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SM5320A Datasheet(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM5320A Datasheet(HTML) 1 Page - Nippon Precision Circuits Inc |
1 / 23 page SM5320A SEIKO NPC CORPORATION —1 5-channel Video Buffer with Built-in wideband LPF OVERVIEW The SM5320A is a 5-channel video buffer with built-in 5th-order lowpass filters. The HD block lowpass filter cutoff frequency range can adjust from 4.10MHz to 42.7MHz*1 by 256 steps. The lowpass filter 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 filter. For video output systems, the filter reduces video DAC aliasing and external noise and can drive up to 300 Ω 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 1.8kΩ. *2. I2C-BUS is a registered trademark of NXP B.V. FEATURES I Supply voltages • Analog: 4.75 to 5.25V • Digital: 3.0 to 5.5V I Lowpass filter with adjustable cutoff frequency (256 steps) (CH-1 to CH-3) • Cutoff frequency range: 4.10MHz to 42.7MHz (RISET = 1.8kΩ) I Filter bypass mode function for display specifica- tions up to SXGA resolution (CH-1 to CH-3) • Passband: 80MHz (typ) I Half fc mode switch function suitable for compo- nent signals (CH-2, CH-3) I Video input pins can be independently set to sync- tip clamp/bias inputs (CH-1 to CH-3) I Filter passband ( ± 1.5dB): 6MHz (CH-Y/C) I Up to 300 Ω terminating resistance drive capability I Output gain: 0dB ± 2.1dB (max step: 0.15dB) I Power-down function • ≤ 500µA current consumption when power-down I I2C-BUS interface control • Slave address: 48h, 49h, or 4Ah (up to three devices can be used simultaneously, selected by ADS input) • Data transfer rate: Fast mode (up to 400kbit/s) I Operating ambient temperature range: 0 to 70 °C I Package: 28-pin VSOP APPLICATIONS I HDTVs I LCD TVs I PDPs I Projectors ORDERING INFORMATION PINOUT (Top view) PACKAGE DIMENSIONS (Unit: mm) Device Package SM5320AV 28-pin VSOP 1 15 14 28 CIN YIN VCC4 VDD SDA SCL GND6 VCC5 NC ISET GND1 IN3 IN2 IN1 ADS REF GND2 OUT1 VCC1 OUT2 GND3 OUT3 VCC2 GND4 YOUT VCC3 COUT GND5 0.675TYP 9.8 ± 0.2 0.22 - 0.05 + 0.1 0.12 M 0.10 0.15 − 0.05 + 0.1 0.65 0 to 10 ° |
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Similar Description - SM5320A |
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