CDB5364 Cirrus Logic Inc, CDB5364 Datasheet

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CDB5364

Manufacturer Part Number
CDB5364
Description
EVALUATION BOARD FOR CS5364
Manufacturer
Cirrus Logic Inc
Datasheets

Specifications of CDB5364

Number Of Adc's
1
Number Of Bits
24
Sampling Rate (per Second)
192k
Data Interface
I²C, SPI™
Inputs Per Adc
4 Differential
Power (typ) @ Conditions
365mW @ 192kSPS
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Utilized Ic / Part
CS5364
Description/function
Audio A/D
Operating Supply Voltage
3.3 V
Product
Audio Modules
For Use With/related Products
CS5364
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
Analog Inputs
4 Differential
Advanced Multi-bit Delta-Sigma Architecture
24-Bit Conversion
114 dB Dynamic Range
-105 dB THD+N
Supports Audio Sample Rates up to 216 kHz
Selectable Audio Interface Formats
Low Latency Digital Filter
Less than 365 mW Power Consumption
On-Chip Oscillator Driver
Operation as System Clock Master or Slave
Auto-Detect Speed in Slave Mode
Differential Analog Architecture
http://www.cirrus.com
Left-Justified, I²S, TDM
4-Channel TDM Interface Formats
114 dB, 192 kHz, 4-Channel A/D Converter
ΔΣ ADC
Multi-bit
Reference
Oscillator
Voltage
Internal
VA
5V
Decimation
Configuration
Filter
Registers
Copyright  Cirrus Logic, Inc. 2009
(All Rights Reserved)
High Pass
3.3 - 5V
Filter
VD
Additional Control Port Features
Separate 1.8 V to 5 V Logic Supplies for
Control and Serial Ports
High-Pass Filter for DC Offset Calibration
Overflow Detection
Footprint Compatible with the 8-Channel
CS5368
Supports Standard I²C™ or SPI™ Control
Interface
Individual Channel HPF Disable
Overflow Detection for Individual Channels
Mute Control for Individual Channels
Independent Power-Down Control per Channel
Pair
Control Interface
I2C, SPI
or Pins
Audio Out
PCM or
Serial
TDM
1.8 - 5V
CS5364
1.8 - 5V
VLC
VLS
Digital
Audio
APRIL '09
DS625F4
Control
Device

Related parts for CDB5364

CDB5364 Summary of contents

Page 1

A/D Converter Features  Advanced Multi-bit Delta-Sigma Architecture  24-Bit Conversion  114 dB Dynamic Range  -105 dB THD+N  Supports Audio Sample Rates up to 216 kHz  Selectable Audio Interface Formats – ...

Page 2

... The CS5364 is available in a 48-pin LQFP (-40°C to +105°C). The CDB5364 Customer Demonstration board is also available for device evaluation and implementation suggestions. Please see The CS5364 is ideal for high-end and pro-audio systems requiring unrivaled sound quality, transparent conversion, wide dynamic range and negligible distortion, such as A/V receivers, digital mixing consoles, multi-channel record- ers, outboard converters, digital effect processors, and automotive audio systems ...

Page 3

TABLE OF CONTENTS 1. PIN DESCRIPTION ................................................................................................................................. 6 2. TYPICAL CONNECTION DIAGRAM 3. CHARACTERISTICS AND SPECIFICATIONS .................................................................................... 10 RECOMMENDED OPERATING CONDITIONS ................................................................................. 10 ABSOLUTE RATINGS ....................................................................................................................... 10 SYSTEM CLOCKING ......................................................................................................................... 10 DC POWER ........................................................................................................................................ 11 LOGIC LEVELS ................................................................................................................................. 11 PSRR, ...

Page 4

Global Mode Control Register ................................................................................... 32 5.4 02h (OVFL) Overflow Status Register ........................................................................................... 33 5.5 03h (OVFM) Overflow Mask Register ............................................................................................ 33 5.6 04h (HPF) High-Pass Filter Register ............................................................................................. 34 5.7 05h Reserved ................................................................................................................................ 34 5.8 06h ...

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LIST OF TABLES Table 1. Power Supply Pin Definitions ...................................................................................................... 19 Table 2. DIF1 and DIF0 Pin Settings ........................................................................................................ 23 Table 3. M1 and M0 Settings .................................................................................................................... 23 Table 4. Frequencies for 48 kHz Sample Rate using LJ/I²S ..................................................................... 25 ...

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PIN DESCRIPTION AIN2+ AIN2- 2 GND REF_GND 5 FILT GND GND 11 AIN4+ 12 AIN4- 13 ...

Page 7

Pin Name Pin # AIN2+, AIN2- 1,2 AIN4+, AIN4- 11,12 Differential Analog (Inputs) - Audio signals are presented differently to the delta sigma modula- AIN3+, AIN3- 13,14 tors via the AIN+/- pins. AIN1+, AIN1- 47,48 3,8 10,15 16,17 GND 18,19 ...

Page 8

Stand-Alone Mode CLKMODE (Input) - Setting this pin HIGH places a divide-by-1.5 circuit in the MCLK path to the CLKMODE 34 core device circuitry. DIF1 37 DIF1, DIF0 (Input) - Sets the serial audio interface format. DIF0 ...

Page 9

TYPICAL CONNECTION DIAGRAM Resistor may only be used derived from VA. If used, do not drive any other logic from VD. +5V + 0.01 μ μ FILT+ + 220 μ F ...

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CHARACTERISTICS AND SPECIFICATIONS RECOMMENDED OPERATING CONDITIONS GND = 0 V, all voltages with respect Parameter DC Power Supplies: Ambient Operating Temperature 1. TDM Quad-Speed Mode specified to operate correctly at VLS ≥ 3.14 V. ABSOLUTE RATINGS ...

Page 11

DC POWER MCLK = 12.288 MHz; Master Mode. GND = 0 V. Parameter Power Supply Current (Normal Operation) Power Supply Current (Power-Down) (Note 1) Power Consumption (Normal Operation VLS = VLC = 3.3 V ...

Page 12

ANALOG CHARACTERISTICS (COMMERCIAL) Test Conditions (unless otherwise specified VLS = VLC 3.3 V, and T sine wave. Measurement Bandwidth kHz. Parameter Single-Speed Mode kHz Dynamic Range ...

Page 13

ANALOG PERFORMANCE (AUTOMOTIVE) Test Conditions (unless otherwise specified 5. 5.25 to 3.14 V, VLS = VLC = 5.25 to 1.71 V and T = -40° to +85° C. Full-scale input sine wave. Measurement ...

Page 14

DIGITAL FILTER CHARACTERISTICS Parameter Single-Speed Mode (2 kHz to 54 kHz sample rates) Passband (Note 1) Passband Ripple Stopband (Note 1) Stopband Attenuation Total Group Delay (Fs = Output Sample Rate) Double-Speed Mode (54 kHz to 108 kHz sample rates) ...

Page 15

SERIAL AUDIO INTERFACE - I²S/LJ TIMING The serial audio port is a three-pin interface consisting of SCLK, LRCK and SDOUT. Logic "0" = GND = 0 V; Logic "1" = VLS; C Parameter Sample Rates Master Mode SCLK Frequency SCLK ...

Page 16

SERIAL AUDIO INTERFACE - TDM TIMING The serial audio port is a three-pin interface consisting of SCLK, LRCK and SDOUT. Logic "0" = GND = 0 V; Logic "1" = VLS; C Parameter Sample Rates Master Mode SCLK Frequency SCLK ...

Page 17

SWITCHING SPECIFICATIONS - CONTROL PORT - I²C TIMING Inputs: Logic 0 = DGND, Logic 1 = VLC, SDA C Parameter SCL Clock Frequency RST Rising Edge to Start Bus Free Time Between Transmissions Start Condition Hold Time (prior to first ...

Page 18

SWITCHING SPECIFICATIONS - CONTROL PORT - SPI TIMING Inputs: Logic 0 = DGND, Logic 1 = VLC, CDOUT C Parameter CCLK Clock Frequency RST Rising Edge to CS Falling CS Falling to CCLK Edge CS High Time Between Transmissions CCLK ...

Page 19

... Clocks should be kept away from the FILT+ and VQ pins in order to avoid unwanted coupling of these signals into the device. The FILT+ and VQ decoupling capac- itors must be positioned to minimize the electrical path to ground. The CDB5364 evaluation board demonstrates optimum layout for the device. 4.2 Control Port Mode and Stand-Alone Operation 4 ...

Page 20

Master Clock Source The CS5364 requires a Master Clock that can come from one of two sources: an on-chip crystal oscillator driver or an externally generated clock. 4.3.1 On-Chip Crystal Oscillator Driver When using the on-board crystal oscillator driver, ...

Page 21

Master and Slave Operation CS5364 operation depends on two clocks that are synchronously derived from MCLK: SCLK and LRCK/FS. See Section 4.5 on page 22 The CS5364 can operate as either clock master or clock slave with respect to ...

Page 22

Serial Audio Interface (SAI) Format The SAI port consists of two timing pins (SCLK, LRCK/FS) and four audio data output pins (SDOUT1/TDM, SDOUT2, SDOUT3/TDM and SDOUT4). The CS5364 output is serial data in I²S, Left-Justified (LJ), or Time Division ...

Page 23

TDM Format In TDM Mode, all four channels of audio data are serially clocked out during a single Frame Sync (FS) cy- cle, as shown in Figure 12. The rising edge of FS signifies the start of a new ...

Page 24

Master Mode Clock Dividers Figure 13 shows the configuration of the MCLK dividers and the sample rate dividers for Master Mode, in- cluding the significance of each MCLK divider pin (in Stand-Alone Mode) or bit (in Control Port Mode). ...

Page 25

Master and Slave Clock Frequencies Tables 4 through 12 show the clock speeds for sample rates of 48 kHz, 96 kHz and 192 kHz. The MCLK/LRCK ratio should be kept at a constant value during each mode. In Master ...

Page 26

TDM MASTER MCLK Divider MCLK (MHz) SCLK (MHz) MCLK/FS Ratio SCLK/FS Ratio Table 9. Frequencies for 96 kHz Sample Rate using TDM TDM SLAVE MCLK Divider MCLK (MHz) SCLK (MHz) MCLK/FS Ratio SCLK/FS Ratio Table 10. Frequencies for 96 kHz ...

Page 27

Reset The device should be held in reset until power is applied and all incoming clocks are stable and valid. Upon de-assertion of RST, the state of the configuration pins is latched, the state machine begins, and the device ...

Page 28

Analog Connections The analog modulator samples the input at half of the internal Master Clock frequency, or 6.144 MHz nom- inally. The digital filter will reject signals within the stopband of the filter. However, there is no rejection of ...

Page 29

Optimizing Performance in TDM Mode Noise Management is a design technique that is utilized in the majority of audio A/D converters. Noise man- agement is relatively simple conceptually. The goal of noise management is to interleave the on-chip digital ...

Page 30

Control Port Operation The Control Port is used to read and write the internal device registers. It supports two industry standard formats, I²C and SPI. The part is in I²C format by default. SPI Mode is selected if there ...

Page 31

I²C Mode In I²C Mode, SDA is a bidirectional data line. Data is clocked into and out of the part by the clock, SCL. There pin. Pins AD0 and AD1 form the two least-significant bits of ...

Page 32

REGISTER MAP In Control Port Mode, the bits in these registers are used to control all of the programmable features of the ADC. All registers above 0Ah are RESERVED. 5.1 Register Quick Reference Adr Name 7 00 REVI 01 ...

Page 33

Bits[5:4] MDIV[1:0] Each bit selects an XTI divider. When either bit is low, an XTI divide-by-1 function is selected. When either bit is HIGH, an XTI divide-by-2 function is selected. With both bits HIGH, XTI is divid ...

Page 34

High-Pass Filter Register R R/W RESERVED RESERVED RESERVED RESERVED Default: 0x00, all high-pass filters enabled. The High-Pass Filter Register is used to enable or disable a high-pass filter that exists for each channel. These filters ...

Page 35

Reserved R RESERVED - - 5.12 0Ah (SDEN) SDOUT Enable Control Register R R/W RESERVED Default: 0x00, all SDOUT pins enabled. The SDOUT Enable Control Register is used to tri-state the serial audio data ...

Page 36

FILTER PLOTS 0.1 0.08 0.06 0.04 0.02 0 −0.02 −0.04 −0.06 −0.08 −0.1 0 0.05 0.1 0.1 0.08 0.06 0.04 0.02 0 −0.02 −0.04 −0.06 −0.08 −0.1 0 0.05 0.1 0.1 0.08 0.06 0.04 0.02 0 −0.02 −0.04 −0.06 ...

Page 37

DS625F4 0.3 0.4 0.5 0.6 Frequency (normalized to ...

Page 38

0 −0.2 −0.4 −0.6 −0.8 −1 −1.2 −1.4 −1.6 −1.8 −2 0.4 0.42 0.44 0 −0.2 −0.4 −0.6 −0.8 −1 −1.2 −1.4 −1.6 −1.8 −2 0.4 0.42 0.44 0 −0.2 −0.4 −0.6 −0.8 −1 −1.2 −1.4 −1.6 −1.8 −2 0.2 ...

Page 39

PARAMETER DEFINITIONS Dynamic Range The ratio of the rms value of the signal to the rms sum of all other spectral components over the specified bandwidth. Dynamic Range is a signal-to-noise ratio measurement over the specified bandwidth made with ...

Page 40

PACKAGE DIMENSIONS 48L LQFP PACKAGE DRAWING D D DIM MIN A --- A1 0.002 B 0.007 D 0.343 D1 0.272 E 0.343 E1 0.272 e* 0.016 L 0.018 ∝ 0.000° * Nominal pin pitch is 0.50 mm Controlling dimension ...

Page 41

... CS5364 4-channel A/D LQFP Converter CDB5364 Evaluation Board for CS5364 10.REVISION HISTORY Revision Updated the wording of pin 24, LRCK/FS, in the pin description table on page 7 to correctly reflect the F2 high/low clocking state for odd-channel selection in I²S and LJ Modes. ...

Page 42

Contacting Cirrus Logic Support For all product questions and inquiries, contact a Cirrus Logic Sales Representative. To find the one nearest you IMPORTANT NOTICE Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this ...

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