LMK03328RHSR

LMK03328RHSR is a Texas Instruments dual-PLL ultra-low-jitter clock generator in a 7 by 7 mm WQFN-48, for consolidating the clock tree of processors, FPGAs and converters onto one device. It generates up to eight outputs that can mix AC-LVPECL, AC-LVDS, AC-CML, HCSL and LVCMOS formats, with 100 fs typical RMS jitter on outputs above 100 MHz and -80 dBc power-supply noise rejection, so a single generator can replace several oscillators and fanout stages without giving up SerDes-grade clock quality. Configuration is flexible: pin mode, I2C or EEPROM start-up, with 71 pin-selectable start-up options for hardware-only designs; inputs accept a 10 MHz to 52 MHz crystal or an external reference from 1 MHz to 300 MHz, and output fine margining of plus/minus 50 ppm typical supports in-system timing tests. The core runs at 3.3 V with output supplies of 1.8 V, 2.5 V or 3.3 V, over -40 to +85 degrees C. Selection advice: the RHSR code is the large-reel option — RHST is the 250-piece small reel. Consolidate here when the board needs several unrelated frequencies; a fixed oscillator is cheaper when only one clock is required. Parameters verified against TI documentation for the LMK03328.