The Lntech SNQ-22581 is an economically focused camera module designed to provide a significant image quality upgrade for legacy analog surveillance systems. Based on a compact 25mm x 25mm double-layer PCB, it utilizes a Sony IMX225 STARVIS™ CMOS sensor to achieve starlight-level low-light performance. Its output is a high-quality CVBS analog signal, processed to achieve a high 1000TVL resolution from its native 720P sensor. This module is designed for OEMs and integrators who require a reliable, high-value imaging core for analog systems, DIY security projects, or any application where cost is a primary driver but low-light performance cannot be compromised.

1. Performance-Optimized Component Selection
The SNQ-22581 is designed around a value-engineering principle:

• Sensor Choice: The Sony IMX225 is selected for its proven ability to deliver excellent low-light sensitivity (0.00008 Lux) at a competitive price point, making it an industry standard for budget-conscious starlight applications.

• Output Limitation: By focusing solely on CVBS output, the design avoids the cost and complexity of digital output processors and connectors, passing the savings on while fully serving the analog market.

2. Image Quality Optimization for Analog
The module is tuned to maximize the effective resolution of the analog output:

• 1000TVL Resolution: The processing pipeline is optimized to extract the maximum possible detail from the 720P sensor and deliver it within the CVBS signal, achieving a measured 1000 television lines.

• Feature Set: It retains crucial image adjustment features such as WDR (BLC/HLC) for challenging lighting, DNR for cleaner low-light images, and One-Push WB for quick color calibration.

3. Compact and Efficient Design

• 25x25mm Size: This small form factor allows for integration into a wide variety of compact housings.

• Double-Layer PCB: A simple two-layer board keeps costs minimal while providing reliable performance.

• Low Power Consumption: At < 0.96W, the module is highly power-efficient, reducing heat generation and overall system power requirements.

4. Target Application and Use Case
This module is not for new digital installations. It is specifically engineered for:

• Analog System Upgrades: Directly replacing older, lower-resolution camera boards in existing analog systems for an instant quality boost.

• Cost-Sensitive OEM Products: Serving as the core for new analog cameras where the final product price is a key market competitive factor.

• DIY and Niche Applications: Providing a high-quality, low-cost imaging solution for hobbyists and specialized applications.