**AD9388ABSTZ-170: A Comprehensive Technical Overview of the 170 MHz HDMI Transmitter**

The **AD9388ABSTZ-170** is a high-performance, monolithic transmitter from Analog Devices designed to convey uncompressed digital video and audio data over a single HDMI (High-Definition Multimedia Interface) link. Optimized for a maximum pixel clock rate of **170 MHz**, this integrated circuit (IC) serves as a critical component in a wide array of digital video systems, from high-end consumer electronics to professional and industrial equipment.

**Core Architecture and Functionality**

At its heart, the AD9388ABSTZ-170 integrates a **digital video input interface**, an **HDMI transmitter** with Transition Minimized Differential Signaling (TMDS) technology, and a flexible **audio input block**. Its primary function is to encode and serialize 24-bit pixel data from a graphics controller or video source into three high-speed TMDS channels, which are then transmitted to an HDMI sink, such as a display or projector.

The device supports a comprehensive range of video formats, including all standard-definition (SD), enhanced-definition (ED), and high-definition (HD) resolutions up to **1080p @ 60 Hz** and **UXGA (1600x1200)**, facilitated by its 170 MHz bandwidth. It is fully compliant with the HDMI 1.3 specification, ensuring robust interoperability with other certified devices.

**Key Technical Features and Advantages**

1. **High-Bandwidth Operation:** The **170 MHz pixel clock** capability is the defining feature of this variant, enabling support for critical high-resolution video formats without compromise. This ensures sharp, high-fidelity image transmission.

2. **Integrated HDCP (High-bandwidth Digital Content Protection):** The transmitter includes an on-chip HDCP cipher engine, providing a secure end-to-end content protection solution. This is essential for playing copyrighted commercial content from Blu-ray players, set-top boxes, and gaming consoles.

3. **Flexible Power Management:** The device features advanced power-saving modes, including a **low-power standby state**, which is crucial for meeting the energy efficiency requirements of modern electronic designs.

4. **Programmable Features:** Engineers can leverage its programmability for key tasks like **color space conversion** (e.g., RGB to YCbCr), control of the HDMI InfoFrame packets, and adjustment of output driver strength to optimize signal integrity across different board layouts and cable lengths.

5. **Robust I²C Control Interface:** The entire configuration of the chip—from video processing to audio packet insertion—is managed through a standard two-wire serial interface (I²C), simplifying system integration and control.

**Typical Application Landscape**

The AD9388ABSTZ-170 is a cornerstone in designs requiring reliable, high-quality digital video output. Its typical applications include:

* **Digital Set-Top Boxes (STBs)** and DVD/Blu-ray Players

* **Personal Computers** and **Laptops** for video-out functionality

* **A/V Receivers** and **Video Switchers**

* **Digital Signage** and **Professional Video Equipment**

**ICGOODFIND**

The AD9388ABSTZ-170 stands as a robust and highly integrated solution for HDMI transmission needs. Its combination of **high bandwidth (170 MHz)**, full feature integration (including HDCP), and power efficiency makes it an excellent choice for designers seeking a reliable, industry-compliant transmitter for a diverse range of video-centric products.

**Keywords:**

1. **HDMI Transmitter**

2. **170 MHz**

3. **HDCP Encryption**

4. **TMDS**

5. **Video Resolution**