BCM3416
®
ADVANCED DIGITAL CABLE TUNER
FEATURES
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Supports 64 and 256 QAM
Input frequency range of 50 MHz through 860 MHz *
IF output range of 36 MHz through 44 MHz
High linearity across entire frequency range
Differential signals for high noise immunity
Eliminates need for image reject mixer
Highly integrated and cost-effective
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Minimal BOM with reference designs available
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IF AGC and frequency synthesizers included
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Standard logic CMOS with single 3.3V supply
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48-pin TQFP
SUMMARY OF BENEFITS
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Narrowband first IF eliminates processing of unnecessary
channels
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DOCSIS and EuroDOCSIS 1.0/1.1/2.0 compliant
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Minimal in-house RF expertise required
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Superior alternative to can tuners
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High quality and reliability (no hand tweaking)
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Enables lower profile and smaller designs
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Simplified manufacturing flow
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Lower BOM cost
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Applications
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Cable modems
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Cable set-top boxes
* = For use only in applications where the input frequency to the
diplexer is less than 1000 MHz.
Tuner Application Example (Cable Modem)
SDRAM
NB
SAW
SAW
FLASH
Diplex
Filter
50-860 MHz
50-860 MHz
BCM3401
LNA
BCM3416
CMOS Tuner
BCM3348
Single-Chip
DOCSIS/EuroDOCSIS
2.0 Cable Modem
5-65 MHz