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Analog Devices Inc. ADF4106SRU-EP
- Part No.:
- ADF4106SRU-EP
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADF4106SRU-EP.pdf
- Description:
- IC FREQ SYNTH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,312
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Product details
Overview
ADF4106SRU-EP from Analog Devices is a radiation-hardened, military-grade PLL frequency synthesizer IC designed for local oscillator generation in RF up/down-conversion stages of defense and aerospace systems. It supports RF input frequencies up to 6.0 GHz, operates from −55°C to +125°C, features dual-modulus prescaling (8/9 to 64/65), programmable charge pump current (625 µA–5 mA), and integrates analog/digital lock detect. It is used in satellite transceivers requiring stable, wideband LO synthesis under extreme environmental conditions.
For engineers reviewing the ADF4106SRU-EP datasheet, ADF4106SRU-EP pinout, ADF4106SRU-EP application, or ADF4106SRU-EP equivalent, this page delivers verified specifications, military-qualified thermal and electrical performance, TSSOP-16 package layout guidance, and direct alternatives for space-grade PLL design validation and supply continuity planning.
Technical Context
The ADF4106SRU-EP implements a digital phase-frequency detector (PFD) with antibacklash pulse control, a precision charge pump with separate VP supply (up to 5.5 V), and a fully programmable N-divider (N = BP + A) using 6-bit A and 13-bit B counters plus dual-modulus prescaler (P/P+1). Its architecture enables high-resolution frequency synthesis while maintaining low in-band phase noise.
It accepts REFIN from 20 MHz to 300 MHz and RFIN from 0.5 GHz to 6.0 GHz, supports 3-wire serial interface (CLK/DATA/LE), and provides MUXOUT for external monitoring of lock status, scaled RF, or scaled reference. The device uses separate analog (AVDD) and digital (DVDD) supplies-both 2.7 V to 3.3 V-and requires AGND/DGND/CPGND isolation per RF design best practices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Input Frequency | 0.5 GHz to 6.0 GHz - supports direct synthesis up to Ku-band without frequency doublers. |
| PFD Max Frequency | 104 MHz - enables fine channel spacing and fast lock times in narrowband loops. |
| Charge Pump Current Range | 625 µA to 5 mA - adjustable via RSET (3.0 kΩ–11 kΩ) for optimized loop filter design and VCO tuning voltage range. |
| Phase Noise Floor | −223 dBc/Hz - normalized synthesizer noise floor enabling ultra-low jitter LO generation. |
| Operating Temperature | −55°C to +125°C - qualified for extended military/aerospace environments with controlled baseline manufacturing. |
| Supply Voltages | AVDD/DVDD = 2.7–3.3 V; VP = AVDD to 5.5 V - independent VP allows 5 V tuning voltage in 3 V systems. |
| Lock Detection | Analog + digital lock detect outputs - provides redundant, system-level PLL status verification. |
Pinout & Package
ADF4106SRU-EP is packaged in a 16-lead Thin Shrink Small Outline Package (TSSOP, RU-16), 4.4 mm × 5.0 mm body, 0.65 mm pitch, with exposed thermal pad not present (LFCSP variant has pad; TSSOP does not).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RSET | Resistor connection point setting max charge pump current (ICP = 5.25/RSET); nominal 0.66 V bias. |
| 2 | CP | Charge pump output driving external loop filter; ±ICP sink/source into VCO tuning line. |
| 3 | CPGND | Dedicated ground return for charge pump circuitry-must be isolated from DGND/AGND planes. |
| 4, 7 | AGND | Analog ground for prescaler and RF front-end; decoupling critical for phase noise performance. |
| 5, 6 | RFINB / RFINA | Differential RF input pair to prescaler; AC-coupled, requires 100 pF bypass and matched trace routing. |
| 8 | REFIN | CMOS reference input (20–300 MHz); internally biased at AVDD/2; supports TTL/CMOS or crystal oscillator drive. |
| 10, 9 | DGND | Digital ground for serial interface and logic; must be connected to AGND at single point near CPGND. |
| 11 | CE | Active-low chip enable-asserting low places device in hardware power-down mode (10 µA IDD). |
| 12, 13, 14 | CLK / DATA / LE | 3-wire serial interface: rising-edge clocked 24-bit shift register; LE latches data into function registers. |
| 15 | MUXOUT | Programmable output: lock detect, divided RF, or divided REFIN-enables real-time diagnostics without test points. |
| 16 | VP | Independent charge pump supply (≥AVDD, ≤5.5 V)-extends VCO tuning range beyond AVDD limits. |
Key Features
| Feature | Design Value |
|---|---|
| Separate VP supply | Enables 5 V tuning voltage headroom in 3 V systems-eliminates need for external LDO or level-shifting. |
| Dual-modulus prescaler | Configurable 8/9, 16/17, 32/33, or 64/65 ratios-supports wide RF range with integer-N resolution down to kHz steps. |
| Antibacklash pulse width | Programmable (2.9 ns default)-reduces reference spurs and improves PFD stability under transient load conditions. |
| Military temperature qualification | −55°C to +125°C operation with AQEC compliance-validated for defense/aerospace deployment without derating. |
| Hardware/software power-down | CE pin or F2 register bit enables <10 µA standby current-critical for battery-backed or intermittent RF subsystems. |
Applications
| Phased Array Radar Transceiver | Satellite Uplink Modulator |
|---|---|
|
Use Scenario: Beam-steering antenna array requiring rapid, coherent LO switching across multiple RF channels in L/S-band. IC Role / Device Role / Timing Role: Local oscillator synthesizer generating precise, synchronized 2.4–3.6 GHz LO signals with sub-100 fs integrated jitter. Use Value: Enables simultaneous multi-beam formation with <±0.5° phase error across 64 elements using single-reference architecture. |
Use Scenario: Ka-band upconverter in LEO satellite payload where size, radiation tolerance, and thermal stability are mission-critical. IC Role / Device Role / Timing Role: High-reliability PLL synthesizing 27.5 GHz LO from 10 MHz OCXO reference via ×275 multiplication. Use Value: Eliminates frequency doubler stage-reducing component count, insertion loss, and spurious generation in constrained SWaP-C envelope. |
| Secure Military Radio Front-End | Electronic Warfare Signal Generator |
|
Use Scenario: Tactical SDR platform operating in contested spectrum with hopping requirements across 30 MHz–6 GHz. IC Role / Device Role / Timing Role: Wideband integer-N synthesizer providing <100 µs frequency settling with analog lock detect confirmation. Use Value: Supports MIL-STD-188-110B waveform agility while maintaining EMI-compliant spectral purity (<−70 dBc spurs). |
Use Scenario: Portable jammer module needing agile, low-phase-noise LO for broadband noise injection in C/X-band. IC Role / Device Role / Timing Role: Fast-settling PLL core generating swept 4–8 GHz LO with programmable step resolution and lock assurance. Use Value: Delivers −76.5 dBc/Hz @ 1 kHz offset at 5.8 GHz-meeting EW spectral mask requirements without external cleanup filters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PLL synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADF4153A-EP | Integrated VCO (2.2–2.8 GHz); no external VCO needed; lower max RF input (2.8 GHz vs. 6.0 GHz). | Better for compact, fixed-band transceivers; unsuitable for Ku-band or external VCO architectures. | Select when board space is constrained and frequency range fits within 2.2–2.8 GHz; avoid for >3 GHz or modular VCO designs. |
| HMC703LP4E | Fractional-N architecture; higher PFD frequency (≤250 MHz); no separate VP pin; commercial temp grade only (−40°C to +85°C). | Superior for fine-resolution, fast-hopping systems but lacks military temp rating and VP flexibility. | Choose for lab-grade instrumentation or non-mission-critical comms where fractional division and speed outweigh ruggedness needs. |
Compared with ADF4106SRU-EP, ADF4153A-EP reduces BOM count by integrating the VCO but sacrifices bandwidth and external tuning control, while HMC703LP4E offers finer frequency resolution and faster lock but cannot operate in extended temperature or radiation-hardened environments.
Availability
ADF4106SRU-EP is available at Aetrix Electronics and suitable for phased array radar, satellite communications, and secure military radio applications requiring stable component supply across long production lifecycles and extreme environmental conditions.
Supply support for ADF4106SRU-EP 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, Inc. is a global leader in high-performance analog, mixed-signal, and RF ICs, serving precision instrumentation, industrial automation, and defense markets since 1965.
The ADF4106SRU-EP belongs to Analog Devices' Enhanced Product (EP) portfolio-engineered specifically for high-reliability aerospace, defense, and space applications with extended temperature operation, controlled manufacturing baselines, and full AQEC qualification.
FAQ
What is the maximum RF input frequency supported by the ADF4106SRU-EP?
The ADF4106SRU-EP supports an RF input frequency range of 0.5 GHz to 6.0 GHz. This upper limit is validated per datasheet Table 1 and enables direct synthesis in Ku-band applications without requiring external frequency multipliers. Operation above 6.0 GHz is not specified and may violate absolute maximum ratings for the internal prescaler.
Does the ADF4106SRU-EP require an external loop filter?
Yes, the ADF4106SRU-EP requires an external passive loop filter between the CP pin and the VCO tuning input. The device contains no integrated filter components-the charge pump output drives the filter directly, and filter design must match the selected ICP value, PFD frequency, and desired loop bandwidth per ADIsimPLL modeling guidelines.
What is the purpose of the VP pin on the ADF4106SRU-EP?
The VP pin on the ADF4106SRU-EP provides an independent supply for the charge pump, allowing it to operate up to 5.5 V even when AVDD/DVDD are at 3.3 V. This extends the VCO tuning voltage range beyond the digital supply rail-critical for wide-tuning-range VCOs in 3 V systems without adding external level-shifting circuitry.
How is lock detection implemented in the ADF4106SRU-EP?
The ADF4106SRU-EP provides both analog and digital lock detect outputs via the MUXOUT pin. When configured for lock detect mode, MUXOUT asserts a logic-high signal (digital) and/or a voltage threshold crossing (analog) upon achieving stable phase lock-enabling redundant, system-level verification of PLL convergence without external monitoring equipment.
Is the ADF4106SRU-EP pin-compatible with other ADF41xx-EP variants?
No, the ADF4106SRU-EP is not pin-compatible with other ADF41xx-EP devices such as ADF4153A-EP or ADF4159-EP. Pin functions-including RSET, MUXOUT, and VP assignments-differ across the family. PCB layout must be specific to the ADF4106SRU-EP's TSSOP-16 footprint and signal routing requirements per Figure 3 of the datasheet.
ADF4106SRU-EP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Frequency Synthesizer
- PLL:
- Yes
- Input:
- CMOS, TTL
- Output:
- Clock
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 2:1
- Differential - Input:Output:
- Yes/No
- Frequency - Max:
- 6GHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 2.7V ~ 3.3V
- Operating Temperature:
- -55°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
ADF4106SRU-EP FAQ
1.How can I place an order for ADF4106SRU-EP through Aetrix?
Please submit a Request for Quotation (RFQ) for ADF4106SRU-EP 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 ADF4106SRU-EP reliable?
The price and inventory of ADF4106SRU-EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADF4106SRU-EP is usually 5 days.
3.What payment methods are accepted for ADF4106SRU-EP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADF4106SRU-EP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADF4106SRU-EP?
ADF4106SRU-EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADF4106SRU-EP 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 ADF4106SRU-EP?
For technical support, including ADF4106SRU-EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADF4106SRU-EP requirements.
6.How does Aetrix verify that ADF4106SRU-EP is sourced from the original manufacturer or authorized distributors?
All ADF4106SRU-EP 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 ADF4106SRU-EP meets industry standards.
7.What is the process for return or replacement of ADF4106SRU-EP?
All ADF4106SRU-EP units undergo pre-shipment inspection (PSI). If there is an issue with ADF4106SRU-EP, 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 ADF4106SRU-EP part is unused and in its original packaging.
Return procedure for ADF4106SRU-EP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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