APS3604 Active Splitter for CATV Set-Top Boxes PRELIMINARY DATA SHEET - Rev 1.0 FEATURES • Single Input, Triple Output Design - Three Video Tuner Outputs • Wideband Operation: To Above 1 GHz • 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 • RoHS Compliant/Lead Free APPLICATIONS • CATV Set-Top Boxes with Multiple Tuners S29 Package 28 Pin QFN 5 mm x 5 mm x 1 mm PRODUCT DESCRIPTION This active splitter from ANADIGICS accepts a balanced RF input in the 50 MHz to 1.1 GHz 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. 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. Each of the output paths includes independent Automatic Gain Control (AGC). The overall linearity AGC VID1 AGC VID2 AGC VID3 VID1OUT+ VID1OUTRFIN+ RFIN- VID2OUT+ VID2OUTVID3 OUT+ VID3 OUT- Figure 1: Functional Block Diagram 11/2004 GND GND GND GND GND GND GND APS3604 28 27 26 25 24 23 22 GND RFIN+ 3 19 VID1OUT- GND 4 18 GND RFIN- 5 17 VID2OUT+ GND 6 16 GND AGC VID1 7 15 VID2OUT- 8 9 10 11 12 13 14 GND 20 VID3 OUT- 2 GND GND GND VID1OUT+ VID3 OUT+ 21 AGCVID3 1 AGCVID2 VCC Figure 2: Pinout (X-ray Top View) Table 1: Pin Description 2 PIN NAME DESCRIPTION PIN NAME DESCRIPTION 1 V CC Supply Voltage 28 GND Ground 2 GND Ground 27 GND Ground 3 RFIN+ RF Input (+) 26 GND Ground 4 GND Ground 25 GND Ground 5 RFIN- RF Input (-) 24 GND Ground 6 GND Ground 23 GND Ground 7 AGCVID1 Video 1 AGC Control Input 22 GND Ground 8 AGCVID2 Video 2 AGC Control Input 21 VID1OUT+ Video 1 Output (+) 9 AGCVID3 Video 3 AGC Control Input 20 GND Ground 10 GND Ground 19 VID1OUT- Video 1 Output (-) 11 VID3OUT+ Data Path Output (+) 18 GND Ground 12 GND Ground 17 VID2OUT+ Video 2 Output (+) 13 VID3OUT- Data Path Output (-) 16 GND Ground 14 GND Ground 15 VID2OUT- Video 2 Output (-) PRELIMINARY DATA SHEET - Rev 1.0 11/2004 APS3604 ELECTRICAL CHARACTERISTICS Table 2: Absolute Minimum and Maximum Ratings PARAMETER MIN MAX UNIT Supply Voltage (VCC) 0 +8 V AGC Input Voltage (VAGC) 0 +5 V RF Input Power (PIN) - +25 dBmV COMMENTS differential into 75 Ω 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 MIN TYP MAX UNIT 50 - 1100 MHz - +5 - V AGC Input Voltage (VAGC) +0.3 - +3.0 V RF Input Power (PIN) -15 - +15 Case Temperature (TC) -20 - +85 Operating Frequency (f) Supply Voltage (VCC) COMMENTS max. gain at +3 V dBmV differential into 75 V °C 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 11/2004 3 APS3604 Table 4: DC Electrical Specifications (TC = +25 °C, VCC = +5 V, 75 Ω system) MIN TYP MAX UNIT Current Consumption - 175 - mA from +5 V supply AGC Input Leakage Current - 50 - µA each AGC input PARAMETER COMMENTS Table 5: Video Tuner Path AC Electrical Specifications (TC = +25 °C, VCC = +5 V, 75 Ω system) PARAMETER MIN TYP MAX UNIT Gain at Maximum AGC 4.5 5 - dB Gain at Minimum AGC - -23 - dB Noise Figure - 4.8 6 dB CTB - -70 -66 dB c - -70 -66 dB c - -67 - dB c Isolation Between Output and Any Other Output Port - 30 - dB Isolation Between Input and Output - 30 - dB Input Return Loss - -8 - dB 75 V differential input Output Impedance - 75 - V differential (1) CSO (1) XMOD (1) Notes: (1) 132 channels, +6 dBmV flat output, up to +15 dBmV flat input 4 PRELIMINARY DATA SHEET - Rev 1.0 11/2004 COMMENTS at maximum gain APS3604 PERFORMANCE DATA Figure 4: Input Return Loss vs. Frequency (TA = +25 oC, VCC = + 5 V) Figure 3: Gain vs. Frequency (TA = +25 oC, VCC = + 5 V) -5 10 Vagc: +3.0 V +2.0 V +1.8 V +1.6 V +1.4 V +1.2 V +1.0 V 0V S11: Input Return Loss (dB) 5 S21: Gain (dB) 0 -5 -10 -15 -10 -15 Vagc = +3.0 V Vagc = +2.0 V Vagc = +1.8 V Vagc = +1.4 V Vagc = +1.0 V Vag = 0 V -20 -20 -25 -25 0 100 200 300 400 500 600 700 800 900 1000 1100 0 100 200 300 400 Frequency (MHz) 500 600 700 800 900 1000 1100 Frequency (MHz) Figure 6: Reverse Isolation vs. Frequency (TA = +25 oC, VCC = + 5 V) Figure 5: Output Return Loss vs. Frequency (TA = +25 oC, VCC = + 5 V) 0 -20 -25 -5 S12: Reverse Isolation (dB) S22: Output Return Loss (dB) -30 -10 -15 -20 Vagc = +3.0 V Vagc = +2.0 V Vagc = +1.4 V Vagc = +1.0 V Vagc = 0 V -25 -30 -35 -40 -45 -50 -55 Vagc = +3.0 V Vagc = +2.0 V Vagc = +1.4 V Vagc = +1.0 V Vagc = 0 V -60 -65 -35 0 100 200 300 400 500 600 700 800 900 1000 1100 -70 0 100 200 300 Frequency (MHz) 400 500 600 700 800 900 1000 1100 Frequency (MHz) PRELIMINARY DATA SHEET - Rev 1.0 11/2004 5 APS3604 Figure 7: CSO vs. Input Power (TA = +25 oC, VCC = + 5 V, POUT = +6 dBmV, 135 channel flat input) Figure 8: CTB vs. Input Power (TA = +25 oC, VCC = + 5 V, POUT = +6 dBmV, 135 channel flat input) -45 -45 -50 -50 77 MHz 445 MHz 865 MHz -55 -60 -60 CTB (dBc) CSO (dBc) 77 MHz 445 MHz 865 MHz -55 -65 -70 -65 -70 -75 -75 -80 -80 -85 -85 -90 -90 5 10 15 20 25 5 10 15 Input Power (dBmV) 25 Figure 10: Gain vs. AGC Voltage (TA = +25 oC, VCC = + 5 V) -20 10 -30 5 -40 0 -50 -5 Gain (dB) Isolation (dB) Figure 9: Output Port-to-Port Isolation vs. Frequency (TA = +25 oC, VCC = + 5 V, POUT = +6 dBmV) -60 -70 52 MHz 502 MHz 997 MHz -10 -15 Vagc = +3 V Vagc = 0 V -80 -20 -90 -25 0 500 1000 1500 2000 2500 3000 0 0.5 Frequency (MHz) 6 20 Input Power (dBmV) PRELIMINARY DATA SHEET - Rev 1.0 11/2004 1 1.5 AGC Voltage (V) 2 2.5 3 RF Input (75 Ohms) AGCVID3 AGCVID2 AGCVID1 PRELIMINARY DATA SHEET - Rev 1.0 11/2004 9 0.01uF 8 AGCVID1 GND RFIN- GND RFIN+ GND VCC 0.01uF 7 6 5 4 3 2 1 10 11 12 13 22 14 150W VID2OUT- 15 GND 16 GND VID2OUT+ 17 18 GND VID1OUT- 19 20 VID1OUT+ 21 +5 V 470nH 470nH 150W 150W 0.01uF 470nH 470nH +5 V 470nH 470nH +5 V 0.01uF 0.01uF 82pF 82pF 82pF 82pF 82pF 82pF NOTE: Optional resistor across input pins may be used to tune input return loss. 0.01uF see note 0.01uF 0.01uF 0.01uF GND AGCVID2 23 GND AGCVID3 24 GND GND 25 GND VID3OUT+ 26 GND GND 27 GND VID3OUT- 28 GND GND +5 V Video 3 Output (75 Ohms) Video 2 Ouput (75 Ohms) Video 1 Ouput (75 Ohms) APS3604 APPLICATION INFORMATION Figure 11: Application Circuit 7 APS3604 PACKAGE OUTLINE Figure 12: S29 Package Outline - 28 Pin 5 mm x 5 mm x 1 mm QFN 8 PRELIMINARY DATA SHEET - Rev 1.0 11/2004 APS3604 NOTES PRELIMINARY DATA SHEET - Rev 1.0 11/2004 9 APS3604 NOTES 10 PRELIMINARY DATA SHEET - Rev 1.0 11/2004 APS3604 NOTES PRELIMINARY DATA SHEET - Rev 1.0 11/2004 11 APS3604 ORDERING INFORMATION ORDER NUMBER TEMPERATURE RANGE APS3604RS29P8 -20 oC to +85 oC PACKAGE DESCRIPTION COMPONENT PACKAGING RoHS 28 Pin 5 mm x 5 mm x 1 mm 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: [email protected] 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 11/2004