I'm running more than a few days late on mail, but my inclination would be to order a custom programmed SI5355 from Silicon Labs for $5 - no minimum quantity and 2 week turnaround. Admittedly the part is a qfn (SMT Quad Flat-pack No-leads) but it is easy, can run off an external user provided reference clock, and has reasonable jitter ('typically 50ps - not as good as an SI570 but a whole lot better than an AD9851 DDS), and for a T1 clock should be perfectly suitable.
From the Silabs page: The Si5355 is a highly flexible clock generator capable of synthesizing four completely non-integer related frequencies up to 200 MHz. The device has four banks of outputs with each bank supporting two CMOS outputs at the same frequency. Using Silicon Laboratories' patented MultiSynth fractional divider technology, all outputs are guaranteed to have 0 ppm frequency synthesis error regardless of configuration, enabling the replacement of multiple clock ICs and crystal oscillators with a single device. Through a flexible web configuration utility called ClockBuilder™ (www.silabs.com/ClockBuilder), factory-customized pincontrolled Si5355 devices are available in two weeks without minimum order quantity restrictions. The Si5355 supports up to three independent, pin-selectable device configurations, enabling one device to replace three separate clock ICs. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.