APS3602S29P8

APS3602 Active Splitter for CATV Set-Top Boxes PRELIMINARY DATA SHEET - Rev 1.0 FEATURES • • • • • • Single Input, Triple Output Design - Three Video Tuner Outputs 5 dB Typical Noise Figure at 5 dB Gain Wide Dynamic Range AGC Control, Independent for each Tuner Path High Linearity, Low Distortion Single +5 V Supply Balanced 75 Ohm Inputs/Outputs APPLICATIONS • CATV Set-Top Boxes with Multiple Tuners S29 Package 28 Pin QFN 5mm x 5mm x 1mm PRODUCT DESCRIPTION This active splitter from ANADIGICS accepts a balanced RF input in the 50 to 860 MHz frequency range and provides three balanced RF outputs with minimal degradation in signal quality. The singlepackage surface mount device amplifies the input signals using highly linear, low noise amplification stages, and couples the amplified signal to three separate output paths to drive video tuner inputs. Each of the output paths includes independent Automatic Gain Control (AGC). The overall linearity of each tuner path is maintained across a wide AGC range, ensuring low distortion effects on each output signal. Requiring only a single +5 Volt supply, the active splitter design is implemented using the ANADIGICS GaAs MESFET process. The surface mount packaging makes the device ideal for use in today’s multiple-tuner set-top boxes for Cable TV. AGC VID1 AGC VID2 AGC VID3 VID1OUT+ VID1OUTRFIN+ RFINVID2OUT+ VID2OUTVID3 OUT+ VID3 OUT- Figure 1: Functional Block Diagram 05/2004 APS3602 GND GND GND GND GND GND 23 28 27 26 25 24 22 21 20 19 18 17 16 15 VCC GND RFIN+ GND RFINGND AGC VID1 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 VID1OUT+ GND VID1OUTGND VID2OUT+ GND VID2OUT- VID3 OUT+ GND AGCVID2 Figure 2: Pinout (X-ray Top View) Table 1: Pin Description PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2 NAME V CC GND RFIN+ GND RFINGND AGCVID1 AGCVID2 AGCVID3 GND VID3OUT+ GND VID3OUTGND DESCRIPTION Supply Voltage Ground RF Input (+) Ground RF Input (-) Ground Video 1 AGC Control Input Video 2 AGC Control Input Video 3 AGC Control Input Ground Data Path Output (+) Ground Data Path Output (-) Ground PIN 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VID3 OUT- AGCVID3 GND GND NAME GND GND GND GND GND GND GND VID1OUT+ GND VID1OUTGND VID2OUT+ GND VID2OUT- DESCRIPTION Ground Ground Ground Ground Ground Ground Ground Video 1 Output (+) Ground Video 1 Output (-) Ground Video 2 Output (+) Ground Video 2 Output (-) PRELIMINARY DATA SHEET - Rev 1.0 05/2004 APS3602 ELECTRICAL CHARACTERISTICS Table 2: Absolute Minimum and Maximum Ratings PARAMETER Supply Voltage (VCC) AGC Input Voltage (VAGC) RF Input Power (PIN) MIN 0 0 MAX +8 +5 +25 UNIT V V dBmV differential into 75 Ω COMMENTS Stresses in excess of the absolute ratings may cause permanent damage. Functional operation is not implied under these conditions. Exposure to absolute ratings for extended periods of time may adversely affect reliability. Table 3: Operating Ranges PARAMETER Operating Frequency Supply Voltage (VCC) AGC Input Voltage (VAGC) RF Input Power (PIN) Case Temperature (TC) MIN 50 +0.3 -15 -20 TYP +5 - MAX 860 +3.0 +15 +85 UNIT MHz V V dBmV °C COMMENTS max. gain at +3 V differential into 75 Ω The device may be operated safely over these conditions; however, parametric performance is guaranteed only over the conditions defined in the electrical specifications. PRELIMINARY DATA SHEET - Rev 1.0 05/2004 3 APS3602 Table 4: DC Electrical Specifications (TC = +25 °C, VCC = +5 V, 75 Ω system) PARAMETER Current Consumption AGC Input Leakage Current MIN TYP 175 50 MAX UNIT mA µA COMMENTS from +5 V supply each AGC input Table 5: Video Tuner Path AC Electrical Specifications (TC = +25 °C, VCC = +5 V, 75 Ω system) PARAMETER Gain at Maximum AGC Gain at Minimum AGC Noise Figure CTB (1) MIN 4.5 - TYP 5 -21 4.8 -70 -70 -67 30 30 -8 75 MAX 6 -66 -66 - UNIT dB dB dB dB c dB c dB c dB dB dB Ω COMMENTS at maximum gain CSO (1) XMOD (1) - Isolation Between Output and Any Other Output Port Isolation Between Input and Output Input Return Loss Output Impedance 75 Ω differential input differential Notes: (1) 132 channels, +6 dBmV flat output, up to +15 dBmV flat input 4 PRELIMINARY DATA SHEET - Rev 1.0 05/2004 APS3602 PERFORMANCE DATA Figure 3: Gain vs. Frequency (TA = +25 °C, VCC = +5 V) 10 Figure 4: Input Return Loss vs. Frequency (TA = +25 °C, VCC = +5 V) -5 -6 5 S11: Input Return Loss (dB) -7 -8 -9 -10 -11 -12 -13 Vagc = +3.0 V Vagc = +2.0 V Vagc = +1.5 V Vagc = +1.0 V Vagc = 0 V 0 S21: Gain (dB) -5 Vagc = +3.0 V Vagc = +2.0 V Vagc = +1.5 V Vagc = +1.0 V Vagc = 0 V -10 -15 -20 -14 -15 0 100 200 300 400 500 600 700 800 900 1000 -25 0 100 200 300 400 500 600 700 800 900 1000 Frequency (MHz) Frequency (MHz) Figure 5: Output Return Loss vs. Frequency (TA = +25 °C, VCC = +5 V) 0 -25 -30 Figure 6: Reverse Isolation vs. Frequency (TA = +25 °C, VCC = +5 V) -5 S22: Output Return Loss (dB) -10 S12: Reverse Isolation (dB) -35 -40 -45 -50 -55 -60 -65 Vagc = +3.0 V Vagc = +2.0 V Vagc = +1.5 V Vagc = +1.0 V Vagc = 0 V -15 Vagc = +3.0 V Vagc = +2.0 V Vagc = +1.5 V Vagc = +1.0 V Vagc = 0 V -20 -25 -30 0 100 200 300 400 500 600 700 800 900 1000 -70 0 100 200 300 400 500 600 700 800 900 1000 Frequency (MHz) Frequency (MHz) PRELIMINARY DATA SHEET - Rev 1.0 05/2004 5 APS3602 Figure 7: CSO vs. Input Power (TA = +25 °C, VCC = +5 V, POUT = +6 dBmV, 132 channel flat input) -45 -50 -55 -60 77 MHz 445 MHz 865 MHz -45 -50 -55 -60 Figure 8: CTB vs. Input Power (TA = +25 °C, VCC = +5 V, POUT = +6 dBmV, 132 channel flat input) 77 MHz 445 MHz 865 MHz CSO (dBc) -65 -70 -75 -80 -85 -90 5 10 15 20 25 CTB (dBc) -65 -70 -75 -80 -85 -90 5 10 15 20 25 Input Power (dBmV) Input Power (dBmV) Figure 9: Output Port-to-Port Isolation vs. Frequency (TA = +25 °C, VCC = +5 V, POUT = +6 dBmV) -20 10 Figure 10: Gain vs. AGC Voltage (TA = +25 °C, VCC = +5 V) 5 -30 -40 0 Isolation (dB) -50 Gain (dB) Vagc = +3 V Vagc = 0 V 0 500 1000 1500 2000 2500 3000 -5 -60 -10 -70 -15 -80 -20 -90 -25 0 0.5 1 1.5 2 2.5 3 Frequency (MHz) AGC Voltage (V) 6 PRELIMINARY DATA SHEET - Rev 1.0 05/2004 28 27 26 25 23 22 24 APPLICATION INFORMATION GND GND GND GND GND GND GND +5 V +5 V 21 20 19 18 17 16 15 0.01uF 1 330pF 75W 270nH 270nH +5 V 0.01uF 75W VCC GND RFIN+ VID1OUTGND VID2OUT+ GND VID3 OUT+ AGCVID2 AGC VID3 75W 270nH 270nH 75W VID1OUT+ GND 330pF 2 Video 1 Ouput (75 Ohms) RF Input (75 Ohms) 3 4 0.01uF see note 0.01uF GND RFINGND VID3 OUT- 5 6 7 330pF 0.01uF Video 2 Ouput (75 Ohms) 330pF AGCVID1 GND GND GND 14 VID2OUT- AGCVID1 8 9 10 11 12 13 +5 V Figure 11: Application Circuit AGCVID2 AGCVID3 0.01uF 0.01uF 0.01uF 75W 75W 270nH 270nH 0.01uF 330pF Video 3 Ouput (75 Ohms) 330pF PRELIMINARY DATA SHEET - Rev 1.0 05/2004 NOTE: Optional resistor across input pins may be used to tune input return loss. APS3602 7 APS3602 PACKAGE OUTLINE Figure 12: S29 Package Outline - 28 Pin 5mm x 5mm x 1mm QFN 8 PRELIMINARY DATA SHEET - Rev 1.0 05/2004 APS3602 NOTES PRELIMINARY DATA SHEET - Rev 1.0 05/2004 9 APS3602 NOTES 10 PRELIMINARY DATA SHEET - Rev 1.0 05/2004 APS3602 NOTES PRELIMINARY DATA SHEET - Rev 1.0 05/2004 11 APS3602 ORDERING INFORMATION ORDER NUMBER TEMPERATURE RANGE -20 oC to +85 oC PACKAGE DESCRIPTION COMPONENT PACKAGING A P S 3602S 29P 8 28 P i n 5mm x 5mm x 1mm Tape and Reel, 2500 pieces per Reel QFN Package ANADIGICS, Inc. 141 Mount Bethel Road Warren, New Jersey 07059, U.S.A. Tel: +1 (908) 668-5000 Fax: +1 (908) 668-5132 URL: http://www.anadigics.com E-mail: Mktg@anadigics.com IMPORTANT NOTICE ANADIGICS, Inc. reserves the right to make changes to its products or to discontinue any product at any time without notice. The product specifications contained in Advanced Product Information sheets and Preliminary Data Sheets are subject to change prior to a product’s formal introduction. Information in Data Sheets have been carefully checked and are assumed to be reliable; however, ANADIGICS assumes no responsibilities for inaccuracies. ANADIGICS strongly urges customers to verify that the information they are using is current before placing orders. WARNING ANADIGICS products are not intended for use in life support appliances, devices or systems. Use of an ANADIGICS product in any such application without written consent is prohibited. 12 PRELIMINARY DATA SHEET - Rev 1.0 05/2004