Product Summary

The LMK04808BISQX/NOPB is a clock conditioner with superior clock jitter cleaning, generation, and distribution with advanced features to meet next generation system requirements. The dual loop PLLatinum architecture enables 111 fs rms jitter (12 kHz to 20MHz) using a low noise VCXO module or sub-200 fs rms jitter (12 kHz to 20 MHz) using a low cost external crystal and varactor diode. The applications of the LMK04808BISQX/NOPB include Data Converter Clocking / Wireless Infrastructure, Networking, SONET/SDH, DSLAM, Medical / Video / Military / Aerospace and Test and Measurement.

Parametrics

LMK04808BISQX/NOPB absolute maximum ratings: (1)Supply Voltage, VCC: -0.3 to 3.6 V; (2)Input Voltage, VIN: -0.3 to (VCC + 0.3) V; (3)Storage Temperature Range, TSTG: -65 to 150℃; (4)Lead Temperature (solder 4 seconds), TL: +260℃; (5)Junction Temperature, TJ: 125℃.

Features

LMK04808BISQX/NOPB features: (1)Ultra-Low RMS Jitter Performance; (2)Dual Loop PLLatinum PLL Architecture; (3)Integrated Low-Noise Crystal Oscillator Circuit; (4)Holdover mode when input clocks are lost; (5)Normalized [1 Hz] PLL noise floor of -227 dBc/Hz; (6)Phase detector rate up to 155 MHz; (7)OSCin frequency-doubler; (8)Integrated Low-Noise VCO; (9)2 redundant input clocks with LOS; (10)50% duty cycle output divides, 1 to 1045 (even and odd); (11)LVPECL, LVDS, or LVCMOS programmable outputs; (12)Precision digital delay, fixed or dynamically adjustable; (13)25 ps step analog delay control.; (14)14 differential outputs. Up to 26 single ended; (15)Clock rates of up to 1536 MHz; (16)0-delay mode; (17)Three default clock outputs at power up; (18)Multi-mode: Dual PLL, single PLL, and clock distribution; (19)Industrial Temperature Range: -40 to 85℃; (20)3.15 V to 3.45 V operation; (21)Package: 64-pin LLP.

Diagrams

LMK04808BISQX/NOPB block diagram

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