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| DTV IF AGC AMPLIFIER FEATURES SINGLE 3.3 V SUPPLY OPERATION Low DISTORTION: -55dBC@1VPP 14-68 dB TOTAL VOLTAGE GAIN 54 dB TOTAL GAIN CONTROL RANGE 10-100 MHZ OPERATION S510067 FUNCTIONAL DIAGRAM DESCRIPTION The S510067 consists of an input Linear AGC amplifier and a video/AGC amplifier. The amplifiers are designed to interface directly with saw filters and A/D converters The AGC is delayed between the two blocks for optimal NF and IM3 performance across the full AGC range. The final stage is capable of providing 2 VPP into a 500 load. The part is offered in the QFN28 & 20 TSSOP package and is RoHS compliant. APPLICATIONS Digital Terrestrial Tuners Digital TV Sets. Digital Radios Digital Set top boxes. ELECTRICAL CHARACTERISTICS SYMBOLS RFIN RF Flatness Rfin GMAX VAGC AGC IM3 IFOUT Gain NF NF GINPUT GVIDEO PARAMETERS AND CONDITIONS RF Performance (TA = 25C, VDD = 3.3 V, unless otherwise specified) UNITS MHz dB dBmV dB V dB dBc VPP dB dB dB dB dB V mA MIN 10 TYP 43.75 0.5 22 72 54 55 1.2 13.5 30 39 47 3.3 100 2 2/1 32 MAX 100 25 3 RF Input Frequency Range Gain flaness RF input power range Maximum Gain* AGC Voltage AGC Dynamic Range VAGC = 0 to 3 V Third Order Intermodulation, 1 VPP Differential Output, 1K ohm load IF Output Level, Differential Output, 1K ohm load Change vs NF increase ratio Noise Figure, VAGC = 3 V Noise Figure, VAGC = 0 V Input Video Amp Gain, VAGC = 3 V Video Amp Gain, VAGC = 3 V 0 50 1 DC Performance VDD Supply Voltage IDD Supply Current * Includes saw filter loss. 125 ABSOLUTE MAXIMUM RATINGS (TC = 25C unless otherwise noted) SYMBOLS VDD (GND) TOP TSTG PARAMETERS Supply Voltage (GND) Operating Temperature Storage Temperature Junction Temperature Thermal Resistance (O ja) UNITS V C C C C/W RATINGS -0.3 to +3.6 -40 to +85 -65 to +150 +150 34 Note: 1. Operation in excess of any one of these parameters may result in permanent damage. Performance tests and ratings for Sirenza Microdevices products were performed internally by Sirenza and measured using specific computer systems and/or components and reflect the approximate performance of the products as measured by those tests. Any difference in circuit implementation, test software, or test equipment may affect actual performance. The information provided herein is believed to be reliable at press time and Sirenza Microdevices assumes no responsibility for the use of this information. All such use shall be entirely at the users own risk. Prices and specifications for Sirenza Microdevices products are subject to change without notice. Buyers should consult Sirenza Microdevices standard terms and conditions of sale for Sirenzas limited warranty with regard to its products. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any product for use in lifesupport devices and/or systems. 303 S. Technology Court, Broomfield, CO 80021 303-327-3030 1 www.sirenza.com EDS-104217 REV.G 11/7/2005 S510067 PIN ASSIGNMENTS GND VIDEO AMP OUT 2 AMP OUT 1 VIDEO IN 2 VIDEO IN 1 GND GND GC 1 VDD RF RF IN 1 RF IN 2 V AGC GND RF GND VDD VDD VDD VID 1 2 3 4 5 6 7 8 9 10 20 19 18 GC 2 GND AMP OUT 2 AMP OUT 1 GND VID IN 2 VID IN 1 GND VID VID OUT 1 VID OUT 2 28 27 26 25 24 23 22 GND 1 21 GND GC 2 2 20 VID OUT 2 S510065*-20Z (TSSOP-20) 17 16 15 14 13 12 11 GC 1 3 S510065*-55Z ( QFN-28 ) 19 VID OUT 1 GND 4 18 VDD VID GND 5 17 VDD VDD RF 6 16 VDD GND GND RF 7 15 8 9 10 11 12 13 14 V AGC GND GND RF IN 1 *The tape and reels will be marked as S510067. The part is tested to the specification in this document. PIN FUNCTIONS TSSOP-20 PIN NO. 7,16,19 20 1 2 6 3 4 5 8 9 10 12 11 13 14 15 17 18 QFN-28 PIN NO. 1, 4, 5, 10, 12,13,14, 15 21, 25, 26 2 3 6 7 8 9 11 16 17 18 19 20 22 23 24 27 28 PIN NAME GND DESCRIPTION Ground pins. Connect to the ground plane with shortest possible length to minimize inductance. 303 S. Technology Court, Broomfield, CO 80021 RF IN 2 NC Float do not connect. NC Float do not connect. VDD RF INPUT AMP Supply, +3.3 V. GND RFINPUT AMP Ground. See GND. RF IN1 RF AMP Positive Input. Input impedance, 1K ohms single ended. SEE APPLICATION PAGE 4. RF IN2 RF AMP Negative Input. SEE APPLICATION PAGE 4. AGC Automatic Gain Control, Min Gain @ AGC = 0 V, Max Gain @ AGC = 3.0 V. VDD Supply Voltage, +3.3 V. VDD Supply Voltage, +3.3 V. VDD VID VIDEO AMP Input Stage Supply, +3.3 V. VID OUT1 VIDEO AMP Negative Output. This pin and VID OUT2 form a 1K ohm output impedance. Open Drain - See Application Page 4. VID OUT2 VIDEO AMP Positive Output. See VID OUT1. GND VID VIDEO AMP Ground. See GND. VID IN1 VIDEO AMP Negative Input. VID IN2 VIDEO AMP Positive Input. AMP OUT1 INPUT AMP Positive Output. Open Drain . See Application Page 4. AMP OUT2 INPUT AMP Negative Output. Open Drain .See Application Page 4. GND GND 303-327-3030 2 www.sirenza.com EDS-104217 REV.G 11/7/2005 S510067 TYPICAL PERFORMANCE CURVES OUTPUT SPECTRUM 10 ZL = 1 K 0 -10 70 80 GAIN vs. AGC =/ . 60 Output (dBm) -20 -30 -40 -50 -60 -70 0 50 100 150 200 250 300 50 Gain (dB) 40 30 20 10 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (MHz) AGC (V) IM3 vs. AGC 70 ZL=1K OUTPUT FLATNESS 10 IM3 1Vp-p IM3 2Vp-p 60 50 5 0 IM3 (dBc) 40 POUT (dB) 0 0.5 1 1.5 2 2.5 3 -5 -10 -15 -20 30 20 10 -25 -30 40 41 42 43 44 45 46 47 48 0 AGC (V) Frequency (MHz) IDD vs. VDD 0.16 0.14 0.12 30.0 NOISE FIGURE vs. AGC 25.0 ZL=1K Noise Figure (dB) 20.0 0.1 IDD (A) 0.08 0.06 0.04 0.02 0 0 0.5 1 1.5 2 2.5 3 3.5 4 15.0 10.0 5.0 RF=110MHz 0.0 0.00 0.50 1.00 1.50 2.00 2.50 3.00 VDD (V) AGC (V) 303 S. Technology Court, Broomfield, CO 80021 303-327-3030 3 www.sirenza.com EDS-104217 REV.G 11/7/2005 S510067 TYPICAL APPLICATION CIRCUIT Input Amplifier This amplifier provides a maximum gain of 39 dB. The gain is controlled by applying a DC voltage (from 0 to 3 V) to the AGC pin, providing 27 dB of range. The output stage current can be set between 10 mA (R = 20) and 30 mA (R = 0) by connecting an external resistor from pin 1 to ground. Video Amplifier This amplifier provides a maximum gain of 47 dB. The gain is controlled by applying a DC voltage (from 0 to 3 V) to the AGC pin, providing 27 dB of range. The outputs of the video amp are both open drain and require pull-up inductors to VDD. Up to 2 VPP can be delivered into a 500 load. The input amplifier and video amplifier are controlled by a single AGC so the overall dynamic range is the sum of the input amplifier range and the video amplifier range. 303 S. Technology Court, Broomfield, CO 80021 303-327-3030 4 www.sirenza.com EDS-104217 REV.G 11/7/2005 S510067 PACKAGE INFORMATION QFN-28 (Units in mm) 1. 2. 3. Dimensions and tolerances conform to ASME Y14.5-1994. All dimensions are in millimeters. All angles are in degrees. The exposed thermal pad is also an electrical ground . LAND PATTERN FOR TERMINALS AND THERMAL/GROUND PAD 303 S. Technology Court, Broomfield, CO 80021 303-327-3030 5 www.sirenza.com EDS-104217 REV.G 11/7/2005 S510067 PACKAGE INFORMATION TSSOP-20 (CON'T) LAND PATTERN FOR TSSOP-20 (CON'T) 303 S. Technology Court, Broomfield, CO 80021 303-327-3030 EDS-104217 REV.H 6 www.sirenza.com EDS-104217 REV.G 11/7/2005 |
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