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CS5333 to CS5343/4 Transition

1. INTRODUCTION

The CS5333 and CS5343/4 are complete stereo analog-to-digital converters for digital audio systems. These con-

verters perform sampling, analog-to-digital conversion and anti-alias filtering, generating 24-bit values for both left

and right channels. These small, low-power converters are ideal for systems requiring wide dynamic range and low

noise such as set-top boxes, A/V receivers, DVD-karaoke players, DVD recorders, and automotive applications.

The CS5333 is no longer recommended for new designs, and the CS5343/4 is the suggested replacement.

This application note identifies the implementation differences between these two devices, including:

• Key specifications

• Pinout differences

• Startup mode selections

• System clocking

• Input filter topology

• Reference voltage

The CS5333 and CS5343/4 datasheets contain detailed information regarding device specifications, performance

and ordering information. Please reference the CS5333 and CS5343/4 datasheets while reading this document.

2. KEY SPECIFICATIONS

Table 1 shows a comparison of the key specifications of these two device families, and Table 2 shows the pin com-

parison between the CS5333 and the CS5343/4. Although these two devices are not pin compatible, they are very

similar in terms of overall functionality and feature set.

Parameter CS5333 CS5343/4 Units

Conversion 24 24 Bits

Dynamic Range (A-Weighted) 98 98 dB

THD+N -88 -90 dB

Analog Core Power Supply (VA) +1.8 to +3.3 +3.3 to 5 V

Digital Core Power Supply (VD) Powered from VA Powered from VA V

Digital Interface Power Supply (VL) +1.8 to +3.3 Powered from VA V

Typical Power ConsumptionAll supplies = +3.3 V 36 50 mW

Maximum Sample Rate 100 108 kHz

Package 16-pin TSSOP 10-pin TSSOP

Table 1. Comparison of Key Specifications

AN285

SEPTEMBER '05

AN285REV1

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Página 1 - CS5333 to CS5343/4 Transition

Página 2 - CS5333 CS5343/4 Description

2 AN285REV1AN285CS5333 CS5343/4 DescriptionPin Number Pin Name Pin Number Pin Name1 VL - - Logic Power2 MCLK 4 MCLK Master Clock3 SCLK 2 SCLK Serial C

Página 3 - AN285REV1 3

AN285REV1 3AN2853. TYPICAL CONNECTION DIAGRAMSFigures 1 and 2 are the typical connection diagrams for the CS5333 and the CS5343/4 respectively. These

Página 4 - 4. POWER

4 AN285REV1AN285Figure 2. CS5343/4 Typical Connection Diagram4. POWER4.1 CS5333 PowerThe CS5333 receives power to the analog and digital cores throug

Página 5

AN285REV1 5AN2855. MODE SELECTIONS: MASTER/SLAVE & SPEED MODES5.1 CS5333 Mode Selections5.1.1 Master/Slave Mode SelectionThe CS5333 operates in ei

Página 6 - 6. SYSTEM CLOCKING

6 AN285REV1AN2856. SYSTEM CLOCKING6.1 CS5333 Clock OptionsThe CS5333 supports an MCLK/LRCK ratio of 256x, 384x, 512x, and 768x in Base-Rate Mode, and

Página 7 - 7. INPUT FILTER TOPOLOGY

AN285REV1 7AN2857. INPUT FILTER TOPOLOGY7.1 CS5333 Input FilterFigure 3 shows the recommended input circuit for the CS5333. The CS5333 contains an int

Página 8 - 9. DIGITAL INTERFACE FORMAT

8 AN285REV1AN2857.2.2 CS5343/4 Full-Scale VoltageThe CS5333 full-scale input voltage is 0.78xVA Vpp whereas the CS5343/4 full-scale input voltage is0.

Página 9 - 11.REVISION HISTORY

AN285REV1 9AN28510.CONCLUSIONWith special attention to power arrangements, mode and clocking configurations, analog input circuitry, and refer-ence vo

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Cirrus-logic AN285 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Hardware Cirrus-logic AN285. Cirrus Logic AN285 User Manual Manual do Utilizador

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