Datasheet > ITD3020

ITD3020

更新时间： 2024-11-20 03:44:39

品牌	Logo	应用领域
亚德诺 - ADI		/
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描述
Low-IF tuner IC for dual-band DAB & FM

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ITD3020 数据手册

Low-IF tuner IC

for dual-band DAB & FM

ITD3020

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

Single chip synthesized tuner for dual-band DAB and FM

receiver

Low-IF single-conversion architecture which eliminates all

SAW filters

Covers whole band-III (174 ~ 245 MHz), L-band (1450 ~ 1592

MHz) and FM (88 ~ 108 MHz)

Operating dynamic range : -102 ~ -10 dBm

Ultra low power consumption: Band-III 100 mW

L-band 160 mW

On-chip regulators for 2.85V single supply

On-chip fast switching fractional-N PLL

On-chip low phase noise and wide frequency range VCO

On-chip bandwidth-adjustable low pass filter

Figure 1.

Integrated IF variable gain amplifier for direct connection to

digital demodulators

Noise/Linearity optimization through internal RF RSSI and

AGC loop

Adjustable take-over point

Ideal for mobile DAB receiver, FM application

I²C serial bus interface

Small 40-QFN package (6 × 6 mm²)

Minimal external components

APPLICATIONS

Dual-band DAB Mobile Phone

FM radio application

Low Power PDA, Mobile Phone

Fully compatible with dual-band DAB and FM

GENERAL DESCRIPTION

The ITD3020 is a highly integrated CMOS single chip low-IF

single-conversion tuner IC for dual-band DAB (Digital audio

broadcasting) and FM. It supports Eureka-147 DAB standard

along with analog FM. It includes 2 LNAs, 2 RF PGAs, 2 image-

rejection down-conversion mixers, a bandwidth adjustable low

pass filter, an IF variable gain amplifier, a VCO and a fractional-

N PLL, etc. On-chip low phase noise VCO along with high

resolution fractional-N frequency synthesizer make in-band

phase noise lower than that of any other conventional tuners.

The ITD3020 also includes several regulators, which make it

possible to use single 2.85 V power supply.

The ITD3020 exhibits ultra low power consumption such as 100

mW. Using small leadless 6 mm × 6 mm 40-LD QFN package,

the ITD3020 is the best solution for highly integrated multi-

tuner system and portable application where low power

consumption is critical. It has an industry standard I²C serial

bus interface. Primary application of the ITD3020 is dual-band

DAB/FM mobile phones and the portable DAB/FM receiver.

PRODUCT HIGHLIGHTS

1. Single chip synthesized tuner for dual-band DAB and FM

receiver

2. Low-IF single-conversion architecture which eliminates all

SAW filters

3. Ultra low power consumption: 100mW

Rev.2.5

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

中文翻译

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