本文介紹了THS7364功能方框圖,多種應(yīng)用電路圖以及THS7364EVM評估板主要特性,電路圖,材料清單和PCB布局圖.

THS7364是TI 公司的采用SiGe BiCom3X工藝的六路低功耗HD(SD)視頻緩沖器,集成了三個(gè)SDTV濾波器(9.5-MHz)和三個(gè)全HD的HDTV濾波器(72-MHz),所有濾波器具有可旁通的6階Butterworth特性, 內(nèi)置增益6-dB (2 V/V) ,單電源+2.7V 到+5V工作,主要用在STB,PVR/DVDR和BluRay輸出視頻緩沖器.

THS7364應(yīng)用:

Set Top Box Output Video Buffering

PVR/DVDR Output Buffering

BluRay? Output Video Buffer


圖1.THS7364功能方框圖

圖2.THS7364單電源DC輸入/DC輸出耦合視頻線路驅(qū)動(dòng)器

圖3.THS7364典型的6路系統(tǒng):DC耦合編碼器/DAC輸入/,DC耦合線路驅(qū)動(dòng)

圖4.THS7364典型的6路系統(tǒng):DC耦合線路驅(qū)動(dòng),每路兩個(gè)輸出

圖5.THS7364典型AC輸入系統(tǒng)驅(qū)動(dòng)AC耦合視頻線路

THS7364EVM評估板

The THS7364EVM is an evaluation module for the THS7364 in the PW (20-lead TSSOP) package. The THS7364EVM is designed to quickly and easily demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured with a 75 ohm input and output termination. The THS7364 evaluation module (EVM) User’s Guide is included within the Product Datasheet.

THS7364EVM評估板主要特性:

Configured with 75 ohms input/output impedance

Single Supply: 2.7V to 5V Decoupling capacitors

Connectors: Vs+, GND, INPUT, OUTPUT and test points

Input and output connectors support both BNC and RCA/S-video connections

Four Jumpers allow device configuration for SD-disable, FHD-Disable, SD-bypass, FHD-bypass


圖6.THS7364EVM評估板電路圖

THS7364EVM評估板材料清單(BOM):


圖7.THS7364EVM PCB頂層布局圖