HMC7044 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

HMC7044
Manufacturer

ADI
ChipWorker Part#

CW983387576
Description

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

Datasheet

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HMC7044 Specifications

Attribute	Attribute Value

Part Number	HMC7044
Manufacturer	ADI
ChipWorker Part#	CW983387576
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs

Product Description

Product Details
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
JESD204B clock generation
Cellular infrastructure (multicarrier GSM, LTE, W-CDMA)
Data converter clocking
Microwave baseband cards
Phase array reference distribution
### 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
Up to 2 buffered voltage controlled oscillator (VCXO) outputs
Up to 4 input clocks in LVDS, LVPECL, CMOS, and CML modes
Frequency holdover mode to maintain output frequency
Loss of signal (LOS) detection and hitless reference switching
4× GPIOs alarms/status indicators to determine the health of the system
External VCO input to support up to 6000 MHz
On-board regulators for excellent PSRR
68-lead, 10 mm × 10 mm LFCSP package

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