PCM1728EG4

Series:	SoundPlus™
Packaging:	Tube
Part Status:	Not For New Designs
Type:	DAC, Audio
Number of Channels:	3
Resolution (Bits):	24 b
Sampling Rate (Per Second):	96k
Data Interface:	I²S
Voltage Supply Source:	Analog and Digital
Voltage - Supply:	5V
Operating Temperature:	-25°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	28-SSOP (0.209", 5.30mm Width)
Supplier Device Package:	28-SSOP
Base Part Number:	PCM1728

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Introduction

PCM1728EG4 is a special-purpose device designed for data acquisition applications and is designed as in Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs). This device is part of a family of innovative acquisition products from Linear Technology Corporation (LTC). As an ADC, PCM1728EG4 features an 8-bit resolution, 2-channel differential low-voltage differential signaling (LVDS) input and one 16-bit digital output. Its DAC counterparts offer a 14-bit resolution and support up to three stereo input and one stereo output. The device also has a power management feature with separate +/- supply enable pins.

Application Field

The PCM1728EG4 is ideally suited for data acquisition applications and is an ideal choice for systems requiring a high level of resolution and accuracy. Its 2-channel differential LVDS input allows for efficient data transfer from the acquisition source, as well as an enhanced level of immunity from electrical noise and electromagnetic interference. Additionally, its 14-bit DAC resolution provides excellent performance for high-resolution audio applications. PCM1728EG4 is also ideal for any application requiring a general-purpose data acquisition device, such as instrumentation and measurement, and medical equipment.

Working Principle

As an ADC, the PCM1728EG4 operates in two primary modes: single-ended or differential. In single-ended mode, the device controls a data/clock latch to hold the incoming data as it is converted, while in differential mode, the device senses the analog differential voltage between the two inputs and converts its magnitude and polarity into a corresponding digital representation. As a DAC, the device converts digital codes into an analog output voltage that is proportional to the input code. The device also contains power management features to conserve power while still providing necessary performance. The PCM1728EG4 can be operated from a single power supply of +2.5V to +3.3V, a +5V supply, or from dual supplies with voltage levels of +/-2.4V to +/-3.3V. Additionally, the device contains separate +/- supply enable pins that can be used to regulate the supply current and thus lower overall power consumption of the system.In summary, the PCM1728EG4 is an excellent choice for data acquisition applications requiring resolution and accuracy. Its differential LVDS input and 14-bit DAC resolution make it ideal for a wide range of audio, instrumentation, and medical applications, while its power management feature adds an additional level of system efficiency.

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