6V49205B

Freescale P10XX and P20XX System Clock with Selectable DDR Frequency 6V49205B DATASHEET Description The 6V49205B is a main clock for Freescale P10xx and P20xx-based systems. It has a selectable System CCB clock and 2 DDRCLK speeds – 100M or 66.66M. The 6V49205B also provides LP-HCSL PCIe outputs for low power and reduced board space. Output Features 1 – Sys_CCB 3.3V LVCMOS output at 100M/83.33M/ 80M/66.66M 1 – DDRCLK 3.3V LVCMOS output at 100M or 66.66M 1 1 – 125M 3.3V LVCMOS output 6 – LP-HCSL PCIe pairs selectable at 100M or 125M 6 – 25MHz 3.3V LVCMOS outputs 2 – 2.048M 3.3V LVCMOS outputs 2 – USB 3.3V LVCMOS outputs at12M or 24M Key Specifications PCIe Gen1–2–3 compliant <3p rms phase noise on REF outputs Typical Applications System Clock for Freescale P10xx and P20xx-based designs Features Replaces 11 crystals, 2 oscillators and 3 clock generators; lowers cost, power and area Integrated terminations on LP-HCSL PCIe outputs; eliminate 24 resistors, saving 41mm2 of board area Industrial temperature range operation; supports demanding environmental conditions Advanced 3.3V CMOS process; high-performance, low-power Supports independent spread spectrum on Sys_CCB/DDRCLK and PCIe outputs Available in 48-pin TSSOP and space-saving 7 x 7 mm 48-pin VFQFPN with 0.5mm pad pitch; reduced board space without the need for fine-pitch assembly techniques Block Diagram SCLK SDATA ^FS0 ^FS1 ^SEL100#_66 ^SELPCIE125#_100 X1 25MHz Crystal X2 Control Logic Cr...