ADF4212LBRUZ Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices ADF4212LBRUZ is a dual PLL frequency synthesizer integrating two integer-N phase-locked loops in a 20-pin TSSOP package, supporting RF and IF loop synthesis up to 1.2 GHz and 550 MHz respectively. The device features low phase noise, programmable charge pumps, and 3-wire SPI interface for flexible wireless system design. Available from stock worldwide for communications and instrumentation applications.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- ADF4212LBRUZ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.8200(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual integer-N PLL architecture with independent RF loop to 1.2 GHz and IF loop to 550 MHz, enabling single-chip LO synthesis for dual-conversion radio receivers
- Programmable charge-pump current (1 mA to 4 mA) and selectable reference divider allow flexible loop-filter design and fast lock times across ISM and cellular frequency bands
- 20-pin TSSOP package with 3-wire SPI serial interface simplifies board layout and reduces control-line count in space-constrained RF front-end modules
Applications
The ADF4212LBRUZ is used in dual-conversion wireless receivers, base-station RF synthesizers, and test-and-measurement signal generators where two independent PLL loops must be programmed to different carrier frequencies from a single SPI bus. Its low phase-noise charge-pump architecture and 1.2 GHz RF loop make it suitable for GSM, WCDMA, and ISM-band radio designs requiring stable local-oscillator signals with sub-1 kHz reference spurious suppression.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | RU-20 |
| YTEOL | 10 |
| Analog IC - Other Type | PLL FREQUENCY SYNTHESIZER |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 10mA |
| Supply Voltage-Max (Vsup) | 3.3V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the maximum output frequencies for the RF and IF loops of the ADF4212LBRUZ?
The ADF4212LBRUZ supports an RF PLL loop operating up to 1.2 GHz and an IF PLL loop operating up to 550 MHz. Having 2 independent synthesizer loops in a single 20-pin TSSOP device allows designers to generate both the RF local-oscillator and the IF carrier simultaneously, reducing component count in dual-conversion superheterodyne receiver architectures used in cellular and wireless LAN systems.
How does the programmable charge-pump current affect loop-filter design in the ADF4212LBRUZ?
The ADF4212LBRUZ offers selectable charge-pump currents from 1 mA to 4 mA per loop, which directly scales the open-loop bandwidth of the PLL. A higher 4 mA setting shortens lock time to below 100 µs for frequency hopping in GSM bursts, while a lower 1 mA setting reduces integrated phase noise for narrow-band WCDMA channels. This flexibility lets engineers trade off lock speed against phase-noise performance using a fixed external loop filter.
When is the ADF4212LBRUZ preferred over a single-loop PLL synthesizer for a dual-conversion radio design?
When a receiver requires 2 independent LO frequencies—for example a 900 MHz RF stage and a 45 MHz IF stage—using one ADF4212LBRUZ replaces 2 discrete PLL ICs plus 2 VCO circuits, saving at least 10 passive components and reducing PCB area by approximately 30 mm² compared to dual ADF4110 single-loop solutions. The integrated 20-pin TSSOP footprint also simplifies SPI bus routing since both loops share a single 3-wire interface.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| 1+ | $9.8300 | $9.83 |
| 10+ | $6.6650 | $66.65 |
| 19+ | $5.0600 | $96.14 |
| 500+ | $4.5300 | $2265.00 |
| 1000+ | $3.8200 | $3820.00 |
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