LMK03002CISQSLASHNOPB中文资料德州仪器数据手册PDF规格书

1FEATURES

2• 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)

TARGET APPLICATIONS

• Data Converter Clocking

• Networking, SONET/SDH, DSLAM

• Wireless Infrastructure

• Medical

• Test and Measurement

• Military / Aerospace

DESCRIPTION

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.