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Analog Devices Inc. ADF4106SCPZ-EP
- Part No.:
- ADF4106SCPZ-EP
- Manufacturer:
- Analog Devices Inc.
- Package:
- 20-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADF4106SCPZ-EP.pdf
- Description:
- IC FREQ SYNTH 20LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,433
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Product details
Overview
ADF4106SCPZ-EP from Analog Devices is a radiation-hardened, high-frequency PLL frequency synthesizer designed for local oscillator generation in defense-grade RF up/down-conversion paths. It supports RF input frequencies up to 6.0 GHz, operates across −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 for satellite transceivers and secure military radios.
For engineers reviewing the ADF4106SCPZ-EP datasheet, ADF4106SCPZ-EP pinout, ADF4106SCPZ-EP application, or ADF4106SCPZ-EP equivalent, key selection criteria include its extended VP supply (up to 5.5 V) enabling wide-tuning-range VCO drive, military-grade temperature operation, and compatibility with high-bandwidth loop filters for spurious-free 5.8 GHz synthesis in aerospace platforms.
Technical Context
The ADF4106SCPZ-EP implements a digital phase-frequency detector (PFD) with antibacklash pulse control, a precision charge pump with RSET-programmable current, and a fully programmable N-divider (N = BP + A) using 13-bit B and 6-bit A counters plus dual-modulus prescaler (P/P+1). Its 14-bit R counter enables flexible reference input division from 20 MHz to 300 MHz.
It supports three-state charge pump output, hardware/software power-down modes, and multiplexed MUXOUT for external monitoring of lock status, scaled RF, or scaled REFIN - all while maintaining <2% ICP matching and ±2.5% absolute charge pump accuracy over temperature.
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. |
| Charge Pump Current Range | 625 µA to 5 mA - set via external RSET (3.0–11 kΩ); enables optimization of loop filter bandwidth and VCO tuning linearity. |
| PFD Frequency Max | 104 MHz - allows high-resolution frequency steps and fast lock times in narrowband systems. |
| Phase Noise Floor | −223 dBc/Hz - normalized synthesizer noise floor; critical for low-error-rate communication links. |
| Operating Temperature | −55°C to +125°C - qualified for space-qualified and airborne radar applications per AQEC standards. |
| Supply Voltages | AVDD/DVDD = 2.7–3.3 V; VP = AVDD to 5.5 V - separate VP rail extends VCO tuning voltage beyond digital supply. |
| Lock Detection | Analog + digital lock detect outputs - provides redundant, real-time PLL status for safety-critical systems. |
Pinout & Package
ADF4106SCPZ-EP is packaged in a 20-lead LFCSP_VQ (4 mm × 4 mm, CP-20-6) with exposed thermal pad requiring connection to AGND. The package supports reflow soldering at 260°C peak for 40 sec and offers θJA = 30.4°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RSET | Charge pump current reference | Connects to CPGND via resistor (e.g., 5.1 kΩ) to set ICP = 5 mA; nominal voltage = 0.66 V. |
| CP | Charge pump output | Drives external loop filter; sinks/sources ±ICP; three-state when CE = low or power-down bit active. |
| CPGND | Charge pump ground return | Dedicated low-noise ground path for CP node; must be isolated from DGND/AGND planes except at single-point AGND. |
| RFINA / RFINB | Differential RF input | Accepts ac-coupled VCO output; RFINB requires 100 pF bypass to ground; max differential swing ±320 mV. |
| REFIN | Reference clock input | CMOS-compatible (0.8–3.3 V p-p); biased at AVDD/2; supports 20–300 MHz with slew rate >50 V/µs below 20 MHz. |
| CLK / DATA / LE | 3-wire serial interface | 24-bit shift register loads latch contents on rising CLK edge; LE selects target register (R/A/B/Function). |
| MUXOUT | Multiplexed diagnostic output | Configurable to output lock detect, divided RF (÷32), or divided REFIN (÷2) for system-level verification. |
| CE | Chip enable | Active-low hardware power-down; reduces total current to 10 µA; places CP in high-impedance state. |
| VP | Charge pump power supply | Independent rail (≥AVDD, ≤5.5 V); enables 5 V tuning range in 3 V systems - eliminates level-shifting for wide-VCOs. |
Key Features
| Feature | Design Value |
|---|---|
| Enhanced Product qualification | Controlled baseline, single fab/assembly site, AQEC-compliant for defense/aerospace use. |
| Dual-modulus prescaler options | Programmable 8/9, 16/17, 32/33, 64/65 - enables integer-N synthesis across wide RF bands with minimal PFD spurs. |
| Separate VP supply | Supports 5.5 V tuning voltage while operating digital/analog cores at 3.3 V - simplifies VCO integration in Ka-band designs. |
| Antibacklash pulse width control | Programmable via register bits - minimizes reference spurs caused by PFD dead zone in high-gain loops. |
| Lock detect redundancy | Both analog (comparator-based) and digital (counter-based) lock signals - meets fault-tolerant system requirements. |
Applications
| Satellite Transceiver LO | Aerospace Radar Synthesizer |
|---|---|
Use Scenario: Generating stable local oscillator signals for X-band (8–12 GHz) downconverters in LEO satellite payloads. IC Role / Device Role / Timing Role: Integer-N PLL core providing 5.8 GHz reference to external doubler/mixer; driven by 10 MHz OCXO via REFIN. Use Value: −76.5 dBc/Hz phase noise at 1 kHz offset enables <1° RMS jitter for coherent demodulation in high-data-rate telemetry links. | Use Scenario: Frequency agile LO generation in airborne fire-control radar front-ends requiring rapid channel switching. IC Role / Device Role / Timing Role: High-bandwidth (100 kHz loop BW) synthesizer driving YIG-tuned oscillator; configured with P=32, fPFD=1 MHz. Use Value: 6.0 GHz RF input capability and −83.5 dBc/Hz phase noise at 1 kHz offset support sub-meter range resolution in pulsed-Doppler systems. |
| Secure Military Radio | Test Equipment Local Oscillator |
Use Scenario: Frequency-hopping synthesizer in Type 1 encrypted HF/VHF tactical radios operating in extreme ambient conditions. IC Role / Device Role / Timing Role: Core PLL generating hopping LO (200–500 MHz) with fast lock (<100 µs) via optimized loop filter and programmable ICP. Use Value: −55°C to +125°C operation and hardware CE pin enable cold-start reliability and deterministic power-down during encryption key changes. | Use Scenario: Precision signal source in broadband spectrum analyzers requiring ultra-low spurious and calibrated output. IC Role / Device Role / Timing Role: Reference synthesizer feeding harmonic mixer chains; uses MUXOUT for real-time lock validation during calibration sweeps. Use Value: −90 dBc typical reference spurs at 200 kHz offset and programmable antibacklash reduce measurement uncertainty in EMI pre-compliance testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PLL synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADF4153ACPZ-RL7 | Higher max RF input (6.8 GHz), integrated VCO, no external loop filter required; lacks VP rail and military temp rating. | Best for compact, lower-cost test equipment where board space is constrained and full MIL-STD-883 compliance is not required. | Select when integrated VCO simplifies design but extended tuning voltage and radiation tolerance are unnecessary. |
| HMC703LP4E | Wider PFD range (up to 250 MHz), superior phase noise (−230 dBc/Hz floor), but only commercial temp (−40°C to +85°C) and no AQEC support. | Suitable for high-performance instrumentation where ultimate spectral purity matters more than environmental ruggedness. | Choose for lab-grade signal generators needing lowest possible in-band noise, accepting reduced temperature margin and no defense qualification. |
Compared with ADF4106SCPZ-EP, ADF4153ACPZ-RL7 trades military reliability and VP flexibility for integration and higher RF上限, while HMC703LP4E delivers superior phase noise at the cost of temperature range and enhanced product traceability - making ADF4106SCPZ-EP uniquely suited for mission-critical embedded RF systems demanding both performance and assured supply.
Availability
ADF4106SCPZ-EP is available at Aetrix Electronics and suitable for satellite communications, airborne radar systems, and secure military radio platforms requiring stable component supply under extended temperature and radiation-hardened conditions.
Supply support for ADF4106SCPZ-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 digital signal processing semiconductors, headquartered in Norwood, MA.
The ADF4106 product line delivers radiation-tolerant, high-frequency PLL synthesizers engineered specifically for defense, aerospace, and space applications where reliability, temperature resilience, and long-term supply assurance are mandatory.
FAQ
What is the maximum RF input frequency supported by the ADF4106SCPZ-EP?
The ADF4106SCPZ-EP supports an RF input frequency range of 0.5 GHz to 6.0 GHz. This upper limit is validated for operation with P = 32 prescaler setting and ensures the internal CMOS counters remain within specification. Exceeding 6.0 GHz risks violating the 325 MHz maximum prescaler output frequency limit when using P = 16, which could cause loss of lock or increased spurious content.
Does the ADF4106SCPZ-EP require an external loop filter?
Yes, the ADF4106SCPZ-EP requires an external passive loop filter between the CP pin and the VCO tuning input. It does not integrate a loop filter or VCO. The charge pump output drives the filter's capacitor network, and the filter's transfer function directly determines PLL stability, lock time, and phase noise performance - design guidance is provided in the datasheet's PCB layout section.
How is the charge pump current programmed on the ADF4106SCPZ-EP?
The ADF4106SCPZ-EP charge pump current is programmed by connecting an external resistor (RSET) between the RSET pin and CPGND. With RSET = 5.1 kΩ, the maximum ICP is 5 mA; the relationship is ICP = 25.5 V / RSET. The device also supports programmable current scaling via register bits to select fractions of the RSET-defined maximum, enabling fine-grained loop gain adjustment.
What is the purpose of the VP pin on the ADF4106SCPZ-EP?
The VP pin on the ADF4106SCPZ-EP supplies power to the charge pump circuitry independently from AVDD/DVDD. It can be set as high as 5.5 V - allowing the CP output to drive VCO tuning voltages up to 5 V even when the core logic runs at 3.3 V. This eliminates level-shifting components and supports wide-tuning-range VCOs commonly used in Ka-band and radar applications.
Is the ADF4106SCPZ-EP pin-compatible with other ADF41xx series devices?
No, the ADF4106SCPZ-EP is not pin-compatible with other ADF41xx variants. Its 20-lead LFCSP (CP-20-6) footprint differs from the 16-lead TSSOP used by ADF4106SRU-EP. While functional register maps overlap significantly, physical layout, thermal pad requirements, and pin assignments (e.g., MUXOUT location, VP placement) are unique to the CPZ package - PCB redesign is required for substitution.
ADF4106SCPZ-EP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 20-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 20-LFCSP-VQ (4x3.75)
ADF4106SCPZ-EP FAQ
1.How can I place an order for ADF4106SCPZ-EP through Aetrix?
Please submit a Request for Quotation (RFQ) for ADF4106SCPZ-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 ADF4106SCPZ-EP reliable?
The price and inventory of ADF4106SCPZ-EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADF4106SCPZ-EP is usually 5 days.
3.What payment methods are accepted for ADF4106SCPZ-EP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADF4106SCPZ-EP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADF4106SCPZ-EP?
ADF4106SCPZ-EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADF4106SCPZ-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 ADF4106SCPZ-EP?
For technical support, including ADF4106SCPZ-EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADF4106SCPZ-EP requirements.
6.How does Aetrix verify that ADF4106SCPZ-EP is sourced from the original manufacturer or authorized distributors?
All ADF4106SCPZ-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 ADF4106SCPZ-EP meets industry standards.
7.What is the process for return or replacement of ADF4106SCPZ-EP?
All ADF4106SCPZ-EP units undergo pre-shipment inspection (PSI). If there is an issue with ADF4106SCPZ-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 ADF4106SCPZ-EP part is unused and in its original packaging.
Return procedure for ADF4106SCPZ-EP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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