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Analog Devices Inc. HMC795LP5ETR
- Part No.:
- HMC795LP5ETR
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Modulators
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
HMC795LP5ETR.pdf
- Description:
- RF MODULATOR 50MHZ-2.8GHZ 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,311
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Product details
Overview
HMC795LP5ETR from Analog Devices (formerly Hittite Microwave) is a SiGe wideband direct quadrature modulator with integrated 6-bit digital-controlled VGA, operating from 50 MHz to 2800 MHz. It delivers +10 dBm output P1dB, +22 dBm OIP3, and supports DC–440 MHz baseband inputs for cellular/3G, WiMAX/4G, and ISM transceiver applications.
For engineers reviewing the HMC795LP5ETR datasheet, HMC795LP5ETR pinout, HMC795LP5ETR application, or HMC795LP5ETR equivalent, key selection criteria include calibrated carrier suppression (−62 dBc), 0.5 dB gain step resolution via SPI/parallel interface, differential RF output architecture, and 5×5 mm QFN package compatibility with high-density RF layouts.
Technical Context
The HMC795LP5ETR implements a SiGe-based quadrature modulation core with independent I/Q mixer paths, LO input supporting −9 to +3 dBm in single-ended or differential mode, and on-chip VGA providing up to 32 dB of linear gain control. Its architecture maintains high sideband suppression (53 dBc) and low carrier feedthrough (−62 dBc calibrated) across temperature and frequency.
Gain control is implemented via six parallel AGC bits or three-wire SPI, enabling programmable lookup tables for fine-grained 0.1 dB steps (reduced range) or per-step calibration. Baseband inputs are high-impedance (5 kΩ || 100 pF), DC-biased at 1.3 V, and accept up to 1.4 Vpp differential signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 50–2800 MHz: Enables single-device coverage of GSM, UMTS, LTE, WiMAX, and ISM bands without band switching. |
| Output P1dB | +10 dBm typ.: Sufficient drive level for direct connection to power amplifiers in macro/micro base stations. |
| OIP3 | +22 dBm typ.: Supports high-linearity W-CDMA and OFDM waveforms with low ACPR degradation. |
| Carrier Suppression (Cal) | −62 dBc typ.: Reduces LO leakage impact on receiver desensitization in full-duplex transceivers. |
| Sideband Suppression (Uncal) | 53 dBc typ.: Minimizes image energy without factory calibration, easing system-level alignment. |
| Baseband Bandwidth | DC–440 MHz: Accommodates wideband QAM, OFDMA, and multi-carrier signals without external filtering. |
| Gain Control Range | 0 to −31.5 dB: Enables precise RF output leveling across varying DAC and PA input requirements. |
Pinout & Package
HMC795LP5ETR is housed in a 32-lead, 5×5 mm QFN package (LP5) with exposed ground paddle. All GND pins (3, 6, 19, 22) and the paddle must be soldered to a low-inductance RF/DC ground plane per Hittite's land pattern recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RstB (Pin 1) | Digital reset input | Active-low asynchronous reset for gain control register and internal bias states. |
| VCCRF (Pin 2) | RF output driver supply | 5 V supply powering differential open-collector RF output stage (24 mA max). |
| RFN / RFP (Pins 4–5) | Differential RF output | Open-collector outputs requiring external pull-up inductors to VCCRF and AC-coupling caps. |
| AGC0–AGC5 (Pins 7–12) | Parallel gain control inputs | 6-bit binary word setting VGA attenuation in 0.5 dB steps (0 to −31.5 dB range). |
| QP / QN (Pins 14, 15) | Q-channel baseband input | High-Z differential input biased at 1.3 V; accepts 1.4 Vpp differential signal for full dynamic range. |
| VCCMIX (Pins 16, 25) | I/Q mixer supply | 5 V supply for quadrature mixer core (31.7 mA typical); requires local decoupling. |
| VCCLO (Pin 18) | LO chain supply | 5 V supply for LO buffer and distribution (65.2 mA typical); isolated from analog supplies. |
Key Features
| Feature | Design Value |
|---|---|
| SiGe process integration | Enables wide bandwidth (50–2800 MHz) and high linearity (+22 dBm OIP3) in compact LP5 package. |
| Calibrated carrier suppression | −62 dBc at +25°C enables reduced post-modulation filtering and improved receiver blocking margin. |
| SPI + parallel gain interface | Supports both serial configuration (for space-constrained designs) and fast parallel updates (for real-time AGC loops). |
| Differential RF output | Reduces common-mode noise coupling and improves rejection of even-order distortion in transmit chains. |
| DC–440 MHz baseband support | Eliminates need for external baseband amplifiers or filters in wideband digital modulation systems. |
Applications
| UMTS/GSM Base Stations | WiMAX/4G Fixed Wireless |
|---|---|
Use Scenario: Transmit path in macrocell or microcell BTS handling multiple carriers and modulation schemes (QPSK, 16-QAM). IC Role / Device Role / Timing Role: Direct quadrature modulator converting baseband I/Q to RF with minimal image/LO leakage. Use Value: Calibrated −62 dBc carrier suppression reduces front-end filter complexity and improves adjacent channel leakage ratio (ACLR). | Use Scenario: Outdoor CPE unit transmitting OFDM signals in 2.3–2.7 GHz licensed bands. IC Role / Device Role / Timing Role: Wideband modulator supporting 20+ MHz channel bandwidths with linear gain control. Use Value: +22 dBm OIP3 ensures low ACPR under high-PAPR OFDM conditions without predistortion. |
| ISM Transceivers (900/2400 MHz) | Cellular Infrastructure IF Modulation |
Use Scenario: Full-duplex industrial telemetry radio operating in unlicensed 900 MHz or 2.4 GHz ISM bands. IC Role / Device Role / Timing Role: Quadrature modulator with integrated VGA enabling adaptive output power control. Use Value: 32 dB gain range in 0.5 dB steps allows precise closed-loop TX power management across varying antenna loads. | Use Scenario: Intermediate-frequency upconversion stage in microwave backhaul radios (e.g., 1.95 GHz IF → 7–8 GHz RF). IC Role / Device Role / Timing Role: High-linearity modulator accepting DC-coupled IF I/Q inputs for zero-IF or low-IF architectures. Use Value: DC–440 MHz baseband bandwidth supports complex IF waveforms without baseband reconstruction filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar direct quadrature modulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADL5375-05 | Wider RF range (300–4000 MHz), higher P1dB (+12.5 dBm), but no integrated VGA; requires external gain control. | Better suited for higher-frequency 5G FR1 or point-to-point links above 2.8 GHz. | Select ADL5375-05 when operating >2800 MHz or needing higher output power without VGA integration. |
| HMC6301LP5E | Narrower RF range (1.7–2.7 GHz), lower OIP3 (+19 dBm), but optimized for ultra-low power (75 mA total current). | Targeted at battery-powered small cells or portable test equipment where power efficiency dominates. | Select HMC6301LP5E when prioritizing sub-100 mA current draw over wideband coverage or peak linearity. |
Compared with ADL5375-05 and HMC6301LP5E, the HMC795LP5ETR uniquely balances 50–2800 MHz coverage, integrated 32 dB VGA, and −62 dBc calibrated carrier suppression-making it optimal for cost-sensitive, wideband infrastructure transceivers requiring minimal external components.
Availability
HMC795LP5ETR is available at Aetrix Electronics and suitable for UMTS/GSM base stations, WiMAX/4G fixed wireless access, and ISM transceiver designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for HMC795LP5ETR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices acquired Hittite Microwave in 2014 and continues its high-performance RF IC portfolio, emphasizing broadband, high-linearity, and integrated solutions for communications infrastructure.
The HMC795LP5ETR belongs to Hittite's wideband quadrature modulator product line, designed specifically for digital modulation in cellular, broadband wireless, and ISM applications where integration, calibration stability, and DC-coupled baseband interfaces are critical.
FAQ
What is the recommended LO drive level for HMC795LP5ETR?
The HMC795LP5ETR specifies an LO drive level of −9 to +3 dBm. Operation at 0 dBm is typical for optimal carrier and sideband suppression. The LO may be driven differentially or single-ended, with differential mode offering improved LO return loss (−15 dB) and reduced spurious generation. External matching is required for best performance across 100–5600 MHz LO range.
Does HMC795LP5ETR require external calibration for carrier suppression?
The HMC795LP5ETR achieves −62 dBc carrier suppression only after manual DC offset adjustment of the I/Q baseband inputs at +25°C - this is the "calibrated" condition. Uncalibrated operation yields −46 dBc typical. The device does not include on-chip calibration circuitry; system-level calibration is required for best suppression, and settings remain stable over temperature once established.
What supply voltages does HMC795LP5ETR require?
HMC795LP5ETR requires two separate supplies: analog rails (VCCMIX, VCCRF, VCCDAC, VCCLO) at 4.5–5.5 V (5 V nominal), and digital rail VDD3 at 3.0–3.5 V (3.3 V nominal). All analog supplies must be equal. Total current consumption is 106–145 mA depending on gain state and frequency; power-down current is 1 µA.
Can HMC795LP5ETR support baseband signals beyond 440 MHz?
No - the HMC795LP5ETR baseband input bandwidth is specified as DC to 440 MHz. Performance degrades outside this range due to internal I/Q path limitations and DAC bandwidth constraints. For wider baseband support (e.g., >500 MHz), consider alternatives like the ADL5375 series or discrete I/Q modulator + VGA combinations.
Is the HMC795LP5ETR pin-compatible with other Hittite LP5 modulators?
No - the HMC795LP5ETR has a unique pinout optimized for its 6-bit parallel gain interface, dual VCCMIX pins, and specific RF/LO/baseband routing. It is not pin-compatible with HMC6301LP5E or HMC797LP5E. PCB layout must follow the exact land pattern in Hittite Application Note AN-1197 to ensure RF integrity and thermal performance.
HMC795LP5ETR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Modulator
- LO Frequency:
- 100MHz ~ 5.6GHz
- RF Frequency:
- 50MHz ~ 2.8GHz
- P1dB:
- 14dBm
- Noise Floor:
- -158dBm/Hz
- Output Power:
- -
- Current - Supply:
- 127 mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Test Frequency:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (5x5)
HMC795LP5ETR FAQ
1.How can I place an order for HMC795LP5ETR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC795LP5ETR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HMC795LP5ETR reliable?
The price and inventory of HMC795LP5ETR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC795LP5ETR is usually 5 days.
3.What payment methods are accepted for HMC795LP5ETR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC795LP5ETR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC795LP5ETR?
HMC795LP5ETR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC795LP5ETR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HMC795LP5ETR?
For technical support, including HMC795LP5ETR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC795LP5ETR requirements.
6.How does Aetrix verify that HMC795LP5ETR is sourced from the original manufacturer or authorized distributors?
All HMC795LP5ETR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HMC795LP5ETR meets industry standards.
7.What is the process for return or replacement of HMC795LP5ETR?
All HMC795LP5ETR units undergo pre-shipment inspection (PSI). If there is an issue with HMC795LP5ETR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HMC795LP5ETR part is unused and in its original packaging.
Return procedure for HMC795LP5ETR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HMC795LP5ETR Tags
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LTC5599IUF#TRPBF
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