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MAX3580
Direct-Conversion TV Tuner
Silicon TV Tuner Saves Power, Eliminates SAW Filters
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Status
Active: In Production.
Description
The MAX3580 fully integrated, direct-conversion TV tuner is designed for Digital Video Broadcasting-Terrestrial (DVB-T) applications. The integrated tuner covers a 170MHz to 230MHz input frequency range for the VHF-III band and 470MHz to 878MHz for the UHF band.
The MAX3580 direct-conversion tuner integrates an RF input switch and a multiband tracking filter, allowing low-power tuner-on-board applications without the cost and power-dissipation issues of dual-conversion tuner solutions. The zero-IF architecture eliminates the need for SAW filters by providing baseband I and Q outputs directly to the demodulator. In addition, DC-offset cancellation is implemented on-chip using a mixed-signal architecture to improve the second-order distortion performance and the dynamic range of the downstream digitizer and demodulator.
The MAX3580 features dynamic gain control of more than 76dB and a typical midband noise figure of 4.7dB referred to the LNA input. The VCO architecture optimizes both in-band and wideband phase noise for OFDM applications where sensitivity to both 1kHz phase noise and wideband phase noise related to strong adjacents can be a problem.
The MAX3580 communicates using a 2-wire serial bus. The device operates from a typical +3.3V power supply and dissipates 650mW. The MAX3580 is available in a small 32-pin thin QFN package (5mm x 5mm) with an exposed paddle.
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Data Sheet
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An evaluation kit is available: MAX3580EVKIT NOTE: This product uses the following:MAX3580 EVKIT Software
Key Features
- 650mW Power Dissipation (at VCC = +3.3V)
- I and Q Baseband Outputs Eliminate All IF-SAW Filters
- Integrated RF Tracking Filters
- Tunable Baseband Lowpass Filters
- Full-Band VHF-III and UHF Tuning
- +38dB Digital ACPR, +47dB Analog ACPR
- Low Noise Figure: 4.7dB (typ)
- Frac-N Synthesizer for -90dBc/Hz Close-In Phase Noise
- +3.1V to +3.5V Supply Voltage Range
- Ultra-Small, 5mm x 5mm Thin QFN Package
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Applications/Uses
- Automotive Televisions
- Digital Televisions
- Digital Terrestrial Set-Tops
- Laptop Televisions
- USB Peripherals
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Key Specifications:
| STB and TV Tuners |
| Part Number |
Ref. Clock Freq.
(MHz) |
IF fOUT
(MHz) |
Noise Figure
(dB) |
VSUPPLY
(V) |
ISUPPLY
(mA) |
Applications |
fIN |
Features |
Footprint
(mm x mm) |
Package/Pins |
Industry Qualified |
| typ |
| MAX3580 |
4 to 27 |
8 |
4.7 |
3.1 to 3.5 |
200 |
DVB-T, GB20600 |
170 to 230 and 470 to 878 |
| -90dBc phase noise @ 10kHz | | 76dB of gain control range | | Integrated RF tracking filter | | variable LPF |
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5.0 x 5.0 |
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Automotive - General |
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See All STB and TV Tuners (17)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Functional Diagram
Application Notes
Product Guides
Reliability Reports
Software/Models
Ordering Information
This product cannot be purchased through our web site. Contact factory for availability.
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Information Index
Document Ref.: 19-0611
Rev 9;
2010-03-31
This page last modified: 2010-03-31
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