MAX2118 |
RFQ for MAX2118 Required Field |
 |
| Product | Manufacturers | Pack | D/C |
| MAX2118 | - | - | 05+ |
The MAX2116/MAX2118 family of low-cost directconversion tuner ICs are designed for use in digital direct broadcast satellite (DBS) television applications, professional VSAT systems, and two-way Internet through satellite applications. These devices set the standard for integration and performance, significantly reducing the required RF know-how for design implementation. Uniquely architected, the MAX2116/MAX2118 simplify direct main board and tuner module designs.
The MAX2116/MAX2118 devices directly convert Lband signals to baseband using a broadband I/Q downconverter. The operating frequency range extends from 925MHz to 2175MHz.
Each IC includes an LNA with gain control, I and Q downconverting mixers, and baseband lowpass filters gain and cutoff frequency control. Together, the RF and baseband variable gain amplifiers provide more than 79dB of gain control range.
The devices include fully monolithic VCOs, as well as a complete frequency synthesizer. Additionally, an onchip 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. For multituner applications, each device can be configured to have one of eight possible 2-wire interface addresses.
Simplifying the interface to low-voltage CMOS demodulators, the MAX2116/MAX2118 incorporate two 2.85V regulated outputs for pulling up open-drain interface connections, thus preventing noisy 3V rails from corrupting the sensitive analog signal of the tuners.
The MAX2116/MAX2118 devices are the most versatile family of DBS products available. With both singleended and differential baseband outputs, these
Typical Application |
Features |
| ·DVB·DSS (U.S.)·VSAT·Internet Through Satellite | ·Fully Integrated VCOs·Supports 1Mbaud to 45Mbaud, 925MHz to 2175MHz Operation·4MHz to 33MHz Tunable LP Filters·Complete Synthesizer with I2C™ Interface·Analog RF VGA and Digital Baseband VGA·Multiple I2C Addresses for Multituner Applications·Single-Ended (MAX2116) and Differential (MAX2118) I/Q Interface |
VCC to GND..........................................................-0.3V to +5.5V
All Other Pins to GND.................................-0.3V to (VCC + 0.3V)
RFIN+ to RFIN-, XTL+ to XTL-, IDC+ to IDC-,
QDC+ to QDC- ..................................................................±2.0V
CNTOUT, XTALOUT, CPOUT, VREG1/2,
I/QOUT± to GND Short-Circuit Duration.................................10s
Continuous Current (any pin other than VCC or GND) .......10mA
Continuous Power Dissipation (TA = +85°C)
40-Pin Thin QFN (derate 23.3mW/°C above +85°C) ...... 1.86W
Operating Temperature Range ............................0°C to +85°C
Junction Temperature ....................................................+150°C
Storage Temperature Range ..........................-65°C to +160°C
Soldering Temperature (10s) .........................................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
