Datasheet > TDA18253HN/C1,551

TDA18253HN/C1,551

更新时间： 2024-01-20 13:44:25

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
6页	67K
描述
TDA18253HN_SDS - Cable Silicon Tuner QFN 48-Pin

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TDA18253HN/C1,551 技术参数

生命周期：	Active	零件包装代码：	QFN
针数：	48	Reach Compliance Code：	compliant
风险等级：	5.58	Is Samacsys：	N
Base Number Matches：	1

TDA18253HN/C1,551 数据手册

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TDA18253HN

Cable Silicon Tuner

Rev. 3 — 10 September 2010

Product data sheet

1. General description

The TDA18253HN is a Silicon Tuner IC designed specifically for high definition multi-tuner

cable Set-Top Boxes (STBs) supporting single streaming and multi-streaming PVR STBs

with watch, record, video-on-demand and in-home video distribution capability.

Used in conjunction with the TDA10024HN (digital channel demodulator), the

TDA18253HN covers all worldwide digital cable standards.

• The TDA18253HN ensures a low system cost as:

– Costly components such as low-noise amplifiers, Surface Acoustic Wave (SAW)

filters and incremental crystal oscillators are eliminated from the system BOM

• The TDA18253HN high-performance Silicon Tuner meets today’s digital cable TV

reception needs with:

– Same level of performance for master and slave tuners

– Low power consumption

– High linearity

– Low noise figure

• The TDA18253HN ensures ease of use with:

– Easy on-board integration

– Efficient and effective PCB design

– Reduced external components

2. Features and benefits

 Single 3.3 V power supply

 Low power consumption

 Extended frequency coverage up to 1002 MHz

 Digital cable reception for STB

 Supports 4 tuner functions for PVR boxes:

 1  low IF output

 3  RF outputs to drive slave tuners

 RF loop-through

 Fully integrated IF selectivity; eliminating the need for external SAW filters

 Alignment free

 Fully integrated oscillators with no external component

 Integrated wideband gain control

 Crystal oscillator output buffer (16 MHz) for single crystal applications

12 3 4 5 6

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