MAX2112CTI+ by Analog Devices

Complete, Direct-Conversion Tuner for DVB-S2 Applications

Status: Active
Series: MAX2112
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX2112 low-cost, direct-conversion tuner IC is designed for satellite set-top and VSAT applications. The IC is intended for 8PSK and Digital Video Broadcast (DVB-S2) applications. The MAX2112 directly converts the satellite signals from the LNB to baseband using a broadband I/Q downconverter. The operating frequency range extends from 925MHz to 2175MHz. The device includes an LNA and an RF variable-gain amplifier, I and Q downconverting mixers, and baseband lowpass filters with programmable cutoff frequency control and digitally controlled baseband variable-gain amplifiers. Together, the RF and baseband variable-gain amplifiers provide more than 80dB of gain control range. The IC is compatible with virtually all DVB-S2 demodulators. The MAX2112 includes fully monolithic VCOs, as well as a complete fractional-N frequency synthesizer. Additionally, an on-chip crystal oscillator is provided along with a buffered output for driving additional tuners and demodulators. Synthesizer programming and device configuration are accomplished with a 2-wire serial interface. The IC features a VCO autoselect (VAS) function that automatically selects the proper VCO. For multituner applications, the device can be configured to have one of two 2-wire interface addresses. A low-power standby mode is available whereupon the signal path is shut down while leaving the reference oscillator, digital interface, and buffer circuits active, providing a method to reduce power in single and multituner applications. The MAX2112 is the most advanced DBS tuner available today. The low noise figure eliminates the need for an external LNA. A small number of passive components are needed to form a complete DVB-S2 RF front-end solution. The tuner is available in a very small 28-pin thin QFN package.

Where to Buy

Prices starting from US$6.16

Distributor Stock
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Analog Devices
from US$6.16
2,776
in stock
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Newark Electronics
from US$9.89
0
in stock
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element14
from US$10.29
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Farnell
from US$9.47
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Features

925MHz to 2175MHz Frequency Range
Monolithic VCO Low Phase Noise: -97dBc/Hz at 10kHz No Calibration Required
Low Phase Noise: -97dBc/Hz at 10kHz
No Calibration Required
High Dynamic Range: -75dBm to 0dBm
Integrated Variable BW LP Filters: 4MHz to 40MHz
Single +3.3V ±5% Supply
Low-Power Standby Mode
Address Pin for Multituner Applications
Differential I/Q Interface
I²C 2-Wire Serial Interface
Very Small 28-Pin TQFN Package

Specifications

End Equipment DVB-S2
Input Frequency (MHz) 925 to 2175
IF Output Frequency (MHz) 40
Ref. Clock Freq. (MHz) 12 to 30
Noise Figure (dB) (typ) 8
VSUPPLY (V) 3.13 to 3.47
ISUPPLY (mA) 100
Footprint (mm x mm) 5.0 x 5.0
Oper. Temp. (°C) -40 to +850 to +70
Package/Pins TQFN/28
BudgetaryPrice (See Notes) 4.92

Last 6 months Inventory & Pricing History

MAX2112CTI+ Semiconductors - ICs by Analog Devices

DIRECT-CONVERSION TUNER DVB-S2 TQFN-28

Semiconductors - ICs
> TV Tuners
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

Complete, Direct-Conversion Tu | Analog Devices
Direct-Conversion Tuner, Dvb-S2, Tqfn-28 | Newark Electronics
DIRECT-CONVERSION TUNER, DVB-S2, TQFN-28 | element14

Frequently Asked Questions

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Is the MAX2112CTI+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX2112CTI+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX2112CTI+ .

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