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Texas Instruments VSP2272M/2K
- Part No.:
- VSP2272M/2K
- Manufacturer:
- Texas Instruments
- Category:
- Video Processing
- Package:
- 48-VFQFN
- Datasheet:
-
VSP2272M/2K.pdf
- Description:
- IC VIDEO CCD SIGNAL PROC 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,225
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Product details
Overview
VSP2272M/2K from Texas Instruments is a mixed-signal CCD signal processor IC featuring correlated double sampling (CDS), programmable black level clamping, and a 6-dB to 42-dB digitally controlled PGA, delivering 12-bit digital output at up to 28 MHz for digital still cameras and security camera image pipelines.
For engineers reviewing the VSP2272M/2K datasheet, VSP2272M/2K pinout, VSP2272M/2K application, or VSP2272M/2K equivalent, key selection considerations include its 48-pin P-VQFN (RGN) package, −25°C to 85°C operating range, 2.7–3.6 V single-supply operation, 94 mW typical power at 3 V, and 77-dB SNR performance in CCD front-end signal conditioning.
Technical Context
The VSP2272M/2K integrates a complete analog signal chain for CCD sensors: CDS removes reset noise and pixel pedestal variation, while the linear-in-dB PGA enables precise illumination compensation across varying light conditions. Black level clamping is performed post-CDS with fast recovery after gain changes.
It supports single 3-V/3.3-V supply operation and includes stand-by mode consuming only 6 mW. The 12-bit ADC guarantees no missing codes and operates up to 28 MHz, enabling high-resolution, real-time video digitization in portable imaging systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 12-bit - ensures full dynamic range capture without code gaps for CCD output digitization |
| Max Conversion Rate | 28 MHz - supports VGA+ frame rates in digital still and video cameras | PGA Gain Range | 6 dB to 42 dB - digitally programmable for adaptive exposure control under variable lighting |
| Signal-to-Noise Ratio | 77 dB - enables high-fidelity image reconstruction with minimal quantization and thermal noise |
| Supply Voltage | 2.7 V to 3.6 V - compatible with battery-powered portable imaging devices |
| Typical Power Consumption | 94 mW at 3 V - enables thermally constrained designs in compact camera modules |
| Stand-by Power | 6 mW - reduces system-level power during idle or preview modes |
Pinout & Package
The VSP2272M/2K is housed in a 48-lead plastic quad flat no-lead (P-VQFN) package, designated RGN, with exposed thermal pad for enhanced heat dissipation in imaging applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVDD, DVDD | Analog & Digital Supply | Separate 3-V/3.3-V rails decoupled independently to minimize noise coupling between analog signal path and digital logic |
| AGND, DGND | Analog & Digital Ground | Isolated ground planes preserve CDS accuracy and ADC linearity by preventing digital switching noise injection |
| CLKIN, CLKOUT | Master Clock Interface | Accepts external timing reference; outputs buffered clock for synchronized CCD driver and ADC sampling |
| SDATA, SCLK, SEN | Serial Control Interface | 3-wire SPI-compatible bus for configuring PGA gain, clamp timing, and CDS parameters in-system |
| AINP, AINN | Differential CCD Input | High-impedance, low-noise input pair optimized for CCD video signal swing and common-mode rejection |
| D[11:0] | 12-Bit Parallel Data Output | CMOS-compatible parallel bus delivering digitized pixel data at up to 28 MHz for FPGA or ASIC interface |
Key Features
| Feature | Design Value |
|---|---|
| Correlated Double Sampling (CDS) | Removes reset noise and fixed-pattern offset from CCD output, enabling clean analog video extraction before digitization |
| Programmable Black Level Clamping | Stabilizes DC reference point post-CDS to maintain consistent black level across gain changes and temperature drift |
| Linear-in-dB PGA | Provides monotonic, predictable gain adjustment for automatic exposure control without calibration lookup tables |
| No Missing Codes | Guarantees monotonic 12-bit transfer function-critical for accurate histogram generation and auto-white-balance algorithms |
| Single 3-V/3.3-V Supply | Eliminates need for dual-rail power design, reducing BOM count and PCB area in space-constrained camera modules |
Applications
| Digital Still Camera (DSC) | Security Surveillance Camera |
|---|---|
Use Scenario: Capturing high-resolution still images under variable ambient lighting, including low-light indoor and bright outdoor conditions. IC Role / Device Role / Timing Role: Front-end CCD signal conditioner and digitizer-performs CDS, gain scaling, black level stabilization, and 12-bit conversion. Use Value: Enables accurate exposure adaptation and noise-free digitization at up to 28 MHz, supporting 3-MP+ resolution with minimal post-processing overhead. | Use Scenario: Continuous 24/7 video capture in commercial and residential security systems with wide dynamic range requirements. IC Role / Device Role / Timing Role: Analog front-end processor for interline-transfer CCD sensors, providing correlated sampling and programmable gain for WDR enhancement. Use Value: 77-dB SNR and fast black level recovery allow clear image capture in mixed lighting (e.g., backlight + shadow), reducing false motion detection. |
| Digital Video Camera (DVC) | Industrial Machine Vision Sensor |
Use Scenario: Real-time HD video recording with embedded auto-exposure and white balance in handheld camcorders. IC Role / Device Role / Timing Role: Core analog signal processor-handles pixel-level CDS, gain control, and timing-synchronized 12-bit digitization. Use Value: 94 mW typical power and 6 mW stand-by enable extended battery life while maintaining full-frame 30 fps video digitization capability. | Use Scenario: Precision inspection of printed circuit boards or mechanical components using monochrome CCD line or area sensors. IC Role / Device Role / Timing Role: High-fidelity analog signal conditioner ensuring pixel-level accuracy and repeatability across production batches. Use Value: No missing codes and stable 77-dB SNR support sub-pixel measurement fidelity required for automated optical inspection (AOI) algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CCD signal processing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDA8787HN/N1 | 10-bit ADC, 40 MSPS max, integrated sync separator, requires ±5 V supplies | Targeted at broadcast-grade composite video decoding-not optimized for CCD-specific CDS or black level clamping | Choose only if legacy NTSC/PAL decoding is required alongside CCD interfacing |
| AD9826ASTZ | 16-bit ADC, 25 MSPS, no integrated CDS or PGA-requires external analog front-end | Designed for high-precision scientific imaging where external CDS and gain stages are acceptable | Select when ultimate dynamic range (>90 dB) is prioritized over integration and power efficiency |
Compared with TDA8787HN/N1 and AD9826ASTZ, the VSP2272M/2K uniquely integrates CDS, black level clamping, and digitally programmable PGA in a single 3-V, low-power package-reducing component count and layout complexity specifically for portable CCD-based imaging.
Availability
VSP2272M/2K is available at Aetrix Electronics and suitable for digital still cameras, security surveillance systems, and industrial machine vision sensors requiring stable component supply and long-term design continuity.
Supply support for VSP2272M/2K 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
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets.
The VSP2272M/2K belongs to TI's Vision Signal Processing product line, engineered specifically to integrate CCD analog front-end functions-including CDS, PGA, and 12-bit digitization-into compact, low-power imaging subsystems.
FAQ
What is the operating temperature range for the VSP2272M/2K?
The VSP2272M/2K is specified for operation from −25°C to +85°C. This industrial-grade temperature range supports reliable deployment in consumer digital cameras, outdoor security cameras, and factory-floor machine vision equipment without thermal derating. The device maintains full CDS accuracy, PGA linearity, and ADC performance across this range, as validated in TI's SLES020 datasheet.
Does the VSP2272M/2K require external voltage references or clock sources?
The VSP2272M/2K operates with an external master clock applied to CLKIN but does not require an external voltage reference-the internal bandgap reference ensures stable 12-bit ADC performance. External decoupling capacitors on AVDD and DVDD are mandatory per the datasheet layout guidelines. No external reference IC is needed, simplifying BOM and board space in compact camera modules.
Is the VSP2272M/2K pin-compatible with the VSP2272Y variant?
No, the VSP2272M/2K and VSP2272Y are not pin-compatible. While both use 48-lead packages, the VSP2272M/2K uses a P-VQFN (RGN) package with exposed thermal pad and bottom-side terminals, whereas the VSP2272Y uses an LQFP (PT) package with gull-wing leads. Layout redesign and requalification are required when substituting between these variants.
What serial interface protocol does the VSP2272M/2K support for register configuration?
The VSP2272M/2K supports a 3-wire serial interface (SDATA, SCLK, SEN) compatible with SPI Mode 0 (CPOL = 0, CPHA = 0). It allows read/write access to internal registers controlling PGA gain, clamp timing, CDS mode, and power-down states. No external level-shifting is required when interfacing with 3.3-V microcontrollers or FPGAs.
How does the black level clamping function recover after a PGA gain change in the VSP2272M/2K?
The VSP2272M/2K implements fast black level recovery by dynamically adjusting clamp timing and reference voltage in response to PGA gain updates-ensuring stable black level within one frame period. This behavior is confirmed in the functional description of the SLES020 datasheet and eliminates visible brightness shifts during auto-exposure transitions in DSC and DVC applications.
VSP2272M/2K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Processor
- Applications:
- Consumer Video
- Standards:
- -
- Control Interface:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-VQFN (7x7)
VSP2272M/2K FAQ
1.How can I place an order for VSP2272M/2K through Aetrix?
Please submit a Request for Quotation (RFQ) for VSP2272M/2K 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 VSP2272M/2K reliable?
The price and inventory of VSP2272M/2K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSP2272M/2K is usually 5 days.
3.What payment methods are accepted for VSP2272M/2K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSP2272M/2K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSP2272M/2K?
VSP2272M/2K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSP2272M/2K 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 VSP2272M/2K?
For technical support, including VSP2272M/2K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSP2272M/2K requirements.
6.How does Aetrix verify that VSP2272M/2K is sourced from the original manufacturer or authorized distributors?
All VSP2272M/2K 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 VSP2272M/2K meets industry standards.
7.What is the process for return or replacement of VSP2272M/2K?
All VSP2272M/2K units undergo pre-shipment inspection (PSI). If there is an issue with VSP2272M/2K, 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 VSP2272M/2K part is unused and in its original packaging.
Return procedure for VSP2272M/2K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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