GENERAL DESCRIPTION
The TDA8769 is a BiCMOS 12-bit Analog-to-Digital Converter (ADC) optimized for GSM/EDGE, W-CDMA and CDMA2000 radio transceivers, high data rate radios and other applications such as advanced FM radio and professional imaging. Its main innovation is the RF sampling, based on a high-speed clock of up to 105 Msps combined with high input frequencies of up to 250 MHz. It converts the analog input signal into 12-bit binary coded digital words at a maximum sampling rate of 105 MHz.

FEATURES
• 12-bit resolution
• Optimized for both Nyquist and high IF sampling
• High-speed sampling rate up to 105 MHz
• Maximum analog input frequency of 330 MHz (see Application section)
• Only 2 clock cycles latency
• 5 V power supplies and 3.3 V output power supply
• Binary or two’s-complement CMOS outputs
• Programmable Complete Conversion Signal (CCS) CMOS output
• In-range CMOS compatible output
• CMOS compatible static digital inputs
• LVTTL and LVCMOS compatible digital outputs
• Differential clock input PECL; sine wave and TTL compatible
• Integrated track-and-hold amplifier
• Differential analog input
• External amplitude range control
• Full-scale controllable from 1.5 to 1.9 V (p-p)
• Voltage controlled regulator included
• Temperature range from −40 to +85 °C.

APPLICATIONS
• Cellular infrastructure (2.5G, 3G, etc.)
• Base stations and “Zero-IF” or direct IF sampling subsystems
• Wireless and wired broadband communications
• Wireless Local Loop (WLL)
• Local Multipoint Distribution Service (LMDS)
• Advanced Frequency Modulation (FM) radio
• Imaging (camera scanner and medical)
• Cable modem or set top box
• Radar and satellite hub systems.