LVPECL clock at 68 MHz – what the output type means for your signal chain
The DSC1122CE5-068.0000 delivers a LVPECL output at 68 MHz, a differential signaling standard that maintains low jitter and fast edge rates over PCB traces longer than a few inches — the right choice for clocking high-speed ADCs, FPGAs, or SERDES interfaces where single-ended LVCMOS would introduce too much noise or skew.
Supply range and stability – fitting the rail and the timing budget
Frequency stability is specified at ±10 ppm over the -20°C to 70°C operating range, which keeps the clock edge within a 20-ppm window across temperature — sufficient for 1000BASE-T Ethernet or a 68 MHz reference for a Cortex-M core where tighter ppm avoids bit errors.
Enable/Disable function and current draw
Package and board layout – 6-SMD no-lead
The package measures 3.20 mm x 2.50 mm with a seated height of 0.90 mm, fitting tight PCB real estate. The no-lead footprint means thermal and electrical connection is through bottom pads.