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Analog Devices Inc. AD8346ARUZ-REEL
- Part No.:
- AD8346ARUZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Modulators
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD8346ARUZ-REEL.pdf
- Description:
- RF MODULTR 800MHZ-2.5GHZ 16TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AD8346ARUZ-REEL from Analog Devices is a silicon RFIC quadrature modulator operating from 0.8 GHz to 2.5 GHz, delivering −10 dBm typical RF output power with 1° rms quadrature phase error and 0.2 dB I/Q amplitude balance at 1.9 GHz. It integrates a polyphase LO splitter, dual Gilbert-cell mixers, and V-to-I converters for direct RF modulation in wireless transceivers.
For engineers reviewing the AD8346ARUZ-REEL datasheet, AD8346ARUZ-REEL pinout, AD8346ARUZ-REEL application, or AD8346ARUZ-REEL equivalent, key selection criteria include sideband suppression (−36 dBc @ 1.9 GHz), modulation bandwidth (dc to 70 MHz), noise floor (−147 dBm/Hz), and 16-lead TSSOP package compatibility with high-density RF layouts.
Technical Context
The AD8346ARUZ-REEL implements a two-stage polyphase network with buffer amplifiers to generate precise I/Q LO signals across 0.8–2.5 GHz, minimizing phase drift versus frequency and temperature. Its differential baseband inputs (IBBP/IBBN/QBBP/QBBN) interface directly with DACs like the AD9761 via dc- or ac-coupled paths, supporting 2 V p-p differential drive with 1.2 V common-mode bias.
Internally, dual voltage-to-current converters feed Gilbert-cell mixers whose outputs sum into a differential-to-single-ended amplifier driving a 50 Ω ac-coupled RF output (VOUT). Bias control is managed by a bandgap reference and ENBL pin, enabling 1 μA standby current and 2.5 μs turn-on settling to within 0.5 dB of final SSB output power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 0.8 GHz to 2.5 GHz - supports PCS, DCS, GSM, CDMA, and ISM bands without external tuning. |
| Quadrature Phase Error | 1° rms @ 1.9 GHz - enables high-fidelity QPSK/QAM modulation with minimal EVM degradation. |
| I/Q Amplitude Balance | 0.2 dB @ 1.9 GHz - ensures symmetrical sideband generation and >36 dBc sideband suppression. |
| Output Power (SSB) | −10 dBm typ @ 1.9 GHz - sufficient for direct drive of PA stages or further upconversion in multistage transmitters. |
| Modulation Bandwidth | DC to 70 MHz - accommodates wideband digital modulation including 20 MHz LTE channels and OFDM. |
| Noise Floor | −147 dBm/Hz @ 20 MHz offset - preserves SNR in sensitive receiver-shared architectures and low-power transmitters. |
| Supply Voltage | 2.7 V to 5.5 V - compatible with single-supply battery-powered or fixed-rail industrial RF systems. |
| Quiescent Current | 45 mA @ 5 V - balances RF performance and power efficiency for portable and embedded wireless designs. |
Pinout & Package
AD8346ARUZ-REEL is housed in a 16-lead TSSOP package (6.5 mm × 5.1 mm × 1.1 mm), specified for −40°C to +85°C operation and optimized for RF layout with dedicated ground pins (COM1–COM4) and decoupled supply rails (VPS1/VPS2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 15, 16 (IBBP, IBBN, QBBN, QBBP) |
Differential Baseband Inputs | Accept 2 V p-p differential signals biased at 1.2 V; 12 kΩ input impedance enables direct DAC interfacing. |
| 5, 6 (LOIN, LOIP) |
Differential LO Inputs | AC-coupled ports requiring −10 dBm drive; internal ~800 mV bias enables balun-based differential excitation. |
| 7, 12 (VPS1, VPS2) |
Separate Supply Rails | VPS1 powers LO buffers/phase splitter; VPS2 powers V-to-I converters/mixer core-enables independent decoupling. |
| 8 (ENBL) |
Enable Control | Active-high logic input; 2.0 V HI threshold and 0.5 V LO threshold enable clean sleep/wake transitions. |
| 11 (VOUT) |
RF Output | 50 Ω DC-coupled output requiring external AC coupling; delivers SSB signal with −35 dBm carrier feedthrough. |
| 3, 4, 9, 10, 13, 14 (COM1–COM4) |
Ground Terminals | Functionally isolated ground pins per circuit block-critical for minimizing LO leakage and maintaining I/Q orthogonality. |
Key Features
| Feature | Design Value |
|---|---|
| High-Accuracy Quadrature Generation | 1° rms phase error + 0.2 dB amplitude balance over full 0.8–2.5 GHz range enables <2.5% EVM in 16-QAM systems. |
| Integrated Polyphase LO Splitter | Two-stage RC-staggered network with buffer amplifiers achieves stable quadrature without external components or calibration. |
| Low-Noise RF Output Stage | −147 dBm/Hz noise floor and −60 dBc IM3 suppression support high dynamic range in CDMA/OFDMA transmitters. |
| Ultra-Low Power Standby Mode | 1 μA quiescent current during ENBL = LOW reduces system-level power consumption in burst-mode wireless protocols. |
| Robust LO Feedthrough Suppression | −42 dBm typical carrier feedthrough, reducible to <−60 dBm via DAC offset tuning-minimizes receiver desensitization. |
| Wide Modulation Bandwidth | DC to 70 MHz baseband response supports complex waveforms including 20 MHz LTE, 802.11ac, and WiMAX signals. |
Applications
| Cellular Transceiver Front-End | Wireless LAN Transmitter |
|---|---|
|
Use Scenario: Transmit path in PCS/DCS/GSM handset or small-cell base station supporting multiple air interfaces. IC Role / Device Role / Timing Role: Direct-conversion quadrature modulator converting baseband I/Q DAC outputs to RF band (1.8–1.9 GHz). Use Value: Achieves −36 dBc sideband suppression and 2.5% EVM at 1.9 GHz, meeting 3GPP TS 25.104 spectral mask requirements without post-modulation filtering. |
Use Scenario: 802.11a/g/n transmitter in access point or client device operating in 2.4 GHz or 5 GHz ISM bands. IC Role / Device Role / Timing Role: RF modulator accepting 20–40 MHz baseband I/Q signals from WLAN SoC or dedicated DAC. Use Value: 70 MHz modulation bandwidth and −147 dBm/Hz noise floor preserve OFDM subcarrier integrity and adjacent-channel rejection. |
| CDMA Base Station Modulator | Image-Reject Mixer Replacement |
|
Use Scenario: Forward link transmitter in IS-95/CDMA2000 infrastructure equipment requiring high linearity and low ACPR. IC Role / Device Role / Timing Role: High-dynamic-range modulator generating CDMA forward channel with 7.5 MHz RF bandwidth. Use Value: −72 dBc adjacent-channel power ratio (ACPR) and 20 dBm output IP3 meet IS-97D spectral emission limits at full output power. |
Use Scenario: Single-sideband signal generation in test equipment or hybrid PLL synthesizers needing precise image cancellation. IC Role / Device Role / Timing Role: Active image-reject mixer using internal quadrature LO to suppress unwanted sideband by >36 dBc. Use Value: Eliminates discrete phase-shift networks and baluns, reducing BOM count and layout sensitivity in compact RF modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadrature modulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TRF3705IRGET | Wider RF range (0.4–4.2 GHz); higher supply current (65 mA); requires external LO buffering. | Better suited for multiband macro base stations; less optimal for low-power handhelds due to higher IQ. | Select TRF3705IRGET when extending coverage beyond 2.5 GHz or requiring integrated LO divider functionality. |
| ADL5375-05ACPZ-R7 | Narrower RF range (400–6000 MHz but optimized 700–2700 MHz); higher output power (+2 dBm); 24-lead LFCSP package. | Preferred for LTE-A MIMO transmitters needing >0 dBm output; incompatible with TSSOP footprint. | Choose ADL5375-05ACPZ-R7 for high-output, wideband applications where PCB real estate allows larger package. |
Compared with TRF3705IRGET and ADL5375-05ACPZ-R7, AD8346ARUZ-REEL offers superior phase accuracy (1° vs. ≥2.5°) and lower power consumption (45 mA vs. ≥65 mA) in a compact TSSOP, making it optimal for cost-sensitive, precision-critical 1.9 GHz transceivers where layout space and thermal budget are constrained.
Availability
AD8346ARUZ-REEL is available at Aetrix Electronics and suitable for cellular transceivers, wireless LAN transmitters, CDMA base stations, and SSB signal generators requiring stable component supply across industrial temperature ranges and multi-year production cycles.
Supply support for AD8346ARUZ-REEL 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 is a global leader in high-performance analog, mixed-signal, and RF ICs, serving communications, industrial, automotive, and healthcare markets with precision signal processing solutions.
The AD8346ARUZ-REEL belongs to Analog Devices' RF transceiver IC product line, engineered specifically for direct-conversion wireless transmitters demanding high quadrature fidelity, low noise, and seamless DAC integration in compact form factors.
FAQ
What is the recommended LO drive level for AD8346ARUZ-REEL?
The AD8346ARUZ-REEL specifies an LO drive level of −12 dBm to −6 dBm, with −10 dBm recommended for optimal sideband suppression and phase accuracy. Driving at −6 dBm improves temperature stability of output power but slightly degrades linearity; exceeding −6 dBm risks increased distortion and reduced IM3 suppression. The LO inputs (LOIP/LOIN) must be AC-coupled due to internal 800 mV bias.
How does AD8346ARUZ-REEL achieve its 1° rms quadrature phase accuracy?
The AD8346ARUZ-REEL achieves 1° rms quadrature phase accuracy through a two-stage polyphase network with staggered RC time constants and integrated buffer amplifiers between stages. This architecture maintains precise 90° phase shift across 0.8–2.5 GHz while compensating for process and temperature variation-no external calibration or trimming is required for AD8346ARUZ-REEL operation.
Can AD8346ARUZ-REEL operate from a 3.3 V supply?
Yes, AD8346ARUZ-REEL operates over a 2.7 V to 5.5 V supply range, fully specified at 3.3 V. At 3.3 V, typical quiescent current is 40 mA, output power drops ~1.5 dB versus 5 V operation, and sideband suppression remains >−34 dBc at 1.9 GHz. Decoupling capacitors (100 pF + 0.01 µF per VPS pin) must be placed close to the AD8346ARUZ-REEL package.
What is the function of the four COM pins on AD8346ARUZ-REEL?
AD8346ARUZ-REEL has six ground terminals: COM1 (pins 3,4) grounds the LO phase splitter and buffers; COM2 (pin 9) and COM3 (pin 10) isolate the input and output stages of the RF amplifier; COM4 (pins 13,14) grounds the V-to-I converters and mixer core. Separating these grounds minimizes crosstalk and preserves I/Q orthogonality-each must connect to a low-impedance ground plane.
How is carrier feedthrough minimized in AD8346ARUZ-REEL?
Carrier feedthrough in AD8346ARUZ-REEL is minimized by inherent quadrature accuracy (1° phase error, 0.2 dB amplitude balance) and can be further reduced to <−60 dBm via external DAC offset tuning. The AD8346ARUZ-REEL's baseband inputs accept precise dc bias (1.2 V) and differential swing (2 V p-p); mismatched offsets between I/Q paths introduce feedthrough, so matched resistor networks or programmable DAC offsets are used for nulling.
AD8346ARUZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Modulator
- LO Frequency:
- 800MHz ~ 2.5GHz
- RF Frequency:
- 800MHz ~ 2.5GHz
- P1dB:
- -3dBm
- Noise Floor:
- -147dBm/Hz
- Output Power:
- -6dBm
- Current - Supply:
- 55 mA
- Voltage - Supply:
- 2.7V ~ 5.5V
- Test Frequency:
- 1.9GHz
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
AD8346ARUZ-REEL FAQ
1.How can I place an order for AD8346ARUZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8346ARUZ-REEL 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 AD8346ARUZ-REEL reliable?
The price and inventory of AD8346ARUZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8346ARUZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8346ARUZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8346ARUZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8346ARUZ-REEL?
AD8346ARUZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8346ARUZ-REEL 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 AD8346ARUZ-REEL?
For technical support, including AD8346ARUZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8346ARUZ-REEL requirements.
6.How does Aetrix verify that AD8346ARUZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8346ARUZ-REEL 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 AD8346ARUZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8346ARUZ-REEL?
All AD8346ARUZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8346ARUZ-REEL, 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 AD8346ARUZ-REEL part is unused and in its original packaging.
Return procedure for AD8346ARUZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD8346ARUZ-REEL Tags
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LTC5599IUF#TRPBF
Analog Devices Inc.
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LTC5599IUF#PBF
Analog Devices Inc.
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LTC5589IUF#PBF
Analog Devices Inc.
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ADL5375-05ACPZ-R7
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ADL5385ACPZ-R7
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AD8346ARUZ-REEL7
Analog Devices Inc.
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LTC5588IPF-1#PBF
Analog Devices Inc.
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ADRF6755ACPZ-R7
Analog Devices Inc.
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TRF370417IRGET
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HMC631LP3ETR
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TRF3705IRGET
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LTC5589IUF#TRPBF
Analog Devices Inc.
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