HMC7044 High Performance, 3.2 GHz, 14-Output Jitter Attenuator with JESD204B

The HMC7044 is a high performance, dual-loop, integer N jitter attenuator capable of performing reference selection and generation of ultralow phase noise frequencies for high speed data converters with either parallel or serial (JESD204B type) interfaces. The HMC7044 features two integer mode PLLs and overlapping on-chip VCOs that are SPI-selectable with wide tuning ranges around 2.5 GHz and 3 GHz, respectively. The device is designed to meet the requirements of GSM and LTE base station designs, and offers a wide range of clock management and distribution features to simplify baseband and radio card clock tree designs. The HMC7044 provides 14 low noise and configurable outputs to offer flexibility in interfacing with many different components including data converters, field-programmable gate arrays (FPGAs), and mixer local oscillators (LOs).

The DCLK and SYSREF clock outputs of the HMC7044 can be configured to support signaling standards, such as CML, LVDS, LVPECL, and LVCMOS, and different bias settings to offset varying board insertion losses.

Applications

Features and Benefits

Ultralow rms jitter: 44 fs typical (12 kHz to 20 MHz) at 2457.6 MHz

Noise floor: −156 dBc/Hz at 2457.6 MHz

Low phase noise: −141.7 dBc/Hz at 800 kHz, 983.04 MHz output

Up to 14 LVDS, LVPECL, or CML type device clocks (DCLKs) from PLL2

Maximum CLKOUTx/CLKOUTx and SCLKOUTx/SCLKOUTx frequency up to 3200 MHz

JESD204B-compatible system reference (SYSREF) pulses

25 ps analog, and ½ VCO cycle digital delay independently programmable on each of 14 clock output channels

SPI-programmable phase noise vs. power consumption

SYSREF valid interrupt to simplify JESD204B synchronization

Narrow-band, dual core VCOs

See data sheet for additional features

Clock & Timing

Clock Generation Devices

Aerospace and Defense

Solutions

IBIS Models

HMC7044 IBIS Model .IBS

Data Sheets

Document	note
HMC7044: High Performance, 3.2 GHz, 14-Output Jitter Attenuator with JESD204B Data Sheet (Rev. A)	PDF 1.63 M

User Guides

Document	note
UG-826: Evaluating the HMC7044 Dual Loop Clock Jitter Cleaner (Rev. 0)	PDF 855.28 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
HMC7044LP10BE Production	68 ld QFN (10x10mm w/6.3mm)	OTH 50	-40 to 85C	17.15	12.75	Y
HMC7044LP10BETR Production	68 ld QFN (10x10mm w/6.3mm)	REEL 500	-40 to 85C	17.15	12.75	Y