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STMicroelectronics ST3DV520QTR
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- Part No.:
- ST3DV520QTR
- Manufacturer:
- STMicroelectronics
- Package:
- 56-WFQFN Exposed Pad
- Datasheet:
-
ST3DV520QTR.pdf
- Description:
- IC SWITCH SPDT X 4 7.5OHM 56QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,064
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Product details
Overview
ST3DV520QTR from STMicroelectronics is a 16-to-8-bit bidirectional analog multiplexer/demultiplexer switch with 5.5 Ω typical RON, 450 MHz -3 dB bandwidth, and 250 ps propagation delay. It operates from 3.0–3.6 V, supports HD analog video routing, and features HI-Z off-state for unselected paths.
For engineers reviewing the ST3DV520QTR datasheet, ST3DV520QTR pinout, ST3DV520QTR application, or ST3DV520QTR equivalent, key selection criteria include channel count (16:8), crosstalk (-40 dB @ 250 MHz), bit-to-bit skew (200 ps), and QFN56 package compatibility with high-density PCB layouts.
Technical Context
The ST3DV520 implements a dual-bus analog MUX/DEMUX architecture with a single SEL control line selecting between two 8-bit output buses (A0–H0 or A1–H1). Each of the eight input channels (A–H) routes bidirectionally to either bus under logic-level control.
Its low 7.5 pF typical channel-on capacitance and near-zero propagation delay enable preservation of signal integrity in high-speed analog video paths. The device achieves <40 dB crosstalk at 250 MHz and maintains ≤1 Ω ΔRON matching across all channels under 3.0–3.6 V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON | 5.5 Ω typical - ensures minimal voltage drop and insertion loss in analog signal paths |
| BW (–3 dB) | 450 MHz typical - supports full-bandwidth HD video (e.g., 1080p RGB) without attenuation |
| Crosstalk | –40 dB @ 250 MHz - prevents interference between adjacent channels in dense video routing |
| Propagation delay | 250 ps typical - enables precise timing alignment across multi-channel analog systems |
| Bit-to-bit skew | 200 ps typical - maintains phase coherence across parallel video data lanes |
| VCC range | 3.0–3.6 V - compatible with standard 3.3 V LVTTL logic and low-noise analog supply rails |
| ICC (quiescent) | 20 µA typical - minimizes standby power in always-on video switching nodes |
Pinout & Package
ST3DV520QTR is housed in a lead-free QFN56 (11 × 5 mm) package with exposed thermal pad, optimized for thermal dissipation and high-frequency signal integrity in compact HD video modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A–H | 8-bit bidirectional analog input bus | Primary signal source/sink ports; support differential or single-ended analog video signals |
| A0–H0 | 8-bit multiplexed output bus 0 | Selected output path when SEL = L; routed from A–H with HI-Z on A1–H1 |
| A1–H1 | 8-bit multiplexed output bus 1 | Selected output path when SEL = H; routed from A–H with HI-Z on A0–H0 |
| SEL | Bus selection control input | Active-high logic selects A0–H0 (SEL=L) or A1–H1 (SEL=H); TTL-compatible threshold |
| VCC (pins 4,10,18,27,38,50,56) | Power supply | Decoupling required at each pin; shared 3.3 V rail for analog and digital sections |
| GND (pins 1,6,9,13,16,21,24,28,33,39,44,49,53,55) | Ground reference | Multiple low-inductance ground connections minimize return-path impedance and EMI |
Key Features
| Feature | Design Value |
|---|---|
| Low RON flatness | 0.8 Ω max variation - ensures uniform gain and DC offset across all 16 channels |
| Channel isolation (OIRR) | –36 dB @ 250 MHz - suppresses leakage from active to inactive output buses |
| Input capacitance | 2–3 pF typical - reduces loading on upstream drivers and preserves rise/fall times |
| ESD robustness | >2 kV HBM - protects against handling damage during board assembly and field service |
| Off-state leakage | ±5 µA max - prevents signal bleed-through when switches are disabled |
Applications
| HD Analog Video Switching | Multi-Source Display Routing |
|---|---|
Use Scenario: Switching RGBHV or YPbPr signals between multiple HD sources (e.g., Blu-ray, set-top box, game console) into a single display controller. IC Role / Device Role / Timing Role: Bidirectional 16:8 analog MUX/DEMUX with sub-nanosecond timing alignment across all channels. Use Value: Maintains 1080p signal fidelity via 450 MHz bandwidth and –40 dB crosstalk, eliminating ghosting or color bleeding. | Use Scenario: Dynamic reconfiguration of video inputs in professional AV matrix switchers supporting simultaneous HDMI-to-analog conversion paths. IC Role / Device Role / Timing Role: Dual-bus demultiplexer enabling real-time routing to two independent downstream processing chains. Use Value: 200 ps bit-to-bit skew and 250 ps propagation delay ensure pixel-aligned timing across parallel video streams. |
| Embedded Graphics Multiplexing | Test Equipment Signal Path Control |
Use Scenario: Sharing a single LVDS or analog video interface between multiple SoC outputs in space-constrained industrial HMIs. IC Role / Device Role / Timing Role: Low-RON analog switch enabling seamless handoff between GPU sources without DC bias shift. Use Value: 5.5 Ω RON and ±5 µA off-leakage prevent image distortion or black-level drift during source transitions. | Use Scenario: Programmable signal path selection in automated test equipment for calibrating multi-channel video analyzers. IC Role / Device Role / Timing Role: Precision analog switch with validated 450 MHz bandwidth used as reference-grade signal gate. Use Value: 7.5 pF channel-on capacitance and 0.8 Ω RON flatness ensure measurement repeatability within ±0.5% amplitude error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3DV642AIZQER | 64-channel, 3.3 V, 6 GHz bandwidth, but larger QFN80 package and higher ICC (1 mA) | Targeted at PCIe Gen4/USB3.2 signal switching, not optimized for analog video crosstalk | Choose only if >1 GHz bandwidth and digital protocol compliance are required over analog fidelity |
| ADG774ABRSZ-REEL | Quad SPDT, 3.3 V, 300 MHz BW, 4.5 Ω RON, SOIC-20 package | Limited to 4×2 switching; lacks 16:8 bus architecture and sub-ns timing specs | Acceptable for low-channel-count analog routing where footprint and cost outweigh performance needs |
Compared with TS3DV642AIZQER and ADG774ABRSZ-REEL, ST3DV520QTR uniquely balances 16:8 bus scalability, 450 MHz analog bandwidth, and –40 dB crosstalk in a compact QFN56 - making it optimal for HD video MUX/DEMUX where channel density and signal purity are co-critical.
Availability
ST3DV520QTR is available at Aetrix Electronics and suitable for HD analog video switching, multi-source display routing, and embedded graphics multiplexing requiring stable component supply and long-term design-in support.
Supply support for ST3DV520QTR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and analog/mixed-signal technologies with broad manufacturing and quality certifications.
The ST3DV520 belongs to ST's high-bandwidth analog switch product line, engineered specifically for HD video signal integrity in consumer and professional AV equipment where low crosstalk, precise timing, and compact packaging are essential.
FAQ
What is the maximum operating frequency supported by ST3DV520QTR?
The ST3DV520QTR delivers a typical –3 dB bandwidth of 450 MHz, verified under 100 Ω load conditions per datasheet Table 8. This enables full support for 1080p60 analog video signals with preserved edge fidelity and minimal group delay distortion across the entire channel set.
Does ST3DV520QTR support bidirectional signal flow?
Yes - the ST3DV520QTR is fully bidirectional: any of the A–H pins can serve as input or output depending on system configuration. Signal direction is determined by external source/sink placement, not internal architecture, and RON and capacitance specs apply equally in both directions.
How does the SEL pin control bus routing?
The SEL pin is a single logic input that determines output bus selection: when SEL = LOW, signals from A–H route to A0–H0 while A1–H1 enter HI-Z; when SEL = HIGH, routing shifts to A1–H1 with A0–H0 in HI-Z. No additional address decoding is required.
Is ST3DV520QTR still in active production?
ST3DV520QTR is marked "Obsolete Product(s)" in its official datasheet (Doc ID 15092 Rev 3), but Aetrix Electronics maintains legacy inventory and offers extended lifecycle support including obsolescence forecasting, cross-reference assistance, and last-time-buy planning for qualified industrial customers.
ST3DV520QTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 7.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 3V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 9ns, 8.5ns
- -3db Bandwidth:
- 450MHz
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 6pF
- Current - Leakage (IS(off)) (Max):
- 5µA
- Crosstalk:
- -45dB @ 250MHz
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-QFN (11x5)
ST3DV520QTR FAQ
1.How can I place an order for ST3DV520QTR through Aetrix?
Please submit a Request for Quotation (RFQ) for ST3DV520QTR 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 ST3DV520QTR reliable?
The price and inventory of ST3DV520QTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST3DV520QTR is usually 5 days.
3.What payment methods are accepted for ST3DV520QTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST3DV520QTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST3DV520QTR?
ST3DV520QTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST3DV520QTR 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 ST3DV520QTR?
For technical support, including ST3DV520QTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST3DV520QTR requirements.
6.How does Aetrix verify that ST3DV520QTR is sourced from the original manufacturer or authorized distributors?
All ST3DV520QTR 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 ST3DV520QTR meets industry standards.
7.What is the process for return or replacement of ST3DV520QTR?
All ST3DV520QTR units undergo pre-shipment inspection (PSI). If there is an issue with ST3DV520QTR, 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 ST3DV520QTR part is unused and in its original packaging.
Return procedure for ST3DV520QTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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