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Jun 15 2020

MC145481EG Datasheets| NXP| PDF| Price| In Stock

Product Overview

Kynix Part #:

KY32-MC145481EG

Manufacturer Part#:

MC145481EG

Product Category:

Interface - CODECs

Stock:

Yes

Manufacturer:

Freescale Semiconductor - NXP

Click Purchase button to buy original genuine MC145481EG

Description:

IC CODEC-FILTER PCM 3V 20-SOIC W

Datasheet:

MC145481EG Datasheet

Package:

20-SOIC (0.295", 7.50mm Width)

Quantity:

5737 PCS

MC145481EG Images are for reference only.


CAD Models

MC145481EG Footprint


Product Attributes

Base Part Number

MC145481

Case/Package

SOIC

Category

Integrated Circuits (ICs) > Interface - CODECs

Data Interface

PCM Audio Interface

Description

IC CODEC-FILTER PCM 3V 20-SOIC

Detailed Description

PCM, Filter Interface 6 b PCM Audio Interface 20-SOIC

Dynamic Range, ADCs / DACs (db) Typ

-

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Manufacturer

NXP Semiconductors / Freescale

Max Operating Temperature

85°C

Manufacturer

NXP Semiconductors / Freescale

Min Operating Temperature

-40°C

Moisture Sensitivity Level (MSL)

3 (168 Hours)

Mounting Type

Surface Mount

Number of ADCs / DACs

1 / 1

Number of Bits

13

Number of Channels

1

Operating Temperature

-40°C ~ 85°C

Package / Case

20-SOIC (0.295", 7.50mm Width)

Packaging

Tube 

Part Number

MC145481EG

Part Status

Obsolete

Resolution (Bits)

6 b

S/N Ratio, ADCs / DACs (db) Typ

-

Series

-

Sigma Delta

No

Supplier Device Package

20-SOIC

Type

PCM, Filter

umber of ADCs / DACs

1 / 1

Voltage - Supply, Analog

-

Voltage - Supply, Digital

2.7 V ~ 5.25 V


Features

  • Single 2.7 to 5.25 V Power Supply
  • Typical Power Dissipation of 8 mW @ 3 V, 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 0.886 V for a – 5 dBm TLP @ 600 Ω
  • Push–Pull 300 Ω Power Drivers with External Gain Adjust

Advantages and Disadvantages

Advantages

The MC145481 is a general purpose per channel PCM Codec–Filter with pin selectable Mu–Law or A–Law companding, and 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.

This device is designed to operate in both synchronous and asynchronous applications and contains an on–chip precision reference voltage. This device has an input operational amplifier whose output is the input to the encoder section. The encoder section immediately low–pass filters the analog signal with an active R–C filter to eliminate very high frequency noise from being modulated down to the passband by the switched capacitor filter. From the active R–C filter, the analog signal is converted to a differential signal. From this point, all analog signal processing is done differentially. This allows processing of an analog signal that is twice the amplitude allowed by a single–ended design, which reduces the significance of noise to both the inverted and non–inverted signal paths. Another advantage of this differential design is that noise injected via the power supplies is a common–mode signal that is cancelled when the inverted and non–inverted signals are recombined. This dramatically improves the power supply rejection ratio.

After the differential converter, a differential switched capacitor filter band– passes the analog signal from 200 Hz to 3400 Hz before the signal is digitized by the differential compressing A/D converter.

The decoder accepts PCM data and expands it using a differential D/A converter. The output of the D/A is low–pass filtered at 3400 Hz and sinX/X compensated by a differential switched capacitor filter. The signal is then filtered by an active R–C filter to eliminate the out–of–band energy of the switched capacitor filter.

The MC145481 PCM Codec–Filter has a high impedance VAG reference pin which allows for decoupling of the internal circuitry that generates the mid–supply VAG reference voltage to the VSS power supply ground. This reduces clock noise on the analog circuitry when external analog signals are referenced to the power supply ground.

The MC145481 PCM Codec–Filter accepts a variety of clock formats, including Short Frame Sync, Long Frame Sync, IDL, and GCI timing environments. This device also maintains compatibility with Motorola’s family of Telecommunication products, including the MC14LC5472 and MC145572 U–Interface Transceivers, MC145474/75 and MC145574 S/T–Interface Transceivers, MC145532 ADPCM Transcoder, MC145422/26 UDLT–1, MC145421/25 UDLT–2, and MC3419/MC33120 SLICs.

The MC145481 PCM Codec–Filter utilizes CMOS due to its reliable low–power performance and proven capability for complex analog/digital VLSI functions.


Applications

There is no relevant information available for this part yet.


Product Functions

  • ANALOG INTERFACE AND SIGNAL PATH
  • POWER–DOWN
  • MASTER CLOCK
  • DIGITAL I/O
  • Long Frame Sync
  • Short Frame Sync
  • Interchip Digital Link (IDL)
  • General Circuit Interface (GCI)

ECCN / UNSPSC

There is no relevant information available for this part yet.


Environmental & Export Classifications

Moisture Sensitivity Level (MSL)

3 (168 Hours)

Lead Free Status / RoHS Status

Lead free / ROHS3 Compliant


Documents & Media

Datasheets

MC145481

HTML Datasheet

MC145481


Product Manufacturer

NXP Semiconductors N.V. is a Dutch global semiconductor manufacturer headquartered in Eindhoven, Netherlands. The company employs approximately 31,000 people in more than 35 countries, including 11,200 engineers in 33 countries. NXP reported revenue of $6.1 billion in 2015, including one month of revenue contribution from recently merged Freescale Semiconductor.

On October 27, 2016, it was announced that Qualcomm would try to buy NXP, but because the Chinese merger authority did not approve the acquisition before the deadline set by Qualcomm, it was effectively canceled on 26 July 2018.


Product Range

Devices

Boards

Developer Tools

ACAPs

Accelerator Cards

Vivado Design Suite - HLx Editions

FPGAs & 3D ICs

Evaluation Boards

SDAccel Development Environment

SoCs, MPSoCs & RFSoCs

System-on-Modules (SoMs)

SDSoC Development Environment


Distributors

Distributor

Stock

Manufacturer

Descriptions

Kynix

5737 PCS

NXP Semiconductors 

IC CODEC-FILTER PCM 3V 20-SOIC W

Digi-Key 

Limited Supply - Call

NXP Semiconductors 

IC CODEC-FILTER PCM 3V 20-SOICMin Qty:38 


Alternative Models

There is no relevant information available for this part yet.


Popularity by Region

There is no relevant information available for this part yet.


Market Price Analysis

There is no relevant information available for this part yet.


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