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BCM3419 Datasheet(PDF) 1 Page - Broadcom Corporation. |
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BCM3419 Datasheet(HTML) 1 Page - Broadcom Corporation. |
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1 / 1 page BCM3419 ® ADVANCED LOW IF DIRECT CONVERSION CABLE TUNER Tuner Application Example (Cable Modem) • Single-chip direct conversion silicon tuner completes system design with Broadcom cable modem • DOCSIS ®/EuroDOCSIS™ 1.0/1.1/2.0 • Supports 64, 256, and 1024 QAM • Input frequency range of 50 MHz through 860 MHz IF (intermediate frequency) output range of 4 MHz, 4.5 MHz, and 5 MHz • For use in 6-MHz, 7-MHz, and 8-MHz systems • High linearity across entire frequency range • Differential signals for high noise immunity • Integrated and cost-effective BOM: • True single-chip tuner • Single 3.3V supply voltage • Fully integrated oscillator • Fully integrated channel selectivity • Symmetrical IF output for direct connection to channel decoder • RSSI (Received Strength Signal Indicator) information provided through I2C bus • Standby mode • 40-pin MLF package • Extreme integration level leads to highly cost-effective BOM • Eliminates significant external components: • SAW (Surface Acoustic Wave) IF filters • RSSI measurement components • IF amplifiers • Oscillator components • Package optimization enables low-cost 2-layer system PCB • Minimal in-house RF expertise required • Support for DOCSIS/EuroDOCSIS 2.0 enables one device solution to be used worldwide • Superior alternative to can tuners • High quality and reliability (no hand tweaking) • Enables lower profile and smaller designs • Proven reference design for quick time-to-market • Simplified manufacturing flow • Single supply voltage provides low-cost operation • Low-power consumption • • Cable Modems • Cable Gateways • Voice Cable Modems APPL IC ATI O N S FE A T URE S SU MM AR Y O F B E N E F I TS |
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