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Analog Devices Inc./Maxim Integrated MAX11505CUB+
- Part No.:
- MAX11505CUB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Processing
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX11505CUB+.pdf
- Description:
- IC VIDEO FILTER 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:10,585
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Product details
Overview
MAX11505CUB+ from Maxim Integrated is a four-channel, 5th-order standard-definition video filter IC with +6dB output buffers, transparent input clamps, and 0.8dB high-frequency peaking on Channel 1 (8.9MHz −3dB bandwidth); it drives two 150Ω video loads per channel and is used in CVBS signal conditioning for set-top boxes and DVRs.
For engineers reviewing the MAX11505CUB+ datasheet, MAX11505CUB+ pinout, MAX11505CUB+ application, or MAX11505CUB+ equivalent, this page delivers verified specifications, real-world timing behavior, load-driving capability, passband response differentiation vs. MAX11504, and ESD-protected output design guidance for SDTV signal chain integration.
Technical Context
The MAX11505CUB+ implements four independent 5th-order lowpass filters with transparent clamps on all inputs-enabling direct AC- or DC-coupled DAC interfacing-and +6dB gain output buffers optimized for 2VP-P video swing into dual 75Ω back-terminated loads. Channel 1 features intentional 0.8dB peaking to compensate system-level high-frequency rolloff in CVBS paths.
Each channel applies fixed 2× voltage gain plus 280mV DC offset (VOUT = 2 × VIN + 0.28V), maintains ≤0.1% differential gain error and ≤0.3° differential phase error across NTSC signals, and achieves −50dB stopband attenuation at 27MHz while operating from a single +5V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth (Ch1) | 8.9MHz typical - enables full SDTV luminance/chroma bandwidth preservation with HF boost for CVBS compensation |
| −3dB Bandwidth (Ch2–Ch4) | 8.6MHz typical - flat passband response matching legacy SD video standards without peaking |
| Output Gain | +6dB (2× voltage) - drives 2VP-P signal into two parallel 150Ω loads (75Ω back-terminated) without external amplification |
| Differential Gain / Phase | 0.1% / 0.3° - meets NTSC/PAL broadcast-grade linearity requirements for color fidelity |
| ESD Protection | 12kV HBM on outputs - eliminates need for external TVS diodes in consumer video interface designs |
| Supply Voltage | +4.75V to +5.25V - compatible with standard 5V logic rails and avoids LDO regulation overhead |
| Quiescent Current | 24mA to 35mA - enables thermal management in compact µMAX packages with dual-load operation |
Pinout & Package
MAX11505CUB+ is housed in a 10-pin µMAX® package (U10+2), measuring 3.05mm × 3.05mm × 0.95mm, with exposed pad for thermal enhancement and industry-standard footprint compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Video Input Channel 1 | Accepts AC/DC-coupled CVBS; receives 0.8dB HF peaking for system rolloff compensation |
| 2 (IN2) | Video Input Channel 2 | Flat-passband input for Y, R, G, or B signals without frequency shaping |
| 3 (IN3) | Video Input Channel 3 | Flat-passband input supporting multi-channel RGB or component video decoding |
| 4 (IN4) | Video Input Channel 4 | Flat-passband input enabling quad-channel SD video processing (e.g., quad-split DVR) |
| 5 (VCC) | Positive Power Supply | +5V rail requiring 0.1µF + 1µF local bypassing to suppress switching noise in video band |
| 6 (GND) | Analog Ground Reference | Common return for all channels; must be tied to low-impedance ground plane to minimize crosstalk |
| 7 (OUT4) | Video Output Channel 4 | +6dB buffered output driving 2VP-P into dual 75Ω loads; blanking level <1V at termination |
| 8 (OUT3) | Video Output Channel 3 | +6dB buffered output with identical drive strength and DC offset as OUT4 |
| 9 (OUT2) | Video Output Channel 2 | +6dB buffered output supporting simultaneous RGB or Y/C output routing |
| 10 (OUT1) | Video Output Channel 1 | +6dB buffered output with same HF peaking as IN1 - preserves signal integrity end-to-end |
Key Features
| Feature | Design Value |
|---|---|
| Four-channel 5th-order filtering | Provides sharp roll-off (−50dB @ 27MHz) and minimal group delay variation (<120ns across 0–8MHz) for artifact-free SD video |
| Transparent input clamp | Enables seamless interface to both current-output DACs (DC-coupled) and SCART/VCC-terminated sources (AC-coupled) |
| Channel 1 HF peaking | 0.8dB boost at ~8MHz compensates coaxial cable loss and encoder rolloff in CVBS distribution systems |
| +6dB output buffers | Deliver 2VP-P into dual 75Ω loads without external op-amps, reducing BOM count and board space in STB/DVR designs |
| 12kV HBM ESD protection | Eliminates need for discrete ESD protection on video outputs, simplifying layout and improving reliability in unshielded enclosures |
Applications
| Set-Top Box Receivers | Digital Video Recorders (DVRs) |
|---|---|
|
Use Scenario: Processing decoded CVBS output from MPEG-2/4 demodulators before analog RF modulation or composite output. IC Role / Device Role / Timing Role: Anti-aliasing filter and DAC smoothing stage with HF boost on Ch1 to restore luminance edge sharpness degraded by upstream processing. Use Value: Maintains NTSC differential phase/gain compliance (<0.3°/<0.1%) while enabling single-chip quad-channel SD video output without external buffers. |
Use Scenario: Conditioning four independent video streams (e.g., quad-split surveillance feeds) for local analog playback or HDMI upconversion. IC Role / Device Role / Timing Role: Simultaneous reconstruction filtering of RGB/YUV signals from multiple ADCs, with flat response on Ch2–Ch4 and boosted Ch1 for master sync path. Use Value: Reduces PCB area by 60% versus discrete op-amp + RC filter solutions and ensures inter-channel gain matching within 0.02dB. |
| Security Video Systems | SDTV Broadcast Equipment |
|
Use Scenario: Driving analog BNC outputs from embedded DVR SoCs to CCTV monitors over 100m coaxial cable runs. IC Role / Device Role / Timing Role: Final-stage video driver with back-termination support and blanking-level control (<1V) to meet SMPTE RP-168 analog video spec. Use Value: Enables DC-coupled output architecture eliminating bulky 220µF coupling capacitors and associated leakage-induced baseline drift. |
Use Scenario: Reconditioning legacy SDTV broadcast signals (NTSC/PAL) after digital processing in studio routers or format converters. IC Role / Device Role / Timing Role: Standard-definition reconstruction filter with precise 8.6/8.9MHz bandwidth control and multiburst response validated per ITU-R BT.470. Use Value: Guarantees <80dB SNR (NTC-7 weighted) and <−70dB channel crosstalk - critical for multi-source analog switcher applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar video filter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX11504CUB+ | Flat passband on all four channels; no HF peaking; −3dB bandwidth 8.6MHz on all channels | Better suited for RGB/YUV component video where uniform frequency response across all channels is required | Select MAX11504CUB+ when system-level HF loss compensation is handled elsewhere (e.g., encoder or cable equalizer) |
| AD828ARZ | Single-channel, current-feedback op-amp; requires external RC network for 5th-order filtering; no integrated clamp or ESD protection | Used in custom filter designs where programmability or mixed-signal integration is not needed | Choose AD828ARZ only when board space and BOM count are secondary to full analog design flexibility |
Compared with MAX11504CUB+, the MAX11505CUB+ trades uniform channel response for targeted CVBS system compensation; compared with AD828ARZ, it delivers fully integrated, production-ready SD video filtering with guaranteed NTSC performance and zero external passive count.
Availability
MAX11505CUB+ is available at Aetrix Electronics and suitable for set-top box receivers, digital video recorders (DVRs), and security video systems requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.
Supply support for MAX11505CUB+ 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
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX11505CUB+ belongs to Maxim's standard-definition video filter product line, engineered specifically to replace discrete op-amp + RC filter combinations in cost-sensitive, space-constrained SD video equipment.
FAQ
What is the key functional difference between MAX11505CUB+ and MAX11504CUB+?
The MAX11505CUB+ provides 0.8dB high-frequency peaking on Channel 1 (−3dB bandwidth 8.9MHz), while Channels 2–4 maintain flat 8.6MHz response; the MAX11504CUB+ delivers flat 8.6MHz response on all four channels. This makes MAX11505CUB+ ideal for CVBS systems needing compensation for encoder or cable rolloff, whereas MAX11504CUB+ suits RGB/YUV applications requiring uniform channel matching. Both share identical pinout, supply, and output drive capability.
Can MAX11505CUB+ drive two 75Ω video loads simultaneously on each channel?
Yes, the MAX11505CUB+ output buffers are explicitly rated to drive two standard 150Ω loads (i.e., two 75Ω back-terminated lines) per channel with full 2VP-P swing and blanking level below 1V. Thermal calculations confirm safe operation at +70°C ambient with dual-load configuration when using proper PCB copper area and bypassing, as detailed in the junction temperature section of the datasheet.
Does MAX11505CUB+ require external components for basic operation?
No external filtering components are required: the 5th-order lowpass response is fully integrated. Only mandatory external parts are VCC bypass capacitors (0.1µF + 1µF ceramic) and optional AC-coupling capacitors on inputs/outputs. The transparent clamp eliminates need for external DC restoration circuits, and 12kV HBM ESD protection removes requirement for output TVS diodes.
What video standards does MAX11505CUB+ support?
The MAX11505CUB+ supports NTSC, PAL, and SECAM standard-definition video formats. Its differential gain (0.1%) and differential phase (0.3°) performance meets ITU-R BT.470 and SMPTE RP-168 specifications for broadcast-quality analog video. The 8.6MHz/8.9MHz bandwidth aligns with luminance bandwidth requirements for 525-line and 625-line systems.
Is MAX11505CUB+ compatible with DC-coupled DAC outputs?
Yes, MAX11505CUB+ accepts DC-coupled inputs directly: its transparent clamp remains inactive when input stays above GND, allowing true DC coupling. Input voltage must remain within 0V to 1.4V (typical) for DC-coupled operation. This enables direct interface to current-output DACs terminated to ground-no external biasing or coupling capacitors needed.
MAX11505CUB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Filter
- Applications:
- Consumer Video
- Standards:
- NTSC
- Control Interface:
- -
- Voltage - Supply:
- 4.75V ~ 5.25V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-uMAX/uSOP
MAX11505CUB+ FAQ
1.How can I place an order for MAX11505CUB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11505CUB+ 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 MAX11505CUB+ reliable?
The price and inventory of MAX11505CUB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11505CUB+ is usually 5 days.
3.What payment methods are accepted for MAX11505CUB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11505CUB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11505CUB+?
MAX11505CUB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11505CUB+ 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 MAX11505CUB+?
For technical support, including MAX11505CUB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11505CUB+ requirements.
6.How does Aetrix verify that MAX11505CUB+ is sourced from the original manufacturer or authorized distributors?
All MAX11505CUB+ 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 MAX11505CUB+ meets industry standards.
7.What is the process for return or replacement of MAX11505CUB+?
All MAX11505CUB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11505CUB+, 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 MAX11505CUB+ part is unused and in its original packaging.
Return procedure for MAX11505CUB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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