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AD9066ARS Arkusz danych(PDF) 1 Page - Analog Devices |
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AD9066ARS Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 7 page FUNCTIONAL BLOCK DIAGRAM 6-BIT DAC 6-BIT DAC AD9066 D0A-D5A D0B-D5B +VS VT INA REF A ENCODE INB REF B VB REV. A 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. a Dual 6-Bit, 60 MSPS Monolithic A/D Converter AD9066 PRODUCT DESCRIPTION The AD9066 is a dual 6-bit ADC that has been optimized for low-cost in-phase and quadrature (I and Q) demodulators. Primary applications include digital direct broadcast satellite applications where broadband quadrature phase shift keying (QPSK) modulation is used. In these receivers the recovered signal is separated into I and Q vector components and digitized. To reduce total system cost and power dissipation, the AD9066 provides an internal voltage reference and operates from a single +5 volt power supply. Digital outputs are CMOS com- patible and rated to 60 MSPS conversion rates. The digital input (ENCODE) utilizes a CMOS input stage with a TTL compatible (1.4 V) threshold. The AD9066 is housed in a 28-lead SOIC and a 28-lead SSOP package and is available in two temperature grades. The AD9066JR is rated for operation over the 0 °C to 70°C commer- cial temperature range. The AD9066AR/ARS is rated for the –40 °C to +85°C industrial temperature range. The internal voltage reference insures that the analog input is biased to midscale with low offset when driven from an ac- coupled source. In dc-coupled applications, the midscale voltage reference can be used to control external biasing amplifiers to minimize offsets due to variations in temperature or supply voltage. FEATURES Two Matched ADCs on Single Chip CMOS-Compatible I/O Low-Power (400 mW) Dissipation Single +5 V Supply On-Chip Voltage Reference Self-Biased for AC-Coupled Inputs 28-Lead SOIC and SSOP Packages APPLICATIONS Direct Broadcast Satellite (DBS) Receivers QAM Demodulators Wireless LANs VSAT Receivers PIN CONFIGURATIONS TOP VIEW (Not to Scale) 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 AD9066 (JR/AR) ENCODE D5A (MSB) +VS D4A GND D3A GND D2A +VS D1A INA D0A (LSB) GND GND +VS +VS VT D5B (MSB) REF A D4B INB D3B REF B D2B VB D1B NC D0B (LSB) NC = NO CONNECT TOP VIEW (Not to Scale) 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 AD9066 (ARS) ENCODE D5A (MSB) +VS D4A D3A D2A D1A INA D0A (LSB) GND +VS +VS VT (MSB) D5B REF A D4B INB D3B REF B D2B VB D1B NC (LSB) D0B GND GND +VS GND NC = NO CONNECT 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., 2000 |
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