TDA8270AHN/C1 NXP Semiconductors, TDA8270AHN/C1 Datasheet

TDA8270AHN/C1

Manufacturer Part Number

TDA8270AHN/C1

Description

Tuners SILICON TUNER

Manufacturer

NXP Semiconductors

Datasheet

1.TDA8270AHNC1.pdf (2 pages)

Specifications of TDA8270AHN/C1

Bus Type

I2C

Mounting Style

SMD/SMT

Package / Case

HVQFN-40

Function

Operating Supply Voltage

3.3 V

Minimum Operating Temperature

- 40 C

Maximum Operating Temperature

+ 85 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

TDA8270AHN/C1,557

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Based on a revolutionary concept, the TDA827x single-chip tuner

family simplifies the design of cable receivers, freeing engineers from

many of the constraints of traditional tuner design.

Supporting DOCSIS, EURODOCSIS, DVB-C and OpenCable, these

PAL/NTSC-compliant ICs meet the requirements of all cable modem

and analog/digital TV solutions.

Applications

• Cable modem

• Set-top box

• Cable analog TV

• Cable digital TV

• VoIP

• Cable broadband internet

• Out-of-band tuner

• PC-TV add-on cards

• PDA

Key features

• Single-chip 3.3 V cable tuner

• Single supply voltage

• Low power consumption

• Supports all world Cable standards

• PAL/NTSC compliant

• RF splitter for loop-through and out-of-band functions

• Combination of wideband and in-band automatic gain control

• Symmetrical IF output for direct connection to channel decoder

• Fully integrated oscillators with no external components

• Fully integrated selectivity

• Crystal oscillator output buffer to drive channel decoder

• I

• Operating range from –40°C to +85°C for outdoor applications

• Integrated IF amplifier

microcontrollers

C bus protocol compatible with 1.8 V, 2.5 V, 3.3 V and 5 V

TDA827x cable silicon tuner IC

Single-chip 3.3 V silicon tuner IC

Based on Philips Semiconductors' new 'Silicon Tuner' concept, the

TDA827x family simplifies front-end designs for mainstream cable

reception. It supports all world cable standards and is ideal for

cable broadcast applications including both analog and digital TV,

as well as cable modems in high speed internet devices. Delivering

efficient, robust performance the TDA827x family uses a specific

proprietary architecture to convert RF inputs into low IF signals

for channel decoding. Patented technology and a highly innovative

architecture has enabled a reduction in external components

resulting in an extremely cost effective tuner solution.

The input signal is amplified in the on-chip low noise amplifier

(also used as splitter) before being filtered and passed to the image

rejection mixer, where the RF signal is downconverted to a low IF

signal which is then filtered again (on-chip channel selectivity)

before being delivered to the channel decoder. Through an optimal

partitioning of functionalities within the system, there is NO need

for external SAW filters and IF amplifier to ensure selectivity.

The VCO is also fully integrated, with no external tank

component; and does not need a high voltage to tune the oscillator.

Programming the TDA827x is accomplished via an I

Revolutionizing tuner design

Revolutionizing the design and implementation of front-ends in

consumer equipment, the single tuner IC concept can be used in

many broadcast areas. Dedicated to cable broadcast and cable

modem applications, the TDA827x is the first in a series of silicon

tuner devices aimed at addressing all consumer markets.

This provides a 'one application for all' solution that removes the

need for expensive system development usually required to match

RF front-ends to specific platforms or applications.

The TDA8270 silicon tuner (6MHz, digital only for cable modems)

will be followed by the TDA8271 (multi-standard, digital only for

cable STB) and the TDA8272 (multi-standard, NTSC/PAL

compliant for cable STB).

C bus.

Related parts for TDA8270AHN/C1

TDA8270AHN/C1 Summary of contents

Page 1

Based on a revolutionary concept, the TDA827x single-chip tuner family simplifies the design of cable receivers, freeing engineers from many of the constraints of traditional tuner design. Supporting DOCSIS, EURODOCSIS, DVB-C and OpenCable, these PAL/NTSC-compliant ICs meet the requirements of ...

Page 2

TDA827x cable silicon tuner WIDEBAND from diplexer AGC LT OOB The Netherlands IMAGE RF REJECTION FILTER SELECTIVITY MIXER VCO AND PLL XTAL out April 2002 IF IF AGC low IF out AGC MSD856 ...

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