HMC7044B
RECOMMENDED FOR NEW DESIGNSHigh Performance, 3.2 GHz, 14-Output Jitter Attenuator with JESD204B and JESD204C Support
- Part Models
- 2
- 1ku List Price
- Starting From $15.69
Part Details
- Ultra-low 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- and JESD204C-compatible system reference (SYSREF) pulses
- Narrow-band, dual core VCOs
- 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 and JESD204C synchronization
- Up to 2 buffered voltage-controlled crystal 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
The HMC7044B, which is the revised version of the HMC7044, is a high performance, dual loop, integer N jitter attenuator capable of performing reference selection and generation of ultra-low phase noise frequencies for high-speed data converters with either parallel or serial (JESD204B and JESD204C type) interfaces. In the HMC7044B, the phase alignment of the outputs on edge cases such as temperature and supply voltage is improved. The HMC7044B features two integer mode PLLs and overlapping onchip 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 HMC7044B 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 HMC7044B 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 and JESD204C clock generation
- Cellular infrastructure (multicarrier GSM, LTE, W-CDMA)
- Data converter clocking
- Microwave baseband cards
- Phase array reference distribution
Documentation
Data Sheet 1
User Guide 1
Technical Articles 2
Video 2
Product Selection Guide 1
Device Drivers 1
Thought Leadership Page 1
Analog Dialogue 3
Webcast 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| HMC7044BLP10BE | 68-Lead QFN (10mm x 10mm w/ EP) | ||
| HMC7044BLP10BETR | 68-Lead QFN (10mm x 10mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Fanout Buffers & Splitters 2 | ||
| LTC6955 | LAST TIME BUY | Ultralow Jitter, 7.5GHz, 11 Output Fanout Buffer Family |
| HMC7043 | RECOMMENDED FOR NEW DESIGNS |
High Performance, 3.2 GHz, 14-Output Fanout Buffer with JESD204B/JESD204C |
| Parts | Product Life Cycle | Description |
|---|---|---|
| HMC7044 | RECOMMENDED FOR NEW DESIGNS | High Performance, 3.2 GHz, 14-Output Jitter Attenuator with JESD204B and JESD204C Support |
Tools & Simulations
IBIS Model 1
ADIsimCLK
Open Tool