代理产线

TDA18250HN

 2013-12-11

【基本数据】

【产品特性】

• RF frequency coverage up to 862 MHz
• Integrated wideband gain control
• LOW IF (LIF) output
• Single 3.3 V power supply
• Low power consumption
• Multistandard cable receptions
• Fully integrated IF selectivity, eliminating the need for external SAW filters
• RF Loop-Through (LT)
• Enhanced RF and IF filters to increase selectivity and adjacent channels filtering
• Alignment free
• Fully integrated oscillators:
• No external oscillator components for reduced cost
• 16 MHz crystal oscillator output buffer for single crystal applications
• Supports 2 tuner functions specifically aimed for PVR boxes:
• 1 × RF output to drive slave tuner


• Silicon Tuner,designed specifically for high definition cable Set-Top Boxes (STB) supporting single streaming
• Used in conjunction with the TDA10024HN (digital channel demodulator),
• cover all worldwide digital cable standards


【产品应用】

有线数字电视机顶盒

【文字介绍】

TDA18250HN是一个硅调谐器件,体积小,易于放置于电路板,占用空间小,外围电路简单,使用更方便灵活。支持现有的所有有线数字电视标准。需与TDA10024HN数字电视信道解调器配套使用,直接输出一个中频信号给TDA10024HN,不需要SAW滤波器。内含增益控制器。通过I2C总线与外部控制器相通信实现相关控制。可应用于有线数字电视机顶盒。