Renesas TW9920-BC1-GR

Overview

TW9920-BC1-GR from Intersil is a multistandard analog video decoder and encoder IC designed for embedded multimedia systems. It supports NTSC/PAL/SECAM decoding with 4H comb filtering, converts CVBS/S-Video to ITU-R 601/656 YCbCr(4:2:2), and encodes digital YCbCr back to analog CVBS or S-Video. Typical power consumption is 0.62W at 2.5/3.3V supply.

For engineers reviewing the TW9920-BC1-GR datasheet, TW9920-BC1-GR pinout, TW9920-BC1-GR application, or TW9920-BC1-GR equivalent, key selection considerations include multistandard auto-detection, integrated 4H comb filter performance, VBI slicer capability, dual-direction YCbCr interface compliance, and VFBGA-80 package constraints.

Technical Context

The TW9920-BC1-GR integrates independent decoder and encoder signal chains sharing a single 27MHz crystal reference. Its decoder employs dual 9-bit ADCs with analog clamping, digital horizontal PLL for pixel sampling, and adaptive 4H comb filter for Y/C separation - enabling robust NTSC/PAL/SECAM handling under weak or nonstandard sync conditions.

The encoder uses five 10-bit DACs operating at 27MHz to simultaneously generate CVBS, Y/C, and YCbCr outputs. It includes luminance/chrominance filtering, field-locked audio clock generation, and supports ITU-R 656 input timing - all while maintaining sub-1/32-pixel horizontal phase accuracy during scaling.

Key Specifications

Pinout & Package

VFBGA-80 package (5mm × 5mm, 0.5mm pitch), ball-grid array with defined power, ground, analog input, digital I/O, and crystal connections.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog video decoder/encoder applications.

Compared with ADV7180BCPZ and THS8200IPFP, the TW9920-BC1-GR uniquely combines full multistandard decode + encode in one VFBGA-80 package, enabling bidirectional analog/digital video bridging without external buffering or dual-chip layout complexity.

Availability

TW9920-BC1-GR is available at Aetrix Electronics and suitable for automotive rear-view camera systems, industrial DVRs, medical endoscopy displays, and broadcast equipment upgrades requiring stable component supply and long-term manufacturability.

Supply support for TW9920-BC1-GR 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

Intersil Corporation, now part of Renesas Electronics, designs high-performance analog and mixed-signal ICs for power management, precision analog, and video infrastructure applications.

The TW9920-BC1-GR belongs to Intersil's legacy video processing product line, engineered specifically for cost-sensitive, space-constrained embedded systems needing seamless analog-to-digital and digital-to-analog video translation.

FAQ

What video standards does the TW9920-BC1-GR support?

The TW9920-BC1-GR supports NTSC (M, 4.43), PAL (B, D, G, H, I, M, N, N-comb), PAL(60), and SECAM with automatic format detection. It uses digital PLLs and adaptive filtering to maintain accurate color decoding and synchronization across all standards without manual intervention. The TW9920-BC1-GR achieves this using a single 27MHz crystal and integrated subcarrier generation circuitry.

Does the TW9920-BC1-GR include both decoder and encoder functionality?

Yes, the TW9920-BC1-GR integrates a full multistandard analog video decoder and a high-fidelity digital video encoder in a single IC. It decodes CVBS or S-Video into ITU-R 601/656 YCbCr(4:2:2), and encodes digital YCbCr back to CVBS or S-Video using five 10-bit DACs. This dual functionality eliminates the need for separate decoder and encoder chips in bidirectional video systems like the TW9920-BC1-GR.

What is the package type and pin count of the TW9920-BC1-GR?

The TW9920-BC1-GR uses a VFBGA-80 package measuring 5mm × 5mm with 0.5mm ball pitch. It contains 80 solder balls arranged in a grid, including dedicated analog power/ground, digital I/O, video input/output, and crystal interface connections. The TW9920-BC1-GR's VFBGA footprint requires controlled-depth reflow and microvia PCB design for reliable assembly.

Can the TW9920-BC1-GR handle VBI data extraction?

Yes, the TW9920-BC1-GR includes an integrated VBI slicer supporting closed captioning, teletext, and industrial data services. It allows raw ADC data pass-through for Intercast™ compatibility and enables direct extraction of timing-critical metadata without external processors. This VBI capability is fully functional across all supported standards and is configurable via the TW9920-BC1-GR's I²C interface.

What power supply requirements does the TW9920-BC1-GR have?

The TW9920-BC1-GR operates from separate 2.5V or 3.3V analog (AVDD) and digital (DVDD) supplies, with 3V-tolerant I/O. Its typical power consumption is 0.62W under full operation. Decoupling capacitors must be placed near AVDD/AVSS and DVDD/DVSS pins to maintain signal integrity. The TW9920-BC1-GR's low-power architecture supports fanless thermal design in compact enclosures.