Datasheet > LMH6522SQE

LMH6522SQE

更新时间： 2024-02-27 06:33:32

品牌	Logo	应用领域
美国国家半导体 - NSC		蜂窝电信电信集成电路
页数	文件大小	规格书
28页	767K
描述
IC TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC54, 10 X 5.50 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, LLP-54, Cellular Telephone Circuit

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LMH6522SQE 技术参数

生命周期：	Transferred	包装说明：	HVQCCN,
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.31	JESD-30 代码：	R-XQCC-N54
长度：	10 mm	功能数量：	1
端子数量：	54	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装形状：	RECTANGULAR
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	认证状态：	Not Qualified
座面最大高度：	0.8 mm	标称供电电压：	5 V
表面贴装：	YES	电信集成电路类型：	RF AND BASEBAND CIRCUIT
温度等级：	INDUSTRIAL	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
宽度：	5.5 mm	Base Number Matches：	1

LMH6522SQE 数据手册

July 29, 2011

LMH6522

High Performance Quad DVGA

General Description

Features

The LMH6522 contains four, high performance, digitally con-

trolled variable gain amplifiers (DVGA). It has been designed

for use in narrowband and broadband IF sampling applica-

tions. Typically, the LMH6522 drives a high performance ADC

in a broad range of mixed signal and digital communication

applications such as mobile radio and cellular base stations

where automatic gain control (AGC) is required to increase

system dynamic range.

OIP3: 49dBm @ 200MHz

■

Noise Figure: 8.5dB

Voltage Gain: 26dB

1dB Gain Steps

−3dB bandwidth of 1400 MHz

Gain Step Accuracy: 0.2 dB

Disable function for each channel

Each channel of LMH6522 has an independent, digitally con-

trolled attenuator and a high linearity, differential output, am-

plifier. All circuitry has been optimized for low distortion and

maximum system design flexibility. Power consumption is

managed by a three-state enable pin. Individual channels can

be disabled or placed into a Low Power Mode or a higher

performance, High Power Mode.

Parallel and Serial gain control

Low Power Mode for power management flexibility

Small footprint LLP package

■

Applications

Cellular base stations

■

The LMH6522 digitally controlled attenuator provides precise

1dB gain steps over a 31dB range. The digital attenuator can

be controlled by either a SPI™ Serial bus or a high speed

parallel bus.

Wideband and narrowband IF sampling receivers

Wideband direct conversion

ADC Driver

The output amplifier has a differential output, allowing large

signal swings on a single 5V supply. The low impedance out-

put provides maximum flexibility when driving a wide range

filter designs or analog to digital converters. For applications

which have very large changes in signal level LMH6522 can

support up to 62dB of gain range by cascading channels.

The LMH6522 operates over the industrial temperature range

of −40°C to +85°C. The LMH6522 is available in a 54-Pin,

thermally enhanced, LLP package.

Performance Curve

OIP3 vs Filter Input Resistance

f = 200 MHz

= 2V

PPD

OUT

@ filter input

100

150

200

250

300

FILTER INPUT RESISTANCE (Ω)

30127381

SPI™ is a trademark of Motorola, Inc.

301273

www.national.com

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