PRELIMINARY DATA SHEET ISG510067 DTV IF AGC AMPLIFIER FEATURES FUNCTIONAL DIAGRAM • 3.3 V SINGLE SUPPLY OPERATION • LOW POWER CONSUMPTION (330 mW) SAW FILTER • LOW DISTORTION • 85 dB TOTAL VOLTAGE GAIN VDD • 54 dB TOTAL GAIN CONTROL RANGE 28,18 27,17 26,19 25, X 24,15 23,14 22,13 • 25-100 MHZ OPERATION 1, X DESCRIPTION 21,16 VIDEO AMP 2, 20 20,11 3, 1 19,12 4, X 18,10 5, X 17, 9 VID OUT NC* OUTPUT MATCHING NC* 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. VDD 6, 2 16, 8 RF AMP VDD 7, 6 15, 7 8, 3 APPLICATIONS 9, 4 10, X 11, 5 12, X RF 13, X 14, X AGC • Digital Terrestrial Tuners • Digital TV Sets. ELECTRICAL CHARACTERISTICS (TA = 25°C, VDD = 3.3 V, unless otherwise specified) SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX 43.75 85 100 RF Performance RFIN GMAX VAGC AGC IM3 IFOUT NF GINPUT GVIDEO 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 DC Performance VDD Supply Voltage IDD Supply Current * MHz dB V dB dBc dBc VPP dB dB dB V mA 0 3 54 60 48 1 13.5 44 55 3.3 100 Includes saw filter loss. ABSOLUTE MAXIMUM RATINGS (TC = 25°C unless otherwise noted) UNITS RATINGS VDD (GND) SYMBOLS Supply Voltage (GND) PARAMETERS V -0.3 to +3.6 TOP Operating Temperature °C -40 to +85 TSTG Storage Temperature °C -65 to +150 Junction Temperature °C +150 °C/W 34 Thermal Resistance (Ø ja) Note: 1. Operation in excess of any one of these parameters may result in permanent damage. REV. C 1 7/21/2004 ISG510067 AMP OUT 2 AMP OUT 1 GND GND VIDEO IN 2 VIDEO IN 1 GND VIDEO PIN ASSIGNMENTS 28 27 26 25 24 23 22 GND 1 21 GND GC 2 2 20 VID OUT 2 GC 1 3 GND 4 GND VDD RF 19 ( MLP-28 ) 17 VDD 6 16 VDD 7 15 GND 12 13 8 1 GND 11 GND 10 GND RF IN 1 9 V AGC 5 GND VDD VID 8 1 20 GC 2 VDD RF 2 19 GND RF IN 1 3 18 AMP OUT 2 RF IN 2 4 ISG 510067 17 AMP OUT 1 V AGC 5 (TSSOP-20) 16 GND GND RF 6 15 VID IN 2 GND 7 14 VID IN 1 VDD 8 13 GND VID VDD 9 12 VID OUT 1 VDD VID 10 11 VID OUT 2 VID OUT 1 18 RF IN 2 GND RF ISG 510067 GC 1 PIN FUNCTIONS TSSOP-20 MLP-28 PIN NO. 7,16,19 20 1 2 6 3 4 5 8 9 10 12 11 13 14 15 17 18 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 DESCRIPTION GND Ground pins. Connect to the ground plane with shortest possible length to minimize inductance. GC1 GC2 VDD RF GND RF RF IN1 RF IN2 AGC VDD VDD VDD VID VID OUT1 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. VID OUT2 GND VID VID IN1 VID IN2 AMP OUT1 AMP OUT2 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. REV. C 2 7/21/2004 ISG510067 TYPICAL PERFORMANCE CURVES GAIN vs. AGC OUTPUT SPECTRUM 10 90 ZL = 1 K Ω ZL = 1 K Ω 0 80 70 -20 Gain (dB) Output (dBm) -10 -30 -40 60 50 -50 40 -60 -70 30 0 50 100 150 200 250 300 0 0.5 1 1.5 Frequency (MHz) OUTPUT FLATNESS VOUT = 2 VPP 5 65 0 60 -5 POUT (dB) IM3 (dB) 70 3 10 VOUT = 1 VPP ZL = 1 K Ω 2.5 AGC (V) IM3 vs. AGC 75 2 55 50 -10 -15 45 -20 40 -25 -30 0 0.5 1 1.5 2 2.5 40 3 41 42 44 45 46 47 48 Frequency (MHz) AGC (V) NOISE FIGURE vs. AGC IDD vs. VDD 45 0.14 40 0.12 35 Noise Figure (dB) 0.16 0.1 IDD (A) 43 0.08 0.06 0.04 30 25 20 15 10 RF=110MHz 0.02 5 0 0 0.5 1 1.5 2 2.5 3 3.5 0 4 0 VDD (V) 0.5 1 1.5 2 2.5 3 AGC (V) REV. C 3 7/21/2004 ISG510067 TYPICAL APPLICATION CIRCUIT EPCOS X6864D SAW FILTER PIN Numbers MLP-28 , TSSOP-20 2K OHM 1uH VDD 1, X 23,14 22,13 GND 2, 20 NC* 3, 1 NC* 4, X GND VIDEO 24,15 VIDEO IN 1 25, X VIDEO IN 2 GND AMP OUT 2 0 OHM 27,17 26,19 AMP OUT 1 28,18 0.1uF GND 1uH VIDEO AMP GND GC 2 VID OUT 2 GC 1 VID OUT 1 GND VDD VIDEO 21,16 20,11 4:1 VDD GND SPECTRUM ANALYZER 50 OHM 19,12 VDD 18,10 0.01uF 5, X 200 OHM 0.1uF 17, 9 0.01uF 6, 2 VDD 7, 6 VDD RF SOURCE 16, 8 1000pF GND V AGC GND GND GND GND RF IN 2 GND RF RF IN 1 0.01uF RF AMP VDD RF 8, 3 9, 4 10, X 11, 5 12, X 13, X 14, X 15, 7 1000pF AGC 1M OHM 1M OHM 10K OHM 1000pF 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.) REV. C 4 7/21/2004 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 5 7/21/2004 ISG510067 PACKAGE INFORMATION MLP-28 (CON'T) COMMON DIMENSIONS VARIATIONS SYMBOLS MIN NOM MAX SYMBOLS MIN NOM MAX A1 0 0.02 0.05 A 0.80 0.90 1.00 b 0.18 0.23 0.30 A3 r 0.20 REF D b/2 D2 TOLERANCES OF FORM AND POSITION aaa 0.25 bbb 0.1 ccc 0.1 BODY SIZE (MM)(MM) PITCH COUNT LEAD AA BB CC DD 5.00x5.00 0.50 28 0.435 0.435 0.18 0.18 3.15 3.25 5.00 BSC 3.00 e SUMMARY TABLE & PIN #1 DIMENSIONS 5 5.00 BSC 3.00 E E2 NOTE 3.15 3.25 0.50 BSC L 0.45 N 28 0.55 0.65 3 ND 7 6 NE 7 6 NOTE 1,2,4 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 6 7/21/2004 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 5-7 7 7/21/2004