

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CDB4392

Manufacturer Part Number
CDB4392
Description
EVALUATION BOARD FOR CS4392
Manufacturer
Cirrus Logic Inc
Datasheets

Specifications of CDB4392

Number Of Dac's
2
Number Of Bits
24
Outputs And Type
2, Differential
Sampling Rate (per Second)
192k
Data Interface
Serial
Dac Type
Voltage
Voltage Supply Source
Analog and Digital
Operating Temperature
-10°C ~ 70°C
Utilized Ic / Part
CS4392
Description/function
Audio D/A
Operating Supply Voltage
5 V
Product
Audio Modules
For Use With/related Products
CS4392
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Features
Preliminary Product Information
http://www.cirrus.com
Complete Stereo DAC System: Interpolation,
D/A, Output Analog Filtering
114 dB Dynamic Range
100 dB THD+N
Up to 192kHz Sample Rates
Direct Stream Digital Mode
Low Clock Jitter Sensitivity
Single +5 V Power Supply
Selectable Digital Filters
– Fast and Slow roll-off
Volume Control with Soft Ramp
– 1 dB Step Size
– Zero Crossing Click-Free Transitions
Direct Interface with 5 V to 1.8 V Logic
ATAPI Mixing Functions
Pin Compatible with the CS4391
I
24-Bit, 192 kHz Stereo DAC with Volume Control
SDATA
SCLK
LRCK
RST
SERIAL
(SDA/CDIN)
PORT
M1
(CONTROL PORT)
MODE SELECT
M3
CONTROL
CONTROL
VOLUME
VOLUME
MIXER
(SCL/CCLK)
Copyright © Cirrus Logic, Inc. 2002
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
M2
(All Rights Reserved)
(AD0/CS)
M0
INTERPOLATION
INTERPOLATION
FILTER
FILTER
Description
The CS4392 is a complete stereo digital-to-analog sys-
tem including digital interpolation, fifth-order delta-sigma
digital-to-analog conversion, digital de-emphasis, vol-
ume control, channel mixing and 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 tempera-
ture, and a high tolerance to clock jitter.
The CS4392 accepts PCM data at sample rates from
4 kHz to 192 kHz, DSD audio data, has selectable digital
filters, and consumes very little power. These features
are ideal for DVD, SACD players, A/V receivers, CD and
set-top box systems. The CS4392 is pin and register
compatible with the CS4391, making easy performance
upgrades possible.
ORDERING INFORMATION
CS4392-KS
CS4392-KZ
CS4392-KZZ, Lead Free -10 to 70 °C 20-pin TSSOP
CDB4392
AMUTEC
MUTE CONTROL
EXTERNAL
MCLK
BMUTEC
DAC
DAC
∆Σ
∆Σ
CMOUT
REFERENCE
ANALOG
ANALOG
FILTER
FILTER
FILT+
-10 to 70 °C 20-pin SOIC
-10 to 70 °C 20-pin TSSOP
AOUTA+
AOUTA-
AOUTB+
AOUTB-
CS4392
Evaluation Board
DS459PP3
SEP ‘04

Related parts for CDB4392

CDB4392 Summary of contents

Page 1

... DVD, SACD players, A/V receivers, CD and set-top box systems. The CS4392 is pin and register compatible with the CS4391, making easy performance upgrades possible. ORDERING INFORMATION CS4392-KS CS4392-KZ CS4392-KZZ, Lead Free - °C 20-pin TSSOP CDB4392 (SCL/CCLK) (AD0/CS) AMUTEC MODE SELECT ...

Page 2

TABLE OF CONTENTS 1. PIN DESCRIPTION - PCM DATA MODE .................................................................... 5 1.1 PIN DESCRIPTION - DSD mode ..................................................................... 6 2. TYPICAL CONNECTION DIAGRAMS ........................................................................ 7 3. APPLICATIONS ........................................................................................................... 9 3.1 Recommended Power-up Sequence for Hardware Mode ................................ 9 3.2 ...

Page 3

Soft Ramp or Zero Cross Enable (Bits 6:5) ...........................................20 6.2.3 ATAPI Channel Mixing and Muting (Bits 4:0) .........................................20 6.3 Channel A Volume Control - Address 03h ......................................................22 6.4.1 Mute (Bit 7) ............................................................................................22 6.4.2 Volume Control (Bits 6:0) .......................................................................22 6.5 ...

Page 4

LIST OF FIGURES Figure 1. Typical Connection Diagram - PCM Mode....................................................................... 7 Figure 2. Typical Connection Diagram - DSD Mode ....................................................................... 8 Figure 3. CS4392 Output Filter ....................................................................................................... 9 Figure 4. Format 0, Left Justified up to 24-Bit Data....................................................................... 11 ...

Page 5

PIN DESCRIPTION - PCM DATA MODE (SCL/CCLK) M2 (SDA/CDIN) M1 (AD0/CS) M0 RST 1 Reset (Input) - Powers down device and resets all internal registers to their default settings Logic Power (Input) - Positive power for the ...

Page 6

PIN DESCRIPTION - DSD mode DSD_MODE DSD_SCLK (SCL/CCLK) M2 (SDA/CDIN) M1 (AD0/CS) M0 DSD_A 3 DSD Data (Input) - Input for Direct Stream Digital serial audio data. DSD_B 4 DSD_Mode 5 DSD Mode (Input stand alone mode, ...

Page 7

TYPICAL CONNECTION DIAGRAMS Mode Select (Control Port) * Logic Power +5V to 1.8V 0.1 µf Audio Data Processor * External Clock Figure 1. Typical Connection Diagram - PCM Mode * A high logic level for all digital inputs should ...

Page 8

Mode Select (Control Port) Logic Power +5V to 1.8V 0.1 µf Audio Data Processor * External Clock Figure 2. Typical Connection Diagram - DSD Mode * A high logic level for all digital inputs should not exceed VL ...

Page 9

... AC coupling capacitors to 2 caps per chan- nel. The circuit in figure 3 may also be DC coupled, however the filter on the CDB4392 must be AC coupled. The CS4392 is a linear phase design and does not include phase or amplitude compensation for an external filter ...

Page 10

Interpolation Filter To accommodate the increasingly complex requirements of digital audio systems, the CS4392 incorpo- rates selectable interpolation filters for each mode of operation. A fast and a slow roll-off filter is available in each of Single, Double, and ...

Page 11

Digital Interface Format The device will accept audio samples in several digital interface formats as illustrated in Tables 5 and 8. The desired format is selected via the M0 and M1 pins for stand alone mode, and through the ...

Page 12

De-Emphasis The device includes on-chip digital de-emphasis. Figure 7 shows the de-emphasis curve for F 44.1 kHz. The frequency response of the de-emphasis curve will scale proportionally with changes in sam- ple rate Please see Table 5 ...

Page 13

... Also, use of the Mute Control function can enable the system de- signer to achieve idle channel noise/signal-to-noise ratios which are only limited by the external mute cir- cuit. See the CDB4392 data sheet for a suggested mute circuit. DS459PP3 64x oversampled DSD data with a 4x MCLK to DSD data rate ...

Page 14

CONTROL PORT INTERFACE The control port is used to load all the internal register settings (see section 6). The operation of the control port may be completely asynchronous with the audio sample rate. However, to avoid potential interference problems, ...

Page 15

I C Read To read from the device, follow the procedure below while adhering to the control port Switching Specifications. 1) Initiate a START condition to the I must be 001000. The seventh bit must match the setting ...

Page 16

SPI Mode In SPI mode, data is clocked into the serial control data line, CDIN, by the serial control port clock, CCLK (see Figure 9 for the clock to data relationship). There is no AD0 pin. Pin CS is ...

Page 17

REGISTER QUICK REFERENCE Addr Function 7 01h Mode Control 1 AMUTE 1 02h Volume and MIxing Control 0 03h Channel A MUTE Volume Control 0 04h Channel B MUTE Volume Control 0 05h Mode Control 2 ...

Page 18

REGISTER DESCRIPTION ** All registers are read/write in Two-Wire mode and write only in SPI mode, unless otherwise noted** 6.1 Mode Control 1 - Address 01h 7 6 AMUTE DIF2 6.1.1 Auto-Mute (Bit 7) Function: The Digital-to-Analog converter output ...

Page 19

DSD Mode - The relationship between the oversampling ratio of the DSD audio data and the required Master clock to DSD data rate is defined by the Digital interface Format pins. Note that the Functional Mode registers must be set ...

Page 20

Volume and Mixing Control (Address 02h Soft Zero Cross 6.2.1 Channel A Volume = Channel B Volume (Bit 7) Function: The AOUTA and AOUTB volume levels are independently controlled by the A and the ...

Page 21

ATAPI4 ATAPI3 ATAPI2 ...

Page 22

Channel A Volume Control - Address 03h See 4.4 Channel B Volume Control - Address 04h 6.4 CHANNEL B VOLUME CONTROL - ADDRESS 04H 7 6 MUTE VOL6 VOL5 6.4.1 Mute (Bit 7) Function: The Digital-to-Analog converter output will ...

Page 23

Control Port Enable (Bit 5) Function: This bit defaults to 0, allowing the device to power-up in Stand-Alone mode. The Control port mode can be accessed by setting this bit to 1. This will allow the operation of the ...

Page 24

Soft Volume Ramp-up after Reset (Bit 3) Function: This function allows the user to control whether a soft ramp up in volume is applied when reset is re- leased either by the reset pin or internal to the chip. ...

Page 25

CHARACTERISTICS/SPECIFICATIONS ANALOG CHARACTERISTICS (CS4392-KS/KZ/KZZ) specified): Input test signal is a 997 Hz sine wave at 0 dBFS; measurement bandwidth kHz; test load R = 3kΩ pF. Typical performance characteristics are derived ...

Page 26

COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE filter characteristics and the X-axis of the response plots have been normalized to the sample rate (Fs) and can be referenced to the desired sample rate by multiplying the given characteristic by Fs.) ...

Page 27

COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE Parameter Single-Speed Mode - (4 kHz to 50 kHz sample rates) Passband Frequency Response kHz StopBand StopBand Attenuation Group Delay Passband Group Delay Deviation De-emphasis Error (Relative to 1kHz) ...

Page 28

Frequency(normalized to Fs) Figure 12. Single Speed (fast) Stopband Rejection 0.45 0.46 0.47 0.48 0.49 0.5 0.51 Frequency(normalized ...

Page 29

Frequency(normalized to Fs) Figure 18. Single Speed (slow) Transition Band (detail 100 120 0.4 0.5 0.6 0.7 ...

Page 30

Frequency(normalized to Fs) Figure 24. Double Speed (slow) Stopband Rejection 0.45 0.46 0.47 0.48 0.49 0.5 0.51 ...

Page 31

Frequency(normalized to Fs) Figure 30. Quad Speed (fast) Transition Band (detail 100 120 0.1 0.2 0.3 0.4 ...

Page 32

SWITCHING CHARACTERISTICS - SERIAL AUDIO INTERFACE (Inputs: Logic Logic 1 = VL) . Parameters Input Sample Rate LRCK Duty Cycle MCLK Duty Cycle SCLK Frequency Quad Speed Mode (MCLKDIV=0) Quad Speed Mode (MCLKDIV=1) SCLK rising to ...

Page 33

SWITCHING SPECIFICATIONS - DSD INTERFACE Parameter MCLK Duty Cycle DSD_SCLK Pulse Width Low DSD_SCLK Pulse Width High DSD_SCLK Period DSD_L or DSD_R valid to DSD_SCLK rising setup time DSD_SCLK rising to DSD_L or DSD_R hold time ...

Page 34

SWITCHING CHARACTERISTICS - CONTROL PORT INTERFACE (Inputs: logic 0 = AGND, logic 1 = VL) Parameter Mode SCL Clock Frequency RST Rising Edge to Start Bus Free Time Between Transmissions Start Condition Hold Time (prior to first ...

Page 35

SWITCHING CHARACTERISTICS - SPI CONTROL PORT logic 1 = VL) Parameter SPI Mode CCLK Clock Frequency RST Rising Edge to CS Falling CCLK Edge to CS Falling CS High Time Between Transmissions CS Falling to CCLK Edge CCLK Low Time ...

Page 36

DC ELECTRICAL CHARACTERISTICS Parameter Normal Operation (Note 10) Power Supply Current Power Dissipation Power-Down Mode (Note 11) Power Supply Current Power Dissipation All Modes of Operation Power Supply Rejection Ratio (Note 12) Common Mode Voltage Output Impedance Maximum allowable DC ...

Page 37

RECOMMENDED OPERATING SPECIFICATIONS to AGND.) Parameters DC Power Supply ABSOLUTE MAXIMUM RATINGS Parameters DC Power Supply Input Current, Any Pin Except Supplies Digital Input Voltage Ambient Operating Temperature (power applied) Storage Temperature WARNING: Operation at or beyond these limits may ...

Page 38

... The deviation from the nominal full scale analog output for a full scale digital input. Gain Drift The change in gain value with temperature. Units in ppm/°C. 9. REFERENCES 1. CDB4392 Evaluation Board Datasheet 2 2. “The I C-Bus Specification: Version 2.1” Philips Semiconductors, January 2000. ...

Page 39

DIMENSIONS 20L TSSOP (4.4 mm BODY) PACKAGE DRAWING TOP VIEW INCHES DIM MIN 0.002 A2 0.03346 b 0.00748 D 0.252 E 0.248 E1 0.169 0.020 ∝ 0° Notes: ...

Page 40

PACKAGE DIMENSIONS 20L SOIC (300 MIL BODY) PACKAGE DRAWING 1 b SEATING PLANE DIM MIN A 0.093 A1 0.004 b 0.013 C 0.009 D 0.496 E 0.291 e 0.040 H 0.394 L 0.016 ∝ 0° 40 (cont.). D e INCHES ...

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