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| Fiber-to-the-Home RF Amplifier FEATURES ACA2604 Data Sheet - Rev 2.1 * * * * * * * * * * 50 - 870 MHz Operating Frequency High Linearity: 65 dBc CTB/CSO (79 Chan.) Low Equivalent Input Noise: 4.5 pA/rtHz 22 dB Gain Adjust 400 Differential Input Impedance: No Transformer Required for Interface to Photodiode Single +5 V Supply 5 mm x 5 mm x 1 mm Surface Mount Package RoHS Compliant Package Pin Compatible with the ACA2601 FTTH RF Amplifier Used in Conjunction With Triplexer in Fiber-Coax Line Terminals AC A 26 04 APPLICATIONS S29 Package 28 Pin QFN 5 mm x 5 mm x 1 mm PRODUCT DESCRIPTION The ANADIGICS ACA2604 amplifier for Fiber-to-theHome (FTTH) applications is intended to be used in conjunction with the triplexer in fiber-coax line terminals. The device is driven by, and amplifies the output of, the video downstream path photodiode. The high-impedance input of the ACA2604 eliminates the need for a costly transformer usually needed to interface to the photodiode, and a low equivalent input noise level offers excellent sensitivity. The device provides sufficient linearity to maintain low CTB and Supply CSO levels in full-bandwidth (132 channel) systems, even across a wide gain adjustment range. The ACA2604 is manufactured using ANADIGICS's proven MESFET technology that offers state-of-theart reliability, temperature stability and ruggedness. The device operates from a single +5 V supply and is offered in a 5 mm x 5 mm x 1 mm surface mount package. Attenuator Control Matching Circuit LNA Voltage Controlled Attenuator Output Amplifier 1:1 Transmission Line Balun RF Output ACA2604 Figure 1: Application Block Diagram 11/2008 ACA2604 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 NAME NC RFIN1 NC GND NC RFIN2 NC VCC_IN2 GND IADJ_IN GND GND GND GND DESCRIPTION No Connection RF Input 1 No Connection Ground No Connection RF Input 2 No Connection Input Stage Supply 2 Ground Input Stage Current Adjust Ground Ground Ground Ground PIN 28 27 26 25 24 23 22 21 20 19 18 17 16 15 NAME VCC_IN2 NC VAGC GND VCC_AGC NC GND VCC_OUT1 RFOUT1 GND GND GND RFOUT2 VCC_OUT2 DESCRIPTION Input Stage Supply 1 No Connection AGC Control Input Ground AGC Supply No Connection Ground Output Stage Supply 1 RF Output 1 Ground Ground Ground RF Output 2 Output Stage Supply 2 2 Data Sheet - Rev 2.1 11/2008 ACA2604 ELECTRICAL CHARACTERISTICS Table 2: Absolute Minimum and Maximum Ratings PARAMETER Supply Voltage (VCC) AGC Voltage (VAGC) RF Input Power (PIN) Storage Temperature MIN 0 0 -65 MAX +8 +5 +25 +150 UNIT V V dBmV/ch C 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 (f) Supply Voltage (VCC) RF Output Power (POUT) Case Temperature (TC) MIN 50 -40 TYP +5 +18 MAX 870 +110 UNIT MHz V dBmV/ch C COMMENTS The device may be operated safely over these conditions; however, parametric performance is guaranteed only over the conditions defined in the electrical specifications. Data Sheet - Rev 2.1 11/2008 3 ACA2604 Table 4: Electrical Specifications (TA = +25 C, POUT = +18 dBmV, VCC = +5 V, 75 system, see Figure 3) PARAMETER RF Gain over Temperature (1) Gain Tilt (2) VAGC = +3.0 V VAGC = +0.5 V Gain Tilt over Temperature VAGC = +3.0 V VAGC = +0.5 V (1), (2), (4) MIN 22.5 0.5 2.5 (1), (3), (4) TYP 24.0 1.5 3.5 4.5 5.8 1.0 1.0 22 -65 -65 4.5 5 400 18 230 18 MAX 2.0 4.5 +3.0 -60 5.5 295 25 UNIT dB COMMENTS at 550 MHz dB dB Gain Flatness over Temperature VAGC = +3.0 V VAGC = +0.5 V Gain Adjustment Range Gain Adjust Control Voltage CTB (5) 20 +0.5 +47 16 15 - dB dB V dBc dBc dBm pA/rtHz pA/rtHz differential differential, 75 system Max. gain at +3.0 V 79 Channels 79 Channels CSO (5) OIP2 (7) Equivalent Input Noise (EIN) (4) EIN over Temperature (1), (4) Input Impedance Output Return Loss (1), (6) -30 oC to +85 oC +85 oC to +100 oC Current Consumption (1) Thermal Resistance dB mA o C/W Notes: (1) Package slug temperature range of -30 to +100 oC. (2) Recorded tilt of the calculated best fit straight line from 50 to 870 MHz. (3) Flatness is the peak-to-peak deviation from the calculated best fit straight line. (4) Measured using application circuit with photodiode, as shown in Figure 16. (5) Measured at +21 dBmV output power, with 14 dB gain reduction. (6) Over the 50 to 870 MHz Frequency band. (7) Measured using two tones at 379.25 and 301.25 MHz, -12 dBm output power per tone, with 14 dB gain reduction. 4 Data Sheet - Rev 2.1 11/2008 ACA2604 Figure 3: Test Circuit Data Sheet - Rev 2.1 11/2008 5 ACA2604 PERFORMANCE DATA Performance data on this page measured using application circuit with input photodiode, as shown in Figure 15. Figure 4: Gain vs. Frequency (TA = +25 oC, VCC = + 5 V) 30 25 Vagc=0.0V Vagc=0.2V Vagc=0.4V Vagc=0.6V Vagc=0.8V Vagc=1.0V Vagc=1.2V Vagc=1.4V Vagc=1.6V Vagc=1.8V Vagc=2.0V Vagc=2.2V Vagc=2.4V Vagc=2.6V Vagc=2.8V Vagc=3.0V 20 Z21 (A/w) 15 10 5 0 0 100 200 300 400 500 Frequency (MHz) 600 700 800 900 1000 Figure 5: Output Return Loss vs. Frequency (TA = +25 oC, VCC = + 5 V) -5 -10 Vagc=0.0V Vagc=0.2V Vagc=0.4V Vagc=0.6V Vagc=0.8V Vagc=1.0V Vagc=1.2V Vagc=1.4V Vagc=1.6V Vagc=1.8V Vagc=2.0V Vagc=2.2V Vagc=2.4V Vagc=2.6V Vagc=2.8V Vagc=3.0V -15 -20 S22 (dB) -25 -30 -35 -40 0 100 200 300 400 500 Frequency (MHz) 600 700 800 900 1000 6 Data Sheet - Rev 2.1 11/2008 ACA2604 Performance data on this page measured using application circuit with input photodiode, as shown in Figure 15. Figure 6: Gain Flatness to Best Fit Line Over Temperature (VCC = + 5 V, VAGC = +3.0 V) 2 1.5 1 Gain Flaness (dB) 0.5 Temperature 0 0 -0.5 100 200 300 400 500 600 700 800 900 1000 +85C +25C -40C -1 -1.5 -2 Frequency (MHz) Table 5: Gain Flatness to Best Fit Line (VAGC = +3.0 V) Temp (oC) 85 25 -40 Tilt (dB) 3.7 4.5 5.1 Flatness (dB) 1.3 1.0 0.9 The best fit line is calculated using the least mean squares method: y = m x +b m= (x y )- x 2 x y n ( x )2 n - b= y - m x n n Data Sheet - Rev 2.1 11/2008 7 ACA2604 Performance data on this page measured using application circuit with input photodiode, as shown in Figure 15. Figure 7: Output Return Loss Over Temperature (VCC = + 5 V, VAGC = +3.0 V) 0 -5 -10 -15 S22 (dB) -20 85C 25C -40C -25 -30 -35 -40 0 100 200 300 400 500 Frequency (MHz) 600 700 800 900 1000 8 Data Sheet - Rev 2.1 11/2008 ACA2604 Performance data on this page measured using application circuit with input photodiode, as shown in Figure 15. Figure 8: Gain Flatness to Best Fit Line Over Temperature (VCC = + 5 V, VAGC = +1.6 V) 2 1.5 1 0.5 Gain Flaness (dB) 0 0 -0.5 100 200 300 400 500 600 700 800 900 1000 +85C +25C -40C -1 -1.5 -2 Frequency (MHz) Table 6: Gain Flatness to Best Fit Line (VAGC = +1.6 V) Temp (oC) 85 25 -40 Tilt (dB) 4.1 4.5 5.1 Flatness (dB) 0.5 0.7 0.8 The best fit line is calculated using the least mean squares method: y = m x +b m= (x y )- x 2 x y n ( x )2 n - b= y - m x n n Data Sheet - Rev 2.1 11/2008 9 ACA2604 Performance data on this page measured using application circuit with input photodiode, as shown in Figure 15. Figure 9: Output Return Loss Over Temperature (VCC = + 5 V, VAGC = +1.6 V) 5 0 -5 -10 S22 (dB) -15 -20 +85C +25C -40C -25 -30 -35 -40 0 100 200 300 400 500 Frequency (MHz) 600 700 800 900 1000 10 Data Sheet - Rev 2.1 11/2008 ACA2604 Performance data on this page measured using application circuit with input photodiode, as shown in Figure 15. Figure 10: Gain Flatness to Best Fit Line vs. Frequency Over Temperature (VCC = + 5 V, VAGC = 0 V) 2 1.5 1 0.5 Gain Flaness (dB) 0 0 100 200 300 400 +85C +25C 600 700 800 900 1000 -40C 500 -0.5 -1 -1.5 -2 Frequency (MHz) Table 7: Gain Flatness to Best Fit Line (VAGC = 0 V) Temp (oC) 85 25 -40 Tilt (dB) 5.2 5.8 6.3 Flatness (dB) 1.2 1.0 0.8 The best fit line is calculated using the least mean squares method: y = m x +b m= (x y )- x 2 x y n ( x )2 n - b= y - m x n n Data Sheet - Rev 2.1 11/2008 11 ACA2604 Performance data on this page measured using application circuit with input photodiode, as shown in Figure 15. Figure 11: Output Return Loss Over Temperature (VCC = + 5 V, VAGC = 0 V) 0 -5 -10 -15 S22 (dB) -20 +85C +25C -40C -25 -30 -35 -40 0 100 200 300 400 500 Frequency (MHz) 600 700 800 900 1000 12 Data Sheet - Rev 2.1 11/2008 ACA2604 Performance data on this page measured using test circuit shown in Figure 3. Figure 12: CTB vs. Frequency (TA = +25 oC, VCC = + 5 V, 132 Analog Channel Loading, Optical Input Power = 0 dBm, RF Output Power = +18 dBmV) -60 -65 -70 CTB (dBc) -75 -80 -85 0 100 200 300 Frequency (MHz) 400 500 600 Figure 13: CSO vs. Frequency (TA = +25 oC, VCC = + 5 V, 132 Analog Channel Loading, Optical Input Power = 0 dBm, RF Output Power = +18 dBmV) -50 -55 -60 -65 CSO (dBc) -70 -75 -80 -85 -90 0 100 200 300 Frequency (MHz) 400 500 600 Data Sheet - Rev 2.1 11/2008 13 ACA2604 Performance data on this page measured using application circuit with input photodiode, as shown in Figure 15. Figure 14: Equivalent Input Noise vs. Frequency (TA = +25 oC, VCC = + 5 V, VAGC = +3.0 V) 6 5 4 EIN (pA/rtHz) 3 2 1 0 0 100 200 300 400 500 Frequency (MHz) 600 700 800 900 1000 14 Data Sheet - Rev 2.1 11/2008 +5 V C15 C16 C14 L9 L7 R3 C13 C12 VAGC +5 V APPLICATION INFORMATION L8 FB1 C17 28 27 26 25 24 23 NC VAGC GND NC VCC_IN1 C2 2 1 VCC_AGC GND R1 NC VCC_OUT1 RFOUT1 GND GND GND ACA2604 RFOUT2 VCC_OUT2 GND IADJ_IN GND GND GND GND 17 16 15 18 19 20 21 22 L1 3 L3 NC GND NC RFIN2 NC VCC_IN2 4 RFIN1 C10 T1 C11 C9 L10 C18 RF Output (75 Ohms) D1 5 6 7 8 9 10 11 12 13 Figure 15: Application Circuit with Input Photodiode C3 L4 R2 FB2 C5 L5 14 Data Sheet - Rev 2.1 11/2008 L6 C7 C4 +12 V C6 +5 V +5 V C8 C1 L2 ACA2604 15 ACA2604 Table 5: Evaluation Board Parts List REF C11, C18 C1 C9, C10 C2, C3 C5 C6, C7, C12, C13, C15, C16 C4, C17 C14 C8 L1, L2, L3, L4 L5, L6, L7, L8 R1, R2 T1 D1 Connector L9 L10 FB1, FB2 R3 DESCRIPTION 0.5 pF; 0603 Cap 1 pF; 0603 Cap 270 pF; 0603 Cap 470 pF; 0603 Cap 1000 pF; 0603 Cap 0.01 F; 0603 Cap 0.1 F; 0603 Cap 1 F; 0603 Cap 47 F; Elect. Cap 25 V 30 nH; 0603 Ind 330 nH; 1008 Ind 1 k; 0603 Res 1:1 Balun Transformer; 0603 Cap Analog Photodiode 75 N Male Panel Mount Ferrite Chip 7.5 nH; 0603 Ind EMI Ferrite Chip 20 0603 Res QTY 1 1 2 2 1 6 1 1 1 4 2 2 1 1 1 1 1 2 1 VENDOR Murata Electronics Murata Electronics Murata Electronics Murata Electronics Murata Electronics Murata Electronics Murata Electronics Murata Electronics Panasonic-ECG Coilcraft Coilcraft Panasonic-ECG M/A-COM ANADIGICS Pasternack Enterprises Murata Coilcraft Murata Electronics Panasonic-ECG VENDOR PART NO. GRM1885C1HR50CZ01D GRM1885C1H1R0CZ01D GRM155R7H271KA01D GRM155R71H471KA01D GRM1885C1H102JA01D GRM1885C1HR50CZ01D GRM188F51C104ZA01D GRM188R61C105KA93D ECA-1EM470B 0603CS-30NXJL 1008CS-331XJLB ERJ-2GEJ102X MABAES0029 PD070-HL1-300 or PD070-HL2-300 PE4504 BLM15HD102SN1D 0603CS-7N5 BLM15HD182SN ERT-3GEYJ200W 16 Data Sheet - Rev 2.1 11/2008 ACA2604 PACKAGE OUTLINE Figure 16: S29 Package Outline - 28 Pin 5 mm x 5 mm x 1 mm QFN Data Sheet - Rev 2.1 11/2008 17 ACA2604 ORDERING INFORMATION ORDER NUMBER TEMPERATURE RANGE -40 C to +110 C PACKAGE DESCRIPTION RoHS-Compliant 28 Pin QFN 5 mm x 5 mm x 1 mm COMPONENT PACKAGING ACA2604RS29P8 Tape and Reel, 2500 pieces per Reel 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. 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. wARNING 18 Data Sheet - Rev 2.1 11/2008 |
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