器件名称:
SM5320A
功能描述:
5-channel Video Buffer with Built-in wideband LPF
文件大小:
696.18KB 共23页
简 介:
SM5320A 5-channel Video Buffer with Built-in wideband LPF OVERVIEW The SM5320A is a 5-channel video buffer with built-in 5th-order lowpass lters. The HD block lowpass lter cutoff frequency range can adjust from 4.10MHz to 42.7MHz*1 by 256 steps. The lowpass lter supports 480i to 1080i format, video signal equipment analog input/outputs. For video input systems, the device functions as a next-stage ADC system anti-aliasing lter. For video output systems, the lter reduces video DAC aliasing and external noise and can drive up to 300 terminating resistance. The cutoff frequency and signal input type can be controlled using an I2C-BUS*2, and the I2C slave address can be set by ADS (3-state input) to allow up to three SM5320A on the same bus. The output gain can be varied in the range of 0dB ± 2.1dB (max step: 0.15dB) for each Y/C block and HD block individually using the I2C-BUS. *1. When the resistor connected to ISET (RISET) is 1.8k. *2. I2C-BUS is a registered trademark of NXP B.V. FEATURES I PINOUT (Top view) CIN YIN VCC4 VDD SDA SCL GND6 VCC5 NC ISET GND1 IN3 IN2 IN1 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 adjustable cutoff frequency (256 steps) (CH-1 to CH-3) Cutoff frequency range: 4.10MHz to 42.7MHz (RISET = 1.8k) Filter bypass mode function for display specications up to SXGA resolution (CH-1 to CH-3) Passband: 80MHz (typ) Half fc mode switch function suitable for component signals (CH-2, CH-3) Video ……
