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SM5309A データシート(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM5309A データシート(HTML) 1 Page - Nippon Precision Circuits Inc |
1 / 24 page SM5309A SEIKO NPC CORPORATION —1 3-channel Video Buffer with Built-in wideband LPF OVERVIEW The SM5309A is a 3-channel video buffer with built-in 5th-order lowpass filters. The lowpass filter cutoff fre- quency range can adjust from 4MHz to 40MHz*1 by 256 steps. The lowpass filter supports 480i to 1080i for- mat, 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 load 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 SM5309A on the same 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 •I2C-BUS interface: 3.0 to 5.5V I Lowpass filter with adjustable cutoff frequency (256 steps) • Cutoff frequency range: 4MHz to 40MHz (RISET = 1.8kΩ) I Filter bypass mode function for display specifica- tions up to SXGA resolution • Passband: 80MHz (typ) I Half fc mode switch function (CH-2, CH-3) suit- able for component signals I 2-system input multiplexer function (switchable using I2C-BUS or MUXSEL input) I Video input pins can be independently set to sync- tip clamp/bias/direct inputs I Up to 300 Ω load resistance drive capability I Output gain: 0dB I Power-down function • ≤ 1mA current consumption when power-down I I2C-BUS interface control • Slave address: 90h, 92h, or 94h (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: 24-pin VSOP APPLICATIONS I HDTVs I LCD TVs I PDPs I Projectors ORDERING INFORMATION PINOUT (Top view) PACKAGE DIMENSIONS (Unit: mm) Device Package SM5309AV 24-pin VSOP 1 24 IN1A IN1B GND ISET NC IN2A IN2B VCC IN3A IN3B MUXSEL SCL SDA VDD GND OUT3 VCC OUT2 GND OUT1 VCC REF2 REF1 ADS 13 12 0 to 10 7.9 ± 0.2 0.65 0.22 − 0.05 + 0.1 0.12 M 0.10 0.15 − 0.05 + 0.1 |
同様の部品番号 - SM5309A |
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同様の説明 - SM5309A |
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