|
|
Part: MAX2116
Category:
Communication
-> Wireless
Description: MAX2116, MAX2118 Complete DBS Direct-conversion Tuner Ics With Monolithic Vcos
Company: Maxim Integrated Products
Datasheet: Download MAX2116 datasheet File size : 594 kB
Request For quote: Find where to buy MAX2116
Datasheet text preview:
19-2433; Rev 0; 4/02
Complete DBS Direct-Conversion Tuner ICs with Monolithic VCOs
General Description
T h e MAX2116/MAX2118 family of low-cost directconversion tuner ICs are designed for use in digital direct broadcast satellite (DBS) television applications, p r o f e s s i o n a l 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. T h e MAX2116/MAX2118 devices directly convert Lb a n d 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 f a m i l y of DBS products available. With both singlee n d e d and differential baseband outputs, these devices are compatible with virtually all QPSK/8-PSK demodulators. The tuners are available in a very small 40-pin QFN package. o Fully Integrated VCOs o Supports 1Mbaud to 45Mbaud, 925MHz to 2175MHz Operation o 4MHz to 33MHz Tunable LP Filters o Complete Synthesizer with I2CTM Interface o Analog RF VGA and Digital Baseband VGA o Multiple I2C Addresses for Multituner Applications o Single-Ended (MAX2116) and Differential (MAX2118) I/Q Interface
Features
MAX2116/MAX2118
Ordering Information
PART MAX2116UGL MAX2118UGL TEMP RANGE 0°C to +85°C 0°C to +85°C PIN-PACKAGE 40 QFN-EP* (6mm 6mm) 40 QFN-EP* (6mm 6mm)
*EP = exposed pad.
Pin Configuration/ Functional Diagram
IOUT(MAX2118 ONLY) QOUT(MAX2118 ONLY) VCCRF2 VCCBB QOUT+ IOUT+ QDC+ QDC-
40
39
38
37
36
35
34
33
32
31
N.C.
AS0
IDC-
1 DC OFFSET CORRECTION LPF BW CONTROL
30
VCCDIG
IDC+
2 DAC
29
SCL
VCCRF1
3
GC2 DIV2/ DIV4
INTERFACE LOGIC AND CONTROL
28
VREG2
RFIN-
4
27
SDA
Applications
DVB DSS (U.S.) VSAT Internet Through Satellite
RFIN+
5
26
AS1
N.C.
MAX2118
6 /N 7 PFD /R 24 25
N.C.
GC1
XTALOUT
VREG1
8
VOLTAGE REGULATOR ADC CP
23
CNTOUT
N.C.
9 TANK TANK TANK TANK TANK TANK TANK TANK
22
XTAL-
PAD 10
21
XTAL+
11 N.C.
12 VCCLO
13 VCCVCO
14 LOFLT
15 AS2
16 VTUNE
17 CPOUT
18 IFLT
19 VCCCPX
20 CFLT
I2C is a trademark of Philips Corp.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Complete DBS Direct-Conversion Tuner ICs with Monolithic VCOs MAX2116/MAX2118
ABSOLUTE MAXIMUM RATINGS
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 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.
DC ELECTRICAL CHARACTERISTICS
(VCC = +4.75V to +5.25V, GND = 0V, GC1 = +0.75V; no AC signal applied, default register settings, TA = 0°C to +85°C, unless otherwise noted. Typical values are at VCC = +5V, TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER SUPPLY Supply Voltage Supply Current ANALOG GAIN CONTROL INPUT--GC1 Usable Voltage Range Input Current Nominal Output Voltage Swing Output Clipping Voltage DC Output Voltage BASEBAND OUTPUTS-- IOUT±, QOUT± (MAX2118) Nominal Output Voltage Swing Output Clipping Voltage Common-Mode Voltage DC Offset Voltage ANALOG OUTPUT-- VREG1, VREG2 Output Voltage Source Current STATIC CONTROL INPUTS--AS2, AS1, AS0 Input Voltage High Input Voltage Low Input Current SYNTHESIZER DC PARAMETERS Bits CP1 = 0, CP0 = 0 Charge Pump Source/Sink Current Bits CP1 = 0, CP0 = 1 Bits CP1 = 1, CP0 = 0 Bits CP1 = 1, CP0 = 1 ±35 ±70 ±140 ±280 ±50 ±100 ±200 ±400 ±68 ±136 ±272 ±544 µA -50 4 0.5 +50 V V µA Each output 2.7 2.85 3.05 3 V mA 0.65 -50 RLOAD = 2k // 10pF (differential) (Note 3) Bit DL = high Bit DL = low 1 0.59 2 0.75 0 0.85 +50 VP-P VP-P V mV 0.75V < GC1 < 2.6V (Note 2) RLOAD = 1k // 10pF (Note 3) BASEBAND OUTPUTS-- IOUT, QOUT (MAX2116) 0.8 2 1.2 VP-P VP-P V 0.75 -50 2.6 +50 V µA LO locked at 2175MHz 4.75 195 5.25 265 V mA CONDITIONS MIN TYP MAX UNITS
2
_______________________________________________________________________________________
Complete DBS Direct-Conversion Tuner ICs with Monolithic VCOs
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = +4.75V to +5.25V, GND = 0V, GC1 = +0.75V, no AC signal applied, default register settings, TA = 0°C to +85°C, unless otherwise noted. Typical values are at VCC = +5V, TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER Charge Pump Off-Leakage Current Charge Pump Output Voltage Compliance I2C INTERFACE--SDA, SCL Clock Rate Input Logic Level Low Input Logic Level High Input Hysteresis Input Current Output Logic Level Low VTUNE ADC Resolution Input Voltage Range (Note 4) 110 to 111 101 to 110 ADC Reference Ladder Trip Point ADC read bits 100 to 101 011 to 100 010 to 011 001 to 010 000 to 001 0 VCC 0.70 2.8 1.91 1.29 0.87 0.60 0.40 VCC 0.65 2.97 2.03 1.38 0.94 0.65 0.44 3 VCC VCC 0.60 3.14 2.15 1.47 1.01 0.70 0.48 V Bits V 6mA sink current -10 0.6 2.3 0.2 +10 400 1.5 kHz V V V µA V Charge-pump positive-to-negative current matching of ±10% CONDITIONS MIN -10 0.4 TYP MAX +10 VCC 0.6 UNITS nA V
MAX2116/MAX2118
AC ELECTRICAL CHARACTERISTICS
(MAX2116/MAX2118 EV kits, VCC = +4.75V to +5.25V, GC1 and GC2 set for maximum gain, GND = 0V, IOUT = QOUT = 800mVP-P (MAX2116), loaded with 1k IOUT± = QOUT± = 590mVP-P differential (DL = 0, MAX2118), IOUT± = QOUT± = 1VP-P differential (DL = 1, MAX2118), loaded with differential 2k. Baseband LPF BW = 33MHz, fRFIN = 2175MHz. For default register values, see the Serial Interface and Control Registers section. TA = +25°C to +85°C. Typical values are at VCC = +5V, TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER RF FRONT END RF Input Frequency Range TA = 0°C to +85°C GC1 = 0.75V (max gain), bits GC2(4) - GC2(0) = 00000 (max gain), for output 800 mVP-P GC1 = 2.6V (min gain), bits GC2(4) - GC2(0) = 11111 (min gain), for output 800mVP-P 3 925 -77 2175 -72 dBm 16 MHz CONDITIONS MIN TYP MAX UNITS
Input Carrier Levels Necessary to Produce 800mVP-P at I/Q Baseband Outputs (MAX2116)
_______________________________________________________________________________________
3
Others parts begin by ma
|
|
|
