LMK03200 Datasheet, PDF (1/53 Pages) National Semiconductor (TI) – Precision 0-Delay Clock Conditioner with Integrated VCO

LMK03200
www.ti.com
SNAS478C – JULY 2009 – REVISED APRIL 2013
LMK03200 Family Precision 0-Delay Clock Conditioner with Integrated VCO
Check for Samples: LMK03200
1 Introduction
1.1 Features
12
• Integrated VCO with Very Low Phase Noise
Floor
• Integrated Integer-N PLL with Outstanding
Normalized Phase Noise Contribution of -224
dBc/Hz
• VCO Divider Values of 2 to 8 (All Divides)
– Bypassable with VCO Mux When Not in 0-
delay Mode
• Channel Divider Values of 1, 2 to 510 (Even
Divides)
• LVDS and LVPECL Clock Outputs
• Partially Integrated Loop Filter
• Dedicated Divider and Delay Blocks on Each
Clock Output
• 0-delay Outputs
• Internal or External Feedback of Output Clock
• Delay Blocks on N and R Phase Detector Inputs
for Lead/Lag Global Skew Adjust
• 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)
• 200 fs RMS Clock Generator Performance (10
Hz to 20 MHz) with a clean input clock
1.2 Target Applications
• Data Converter Clocking
• Networking, SONET/SDH, DSLAM
• Wireless Infrastructure
• Medical
• Test and Measurement
• Military / Aerospace
Device
LMK03200
Outputs
3 LVDS
5 LVPECL
VCO
Tuning Range RMS Jitter
(MHz)
(fs)
1185 - 1296
800
Recovered
³GLUW\´ FORFN RU
clean clock
OSCin
LMK03200
Family
Precision Clock
Conditioner
Fout
> 1 Gsps
ADC
CLKout0
CLKout1
CLKout4
CLKout7
LMX2531
PLL+VCO
Serializer/
Deserializer
FPGA
DAC
0XOWLSOH ³FOHDQ´ FORFNV DW
different frequencies
1.3 Description
The LMK03200 family of precision clock conditioners combine the functions of jitter
cleaning/reconditioning, multiplication, and 0-delay 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 up to eight outputs in various LVDS and LVPECL combinations.
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.
1
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2
PRODUCTION DATA information is current as of publication date. Products conform to
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processing does not necessarily include testing of all parameters.
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