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| ACA2408 870 MHz, 34 dB Gain CATV Push-Pull Line Amplifier PRELIMINARY DATA SHEET - Rev 1.0 FEATURES * * * * * * * 34dB Gain Very Low Distortion Stable with High VSWR Load Conditions Monolithic Design for Consistent Performance Part-to-Part Low DC Power Consumption Surface Mount Package Compatible with Automatic Assembly Low Cost Alternative to Hybrids APPLICATIONS * Line Extenders, Apartment House Amplifiers, System Amplifiers, Distribution Nodes S7 Package 16 Pin Wide Body SOIC with Heat Slug PRODUCT DESCRIPTION The ACA2408 is a highly linear, monolithic GaAs RF amplifier that has been developed to replace, in new designs, standard CATV hybrid amplifiers. Offered in a convenient surface mount package, the MMIC consists of two pairs of parallel amplifiers that are optimized for exceptionally low distortion and noise figure. A hybrid equivalent that provides flat gain response and excellent input and output return loss over the 40 to 870 MHz CATV downstream band is formed when one ACA2408 is cascaded between two appropriate transmission line baluns. 1A RF Input 1:1 2A 1:1 RF Output 1B 2B ACA2408 Figure 1: Hybrid Application Diagram 07/2003 ACA2408 1 2 3 4 5 6 7 8 GND 2A IN GND 1A IN 1BIN ISET 2B IN GND Figure 2: Pin Out GND 1A OUT Bias 1A 2A OUT 2B OUT Bias 1B 1BOUT GND 16 15 14 13 12 11 10 9 Table 1: Pin Description PIN 1 2 3 4 5 6 7 8 NAME GND 2AIN GND 1AIN 1BIN ISET 2BIN GND DESCRIPTION Ground Amplifier 2A Input Ground Amplifier 1A Input Amplifier 1B Input Current Adjust Amplifier 2B Input Ground PIN 16 15 14 13 12 11 10 9 NAME GND 1AOUT Bias 1A 2AOUT 2BOUT Bias 1B 1BOUT GND DESCRIPTION Ground Amplifier 1A Output Bias for 1A Amplifier Amplifier 2A Output and Supply Amplifier 2B Output and Supply Bias for 1B Amplifier Amplifier 1B Output Ground 2 PRELIMINARY DATA SHEET - Rev 1.0 07/2003 ACA2408 ELECTRICAL CHARACTERISTICS Table 2: Absolute Mimimum and Maximum Ratings PARAMETER Supply (pins 12, 13) RF Power at Inputs (pins 4, 5) Storage Temperature Soldering Temperature Soldering Time MIN 0 -65 MAX +28 +55 +150 +260 5.0 UNIT VDC dBmV C C Sec 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. Notes: 1. Pins 2, 4, 5 and 7 should be AC-coupled. No external DC bias should be applied. 2. Pin 6 should be AC-grounded and/or pulled to ground through a resistor for current control. 3. Pins 11 and 14 are bias feeds for input amplifiers 1A and 1B. No external DC bias should be applied. 4. Pins 10 and 15 receive DC bias directly from pins 11 and 14. Table 3: Operating Ranges PARAMETER Supply: VDD (pins 12, 13) Voltage at ISET (pin 6) RF Frequency Case Temperature MIN 40 -40 TYP +24 +3 MAX 870 +110 UNIT VDC VDC MHz 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 07/2003 3 ACA2408 Table 4: AC and DC Electrical Specifications (TA = +25 C, VDD = +24 VDC) PARAMETER Gain (1) @ 870 MHZ Cable Equivalent Slope (1) Gain Flatness (1) to 870 MHZ Noise Figure (1) CTB (1) 110 Channels (2) CSO (1) 110 Channels (2) XMOD (1) 110 Channels (2) MIN 33.5 - TYP 34.8 0 0.2 2.0 -70 -68 -65 25 28 26 20 21 27 24 20 17 17 325 MAX 4.0 -58 -58 -55 -20 -15.5 -14 -20 -15.5 -14 340 UNIT dB dB dB dB dBc dBc dBc COMMENTS Input Return Loss (75 system) (1) dB 40 to 80 MHz 80 to 160 MHz 160 to 320 MHz 320 to 640 MHz 640 to 870 MHz 40 to 80 MHz 80 to 160 MHz 160 to 320 MHz 320 to 640 MHz 640 to 870 MHz Output Return Loss (1) (75 system) Supply Current dB mA Thermal Resistance - - 4.5 C/W Notes: (1) Measured with baluns on the input and output of the device. (2) Flat output, +44 dBmV per channel. 4 PRELIMINARY DATA SHEET - Rev 1.0 07/2003 ACA2408 PERFORMANCE DATA Figure 3: Gain (S21) vs. Frequency (TA = +25 C, VDD = +24 V, 75 system) 36.0 35.5 35.0 Gain (dB) 34.5 34.0 33.5 33.0 0 100 200 300 400 500 600 700 800 900 1000 Frequency (MHz) Figure 4: Input and Output Return Loss (S11 and S22) vs. Frequency (TA = +25 C, VDD = +24 V, 75 system) 0 -5 -10 -15 Return Loss (dB) -20 -25 -30 -35 -40 -45 -50 0 100 200 300 400 500 600 700 800 900 1000 S11 S22 Frequency (MHz) PRELIMINARY DATA SHEET - Rev 1.0 07/2003 5 ACA2408 PERFORMANCE DATA Figure 5: Isolation (S12) vs. Frequency (TA = +25 C, VDD = +24 V, 75 system) 0 -5 -10 -15 Isolation (dB) -20 -25 -30 -35 -40 -45 -50 0 100 200 300 400 500 600 700 800 900 1000 Frequency (MHz) Figure 6: Noise Figure vs. Frequency (TA = +25 C, VDD = +24 V) 3.0 2.5 Noise Figure (dB) 2.0 1.5 1.0 0.5 0.0 0 100 200 300 400 500 600 700 800 900 1000 Frequency (MHz) 6 PRELIMINARY DATA SHEET - Rev 1.0 07/2003 ACA2408 PERFORMANCE DATA Figure 7: CTB vs. Frequency (110 channels, +44 dBmV output power, flat output) -40 -45 -50 -55 CTB (dBc) -60 -65 -70 -75 -80 -85 -90 0 100 200 300 400 500 600 700 800 Frequency (MHz) Figure 8: CSO vs. Frequency (110 channels, +44 dBmV output power, flat output) -40 -45 -50 -55 CSO (dBc) -60 -65 -70 -75 -80 -85 -90 0 100 200 300 400 500 600 700 800 Frequency (MHz) Figure 9: XMOD vs. Frequency (110 channels, +44 dBmV output power, flat output) -40 -45 -50 -55 XMOD (dBc) -60 -65 -70 -75 -80 -85 -90 0 100 200 300 400 500 600 700 800 Frequency (MHz) PRELIMINARY DATA SHEET - Rev 1.0 07/2003 7 ACA2408 Figure 10: CTB vs. Frequency (132 channels, +44 dBmV output power, flat output) -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 0 100 200 300 400 500 600 700 800 900 CTB (dBc) Frequency (MHz) Figure 11: CSO vs. Frequency (132 channels, +44 dBmV output power, flat output) -40 -45 -50 -55 CSO (dBc) -60 -65 -70 -75 -80 -85 -90 0 100 200 300 400 500 600 700 800 900 Frequency (MHz) Figure 12: XMOD vs. Frequency (132 channels, +44 dBmV output power, flat output) -40 -45 -50 -55 XMOD (dBc) -60 -65 -70 -75 -80 -85 -90 0 100 200 300 400 500 600 700 800 900 Frequency (MHz) 8 PRELIMINARY DATA SHEET - Rev 1.0 07/2003 ACA2408 APPLICATION INFORMATION Vt AC\AK 03/4 +24 V R2 C4 C1 T1 C2 C11 C3 R3 R1 C5 C12 L6 C7 L2 C9 L4 C14 Output L1 C6 C10 L3 Input L5 C8 T2 34dB 75 I adj +24 V + Figure 13: Evaluation Board Layout C4 R2 1 GND 2AIN GND 1AIN 1BIN ISET 2BIN GND ACA2408 GND 1AOUT Bias 1A 2AOUT 2BOUT Bias 1B 1BOUT GND 16 15 14 13 12 11 10 9 +24 V Vt L1 C6 L5 C12 L6 C7 C1 RF IN 2 3 L3 C10 TVS C15 T1 C2 C11 4 5 6 7 C8 T2 C9 L4 RF OUT R1 R3 C3 8 L2 C14 IDD Adjust (+24 V) C5 Figure 14: Evaluation Board Schematic PRELIMINARY DATA SHEET - Rev 1.0 07/2003 +24 V 9 ACA2408 Table 5: Evaluation Board Parts List REF C1, C2, C3, C6, C7, C10, C14 C4, C5, C8, C9 C11, C12 C15 R1, R2 TVS L1, L2, L3, L4 L5, L6, (4) R3 CONNECTOR (1) T1, T2 (2) (BALUN) (4) DESCRIPTION 0.01 F CHIP CAP 470 pF CHIP CAP 0.5 pF CHIP CAP 47 F ELECT CAP NOT USED TVS 24 VOLT 600 WATT 680 nH INDUCTOR 1.5 nH CHIP INDUCTOR 13 K Resistor 75 N MALE PANEL MOUNT Ferrite Core Wire Printed Circuit Board (3) QTY 7 4 2 1 VENDOR MURATA MURATA MURATA DIGI-KEY CORP VENDOR P/N GRM39X7R103K50V GRM39X7R471K50V GRM36COG0R5C50 P5275-ND 1 4 2 1 2 2 DIGI-KEY CORP COIL CRAFT TOKO DIGI-KEY CORP PASTERNACK ENTERPRISES FAIR-RITE MWS WIRE IND. SMBJ24ACCCT-ND 1008CS-681XKBC PTL2012-F1N5C P13KGCT-ND PE4504 2843002702 T-2361429-20 24V2X1AC75 14996Y 1 1 STANDARD PRINTED CIRC. INC. INDIUM CORP OF AMERICA INDIUM 300 X 160 MILS Notes: (1) N connector center pin should be approximately 80 mils in length. (2) T1, T2, balun: 4.5 turns thru, as shown in Figure 15. (3) Due to the power dissipation of this device, the printed circuit board should be mounted / attached to a heat sink. (4) 400 mA minimum current rating. NOTES: 1. MATERIAL: CORE: FAIR-RITE (2843002702) WIRE: MWS WIRE IND. T-23614929-20 4.5 TIMES THRU AS SHOWN Figure 15: Balun Drawing 10 PRELIMINARY DATA SHEET - Rev 1.0 07/2003 ACA2408 PACKAGE OUTLINE Figure 16: S7 Package Outline - 16 Pin Wide Body SOIC with Heat Slug PRELIMINARY DATA SHEET - Rev 1.0 07/2003 11 ACA2408 ORDERING INFORMATION ORDER NUMBER ACA2408S7P2 ACA2408S7P0 TEMPERATURE RANGE -40 to +110 C -40 to +110 C PACKAGE DESCRIPTION COMPONENT PACKAGING 16 Pin Wide Body 1,500 piece tape and reel SOIC with Heat Slug 16 Pin Wide Body Plastic tubes (50 pieces per tube) SOIC with Heat Slug 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 07/2003 |
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