CDB4340A Cirrus Logic Inc, CDB4340A Datasheet

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CDB4340A

Manufacturer Part Number
CDB4340A
Description
EVALUATION BOARD FOR CS4340A
Manufacturer
Cirrus Logic Inc
Series
Popguard®r
Datasheets

Specifications of CDB4340A

Number Of Dac's
2
Number Of Bits
24
Outputs And Type
2, Single Ended
Sampling Rate (per Second)
192k
Data Interface
Serial
Dac Type
Voltage
Voltage Supply Source
Single
Operating Temperature
-10°C ~ 70°C
Utilized Ic / Part
CS4340A
Description/function
Audio D/A
Operating Supply Voltage
5 V
Product
Audio Modules
For Use With/related Products
CS4340A
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
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http://www.cirrus.com
101 dB Dynamic Range
-91 dB THD+N
+3.3 V or +5 V Power Supply
50 mW with 3.3 V supply
Low Clock Jitter Sensitivity
Filtered Line Level Outputs
On-Chip Digital De-emphasis for 44.1 kHz
Popguard
and Pops
Up to 200 kHz Sample Rates
Automatic Mode Detection for Sample Rates
between 4 and 200 kHz
Pin Compatible with the CS4340
LRCK
SDIN
RST
®
Technology for Control of Clicks
24-Bit, 192 kHz Stereo DAC for Audio
DIF0 DIF1
Interface
Serial
Audio
SCLK
Interpolation
Interpolation
Filter
Filter
De-emphasis
DEM
Copyright © Cirrus Logic, Inc. 2005
MCLK
(All Rights Reserved)
Description
The CS4340A 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 CS4340A accepts data at all standard audio sample
rates up to 192 kHz, consumes very little power, oper-
ates over a wide power supply range and is pin
compatible with the CS4340, as described in section 3.1.
These features are ideal for DVD audio players.
ORDERING INFORMATION
CS4340A-KS
CS4340A-KSZ, Lead Free, 16-pin SOIC, -10 to 70 °C
CDB4340A
∆ Σ
∆ Σ
DAC
DAC
Mute Control
External
M UTEC
Analog Filter
Analog Filter
16-pin SOIC, -10 to 70 °C
Evaluation Board
CS4340A
AOUTL
AOUTR
DS590F2
JULY '05
1

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CDB4340A Summary of contents

Page 1

... CS4340, as described in section 3.1. These features are ideal for DVD audio players. ORDERING INFORMATION CS4340A-KS CS4340A-KSZ, Lead Free, 16-pin SOIC, - °C CDB4340A DEM De-emphasis Mute Control Interpolation ∆ Σ DAC ...

Page 2

TABLE OF CONTENTS 1. PIN DESCRIPTION ....................................................................................................................4 2. TYPICAL CONNECTION DIAGRAM......................................................................................5 3. APPLICATIONS .........................................................................................................................6 3.1 Upgrading from the CS4340 to the CS4340A .....................................................................6 3.2 Sample Rate Range/Operational Mode Detect ....................................................................6 3.3 System Clocking ..................................................................................................................6 3.4 Digital Interface Format.......................................................................................................7 3.5 De-Emphasis ...

Page 3

LIST OF FIGURES Figure 1. Typical Connection Diagram..........................................................................................................5 Figure 2. CS4340A Format Figure 3. CS4340A Format 1 - Left Justified up to 24-Bit Data.....................................................................8 Figure 4. CS4340A Format 2 - Right Justified, 24-Bit Data ..........................................................................8 Figure 5. ...

Page 4

PIN DESCRIPTION Pin Name # Pin Description RST 1 Reset (Input) - Powers down device. SDIN 2 Serial Audio Data (Input) - Input for two’s complement serial audio data. SCLK 3 Serial Clock (Input) -Serial clock for the serial ...

Page 5

TYPICAL CONNECTION DIAGRAM 2 SDIN Serial Audio 3 Data SCLK Processor CLK External Clock 6 DIF1 7 DIF0 Mode 8 Configuration DEM 1 RST DS590F2 + 0.1 µF 1 µ 3.3 µF ...

Page 6

APPLICATIONS 3.1 Upgrading from the CS4340 to the CS4340A The CS4340A is pin and functionally compatible with all CS4340 designs, operating at the standard audio sample rates, that use pin serial clock input. In addition to ...

Page 7

Sample Rate (kHz) 256x 32 8.1920 44.1 11.2896 48 12.2880 Sample Rate (kHz) 88.2 96 Sample Rate (kHz) 176.4 192 3.4 Digital Interface Format The device will accept audio samples in several digital interface formats as illustrated in Table 5. ...

Page 8

Left C ha nnel SDIN + Figure 3. CS4340A Format 1 - Left Justified up to 24-Bit Data LRCK nne l ...

Page 9

Power-up Sequence Reliable power-up can be accomplished by keeping the device in reset until the power supply and config- uration pins are stable, and the clocks are locked to the appropriate frequencies discussed in section 3. also ...

Page 10

... The FILT+ and VQ decoupling capacitors, particularly the 0.1 µF, must be positioned to minimize the electrical path from FILT+ and REF_GND (as well as VQ and REF_GND), and should also be located on the same layer as the DAC. The CDB4340A evaluation board demonstrates the optimum layout and power supply arrangements. ...

Page 11

CHARACTERISTICS AND SPECIFICATIONS (Min/Max performance characteristics and specifications are guaranteed over the Specified Operating Conditions. Typical performance characteristics are derived from measurements taken at T RECOMMENDED OPERATING SPECIFICATION Parameters DC Power Supply Ambient Operating Temperature ABSOLUTE MAXIMUM RATINGS beyond ...

Page 12

ANALOG CHARACTERISTICS (CS4340A-KS/KSZ) specified): Input test signal is a 997 Hz sine wave; measurement bandwidth kHz; test load kΩ (see Figure 7).) L L Parameter Single-Speed Mode Dynamic ...

Page 13

ANALOG CHARACTERISTICS (CS4340A-KS/KSZ) Parameters Dynamic Performance for All Modes Interchannel Isolation (1 kHz) DC Accuracy Interchannel Gain Mismatch Gain Drift Analog Output Characteristics and Specifications Full Scale Output Voltage Output Impedance Minimum AC-Load Resistance Maximum Load Capacitance Notes: 2. One-half ...

Page 14

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 15

Figure 11. Single-Speed Transition Band (Detail) Figure 13. Double-Speed Stopband Rejection DS590F2 Figure 12. Single-Speed Passband Ripple Figure 14. Double-Speed Transition Band CS4340A 15 ...

Page 16

Figure 15. Double-Speed Transition Band (Detail) 16 Figure 16. Double-Speed Passband Ripple CS4340A DS590F2 ...

Page 17

SWITCHING SPECIFICATIONS - SERIAL AUDIO INTERFACE Parameters MCLK Frequency MCLK Duty Cycle Input Sample Rate (Note 6) LRCK Duty Cycle SCLK Frequency SCLK Pulse Width Low SCLK Pulse Width High SCLK rising to LRCK edge delay SCLK rising to LRCK ...

Page 18

DC ELECTRICAL CHARACTERISTICS Parameters Normal Operation (Note 8) Power Supply Current Power Dissipation Power-down Mode (Note 9) Power Supply Current Power Dissipation All Modes of Operation Power Supply Rejection Ratio (Note 10) V Nominal Voltage Q Output Impedance Maximum allowable ...

Page 19

... Units in decibels. Interchannel Gain Mismatch The gain difference between left and right channels. Units in decibels. Gain Drift The change in gain value with temperature. Units in ppm/°C. 6. REFERENCES 1) CDB4340A Evaluation Board Datasheet DS590F2 CS4340A 19 ...

Page 20

PACKAGE DIMENSIONS 16L SOIC (150 MIL BODY) PACKAGE DRAWING 1 b SEATING PLANE e DIM MIN A 0.053 A1 0.004 b 0.013 C 0.0075 D 0.386 E 0.150 e 0.040 H 0.228 L 0.016 ∝ 0° THERMAL CHARACTERISTICS AND ...

Page 21

REVISION HISTORY Release Date F2 July 2005 Added Revision History table and updated ordering information. Contacting Cirrus Logic Support For all product questions and inquiries contact a Cirrus Logic Sales Representative. To find one nearest you go to www.cirrus.com ...

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