PCM1748KEG4

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	DAC, Audio
Number of Channels:	2
Resolution (Bits):	24 b
Sampling Rate (Per Second):	100k
Data Interface:	I²S
Voltage Supply Source:	Analog and Digital
Voltage - Supply:	3 V ~ 3.6 V, 5V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Supplier Device Package:	16-SSOP
Base Part Number:	PCM1748

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PCM1748KEG4 Application Field and Working Principle

The PCM1748KEG4 is a special type of Data Acquisition (DAQ) system meant for converting analog voltages into digital values. It is a complete system which also includes Digital to Analog Converters (DACs) and Analog-to-Digital Converters (ADCs). This system is primarily intended for applications in the audio industry, providing a means for recording, mixing, and producing audio-related products.The PCM1748KEG4 is equipped with 4x 4-channel ADCs and 4x 4-channel DACs. Each channel of the PCM1748KEG4 has 12-bit resolution providing an effective output resolution of 44kHz with a sampling rate of 88.2 kHz for ADCs and 88.2 kHz for DACs. By up-sampling this resolution, the PCM1748KEG4 can effectively provide a resolution of 176.4 kHz for the ADCs and a resolution of 176.4 kHz for the DACs. The PCM1748KEG4 provides a wide variety of features, including a 64-tap digital filter, digital volume control, headroom control, and gain control. These features allow users to customize their audio experience according to their individual needs. Additionally, the system includes an I2S/TDM interface which enables communication via a standard API. The PCM1748KEG4\'s working principle is based on the principle of converting analog input signals into digital values for processing. This is accomplished by sampling the analog signals at specific intervals, then converting it into quantized digital values. More specifically, the PCM1748KEG4 uses pulse-code modulation (PCM) and delta-sigma (Delta-Sigma) modulation to do the analog-to-digital (A/D) and digital-to-analog (D/A) conversion. To analog signals, the PCM1748KEG4 applies a low-pass filter in order to remove any unwanted frequencies, then proceeds with the actual conversion process by way of pulse-code modulation. The resulting digital data is then output in either I2S or TDM format, depending on the user’s preference.Delta-sigma modulation is similarly used to convert digital values into analog values. The process begins by comparing the input digital value to a reference value, then generating four commands which are used to calculate the output voltage or current. The PCM1748KEG4 utilizes four of these commands, the appropriate ones being selected depending on the desired output.To ensure the highest-quality of sound reproduction possible, the PCM1748KEG4 incorporates a number of features to maintain the quality of its audio signals. These include a noise shaping circuit which serves to reduce background noise, as well as a slew rate control unit which serves to reduce distortion resulting from mismatched frequency responses. Additionally, the PCM1748KEG4 supports bridge-coupled power amplification which allows it to produce high-quality sound without compromising sound clarity.To sum up, the PCM1748KEG4 is an ideal data acquisition system for those who require high-quality audio reproduction. Its unique combination of technologies, such as PCM, Delta-sigma modulation, and noise shaping, maximize its sound reproduction potential. Furthermore, its range of features and support for I2S/TDM communication protocols make it a suitable choice for applications in the audio industry.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description