LMK03002 Texas instruments

LMK03002

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LMK03002

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Описание

The LMK03002/LMK03002C precision clock conditioners combine the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. The devices integrate a Voltage Controlled Oscillator (VCO), a high performance Integer-N Phase Locked Loop (PLL), a partially integrated loop filter, and four LVPECL clock output distribution blocks. The VCO output is optionally accessible on the Fout port. Internally, the VCO output goes through a VCO Divider to feed the various clock distribution blocks. Each clock distribution block includes a programmable divider, a phase synchronization circuit, a programmable delay, a clock output mux, and an LVPECL output buffer. This allows multiple integer-related and phase-adjusted copies of the reference to be distributed to four system components. The clock conditioners come in a 48-pin WQFN package and are footprint compatible with other clocking devices in the same family.

Integrated VCO with Very Low Phase Noise Floor
Integrated Integer-N PLL with Outstanding Normalized Phase Noise Contribution of
-224 dBc/Hz
Clock Generator Performance (10 Hz - 20 MHz)
- LMK03002C: 200 fs RMS Jitter
Jitter Cleaner Performance Grade (12 kHz to 20 MHz)
- LMK03002: 800 fs RMS Jitter
- LMK03002C: 400 fs RMS Jitter
VCO Frequency: 1566 to 1724 MHz
Clock Output Frequency Range of 1 to 862 MHz
4 LVPECL Clock Outputs
Partially Integrated Loop Filter
Dedicated Divider and Delay Blocks on Each Clock Output
Pin Compatible Family of Clocking Devices
3.15 to 3.45 V Operation
Package: 48 Pin WQFN (7.0 x 7.0 x 0.8 mm)

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Function	Clock generator
Number of outputs	4
Output frequency (max) (MHz)	862
Core supply voltage (V)	3.3
Output supply voltage (V)	3.3
Input type	LVCMOS, LVPECL
Output type	LVPECL
Operating temperature range (°C)	-40 to 85
Features	Integrated VCO, uWire
Rating	Catalog