Файл:AD8016.pdf
 Размер этого JPG-превью для исходного PDF-файла: 1280 × 1656 пикселей. Другие разрешения: 320 × 414 пикселей | 800 × 1035 пикселей | 2550 × 3300 пикселей. FEATURES xDSL Line Driver that Features Full ADSL CO (Central Office) Performance on ؎12 V Supplies and Full CPE (Customer Premise) Performance on ؎6 V Supplies Low Power Operation ؎5 V to ؎12 V Voltage Supply 12.5 mA/Amp (Typ) Total Supply Current Power-Reduced Keep-Alive Current of 4.5 mA/Amp High Output Voltage and Current Drive IOUT = 600 mA 40 V p Differential Output Voltage RL = 50 ⍀, V S = ؎12 V Low Distortion –75 dBc @ 1 MHz SFDR, R L = 100 ⍀, V O = 2 V p High Speed 78 MHz Bandwidth (–3 dB), G = +5 40 MHz Gain Flatness 1000 V/s Slew Rates MTPR = –75 dBc, 26 kHz to 1.1 MHz, ZLINE = 100 ⍀, P LINE = 20.4 dBm PRODUCT DESCRIPTION The AD8016 high output current dual amplifier is designed for the line drive interface in Digital Subscriber Line systems such as ADSL, HDSL2 and proprietary xDSL systems. The drivers are capable, in full bias operation, of providing 24.4 dBm output power into low resistance loads, enough to power a 20.4 dBm line, including hybrid insertion loss. 10dB/DIV The AD8016 is available in a low cost 24-lead SOIC and a thermally enhanced 20-lead PSOP. Operating from ± 12 V supplies, the AD8016 requires only 1.5 W of total power –75dBc 549.3 550.3 551.3 552.3 553.3 554.3 555.3 556.3 557.3 558.3 559.3 FREQUENCY – kHz Figure 1. Multitone Power Ratio; V S = ±12 V, 20.4 dBm Output Power into 100 Ω, Downstream PIN CONFIGURATIONS 24-Lead Batwing (RB-24) 20-Lead PSOP3 (RP-20) +V1 1 20 +V2 +V1 1 24 +V2 VOUT1 2 19 VOUT2 VOUT1 2 23 VOUT2 VINN1 3 18 VINN2 VINN1 3 22 VINN2 VINP1 4 21 VINP2 AGND 5 20 AGND AGND 6 19 AGND AGND 7 18 AGND AGND 8 17 AGND PWDN0 9 16 PWDN1 DGND 10 15 BIAS –V1 11 14 –V2 NC 12 13 NC – + + – VINP1 4 17 NC 5 16 NC NC 6 15 NC NC AD8016 7 14 VINP2 NC PWDN0 8 DGND 9 12 BIAS –V1 10 11 –V2 13 PWDN1 NC = NO CONNECT – + + – AD8016 NC = NO CONNECT dissipation (refer to the Power Dissipation section for details) while driving 20.4 dBm of power downstream using the xDSL hybrid in Figure 44a and Figure 44b. Two digital bits (PDWN0, PDWN1) allow the driver to be capable of full performance, an output “keep-alive state,” or two intermediate bias states. The “keep-alive” state biases the output transistors enough to provide a low impedance at the amplifier outputs for back termination. The low power dissipation, high output current, high output voltage swing, flexible power-down and robust thermal packaging enable the AD8016 to be used as the Central Office (CO) or Customer Premise Equipment (CPE) terminal driver in ADSL, HDSL2, VDSL and proprietary xDSL systems. 10dB/DIV a Low Power, High Output Current xDSL Line Driver AD8016 –68dBc 102.4 103.4 104.4 105.4 106.4 107.4 108.4 109.4 110.4 111.4 112.4 FREQUENCY – kHz Figure 2. Multitone Power Ratio; V S = ± 6 V, 13 dBm Output Power into 100 Ω, Upstream REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1999
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