ISG510067

PRELIMINARY DATA SHEET ISG510067 DTV IF AGC AMPLIFIER FEATURES • 3.3 V SINGLE SUPPLY OPERATION • LOW POWER CONSUMPTION (330 mW) SAW FILTER FUNCTIONAL DIAGRAM • LOW DISTORTION • 85 dB TOTAL VOLTAGE GAIN • 54 dB TOTAL GAIN CONTROL RANGE • 25-100 MHZ OPERATION 1, X VDD 28,18 27,17 26,19 25, X 24,15 23,14 22,13 DESCRIPTION The ISG510067 consists of an input AGC amplifier and a video/AGC amplifier. The amplifiers are designed to interface directly with standard saw filters. 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 Ω load. There are two package options MLP28 and TSSOP 20. VIDEO AMP 21,16 2, 20 NC* 3, 1 NC* 4, X 20,11 VID OUT 19,12 OUTPUT MATCHING 18,10 VDD 5, X 17, 9 6, 2 VDD 7, 6 RF AMP 16, 8 15, 7 8, 3 9, 4 10, X 11, 5 12, X 13, X 14, X APPLICATIONS • Digital Terrestrial Tuners • Digital TV Sets. RF AGC ELECTRICAL CHARACTERISTICS SYMBOLS PARAMETERS AND CONDITIONS RF Performance RFIN GMAX VAGC AGC IM3 IFOUT NF GINPUT GVIDEO (TA = 25°C, VDD = 3.3 V, unless otherwise specified) UNITS MIN TYP MAX RF Input Frequency Range Maximum Gain* AGC Voltage AGC Dynamic Range VAGC = 0 to 3 V Third Order Intermodulation, 1 VPP Differential Output, 1K ohm load Third Order Intermodulation, 2 VPP Differential Output, 1K ohm load IF Output Level, Differential Output, 1K ohm load Noise Figure, VAGC = 3 V Input Amp Gain, VAGC = 3 V Video Amp Gain, VAGC = 3 V MHz dB V dB dBc dBc VPP dB dB dB V mA 43.75 85 0 54 60 48 1 13.5 44 55 3.3 100 100 3 DC Performance VDD Supply Voltage IDD Supply Current * Includes saw filter loss. ABSOLUTE MAXIMUM RATINGS (TC = 25°C unless otherwise noted) SYMBOLS VDD (GND) TOP TSTG PARAMETERS Supply Voltage (GND) Operating Temperature Storage Temperature Junction Temperature Thermal Resistance (Ø 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. REV. C 7/21/2004 1 ISG510067 PIN ASSIGNMENTS GND VIDEO AMP OUT 2 AMP OUT 1 VIDEO IN 2 VIDEO IN 1 GND GND GC 1 VDD RF 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 RF IN 1 RF IN 2 V AGC GC 2 2 20 VID OUT 2 GC 1 3 ISG 510067 ( MLP-28 ) ISG 510067 (TSSOP-20) 17 16 15 14 13 12 11 19 VID OUT 1 GND 4 18 VDD VID GND RF GND 5 17 VDD GND VDD RF GND RF 6 16 VDD VDD 7 15 GND 8 9 10 11 12 13 8 1 VDD VDD VID V AGC GND GND RF IN 1 PIN FUNCTIONS TSSOP-20 MLP-28 PIN NO. 7,16,19 PIN NO. 1, 4, 5, 10, 12,13,14, 15 21, 25, 26 2 3 6 7 8 9 11 16 17 18 19 PIN NAME GND GC1 GC2 VDD RF GND RF RF IN1 RF IN2 AGC VDD VDD VDD VID VID OUT1 DESCRIPTION Ground pins. Connect to the ground plane with shortest possible length to minimize inductance. Optional Gain control Optional Gain control INPUT AMP Supply, +3.3 V. INPUT AMP Ground. See GND. INPUT AMP Positive Input. Input Impedance 150 ohms. INPUT AMP Negative Input. Input Impedance 150 ohms. Automatic Gain Control, Min Gain @ AGC = 0 V, Max Gain @ AGC = 3.0 V. Supply Voltage, +3.3 V. Supply Voltage, +3.3 V. VIDEO AMP Input Stage Supply, +3.3 V. VIDEO AMP Negative Output. This pin and VID OUT2 form a 1K ohm ouput impedance. Open Drain - See Application Page 4. VIDEO AMP Positive Output. See VID OUT1. VIDEO AMP Ground. See GND. VIDEO AMP Negative Input. VIDEO AMP Positive Input. INPUT AMP Positive Output. Open Drain . See Application Page 4. INPUT AMP Negative Output. Open Drain .See Application Page 4. 20 1 2 6 3 4 5 8 9 10 12 11 13 14 15 17 18 20 22 23 24 27 28 RF IN 2 VID OUT2 GND VID VID IN1 VID IN2 AMP OUT1 AMP OUT2 GND GND REV. C 7/21/2004 2 ISG510067 TYPICAL PERFORMANCE CURVES OUTPUT SPECTRUM 10 ZL = 1 K Ω 0 80 90 ZL = 1 K Ω GAIN vs. AGC -10 Output (dBm) -20 -30 -40 -50 70 Gain (dB) 0 50 100 150 200 250 300 60 50 40 -60 -70 30 0 0.5 1 1.5 2 2.5 3 Frequency (MHz) AGC (V) IM3 vs. AGC 75 ZL = 1 K Ω 70 65 60 55 50 45 40 VOUT = 1 VPP VOUT = 2 VPP OUTPUT FLATNESS 10 5 0 POUT (dB) IM3 (dB) -5 -10 -15 -20 -25 -30 0 0.5 1 1.5 2 2.5 3 40 41 42 43 44 45 46 47 48 AGC (V) Frequency (MHz) IDD vs. VDD 0.16 0.14 0.12 45 40 35 NOISE FIGURE vs. AGC Noise Figure (dB) 0.1 30 25 20 15 10 IDD (A) 0.08 0.06 0.04 0.02 RF=110MHz 5 0 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0 0.5 1 1.5 2 2.5 3 VDD (V) AGC (V) REV. C 7/21/2004 3 ISG510067 TYPICAL APPLICATION CIRCUIT EPCOS X6864D SAW FILTER PIN Numbers MLP-28 , TSSOP-20 2K OHM 1uH VDD 1uH 28,18 27,17 26,19 25, X 24,15 23,14 22,13 0.1uF AMP OUT 2 AMP OUT 1 VIDEO IN 2 VIDEO IN 1 0 OHM 1, X GND VIDEO GND GND GND VIDEO AMP GND 21,16 2, 20 NC* 3, 1 NC* 4, X GC 2 VID OUT 2 20,11 4:1 200 OHM SPECTRUM ANALYZER 50 OHM GC 1 VID OUT 1 19,12 18,10 0.01uF GND VDD VIDEO VDD 0.1uF 5, X GND VDD 17, 9 0.01uF 6, 2 VDD 0.01uF 7, 6 VDD RF RF AMP VDD 16, 8 1000pF GND RF GND 15, 7 RF IN 1 RF IN 2 V AGC GND GND GND 8, 3 RF SOURCE 1000pF 9, 4 10, X 11, 5 12, X 13, X 14, X AGC 1M OHM 1M OHM 1000pF 10K OHM 0.01uF Input Amplifier This amplifier provides a maximum gain of 44 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 55 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 Ω load. Note: 1. 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. 2. Inserting a resistor between GC1 and GC2 will reduce overall gain of the RF Amp stage. (A 300 Ω resistor will reduce gain by approximately 10 dB.) GND REV. C 7/21/2004 4 ISG510067 PACKAGE INFORMATION MLP-28 (Units in mm) 1. 2. 3. 4. 5. 6. 7. Dimensions and tolerances conform to ASME Y14.5-1994. All dimensions are in millimeters. All angles are in degrees. N is the total number of terminals. The terminal numbering convention shall conform to JESD 95-1, SPP-012. The terminal #1 identifier may be either a mold or marked feature. Dimension b applies to metallized terminal and is measured between 0.25 and 0.3 mm from terminal tip. ND and NE refer to the number of terminals on each D and E side respectively. Co-planarity applies to the exposed heatsink slug as well as the terminals. REV. C 7/21/2004 5 ISG510067 PACKAGE INFORMATION MLP-28 (CON'T) COMMON DIMENSIONS SYMBOLS A1 A3 r b/2 MIN 0 NOM 0.02 0.20 REF MAX 0.05 VARIATIONS SYMBOLS A b D D2 E E2 e L N ND NE NOTE 0.45 28 7 7 1,2,4 3.00 3.00 MIN 0.80 0.18 NOM 0.90 0.23 5.00 BSC 3.15 5.00 BSC 3.15 0.50 BSC 0.55 0.65 3 6 6 3.25 3.25 MAX 1.00 0.30 5 NOTE TOLERANCES OF FORM AND POSITION aaa bbb ccc 0.25 0.1 0.1 SUMMARY TABLE & PIN #1 DIMENSIONS BODY SIZE (MM)(MM) 5.00x5.00 PITCH COUNT 0.50 LEAD 28 AA 0.435 BB 0.435 CC 0.18 DD 0.18 LAND PATTERN FOR TERMINALS AND THERMAL PAD ISG Broadband, Inc. • 1567 Centre Pointe Drive • Milpitas, CA 95035 • (408) 957-8000 • FAX (408) 957-8008 • www.isgbroadband.com DATA SUBJECT TO CHANGE WITHOUT NOTICE REV. C 7/21/2004 6 ISG510067 PACKAGE INFORMATION TSSOP-20 (CON'T) LAND PATTERN FOR TERMINALS AND THERMAL PAD TSSOP-20 (CON'T) ISG Broadband, Inc. • 1567 Centre Pointe Drive • Milpitas, CA 95035 • (408) 957-8000 • FAX (408) 957-8008 • www.isgbroadband.com DATA SUBJECT TO CHANGE WITHOUT NOTICE REV. C 7/21/2004 5-7 7