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Description
Product Category: IC Chips
The BCM3034A1IQM is a universal advanced downstream modulator for various applications including digital cable-TV head-ends, digital cable modem head-ends, digital microwave radio, SMATV, and MMDS. This highly integrated solution offers a cost-effective and space-saving option for modulators. It features an advanced downstream QAM modulator, an extended ITU-T J.83 Annex A/B/C FEC encoder, and a 10-bit D/A converter with power control. Additionally, it includes a second modulator for out-of-band signaling or CPE power control.
Specifications and features
- Integrated QAMLink Advanced downstream modulator
- Supports 4, 16, 32, 64, 128, 256, 512 and 1024 QAM
- Variable symbol rates up to 10 Mbaud
- Programmable 80-tap dual square-root Nyquist filters
- Programmable complex 24-tap T/2 pre-distortion filter
- Digital interpolation filters
- Quadrature direct digital frequency synthesizer and upconverter
- X/sinX filter for DAC distortion compensation
- Fully integrated ITU-T J.83 Annex A/B/C FEC encoder
- On chip 64K static RAM for interleaving
- Integrated 10-bit digital-to-analog converter
- Integrated additional burst modulator for power management of CPE equipment
- Optional 12- or 14-bit digital IF output for external DAC
- I2C or SPI-compatible microcontroller interface
- JTAG test interface
- 128-pin PQFP package
- Operates over industrial temperature range (-40 to +85 degrees C)
Application Scenarios
The BCM3034A1IQM can be used in various applications including digital cable-TV head-ends, digital cable modem head-ends, digital microwave radio, SMATV, and MMDS. It provides a cost-effective and space-saving solution for modulators in these applications.
Comparison
Advantages- Highly integrated solution reduces board space and cost
- Supports multiple QAM formats
- Variable symbol rates offer flexibility
- Programmable filters for optimal performance
- Includes additional modulator for out-of-band signaling or CPE power control
- Wide operating temperature range
Disadvantages- Requires external DAC for 12/14-bit digital IF output
- Specifically designed for downstream modulation
- Limited to 128-pin PQFP package
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download BCM3034A1IQM
- Chipdatas Part: CD86-BCM3034A1IQM
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/09/29 03:05 +0800
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