
Philips Electronics
Description
The TDA8768AH is a biCMOS 12-bit Analog-to-Digital Converter (ADC) optimized for GSM and EDGE cellular infrastructures, professional telecommunications and imaging, and advanced FM radio. It converts the analog input signal into 12-bit binary coded digital words at a maximum sampling rate of 70 MHz. All static digital inputs (SH, CE and OTC) are TTL and CMOS compatible and all outputs are CMOS compatible. A sine wave clock input signal can also be used.
FEATUREs
■ 12-bit resolution
■ Sampling rate up to 70 MHz
■ −3 dB bandwidth of 245 MHz
■ 5 V power supplies and 3.3 V output power supply
■ Binary or twos complement CMOS outputs
■ In-range CMOS compatible output
■ TTL and CMOS compatible static digital inputs
■ TTL and CMOS compatible digital outputs
■ Differential AC or PECL clock input; TTL compatible
■ Power dissipation 550 mW (typical)
■ Low analog input capacitance (typical 2 pF), no buffer amplifier required
■ Integrated sample-and-hold amplifier
■ Differential analog input
■ External amplitude range control
■ Voltage controlled regulator included
■ −40 °C to +85 °C ambient temperature.
APPLICATIONs
■ High-speed analog-to-digital conversion for:
◆ Cellular infrastructure (GSM and EDGE)
◆ Professional telecommunication
◆ Advanced FM radio
◆ Radar
◆ Imaging (camera scanner)
◆ Set Top Box (STB)
◆ Medical imaging.