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TDA18250HN

NXP Semiconductors
Part Number TDA18250HN
Manufacturer NXP Semiconductors
Description Cable Silicon Tuner
Published Oct 23, 2010
Detailed Description TDA18250HN Cable Silicon Tuner Rev. 6 — 22 December 2011 Product short data sheet 1. General description The TDA18250 ...
Datasheet PDF File TDA18250HN PDF File

TDA18250HN
TDA18250HN

Overview
TDA18250HN Cable Silicon Tuner Rev.
6 — 22 December 2011 Product short data sheet 1.
General description The TDA18250 is a silicon tuner IC designed specifically for high definition cable Set-Top Boxes (STB) supporting single streaming.
Used in conjunction with a digital channel demodulator, the TDA18250 covers all worldwide digital cable standards.
• The TDA18250 ensures a low system cost as: – Costly components such as low-noise amplifiers, Surface Acoustic Wave (SAW) filters are eliminated from the system BOM • The TDA18250 high-performance silicon tuner meets today’s digital cable TV reception needs with: – Low power consumption – High linearity – Low noise figure • The TDA18250 ensures ease of use with: – Easy on-board integration – Efficient and effective PCB design – Reduced external components 2.
Features and benefits  RF frequency coverage up to 1002 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 NXP Semiconductors TDA18250HN Cable Silicon Tuner  I2C-bus provides:  3.
3 V microcontroller compatibility  Received Signal Strength Indicator (RSSI) data access  Die temperature sensor data access  Lead-free (Pb) manufacturing 3.
Quick reference data Table 1.
Symbol fRF Pi(max) NFtun n P image Quick reference data Parameter Conditions RF frequency edge maximum input power tuner noise figure maximum gain fRF from 42 MHz to 862 MHz phase noise fRF > 862 MHz worst case in the RF frequency r...


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