AD9066

a 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 Dual 6-Bit, 60 MSPS Monolithic A/D Converter AD9066 FUNCTIONAL BLOCK DIAGRAM +VS AD9066 VT INA REF A ENCODE INB REF B VB 6-BIT DAC D0B-D5B 6-BIT DAC D0A-D5A PRODUCT DESCRIPTION PIN CONFIGURATIONS ENCODE 1 +VS 2 GND 3 GND 4 +VS 5 INA 6 GND 7 28 D5A (MSB) 27 D4A 26 D3A 25 D2A 24 D1A 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 compatible 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 commercial temperature range. The AD9066AR/ARS is rate...