PLL with integrated VCO and lock detection
The CD74HCT7046AM96 is a phase-locked loop (PLL) IC from Texas Instruments' 74HCT series, integrating a voltage-controlled oscillator (VCO) and a lock detector on a single die. It accepts a CMOS-level reference input and provides a CMOS-level output, making it a direct fit for 5 V digital systems that need frequency synthesis, clock multiplication, or jitter cleanup without an external VCO module. The VCO can be tuned across a range up to 38 MHz, which sets the upper bound for the output frequency and the PLL's lock range. The lock detector outputs a logic-high signal when the PLL achieves phase lock, giving the system controller a clean handshake for clock switching or status monitoring.
Temperature grade and supply rail
Rated for -55°C to 125°C operating temperature, this part spans the military and industrial temperature range. The 1:2 input-to-output ratio means one reference input drives two internal paths: the VCO output and the lock-detector output. The differential input and output are both marked No/No, confirming single-ended CMOS signalling throughout.
The supplier device package is listed as 16-SOIC, so the land pattern matches the JEDEC MS-012 variation for this width.
ROHS3 compliant, meeting the latest RoHS exemption rules including DEHP, BBP, DBP, and DIBP limits. No restricted substances above the threshold concentrations.