PCM1719EG4

Series:	SoundPlus™
Packaging:	Tube
Part Status:	Obsolete
Type:	DAC, Audio
Number of Channels:	3
Resolution (Bits):	18 b
Sampling Rate (Per Second):	48k
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:	PCM1719

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Introduction

PCM1719EG4 is an Application Specific Integrated Circuit (ASIC) intended for Digital to Analog and Analog to Digital (DAC/ADC) conversion applications. This device provides up to 24 bits of resolution and increases system performance while reducing power and physical footprint. PCM1719EG4 features selectable dynamic range and signal-to-noise ratio, making it ideal for mixed signal communication systems, signal processing and other digital systems requiring high precision and accuracy.

Application Field

PCM1719EG4 can be used in a variety of applications, including:

• Consumer audio applications
• Multimedia and gaming.
• Communications systems
• Medical imaging
• Industrial monitoring and control
• Automotive applications
• Scientific and Aerospace.

The PCM1719EG4 is designed to improve system performance and accuracy of analog signal processing when compared to traditional approaches. The device is specifically designed for 24-bit resolution and has superior dynamic range and signal-to-noise ratio. This allows it to be effectively used in a variety of environments and applications.The PCM1719EG4 features digital attenuators, reference circuitry and digital gain control which enable high dynamic range operation in environments where signal levels may vary rapidly. This makes it well-suited for digital audio and multimedia applications where the signal needs to be precisely and accurately converted to digital formThe PCM1719EG4 features low-power operation and requires minimal power to operate, making it an ideal solution for battery-operated mobile devices.

Working Principle

The PCM1719EG4 employs a Delta-Sigma modulator, where the analog signal is sampled at a predetermined rate, and then it is compared with a reference signal. The conversion of the signal from analog to digital form is accomplished by quantizing the difference between the analog and reference signals. The PCM1719EG4 is designed to operate on a 3 V supply voltage and provides selectable AC or DC operation. The quantized output data is clocked out at a programmable rate up to 100 MHz. The PCM1719EG4 also contains reference circuitry and digital gain control, both of which are used to ensure that the signal being processed is correctly converted to digital form. The reference circuitry can be used to adjust the DC levels while the digital gain control allows the amplitude of the signal to be accurately adjusted.In addition, the PCM1719EG4 has a built-in digital low-pass filter to eliminate unwanted frequency components from the converted signal. This allows for a clean, noise-free digital output signal.

Conclusion

The PCM1719EG4 is an application specific integrated circuit ideal for applications requiring high precision and accuracy in digital to analog and analog to digital conversion. The device features selectable dynamic range, low-power operation and a built-in digital low-pass filter to reduce unwanted noise. These features allow the PCM1719EG4 to be used in a variety of consumer audio, multimedia, communications, medical, industrial and automotive applications.

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