19-1806; Rev 1; 8/03 KIT ATION EVALU E L B A IL AVA Broadband, Two-Output, Low-Noise Amplifier for TV Tuner Applications Features ♦ +5V Single-Supply Operation ♦ 44MHz to 878MHz Operating Frequency Range ♦ Guaranteed 7.4dB (min) Input Return Loss Over Frequency Range ♦ LNA Performance at ICC = 93mA (RBIAS = 15kΩ) 15dB Gain 2.8dB Noise Figure +17.5dBm Input IP3 +27dBm Input IP2 +2.7dBm Input 1dB Compression Point Set-Top Boxes ♦ Loop-Out Amplifier Performance at ICC = 93mA (RBIAS = 15kΩ) 8.7dB Gain 4.2dB Noise Figure +17dBm Input IP3 +29dBm Input IP2 -0.5dBm Input 1dB Compression Point Cable Modems ♦ Programmable Linearity vs. Supply Current ________________________Applications DVB-T Digital Broadcast Receivers Digital/Terrestrial TV Tuners Analog TV Tuners Ordering Information PART MAX2130EUA Pin Configuration appears at end of data sheet. TEMP RANGE PIN-PACKAGE -40°C to +85°C 8 µMAX-EP* *Exposed paddle Typical Operating Circuit VCC CHOKE MURATA BLM11A221S OUT1 VCC VCC 10µF 1000pF 47pF RADJ LNA OUTPUT GND IN INPUT 0.1µF 1.2V BIAS DAC VADJ 1000pF 0.1µF MAX2130 OPTIONAL: DYNAMIC LINEARITY ADJUSTMENT CIRCUIT 220pF RBIAS 15kΩ GND GND LOOP-OUT OUTPUT OUT2 0.1µF ________________________________________________________________ Maxim Integrated Products 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. 1 MAX2130 General Description The MAX2130 broadband, low-distortion, low-noise, two-output amplifier performs preamp, loop-out, and buffer functions in TV tuner applications. The device integrates functions typically achieved with discrete components into the space-saving 8-pin µMAX-EP package. The MAX2130 provides a gain of +15dB with a noise figure less than 3.2dB over the 44MHz to 878MHz frequency range. The MAX2130 features an externally adjustable bias control, set with a single resistor, that allows the user to meet minimum linearity requirements while reducing current consumption. The device operates from a +5V single supply and only requires 93mA of supply current when nominally biased. MAX2130 Broadband, Two-Output, Low-Noise Amplifier for TV Tuner Applications ABSOLUTE MAXIMUM RATINGS VCC to GND ..............................................................-0.3V to +6V BIAS, OUT2 to GND .....................................-0.3 to (VCC + 0.3V) IN Input Power................................................................+15dBm OUT1 to GND ...........................................................-0.3V to +6V OUT2 Short-Circuit Duration ......................................Continuous Continuous Power Dissipation (TA = +70°C) 8-Pin µMAX-EP (derate 15.4mW/°C above +70°C) ........1.2W Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 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. CAUTION! ESD SENSITIVE DEVICE DC ELECTRICAL CHARACTERISTICS (VCC = +4.75V to +5.25V, TA = -40°C to +85°C, RBIAS = 15kΩ TA = +25°C, unless otherwise noted.) PARAMETER ±1%; CONDITIONS Supply Voltage Supply Current no input signals applied. Typical values are at VCC = +5V, MIN TYP 4.75 TA = +25°C 93 RBIAS = 30kΩ 49 BIAS = unconnected 10 MAX UNITS 5.25 V 104 mA AC ELECTRICAL CHARACTERISTICS (MAX2130 EV kit, VCC = +4.75V to +5.25V, RBIAS = 15kΩ TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER ±1%, fIN = 500MHz, ZO = 75Ω. Typical values are at VCC = +5V, CONDITIONS MIN TYP MAX UNITS 878 MHz 16.6 dB LOW-NOISE AMPLIFIER (LNA) Operating Frequency Range 44 Gain (Note 2) Gain Flatness TA = -40°C to +85°C (Note 2) 13.4 Noise Figure Input 1dB Compression Point 2.8 2.7 0.8 dB 3.2 dB dBm VCC = +3.5V (Note 3) 2.1 Input Third-Order Intercept Point (Note 4) 17.5 dBm Input Second-Order Intercept Point (Note 5) 27 dBm IN Return Loss (Notes 2, 6) 8.6 dB OUT1 Return Loss fIN = 44MHz to 878MHz 8.7 dB 7.4 Maximum Load for Stable Operation OUT1 to IN Isolation 2 15 Any load (Note 2) 18 21 _______________________________________________________________________________________ dB Broadband, Two-Output, Low-Noise Amplifier for TV Tuner Applications (MAX2130 EV kit, VCC = +4.75V to +5.25V, RBIAS = 15kΩ TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER ±1%, fIN = 500MHz, ZO = 75Ω. Typical values are at VCC = +5V, CONDITIONS MIN TYP MAX UNITS 878 MHz 8.7 10.2 dB 4.2 4.6 dB LOOP-OUT AMPLIFIER Operating Frequency Range 44 Gain (Note 2) 7.1 Noise Figure -0.5 Input 1dB Compression Point VCC = +3.5V (Note 3) Input Third-Order Intercept Point (Note 4) 17 dBm Input Second-Order Intercept Point (Note 5) 29 dBm OUT2 Return Loss fIN = 44MHz to 878MHz 16.6 dB Maximum Load for Stable Operation Any load OUT2 to IN Isolation OUT2 to OUT1 Isolation Note 1: Note 2: Note 3: Note 4: Note 5: Note 6: dBm -3.7 (Note 2) (Note 2) 24.5 11.0 27 12.5 dB dB Specifications are guaranteed by design and characterization, except for gain which is production tested. Specifications are guaranteed over the operating frequency range. Operation possible with VCC = +3.5V. See Typical Operating Characteristics. Two tones at 500MHz and 506MHz, -20dBm per tone. Two tones at 500MHz and 550MHz, -20dBm per tone. Output load has worst-case 6dB return loss. Typical Operating Characteristics (MAX2130 EV kit, VCC = +5V, RBIAS = 15kΩ ±1%, TA = +25°C, unless otherwise noted.) 94 93 92 91 14 100 90 80 10 35 TEMPERATURE (°C) 60 85 11 8 50 -15 12 9 60 -40 13 10 70 88 15 110 90 89 LNA 16 GAIN (dB) 95 MAX2130 toc03 120 SUPPLY CURRENT (mA) 96 17 MAX2130 toc02 97 SUPPLY CURRENT (mA) 130 MAX2130 toc01 98 GAIN vs. FREQUENCY RBIAS = 10kΩ SUPPLY CURRENT vs. RBIAS SUPPLY CURRENT vs. TEMPERATURE LOOP-OUT AMPLIFIER 7 10.0 12.5 15.0 17.5 RBIAS (kΩ) 20.0 22.5 25.0 0 200 400 600 800 1000 FREQUENCY (MHz) _______________________________________________________________________________________ 3 MAX2130 AC ELECTRICAL CHARACTERISTICS (continued) Typical Operating Characteristics (continued) (MAX2130 EV kit, VCC = +5V, RBIAS = 15kΩ ±1%, TA = +25°C, unless otherwise noted.) TA = +25°C 14 TA = +85°C 13 12 11 13 12 11 10 9 9 8 600 800 1000 200 FREQUENCY (MHz) 4 TA = +25°C TA = -40°C 600 800 1000 0 LOOP-OUT AMPLIFIER 4.0 0 400 600 800 3.0 2.5 LNA 3 1 0 -1 -2 1.0 -3 0.5 -4 LOOP-OUT AMPLIFIER -5 10.0 12.5 15.0 17.5 20.0 22.5 25.0 -40 -15 10 35 60 TEMPERATURE (°C) INPUT P1dB vs. RBIAS INPUT IP2 vs. TEMPERATURE LNA INPUT IP2 vs. RBIAS 34 33 0 -1 -2 31 LOOP-OUT AMPLIFIER 30 29 27 LOOP-OUT AMPLIFIER -4 26 -5 25 15.0 17.5 RBIAS (kΩ) 20.0 22.5 25.0 85 100MHz 32 28 -3 40 INPUT IP2 (dBm) INPUT IP2 (dBm) 1 45 MAX2130 toc11 2 35 MAX2130 toc10 LNA 1000 2 RBIAS (kΩ) 3 12.5 LNA 4 1.5 1000 800 INPUT P1dB vs. TEMPERATURE 3.5 2.0 600 FREQUENCY (MHz) 4 10.0 400 5 0 200 200 FREQUENCY (MHz) 4.5 1 0 TA = -40°C NOISE FIGURE vs. RBIAS NOISE FIGURE (dB) TA = +85°C 5 NOISE FIGURE (dB) 400 5.0 MAX2130 toc07 6 2 TA = +25°C FREQUENCY (MHz) LOOP-OUT AMPLIFIER NOISE FIGURE vs. FREQUENCY 3 2 0 0 INPUT P1dB (dBm) 400 MAX2130 toc08 200 3 LOOP-OUT AMPLIFIER 7 0 TA = +85°C 1 8 LOOP-OUT AMPLIFIER 7 4 4 MAX2130 toc12 10 TA = -40°C TA = +25°C TA = +85°C 15 GAIN (dB) GAIN (dB) 14 MAX2130 toc09 15 LNA 16 5 NOISE FIGURE (dB) LNA 16 LNA NOISE FIGURE vs. FREQUENCY 17 MAX2130 toc05 TA = -40°C MAX2130 toc04 17 GAIN vs. FREQUENCY RBIAS = 25kΩ MAX2130 toc06 GAIN vs. FREQUENCY RBIAS = 15kΩ INPUT P1dB (dBm) MAX2130 Broadband, Two-Output, Low-Noise Amplifier for TV Tuner Applications 35 30 600MHz 25 20 800MHz LNA 15 -40 -15 10 35 TEMPERATURE (°C) 60 85 10 15 20 RBIAS (kΩ) _______________________________________________________________________________________ 25 Broadband, Two-Output, Low-Noise Amplifier for TV Tuner Applications 100MHz 40 18.5 20 MAX2130-14 19.0 MAX2130 toc13 45 LNA 600MHz 18 35 600MHz 30 INPUT IP3 (dBm) 18.0 INPUT IP3 (dBm) 17.5 17.0 16.5 16 100MHz 14 LOOP-OUT AMPLIFIER 800MHz 16.0 12 25 15.5 15 20 -40 25 -15 10 35 60 10 85 15 20 25 RBIAS (kΩ) TEMPERATURE (°C) RBIAS (kΩ) LOOP-OUT AMPLIFIER INPUT IP3 vs. RBIAS ISOLATION vs. FREQUENCY IN PORT RETURN LOSS vs. FREQUENCY -10 ISOLATION (dB) 18 OUT2 TO OUT1 16 14 100MHz 40 OUT1 TO IN Zo = 75Ω 35 RETURN LOSS (dB) 600MHz MAX2130 toc17 0 MAX2130 toc16 20 -20 -30 OUT2 TO IN -40 30 25 20 15 10 12 -50 5 800MHz 10 -60 15 20 25 0 0 200 RBIAS (kΩ) 400 600 800 1000 0 200 FREQUENCY (MHz) OUT1 PORT RETURN LOSS vs. FREQUENCY 20 Zo = 75Ω 400 600 800 1000 FREQUENCY (MHz) OUT2 PORT RETURN LOSS vs. FREQUENCY 50 MAX2130 toc19 40 15 10 5 Zo = 75Ω 45 RETURN LOSS (dB) 10 RETURN LOSS (dB) INPUT IP3 (dBm) 10 15.0 10 MAX2130 toc18 800MHz 20 MAX2130 toc20 INPUT IP2 (dBm) LNA INPUT IP3 vs. RBIAS INPUT IP3 vs. TEMPERATURE MAX2130 toc15 LOOP-OUT AMPLIFIER INPUT IP2 vs. RBIAS 35 30 25 20 15 10 5 0 0 0 200 400 600 FREQUENCY (MHz) 800 1000 0 200 400 600 800 1000 FREQUENCY (MHz) _______________________________________________________________________________________ 5 MAX2130 Typical Operating Characteristics (continued) (MAX2130 EV kit, VCC = +5V, RBIAS = 15kΩ ±1%, TA = +25°C, unless otherwise noted.) Broadband, Two-Output, Low-Noise Amplifier for TV Tuner Applications MAX2130 Pin Description PIN NAME FUNCTION 1 VCC 2 IN 3 BIAS Bias-Setting Resistor Connection. Connect a resistor, RBIAS, from BIAS to GND to set the linearity and supply current of the LNA and the loop-out amplifier. 4, 6, 7, EP GND Ground. Connect to ground plane with a low-inductance connection. Solder exposed paddle evenly to the board groundplane. 5 OUT2 Output of Loop-Out Amplifier. Requires a 0.1µF DC-blocking capacitor. (See Typical Application Circuit.) 8 OUT1 Open-Collector Output of Low-Noise Amplifier. Requires a pullup inductor to VCC, as well as a 0.1µF DC-blocking capacitor. (See Typical Application Circuit.) Supply Voltage Input. Bypass with a 1000pF capacitor in parallel with a 47pF capacitor as close to the pin as possible. (See Typical Application Circuit.) Broadband Input to Low-Noise Amplifier and Loop-Out Amplifier. Internally matched to 75Ω. Requires 0.1µF DC-blocking capacitor. (See Typical Application Circuit.) Detailed Description The MAX2130 is a broadband, high-gain, low-distortion low-noise amplifier (LNA) with two outputs intended for operation over the 44MHz to 878MHz frequency range. The device operates from a +5V supply and features externally adjustable bias control circuitry that allows minimum linearity requirements to be met while reducing current consumption. Input The IN port is a broadband 75Ω input that provides a guaranteed minimum input return loss of 7.4dB (allowing for 2:1 VSWR at output) across the 44MHz to 878MHz frequency range. AC-couple the IN port with a 0.1µF DC-blocking capacitor. resistor value to improve linearity at the cost of increased supply current. Increase the resistor value to decrease supply current and degrade linearity. Use resistor values greater than 10kΩ. Gain is not significantly affected by the RBIAS value. Applications Information Inductor Selection The OUT1 port of the LNA requires a pull-up inductor to VCC for proper biasing. The exact value of the inductor is not important as long as it has broadband impedance >150Ω (<500Ω) at 10MHz across the 44MHz to 878MHz frequency band. Table 1 is a list of recommended inductors. Outputs The OUT1 port is a broadband, 75Ω, open-collector output for the LNA. It requires a pullup inductor to VCC for proper biasing, as well as a 0.1µF DC-blocking capacitor. See the Applications Information section for proper inductor selection. The OUT2 port is a broadband, 75Ω output for the loopout amplifier. The loop-out amplifier is internally biased and does not require a pullup inductor. AC-couple the OUT2 port with a 0.1µF DC-blocking capacitor. Table 1. OUT1 Pullup Inductor Recommended Components PART NUMBER BLM11A221S MANUFACTURER Murata BLM11A471SG Murata BLM10A221SG Murata BLM21A331SG Murata Bias Circuitry The linearity and supply current for both amplifiers are externally programmable with a single resistor, RBIAS, from BIAS to GND. A nominal resistor value of 15kΩ sets an input IP3 of +17.5dBm, an input IP2 of +27dBm, and a supply current of 93mA. Decrease the 6 _______________________________________________________________________________________ Broadband, Two-Output, Low-Noise Amplifier for TV Tuner Applications The DAC output voltage, VADJ, required to set an equivalent resistance to ground, REQ, seen by the BIAS port, can be calculated with the following equation: VADJ = 2.4V - (RBIAS ✕ VBIAS) / REQ where RADJ = RBIAS, VBIAS = 1.2V, REQ ≥ 10kΩ. Power-Supply Bypassing Proper voltage-supply bypassing is essential for highfrequency circuit stability. Bypass the VCC pin with a 1000pF capacitor in parallel with a 47pF capacitor, located as close to the VCC pin as possible. Refer to the MAX2130 EV kit for additional information. Pin Configuration Chip Information TRANSISTOR COUNT: 167 TOP VIEW VCC 1 8 OUT1 7 GND 3 6 GND GND 4 5 OUT2 IN 2 MAX2130 BIAS µMAX-EP _______________________________________________________________________________________ 7 MAX2130 Dynamic Linearity Adjustment The LNA and loop-out amplifier linearity can be dynamically adjusted by varying the amount of current sourced by the BIAS port. The BIAS port is internally biased to 1.2V. A resistor, RBIAS, connected from BIAS to ground sets the bias current. An additional resistor, RADJ, placed from the BIAS port to an external voltage source, such as a digital-to-analog converter (DAC), varies the current sourced by the BIAS port. Choosing RADJ = RBIAS = 20kΩ and varying the voltage of the DAC from ground to 2.4V effectively varies the resistance seen from the BIAS port from 10kΩ to an open circuit. See Typical Application Circuit. Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 8L, µMAX, EXP PAD.EPS MAX2130 Broadband, Two-Output, Low-Noise Amplifier for TV Tuner Applications Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.