tda18254ahn NXP Semiconductors, tda18254ahn Datasheet

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tda18254ahn

Manufacturer Part Number
tda18254ahn
Description
Cable Silicon Tuner
Manufacturer
NXP Semiconductors
Datasheet
1. General description
2. Features and benefits
The TDA18254AHN is a Silicon Tuner IC designed specifically for high definition
multi-tuner cable Set Top Boxes (STB) 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
TDA18254AHN covers all worldwide digital cable standards.
TDA18254AHN
Cable Silicon Tuner
Rev. 3 — 13 September 2010
Supports 4 tuner functions specifically aimed for PVR boxes:
Integrated wideband gain control
Extended frequency coverage up to 1002 MHz
Integrated RF tracking filters for rejection of unwanted signals
Single 3.3 V power supply
Low power consumption
Multistandard cable receptions
Enhanced RF and IF filters to increase selectivity and adjacent channels filtering
RF loop-through
Fully integrated IF selectivity, eliminating the need for external SAW filters
Alignment free
The TDA18254AHN ensures a low system cost as:
– Costly components such as low-noise amplifiers, Surface Acoustic Wave (SAW)
The TDA18254AHN 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 TDA18254AHN ensures ease of use with:
– Easy on-board integration
– Efficient and effective PCB design
– Reduced external components
1  low IF output
3  RF outputs to drive slave tuners
filters are eliminated from the system BOM
Product data sheet

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tda18254ahn Summary of contents

Page 1

... Cable Silicon Tuner Rev. 3 — 13 September 2010 1. General description The TDA18254AHN is a Silicon Tuner IC designed specifically for high definition multi-tuner cable Set Top Boxes (STB) supporting single streaming and multi-streaming PVR STBs with watch, record, video-on-demand and in-home video distribution capability. ...

Page 2

... RF NF tun   image 4. Ordering information Table 2. Type number TDA18254AHN/C1 HVQFN48 plastic thermal enhanced very thin quad flat package; TDA18254AHN_SDS Product data sheet Quick reference data Parameter Conditions RF frequency edge tuner noise figure maximum gain phase noise worst case in the RF ...

Page 3

... Automatic Gain Control Bill Of Materials Field-Induced Charged-Device Model Integrated Circuit Identity All information provided in this document is subject to legal disclaimers. Rev. 3 — 13 September 2010 TDA18254AHN IF IF SELECTIVITY AGC 31 mixer 30 32 TDA18254AHN 19 CRYSTAL 20 OSCILLATOR 16 17 XTAL_P XTAL_N 001aal335 Min 0.3 0.3 < 3.3 V 0.3 > 3.3 V  ...

Page 4

... RSSI SAW SCL SDA STB XTAL 8. Revision history Table 5. Revision history Document ID Release date [1] TDA18254AHN_SDS v.3 20100913 [1] Revisions 1 and 2 are not available. TDA18254AHN_SDS Product data sheet Abbreviations …continued Description Intermediate Frequency Joint Electron Device Engineering Council Printed Circuit Board Personal Video Recorder ...

Page 5

... Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities. All information provided in this document is subject to legal disclaimers. Rev. 3 — 13 September 2010 TDA18254AHN Cable Silicon Tuner © NXP B.V. 2010. All rights reserved ...

Page 6

... I C-bus — logo is a trademark of NXP B.V. Silicon Tuner — trademark of NXP B.V. http://www.nxp.com salesaddresses@nxp.com All information provided in this document is subject to legal disclaimers. Rev. 3 — 13 September 2010 TDA18254AHN Cable Silicon Tuner Trademarks © NXP B.V. 2010. All rights reserved ...

Page 7

... Ordering information . . . . . . . . . . . . . . . . . . . . .2 Table 3. Limiting values . . . . . . . . . . . . . . . . . . . . . . . . . .3 12. Figures Fig 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 TDA18254AHN_SDS Product data sheet Table 4. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Table 5. Revision history . . . . . . . . . . . . . . . . . . . . . . . . . 4 All information provided in this document is subject to legal disclaimers. Rev. 3 — 13 September 2010 TDA18254AHN Cable Silicon Tuner © NXP B.V. 2010. All rights reserved ...

Page 8

... Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2010. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Document identifier: TDA18254AHN_SDS Cable Silicon Tuner All rights reserved. Date of release: 13 September 2010 ...

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