Description

Electronic Component Model: MC145484SDR2

Product Category: Interface - CODECs

The MC145484 is a general purpose per channel PCM Codec–Filter with pin selectable Mu–Law or A–Law companding. It is offered in 20–pin SOG and SSOP packages. This device performs the voice digitization and reconstruction as well as the band limiting and smoothing required for PCM systems. The MC145484 PCM Codec–Filter utilizes CMOS due to its reliable low–power performance and proven capability for complex analog/digital VLSI functions.

Key Features:

• Single 5 V Power Supply

• Typical Power Dissipation of 15 mW, Power–Down of 0.01 mW

• Fully–Differential Analog Circuit Design for Lowest Noise

• Transmit Band–Pass and Receive Low–Pass Filters On–Chip

• Active R–C Pre–Filtering and Post–Filtering

• Mu–Law and A–Law Companding by Pin Selection

• On–Chip Precision Reference Voltage of 1.575 V for a – 0 dBm TLP @ 600 Ω

• Push–Pull 300 Ω Power Drivers with External Gain Adjust

• MC14LC5480EVK is the Evaluation Kit for This Device

Specifications and features

• Per channel PCM Codec–Filter

• Pin selectable Mu–Law or A–Law companding

• 20–pin SOG and SSOP packages

• Designed for both synchronous and asynchronous applications

• CMOS technology for reliable low–power performance

• Voice digitization and reconstruction

• Band limiting and smoothing for PCM systems

• Fully–Differential Analog Circuit Design for Lowest Noise

• Transmit Band–Pass and Receive Low–Pass Filters On–Chip

• Active R–C Pre–Filtering and Post–Filtering

• On–Chip Precision Reference Voltage of 1.575 V for a – 0 dBm TLP @ 600 Ω

• Push–Pull 300 Ω Power Drivers with External Gain Adjust

• Evaluation Kit: MC14LC5480EVK

Application Scenarios

The MC145484SDR2 is suitable for applications requiring PCM voice digitization and reconstruction. It can be used in both synchronous and asynchronous systems. It is commonly used in telecommunication devices, audio equipment, and other devices that require PCM Codec–Filter functionality and low power consumption.

Comparison

• Single 5V power supply
• Low power dissipation
• Low noise due to fully-differential analog circuit design
• On-chip precision reference voltage
• Supports both Mu-Law and A-Law companding
• External gain adjustment for power drivers

• Only available in 20-pin SOG and SSOP packages
• May require additional evaluation kit (MC14LC5480EVK)