TW9990AT-NA1-GR

Overview

The TW9990AT-NA1-GR is an automotive-grade NTSC/PAL/SECAM video decoder manufactured by Renesas Electronics. It converts base-band analog CVBS or S-Video signals into digital 8-bit 4:2:2 YCbCr video output formatted to ITU-R 656 standards. The device features a single-channel architecture with four inputs, utilizing a 32-lead WQFN package measuring 5.0 x 5.0 mm. Power requirements include 1.8V for analog and digital supplies and 3.3V for I/O. Typical power consumption is 110mW for composite input applications. The component supports a single 27MHz crystal for all operations and includes advanced synchronization processing for nonstandard signals.

Feature Summary

• Integrated adaptive 4H comb filter for high-quality Y/C separation
• Advanced synchronization circuitry for stable picture generation
• Vertical Blanking Interval (VBI) signal detection and processing
• Two-wire serial host interface for system integration

Applications

• Automotive rear-view camera systems
• Vehicle infotainment displays
• Digital video monitoring in automotive environments

Procurement Notes

Verify the specific suffix GR against official Renesas documentation to confirm tape-and-reel packaging and AEC-Q100 qualification status. Ensure compatibility with 1.8V analog/digital supply rails and 3.3V I/O levels during design-in. Confirm that the 32-WQFN footprint matches the target PCB layout constraints.

Selection Notes

Select this component when automotive reliability and low power consumption are required for NTSC, PAL, or SECAM decoding. It is suitable for designs needing ITU-R 656 output without external formatting logic. Consider the TW9992 if MIPI-CSI2 output or differential CVBS inputs are necessary instead of single-ended/composite inputs.

Part Context

The TW9990 series serves as a dedicated video decoder solution within Renesas' automotive portfolio. The TW9990AT variant specifically meets automotive quality standards, ensuring robustness in vehicle environments. It complements other Renesas imaging and display controllers by providing standardized digital video output from legacy analog sources.

Replacement Considerations

The TW9992AT-NA1-GE offers MIPI-CSI2 output but lacks SECAM support. Verify pinout compatibility between the TW9990 and potential substitutes, as interface differences may require schematic modifications.