Datasheet > QHX220ICT7

QHX220ICT7

更新时间： 2024-01-03 05:20:08

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电信集成电路
页数	文件大小	规格书
19页	1362K
描述
Active Isolation Enhancer and Interference Canceller

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技术参数
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QHX220ICT7 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
零件包装代码：	BGA	包装说明：	BGA,
针数：	9	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	风险等级：	5.66
Is Samacsys：	N	JESD-30 代码：	S-PBGA-B9
长度：	1 mm	功能数量：	1
端子数量：	9	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	BGA	封装形状：	SQUARE
封装形式：	GRID ARRAY	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	标称供电电压：	1.8 V
表面贴装：	YES	电信集成电路类型：	TELECOM CIRCUIT
温度等级：	INDUSTRIAL	端子形式：	BALL
端子位置：	BOTTOM	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	1 mm	Base Number Matches：	1

QHX220ICT7 数据手册

Active Isolation Enhancer and Interference Canceller

QHx220

Electromagnetic Interference (EMI) is emerging as a

major concern in next generation wireless

Features

• Protocol agnostic. Designed for: GSM, CDMA, DVB-H,

ISDB-T, DMB

communication systems. As wireless terminals now

support multiple services and features that utilize high

data rates simultaneously, removing interference within

wireless terminals like handsets has become a challenge.

• Frequency Range 300MHz to 3GHz

• Integrated, programmable LNA gain stages in the

sampler path

• SPI bus controlled integrated DACs

• >20dB Noise Cancellation is possible

• 50dB typical Dynamic Range

Reducing the Electromagnetic Interference recovers

the receiver sensitivity, enabling simultaneous

operation of multiple radios, and improves the overall

quality of service of communication devices. Intersil’s

QHx220 is situated in a handset to sample the source

of the noise and emulate the RF coupling channel

between the noise source and victim receiver antenna.

In doing so, an anti-noise signal can be applied directly

to the victim receive path to cancel the EMI and

achieve the signal integrity benefits. This approach

makes it possible to cancel both in-band (within the

victim Rx band) or out-of-band aggressors. This is a

revolutionary approach since it is only possible to

cancel out of band noise using conventional Rx filters.

• Low Power Consumption (<20mW typical, ~2µW

standby)

• Ultra Small ~ 1mm devices are available as tested

bumped die or 3x3mm QFN package

Applications

• Most any wireless device with a local aggressor:

- Cell phones

- Mobile TV devices

- Laptop Computers

In addition QHx220 may be used to increase the

inherent isolation between antennas or inside duplexers

and switches, thus allowing to increase the transmit

power in repeaters or yielding higher sensitivity in the

receivers. Both measures finally resulting in a better

coverage, larger cell size, smaller antennas or lower

power of infrastructure components such as

- GPS terminals

- Pico- and Femtocells

• Improved Tx to Rx Isolation of devices (i.e. duplexer,

switches) or between neighboring antennae

• Basestations

basestations, pico-and Femtocells as well as repeaters.

• Linearization of PAs

The QHx220 integrates the sampler path LNA gain stages

as well as the DACs required to control the I and Q

control voltages (used to set the magnitude and phase of

the cancellation signal). Both the gain, and control

voltages are programmable using a SPI bus interface.

Typical Application Circuit

Benefits

• Actively cancels unwanted local RF noise

• Improves BER, receiver sensitivity, C/N by canceling

noise generated from local aggressors

• Improves isolation between adjacent antennas

• Can be used to cancel in-band or out-of-band

interferers (i.e. spurs, harmonics, phase noise, or

other noise sources like IM products generated in a

PA)

• Enables simultaneous operation of multiple

co-located radios

• Improves overall quality of service

FIGURE 1. ACTIVE ISOLATION ENHANCER AND NOISE

CANCELLER

October 20, 2009

FN6986.0

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

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