Микросхема MT8941BE. Есть количество. Цена договорная.Features
• Provides T1 clock at 1.544 MHz locked to an 8
kHz reference clock (frame pulse)
• Provides CEPT clock at 2.048 MHz and ST-BUS
clock and timing signals locked to an internal or
external 8 kHz reference clock
• Typical inherent output jitter (unfiltered)= 0.07 UI
peak-to-peak
• Typical jitter attenuation at: 10 Hz=23 dB,100
Hz=43 dB, 5 to 40 kHz ≥ 64 dB
• Jitter-free “FREE-RUN” mode
• Uncommitted two-input NAND gate
• Low power CMOS technology