1 GSPS Direct Digital Synthesizer with 14-Bit DAC

FEATURES ► 1 GSPS internal clock speed (up to 400 MHz output directly) ► Integrated 1 GSPS 14-bit DAC ► 48-bit frequency tuning word with 4 μHz resolution ► Differential HSTL comparator ► Flexible system clock input accepts either crystal or external reference clock ► On-chip low noise PLL

Half-Bridge MOSFET Driver for Switching Power Supplies

FEATURES
4.5- to 5.5-V Operation
Undervoltage Lockout
250-kHz to 1-MHz Switching Frequency
Shutdown Quiescent Current