CXD2820R Circuit Board Chips Original Electronics DBS Audio Signal Processor

CXD2820R Circuit Board Chips DBS Audio Signal Processor

Description

The CXD2820R are audio signal processors designed for DBS applications.

These LSIs perform all digital processing from QPSK demodulation to analog audio output on a single chip.

Features

QPSK and PCM demodulators and DAC output are configured on a single chip.

Descrambler interface according to the COATEC system and SkyPort system

Functions

QPSK demodulator

• Carrier, clock and data regeneration

• ALC and VCXO adjustment-free

PCM demodulator

• Frame sync protection by correlation detection

• De-interleaving and descrambling

• BCH error correction, range bit error correction

• Audio data range control Expansion from 10 to 14 bits in A mode Upper bit majority correction in B mode • Control sign integration correction, chargeable flag integration correction by master frame synchronization

• Interface output for external DAC

• Digital interface output 1-bit DAC output

• Quadruple oversampling filter

• Digital de-emphasis circuit

• 1-bit stereo

DAC with 2nd-order ∆∑ format noise shaper S/N ratio : 90dB (Typ.)

Distortion : 0.011% (Typ.)

CPU interface

• I2C bus Descrambler interface

• COATEC system,

SkyPort system Mute functions

• Error occurrence frequency detection mute

• Audio chargeable flag detection mute

• Control sign (B7) detection mute

           King--- Originator of ANTERWELL, engaged in the IC electronics industry in 1998 and establish ANTERWELL in 2004. The company is located in Shenzhen Huaqiang North, the largest electronic center in Asia. Our main business is the technical development and electronic products import and export business. Currently, we have branches in Hong Kong and Malaysia.

           Up to now. ANTERWELL have more than 1,000,000 types of electronic components in stock. ANTERWELL has become one of the top choices for purchasing IC chips both domestically and internationally. King is a senior IC chip expert, sales engineer, and mentor, leading an elite team with customer first, quality first, honesty, trustworthiness, and mutual benefit. We look forward to cooperate with you to create a better future!

            ANTERWELL’s main products include semiconductors, resistors, capacitors, diodes, inductors, connectors, transistors, sensors, etc. Involving the major well-known brands such like: TI, XILINX, FAIRCHILD, STM, MICRON, MICROCHIP, TDK, SAMSUNG, ON, NXP,IR,ADI, ATMEL,VISHAY,LINEAR etc.

            ANTERWELL adheres to the development concept and purpose of "direct stock offer, excellent quality, favorable price, and sincere service", which is deeply recognized by domestic and foreign customers. Based on the long-term development goal, ANTERWELL provides customers with standardized, professional, and diversified high-quality services through a strong market service network. ANTEWRELL has multiple skilled and capable executives with a professional QC team and excellent sales team to win the high support and trust of the vast customer base! We provide the best quality, price and service.

           ANTERWELL will be your best Partner.