Realtek

ALC892 Datasheet PDF – 7.1+2 Channel HD Audio Codec

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Part Number: ALC892

Function: HD Audio Codec

Package: LQFP 36 Pin Type

Manufacturer: Realtek Semiconductor

Image:

ALC892 datasheet

Description

This is 7.1+2 Channel HD Audio Codec with Content Protection.

The ALC892, ALC892-DTS-CG is a high-performance multi-channel High Definition Audio Codec with Realtek proprietary lossless content protection technology that protects pre-recorded content while still allowing full-rate audio enjoyment from DVD audio, Blu-ray DVD, or HD DVD discs.

Hardware

Features

1. DACs with 95dB SNR(A-weighting), ADCs with 90dB SNR ( A-weighting )

2. Two stereo ADCs support 16/20/24-bit PCM format, multiple stereo recording

3. 1dB per step output volume and input volume control

Software

Features

1. Meets Microsoft WLP 3.x and future WLP audio requirments

2. WaveRT-based audio function driver for Windows Vista and Windows 7

3. Direct Sound 3D compatible

4. Voice Cancellation and Key Shifting effect

Pinouts:

components

Other data sheets are available within the file: ALC892CG, ALC892-DTS-CG

ALC892 Datasheet PDF Download


ALC892 pdf

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RTL2832 Datasheet PDF – DVB-T COFDM Demodulator, 48Pin

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This is one of the semiconductor types.

This part name is RTL2832, RTL2832U.

This product has A/D converter, USB salve interface DVB-T COFDM Demodulator functions.

Package: QFN 48 Pin, 6 mm square chip.

The manufacturer of the product is Realtek Semiconductor.

Image :
RTL2832 datasheet

Some of the text files within the PDF file :

Description

The Realtek RTL2832 is a 6 mm square chip (QFN) with 12 pins per side. It uses 3.3 Volts and a 28.8 MHz crystal. The chip’s datasheet comes with a non-disclosure agreement. The IC is a DVB-T COFDM  Demodulator. DVB-T stands for Digital Video Broadcasting: Terrestrial and COFDM stands for Coded Orthogonal Frequency-Division Multiplexing. The “U” in the name stands for the USB  (2.0)  interface.  USB uses 4 pins:  +Voltage,  D-, D+, and ground.  A USB extension cord is recommended  with RTL-SDR to keep the radio away from computer generated noise. The RTL2832U contains eight general purpose input/output ports and an infrared remote control port.

The RTL2832 is an IC produced by Realtek Corporation to demodulate DVB-T (digital TV) signals and send them to a host computer over the USB bus. It has an additional mode designed to allow reception of consumer FM radio, and this is achieved by capturing I/Q samples and forwarding them to the host computer for demodulation and playback. ( RTL2832U Info Realtek.com.tw  )

RTL2832 Datasheet
The RTL2832 is a high-performance DVB-T COFDM demodulator that supports a USB 2.0 interface. The RTL2832U complies with NorDig Unified 1.0.3, D-Book 5.0, and EN300 744 (ETSI Specification). It supports 2K or 8K mode with 6, 7, and 8MHz bandwidth. Modulation parameters, e.g., code rate, and guard interval, are automatically detected.

The RTL2832U supports tuners at IF (Intermediate Frequency, 36.125MHz), low-IF (4.57MHz), or Zero-IF output using a 28.8MHz crystal, and includes FM/DAB/DAB+ Radio Support. Embedded with an advanced ADC (Analog-to-Digital Converter), the RTL2832U features high stability in portable reception.

The state-of-the-art RTL2832U features Realtek proprietary algorithms (patent-pending), including superior channel estimation, co-channel interface rejection, long echo channel reception, and impulse noise cancellation, and provides an ideal solution for a wide range of applications for PC-TV, such as USB dongle and MiniCard/USB, and embedded system via USB interface.

Reference Site:

1. https://www.reddit.com/comments/1uazsw

2. https://www.amateur-radio-wiki.net/rtl2832/

There is a non-public datasheet.

RTL2832 Datasheet

RTL2832 pdf