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Analog Devices Inc. DC1710A-A
- Part No.:
- DC1710A-A
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
DC1710A-A.pdf
- Description:
- EVAL BOARD FOR LTC5590
- Quantity:
- Payment:
- Shipping:
Inventory:3,513
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Product details
Overview
LTC5590 from Analog Devices (formerly Linear Technology) is a dual-channel, high-dynamic-range, downconverting RF mixer IC optimized for 600MHz–1.7GHz RF input and 700MHz–1.5GHz LO frequencies. It delivers 8.7dB conversion gain, 26dBm IIP3, and 9.7dB noise figure at 900MHz, with independent channel enable control and low-power mode. It serves as the core RF-to-IF signal translation element in LTE/GSM diversity receivers.
For engineers reviewing the LTC5590 datasheet, LTC5590 pinout, LTC5590 application, or LTC5590 equivalent, this page provides verified functional context, validated pin-level circuit roles, confirmed RF/LO/IF interface specifications, and real-world receiver design constraints - all derived from the official LTC5590IUH#PBF evaluation data and characterization reports.
Technical Context
The LTC5590 integrates two identical passive double-balanced mixer cores, each driven by a shared LO buffer amplifier and paired with dedicated IF amplifiers. Its architecture supports both high-side and low-side LO injection, with internal 50Ω matching on single-ended RF and LO inputs across operating bands.
Each channel features independent ENA/ENB shutdown control and a global ISEL pin to select between normal (242mA total supply current) and low-current (305mA max) operation modes. The differential IF outputs (IFA±, IFB±) are open-collector and require external biasing via inductors or transformer center-taps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 600MHz to 1.7GHz - defines usable cellular band coverage (e.g., Band 12/13/17/20/28 for 700MHz, Band 8 for 900MHz) |
| LO Frequency Range | 700MHz to 1.5GHz - enables high-side LO injection (e.g., LO = 1090MHz for 900MHz RF → 190MHz IF) |
| Conversion Gain | 8.7dB at 900MHz - reduces need for post-mixer gain stages, lowering system noise contribution |
| IIP3 | 26dBm at 900MHz - supports strong adjacent-channel blocker rejection in base station front-ends |
| Noise Figure | 9.7dB at 900MHz - enables use of lossy SAW/BAW IF filters without degrading overall receiver sensitivity |
| Channel Isolation | 53dB at 900MHz - prevents crosstalk between A/B paths in MIMO or diversity architectures |
| Supply Current | 379–484mA total (VCC + VCCIF) at 3.3V - requires robust local regulation and thermal management on PCB |
Pinout & Package
24-lead (5mm × 5mm) plastic QFN package (UH), exposed pad soldered to PCB ground for thermal and electrical integrity. Pin 25 (exposed pad) is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RFA, RFB (1, 6) | Single-ended RF inputs (Ch A/B) | Internally DC-grounded; require series AC-coupling capacitors; matched to 50Ω only when LO is active |
| LO (16) | Single-ended local oscillator input | Internally matched to 50Ω in all enable states; accepts 0dBm drive; DC-blocking capacitor mandatory |
| ENA, ENB (17, 14) | Channel enable controls | Logic-high (>2.5V) activates respective mixer; allows independent power gating for TDD or diversity sequencing |
| ISEL (18) | Low-current mode select | Pull >2.5V to reduce total supply current to ≤305mA; trades ~1–2dB gain and ~1–2dB IIP3 for power savings |
| IFA+, IFA−, IFB+, IFB− (9,10,21,22) | Differential IF amplifier outputs | Open-collector; require external pull-up inductors/transformers to set common-mode voltage and impedance |
| VCCA, VCCB (12, 19) | Mixer/LO buffer supplies | 3.3V regulated inputs; each draws ~94mA; bypass capacitors required within 2mm |
| IFBA, IFBB (20, 11) | IF amplifier bias adjust | DC voltage (~2.2V typical); allows fine-tuning of IF stage linearity and current consumption per channel |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent mixers | Enables simultaneous diversity reception or MIMO processing without external signal routing |
| 50Ω single-ended RF/LO interfaces | Eliminates need for external baluns or matching networks in standard 50Ω system designs |
| High-side and low-side LO support | Permits flexible IF planning (e.g., 190MHz IF with high-side LO avoids image interference in 700–915MHz bands) |
| 15.6dB NF under 5dBm blocking | Ensures stable receiver sensitivity in presence of strong out-of-band interferers (e.g., GSM850 co-location) |
| –40°C to 105°C operation | Validated for outdoor small-cell radios and industrial-grade wireless infrastructure deployments |
Applications
| 3G/4G Diversity Receiver | MIMO Infrastructure Receiver |
|---|---|
|
Use Scenario: Dual-antenna LTE base station front-end receiving Band 13 (777–787MHz) and Band 28 (703–748MHz) signals. IC Role / Device Role / Timing Role: LTC5590 performs parallel RF-to-IF downconversion for both antennas, delivering differential 190MHz IF outputs to separate ADC paths. Use Value: 53dB channel isolation prevents cross-antenna signal leakage; 26dBm IIP3 handles co-site interference from adjacent transmitters. |
Use Scenario: 2×2 MIMO pico-cell access point supporting simultaneous uplink/downlink on Band 8 (880–915MHz). IC Role / Device Role / Timing Role: LTC5590 acts as dual-path RF demodulator, converting two independent RF streams into synchronized differential IF signals for digital beamforming. Use Value: Independent ENA/ENB control enables time-synchronized channel activation; 8.7dB gain reduces cascaded noise figure before IF filtering. |
| GSM/EDGE Base Transceiver Station | High-Dynamic-Range Spectrum Analyzer Front-End |
|
Use Scenario: Multi-band BTS supporting GSM850 (824–849MHz) and GSM900 (880–915MHz) receive paths. IC Role / Device Role / Timing Role: LTC5590 serves as wideband downconverter with high-side LO (e.g., 1090MHz) to generate 190MHz IF for channel-select filtering. Use Value: 9.7dB noise figure preserves weak signal detectability; 1.3W total power fits constrained thermal envelopes in compact radio units. |
Use Scenario: Portable spectrum analyzer requiring broadband RF analysis from 600MHz to 1.7GHz with minimal spurious generation. IC Role / Device Role / Timing Role: LTC5590 functions as first-stage downconverter, translating wide RF spans to fixed IF for digitization and FFT processing. Use Value: –77dBc 2LO–2RF spurs at 995MHz ensure clean spectral representation; 50Ω ports simplify calibration traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel downconverting mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC8192LP5DE | Wider RF range (400MHz–6GHz), higher P1dB (+14.4dBm), but no integrated IF amplifiers; requires external IF gain stages | Better suited for wideband test equipment; less optimal for space-constrained receiver modules needing integrated IF buffering | Select HMC8192LP5DE when IF bandwidth >500MHz or when external IF gain control is preferred |
| MAX19997A | Lower IIP3 (22.5dBm), narrower RF range (800MHz–2.5GHz), integrated LO doubler, but no independent channel shutdown | Targeted at cost-sensitive single-antenna receivers; lacks per-channel power gating for TDD or diversity sequencing | Select MAX19997A for simplified control interface and lower BOM count where 26dBm IIP3 is not required |
Compared with HMC8192LP5DE and MAX19997A, the LTC5590 uniquely combines integrated IF amplifiers, independent channel enable, and 26dBm IIP3 in a 5mm × 5mm QFN - making it optimal for thermally constrained, high-isolation diversity receivers requiring minimal external components.
Availability
LTC5590 is available at Aetrix Electronics and suitable for LTE infrastructure, GSM base stations, and MIMO radio systems requiring stable component supply, full temperature-range validation (–40°C to 105°C), and production-ready RF performance consistency.
Supply support for LTC5590 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 Linear Technology in 2017 and maintains its high-performance RF product lines, emphasizing signal chain integrity, low-noise design, and ruggedized operation for communications infrastructure.
The LTC5590 belongs to Linear's high-dynamic-range mixer family, engineered specifically for cellular base station and small-cell receiver front-ends where linearity, noise, and integration density are critical.
FAQ
What is the recommended LO drive level for optimal performance of the LTC5590?
The LTC5590 is characterized for 0dBm LO drive level across its 700MHz–1.5GHz range, delivering specified conversion gain, IIP3, and noise figure. It maintains robust performance over ±6dBm (–6dBm to +6dBm), but deviations beyond this range degrade linearity and increase spurious output. For the LTC5590, consistent 0dBm drive ensures repeatable RF-to-IF translation in production receiver assemblies.
Can the LTC5590 operate with low-side LO injection, and what are the frequency constraints?
Yes, the LTC5590 supports low-side LO injection for RF frequencies from 1100MHz to 1600MHz, requiring LO = RF – IF (e.g., RF = 1400MHz, IF = 190MHz → LO = 1210MHz). This mode is explicitly validated in the datasheet with measured IIP3 (27.3dBm), NF (9.7dB), and isolation (≥45dB), enabling flexible IF planning in higher-band cellular deployments.
How does the ISEL pin affect the RF performance of the LTC5590?
When ISEL is pulled high (>2.5V), the LTC5590 enters low-current mode, reducing total supply current to ≤305mA but trading ~1.2dB conversion gain and ~1.5dB IIP3 versus normal mode. At 900MHz, gain drops from 8.7dB to ~7.5dB and IIP3 from 26dBm to ~24.5dBm - a deliberate trade-off for thermal or power budget constraints in dense radio modules.
What is the function of the CTA and CTB pins on the LTC5590, and are they required for basic operation?
CTA and CTB (Pins 2 and 5) are RF transformer secondary center-taps for Channels A and B. They carry a nominal 1.2V DC bias and are optional: bypass capacitors here can improve IIP3 in specific LO frequency conditions, but are not required for baseline operation. Leaving them unconnected (DC-isolated) is acceptable and commonly implemented in reference designs like DC1710A.
Does the LTC5590 require external matching components on its RF and LO ports?
Yes - the LTC5590 requires external 100pF series capacitors on RFA/RFB (C1A/C1B) and a 10pF series capacitor on LO (C2) for DC blocking and optimal 50Ω matching. These values are validated in the DC1710A evaluation board schematic and are essential to achieve the published return loss (>12dB) and RF performance specs across 600MHz–1.7GHz.
DC1710A-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Mixer
- Frequency:
- 600MHz ~ 1.7GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- LTC5590
DC1710A-A FAQ
1.How can I place an order for DC1710A-A through Aetrix?
Please submit a Request for Quotation (RFQ) for DC1710A-A 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 DC1710A-A reliable?
The price and inventory of DC1710A-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DC1710A-A is usually 5 days.
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DC1710A-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DC1710A-A 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 DC1710A-A?
For technical support, including DC1710A-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DC1710A-A requirements.
6.How does Aetrix verify that DC1710A-A is sourced from the original manufacturer or authorized distributors?
All DC1710A-A 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 DC1710A-A meets industry standards.
7.What is the process for return or replacement of DC1710A-A?
All DC1710A-A units undergo pre-shipment inspection (PSI). If there is an issue with DC1710A-A, 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 DC1710A-A part is unused and in its original packaging.
Return procedure for DC1710A-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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