器件名称:
SM5302A
功能描述:
3-channel Video Buffer with Built-in wideband LPF
文件大小:
503.91KB 共26页
简 介:
SM5302A 3-channel Video Buffer with Built-in wideband LPF OVERVIEW The SM5302A is a 3-channel video buffer with built-in 5th-order lowpass lters. The lowpass lter cutoff frequency range can be linearly controlled from 4.8MHz to 43MHz*1. The lowpass lter supports 480i to 1080i format, video signal equipment analog input/outputs. For video input systems, the device functions as a nextstage ADC system anti-aliasing lter. For video output systems, the lter removes video DAC aliasing and external noise and can drive a maximum of two 75 terminated loads. The cutoff frequency, signal input type, and output gain switching can be controlled using an I2C*2 control bus, and the I2C slave address can be set by ADS (3-state input) to allow a maximum of three devices to be used simultaneously. *1. When the resistor connected to ISET (RISET) is 1.8k. *2. I2C BUS is a registered trademark of Philips Electronics N.V. FEATURES I PINOUT (Top view) I I I I I I I I I I I I Supply voltages Analog: 4.75 to 5.25V Digital: 3.0 to 5.5V Lowpass lter with linearly adjustable cutoff frequency (256 values) Cutoff frequency range: 4.8MHz to 43MHz (RISET = 1.8k) Filter bypass mode function for display specications up to SXGA resolution Passband: 80MHz (typ) Half fc mode switch function (CH-2, CH-3) suitable for digital component signals 2-system input multiplexer function (switchable using I2C or MUXSEL input) Video input pins can be independently set to synctip clamp/bias/direct inputs Maximum ……
