BCM3033KEF

The BCM3033KEF  is one member of the BCM3033 series.BCM3033KEF has the following features including BCM3033 is a universal headend QAM modulator;Integrated 10-bit digital-to-analog converter;Compatible with Broadcom's QAMLink receivers;BSC or SPI-compatible microcontroller interface;JTAG test interface;120-pin PQFP package.

The BCM3033 QAMLink Universal Modulator is a highlyintegrated solution that significantly decreases the board space and cost of modulators in digital cable TV headends, digital cable modem headends, digital microwave radio, SMATV and MMDS applications. Integrated features in the BCM3033KEF include an integrated ITU-T J.83 Annex A (DVB/DAVIC/ IEEE802.14),Annex B (DigiCipher® II/SCTE/DOCSIS/EuroDOCSIS/IEEE802.14),and Annex C (Japan) FEC encoder, a QAM modulator and a D/A converter. The encoder provides coding gain and burst error correction and can be programmed to comply with the ITU-T J.83 Annex A, Annex B and Annex C coding standards.Baseband filtering and quadrature upconversion of the resulting signal is provided by the integrated QAM modulator, which can achieve IF frequencies of up to half the output sample rate.The QAM modulator is rate adaptable up to 7 megabaud and supports 4-, 16-, 32-, 64-, 128-, and 256-QAM. triple linear-phase square-root Nyquist baseband filters are in the QAM modulator and have a programmable excess bandwidth factor of 12%, 15% or 18%. The QAM modulator also has an X/sinX filter that compensates for DAC distortion. The integrated DAC in the BCM3033 is a 10-bit, 114-MS/s DAC with differential analog outputs.

The information given about BCM3033KEF herein, including the specifications and dimensions, is subject to change without prior notice to improve product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version of the datasheet(s).In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment,medical equipment, and safety equipment), safety should be ensured by using semiconductor devices that feature assured safety or by means of users' fail-safe precautions or other arrangement.In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during operation of the user's units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual property claims or any other problems that may result from applications of information, products or circuits described in the datasheets.