HMC1168LP5ETR
VCO 6.5475/13.095GHZ 2-13V 5X5MM
- Part No.:
- HMC1168LP5ETR
- Manufacturer:
- Analog Devices Inc.
- Category:
- VCOs (Voltage Controlled Oscillators)
- Package:
- 32-VFQFN Exposed Pad, CSP
- Datasheet:
- HMC1168LP5ETR.pdf
- Description:
- VCO 6.5475/13.095GHZ 2-13V 5X5MM
- Quantity:
-
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Product Details
Technical Context
In a microwave signal chain, the HMC1168LP5ETR normally operates as the local frequency-generation source. Its oscillation frequency is controlled through the VTUNE input, allowing a control voltage from 2 V to 13 V to move the RF output across its specified tuning range. The generated RFOUT signal can then feed mixers, frequency converters, modulators, transmit chains, measurement equipment, or other microwave circuits requiring a controlled carrier or local oscillator signal.
The separate RFOUT/2 port is particularly useful in phase-locked frequency-generation systems. According to the device architecture, the main RF output is produced through an internal frequency-doubling path, while the half-frequency signal is made directly available at RFOUT/2. This lower-frequency output can be connected to a PLL or synthesizer feedback path, helping designers lock and stabilize the primary microwave output without first dividing the 12 GHz to 13 GHz signal externally.
Phase-noise performance depends strongly on the quality of the tuning and supply voltages. A low-noise voltage source should be used for VTUNE because noise entering this node can modulate the oscillator and increase phase noise. A low-noise regulator and effective supply decoupling are also recommended for VCC because supply-voltage variation can shift the oscillator frequency through pushing. These considerations are important when integrating the HMC1168LP5ETR into precision microwave radios and instrumentation.
Key Specifications
| Parameter | Specification and Design Significance |
|---|---|
| RF Output Frequency | 12.47 GHz to 13.72 GHz, providing a tunable Ku-band microwave source for radio links, frequency conversion, VSAT equipment, and high-frequency instrumentation. |
| Half-Frequency Output | 6.235 GHz to 6.86 GHz, giving designers a lower-frequency signal that can simplify PLL feedback, frequency monitoring, and synthesizer integration. |
| RFOUT Power | 10 dBm typical, with a specified range of approximately 7 dBm to 14 dBm, providing useful drive power for following microwave stages while reducing the need for an additional buffer in suitable designs. |
| SSB Phase Noise | -113 dBc/Hz typical at a 100 kHz offset, supporting cleaner local-oscillator generation and helping reduce reciprocal mixing and modulation degradation in sensitive RF systems. |
| Tuning Voltage | 2 V to 13 V, allowing an external control circuit, DAC, PLL, or synthesizer loop to adjust the oscillator across its operating frequency range. |
| Supply Voltage and Current | Designed around a 5 V VCC supply with approximately 190 mA typical current at 5 V, giving system designers a clear basis for regulator sizing, thermal planning, and power-budget calculations. |
| Operating Temperature | -40°C to +85°C, enabling operation across a wide industrial temperature range for outdoor communications, industrial controls, and professional test equipment. |
HMC1168LP5ETR Pinout & Package Design
The HMC1168LP5ETR uses a RoHS-compliant 32-lead 5 mm × 5 mm LFCSP package with an exposed ground pad. The tape-and-reel HMC1168LP5ETR version is intended for automated production assembly and uses the HCP-32-1 package option.
| Pin / Connection | Function |
|---|---|
| Pins 5 and 11 - GND | RF/DC ground connections. These pins should be connected directly to a low-impedance ground structure. |
| Pin 12 - RFOUT/2 | AC-coupled half-frequency RF output covering approximately 6.235 GHz to 6.86 GHz and commonly suitable for PLL or synthesizer feedback. |
| Pin 19 - RFOUT | AC-coupled primary microwave output covering 12.47 GHz to 13.72 GHz. |
| Pin 21 - VCC | 5 V supply input. A low-noise, well-decoupled supply is recommended to preserve oscillator phase-noise performance. |
| Pin 29 - VTUNE | Frequency-control and modulation input. The source impedance driving this pin influences modulation bandwidth and noise performance. |
| Exposed Pad | Must be connected to RF/DC ground to provide a low-inductance RF reference and an effective thermal path from the package to the PCB. |
For HMC1168LP5ETR pinout design, the PCB should follow microwave layout practices rather than ordinary low-frequency routing rules. RF signal traces should maintain approximately 50-ohm characteristic impedance, and the package ground leads and exposed backside ground pad should connect directly to the ground plane. Multiple grounding vias should be placed around and beneath the package to connect top and bottom ground structures with low inductance.
Keep RFOUT and RFOUT/2 traces short and controlled-impedance, separate the tuning line from noisy digital signals, and place supply decoupling close to VCC. These layout practices help preserve the phase-noise, output-power, and frequency-stability performance specified in the HMC1168LP5ETR datasheet.
Key Features
- 12.47 GHz to 13.72 GHz integrated VCO: provides a directly tunable microwave source for Ku-band radio, measurement, and frequency-conversion systems, reducing the need to construct a discrete high-frequency oscillator.
- 6.235 GHz to 6.86 GHz half-frequency output: provides a convenient lower-frequency feedback signal for PLL and synthesizer circuits, potentially simplifying frequency locking compared with externally dividing the full RF output.
- -113 dBc/Hz typical phase noise at 100 kHz offset: helps maintain spectral purity in microwave local-oscillator applications, supporting improved receiver sensitivity and cleaner modulation in communication equipment.
- Approximately 10 dBm typical RF output: provides practical signal level for driving mixers and other microwave stages in many system architectures, reducing dependence on additional gain stages where the downstream input level is compatible.
- Integrated resonator and tuning circuitry: eliminates the need for an external resonator, reducing external component count and making compact RF modules easier to implement.
- 2 V to 13 V tuning range: enables frequency control from PLL loop filters, DACs, synthesizers, and analog control circuits, providing flexibility for both locked and free-running oscillator designs.
- 5 mm × 5 mm 32-lead LFCSP: supports compact microwave PCB layouts while the exposed ground pad provides the RF grounding and thermal connection required in high-frequency designs.
HMC1168LP5ETR Applications
Point-to-Point and Multipoint Microwave RadiosUsage scenario: Microwave communication equipment needs a stable tunable local oscillator for frequency conversion in transmitter or receiver signal chains. IC role: The HMC1168LP5ETR generates a 12.47 GHz to 13.72 GHz microwave signal, while its half-frequency output can be used by a PLL feedback system. Design value: Integrated frequency generation, useful output power, and low phase noise help reduce oscillator complexity while supporting cleaner microwave conversion and communication performance. |
VSAT Satellite Communication EquipmentUsage scenario: Very small aperture terminal systems require microwave local oscillators for uplink/downlink frequency-generation and conversion stages. IC role: The HMC1168LP5ETR provides a tunable Ku-band oscillator signal that can be integrated into a controlled or phase-locked frequency source. Design value: Its compact MMIC architecture reduces external RF components while low phase noise helps maintain signal quality in satellite communication hardware. |
RF and Microwave Test EquipmentUsage scenario: Signal generators, automated RF testers, and laboratory instruments require controllable microwave sources over defined frequency ranges. IC role: The HMC1168LP5ETR converts an analog tuning voltage into a microwave output and can operate as a swept, free-running, or phase-locked source. Design value: The wide tuning range and predictable tuning sensitivity allow designers to build compact frequency-generation modules for measurement and production-test platforms. |
Industrial Microwave and Control SystemsUsage scenario: Industrial RF equipment may require a microwave source for sensing, monitoring, control, frequency conversion, or specialized high-frequency instrumentation. IC role: The device supplies a controllable microwave carrier and an additional half-frequency output for monitoring or frequency-control circuitry. Design value: The -40°C to +85°C operating range, compact package, and integrated oscillator architecture make it suitable for professional equipment operating outside tightly controlled laboratory environments. |
HMC1168LP5ETR Equivalent & Alternatives
When searching for an HMC1168LP5ETR equivalent, frequency coverage is the first parameter to compare. VCO devices with similar packages or supply voltages are not automatically drop-in replacements because tuning range, output power, phase noise, pushing, pulling, and PLL feedback frequency can differ substantially.
| Device | Main Frequency Range | Typical RF Output | Typical Phase Noise at 100 kHz | Selection Consideration |
|---|---|---|---|---|
| HMC1168LP5ETR | 12.47 GHz to 13.72 GHz | 10 dBm | -113 dBc/Hz | Best suited when the required oscillator range falls within approximately 12.47 GHz to 13.72 GHz and a 6.235 GHz to 6.86 GHz half-frequency output is useful. |
| HMC1169 | 12.92 GHz to 14.07 GHz | 11.5 dBm | -113 dBc/Hz | Better suited to designs requiring a somewhat higher frequency range and slightly higher typical output power. |
| HMC1164 | 10.38 GHz to 11.30 GHz | 8 dBm | -114 dBc/Hz | Designed for a substantially lower frequency range and should only be considered when the system frequency plan can move into the 10 GHz to 11 GHz region. |
HMC1168LP5ETR vs HMC1169
Compared with the HMC1169, the HMC1168LP5ETR is optimized for a lower 12.47 GHz to 13.72 GHz range, while the HMC1169 operates from approximately 12.92 GHz to 14.07 GHz. The HMC1169 also provides about 11.5 dBm typical RF output compared with approximately 10 dBm for the HMC1168LP5ETR. Both devices specify approximately -113 dBc/Hz typical phase noise at a 100 kHz offset and use a similar 5 mm × 5 mm 32-lead LFCSP architecture.
Selection advice: Choose HMC1168LP5ETR when the required channel plan extends below 12.92 GHz or centers on its 12.47 GHz to 13.72 GHz operating window. Consider HMC1169 when frequencies above 13.72 GHz are required or when the additional typical RF output power is advantageous. A PCB-level substitution should only be made after comparing the complete pinout, tuning characteristics, bias requirements, RF performance, and loop design.
HMC1168LP5ETR vs HMC1164
The HMC1168LP5ETR and HMC1164 belong to the same general MMIC VCO family but target different microwave bands. HMC1168LP5ETR covers 12.47 GHz to 13.72 GHz, whereas HMC1164 operates from approximately 10.38 GHz to 11.30 GHz. HMC1164 also has lower typical RF output power at about 8 dBm, although its typical 100 kHz phase-noise specification is approximately -114 dBc/Hz.
Selection advice: HMC1164 is not a frequency-equivalent replacement for HMC1168LP5ETR. It is appropriate only when the system has been designed for the lower 10 GHz to 11 GHz frequency range. For existing HMC1168LP5ETR designs, frequency compatibility should take priority over package similarity.
Quality & Reliability Considerations
HMC1168LP5ETR devices should be sourced as original Analog Devices components through traceable supply channels. Incoming inspection can include package marking verification, label and lot-code checks, dimensional inspection, packaging inspection, and electrical testing when required by the procurement or quality-control process.
The device is ESD sensitive. The HMC1168 datasheet specifies a 300 V Human Body Model rating and a 300 V field-induced charged-device rating, so proper ESD-safe handling, grounded workstations, conductive packaging, and controlled assembly procedures should be used throughout storage and production.
For production and high-reliability purchasing, lot traceability, date-code records, manufacturer documentation, and inspection records should be retained where required. The HMC1168LP5ETR is RoHS compliant and has an MSL3 package rating, which should be considered during storage, floor-life management, and reflow assembly.
Availability & Supply Support
The HMC1168LP5ETR is the tape-and-reel ordering version of the HMC1168 family and is suitable for automated manufacturing and volume PCB assembly. Analog Devices currently identifies the HMC1168 family as suitable for new designs, supporting its use in ongoing microwave system development.
For prototype, pilot-run, and bulk procurement, availability should be confirmed against current authorized or traceable supply-channel inventory. Volume orders, scheduled deliveries, and long-term supply planning can be arranged according to available stock, factory lead time, required date code, and project demand.
For programs requiring continuing supply, procurement teams should verify lead time early and plan safety stock for critical RF components. This is particularly important for microwave products where changing to another VCO may require frequency-plan, PLL, PCB, and RF-performance requalification rather than a simple component substitution.
About Analog Devices Inc.
Analog Devices Inc. is a major global semiconductor manufacturer with extensive technology portfolios covering analog, mixed-signal, RF, microwave, power-management, data-conversion, sensing, and signal-processing products. Its RF and microwave portfolio includes amplifiers, mixers, synthesizers, PLLs, VCOs, attenuators, switches, and other components used throughout communications, aerospace, instrumentation, industrial, and electronic test systems.
The HMC1168LP5ETR reflects Analog Devices' microwave integration capability by combining the oscillator resonator, active negative-resistance circuitry, varactor tuning function, RF output path, and half-frequency output in a compact MMIC package. This level of integration can simplify the implementation of high-frequency local-oscillator subsystems compared with discrete oscillator architectures.
HMC1168LP5ETR FAQ
What is the HMC1168LP5ETR?
The HMC1168LP5ETR is a 12.47 GHz to 13.72 GHz MMIC voltage controlled oscillator manufactured by Analog Devices Inc. It provides approximately 10 dBm typical RF output, a 6.235 GHz to 6.86 GHz half-frequency output, and approximately -113 dBc/Hz typical SSB phase noise at a 100 kHz offset.
Where can I find the HMC1168LP5ETR datasheet download?
The HMC1168LP5ETR datasheet is covered by the Analog Devices HMC1168 technical documentation. The official datasheet provides electrical specifications, absolute maximum ratings, HMC1168LP5ETR pinout information, typical performance curves, theory of operation, PCB recommendations, package dimensions, and ordering information.
What should be considered in an HMC1168LP5ETR pinout design?
HMC1168LP5ETR pinout design should provide strong RF grounding for GND pins and the exposed pad, controlled 50-ohm RF traces for RFOUT and RFOUT/2, short signal paths, multiple ground vias, low-noise VCC decoupling, and a clean VTUNE routing path. The exposed pad must be connected to RF/DC ground.
What is a typical HMC1168LP5ETR application?
A typical HMC1168LP5ETR application is microwave local-oscillator generation in point-to-point radios, multipoint communication systems, VSAT terminals, RF test equipment, or industrial microwave controls. The half-frequency output also makes the device useful in PLL-controlled oscillator architectures.
What is an HMC1168LP5ETR equivalent?
There is no universal drop-in HMC1168LP5ETR equivalent because a replacement must match the required frequency range, tuning characteristic, output power, phase noise, package, supply conditions, and PLL architecture. HMC1169 can be considered for systems needing a slightly higher 12.92 GHz to 14.07 GHz range, while HMC1164 targets a substantially lower 10.38 GHz to 11.30 GHz range and is not a direct frequency replacement.
What is the HMC1168LP5ETR tuning voltage?
The specified VTUNE operating range is 2 V to 13 V. Applying a variable voltage to VTUNE adjusts the oscillator frequency across its operating range. A low-noise tuning source is recommended because noise at the VTUNE input can degrade phase-noise performance.
Does the HMC1168LP5ETR require an external resonator?
No. The HMC1168LP5ETR integrates the resonator and oscillator circuitry within the MMIC. It also does not require external RF output matching components, helping simplify microwave circuit implementation.
What is the difference between RFOUT and RFOUT/2?
RFOUT is the main 12.47 GHz to 13.72 GHz oscillator output, while RFOUT/2 provides a 6.235 GHz to 6.86 GHz half-frequency signal. RFOUT/2 can be useful for PLL or synthesizer feedback because it allows the oscillator to be monitored and locked at a lower frequency.
HMC1168LP5ETR Technical Information
- Specifications
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Specifications
- Product Attributes
- Attribute Value
- Manufacturer:
- Analog Devices Inc.
- Series:
- HMC1168
- Package/Case:
- 32-VFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Frequency Range:
- 6.235 ~ 6.86GHz, 12.47 ~ 13.72GHz
- Frequency - Center:
- 6.5475GHz, 13.095GHz
- Voltage - Supply:
- 5V
- Tuning Voltage (VDC):
- 2 V ~ 13 V
- 2nd Harmonic, Typ (dBc):
- 17
- Icc Max:
- 240mA
- Pushing (MHz/V):
- 2
- Power (dBm):
- 2.5 ±3.5, 10.5±3.5
- Phase Noise Typ (dBc/Hz):
- -85
- Operating Temperature:
- -40°C ~ 85°C
- Size / Dimension:
- 0.197" L x 0.197" W (5.00mm x 5.00mm)
- Height:
- 0.039" (1.00mm)
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HMC1168LP5ETR Sourcing & Technical Support
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- Part Number
- HMC1168LP5ETR
- Manufacturer
- Analog Devices Inc.
- Package
- 32-VFQFN Exposed Pad, CSP
- Category
- VCOs (Voltage Controlled Oscillators)
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