Datasheet > AD6643BCPZ-200

AD6643BCPZ-200

更新时间： 2024-02-14 17:01:26

品牌	Logo	应用领域
亚德诺 - ADI		接收机
页数	文件大小	规格书
36页	1331K
描述
Dual IF Receiver 1.8 V supply voltages Internal ADC voltage reference

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AD6643BCPZ-200 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	HVQCCN, LCC64,.35SQ,20	针数：	64
Reach Compliance Code：	compliant	ECCN代码：	5A991.B
HTS代码：	8542.39.00.01	风险等级：	2.14
JESD-30 代码：	S-XQCC-N64	JESD-609代码：	e3
长度：	9 mm	湿度敏感等级：	3
功能数量：	2	端子数量：	64
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
封装等效代码：	LCC64,.35SQ,20	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	260
电源：	1.8 V	认证状态：	Not Qualified
座面最大高度：	1 mm	子类别：	Other Telecom ICs
最大压摆率：	0.26 mA	标称供电电压：	1.8 V
表面贴装：	YES	电信集成电路类型：	RF AND BASEBAND CIRCUIT
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	30
宽度：	9 mm	Base Number Matches：	1

AD6643BCPZ-200 数据手册

Dual IF Receiver

AD6643

FEATURES

FUNCTIONAL BLOCK DIAGRAM

AVDD

AGND

DRVDD

Performance with NSR enabled

SNR: 76.1 dBFS in a 40 MHz band to 90 MHz at 185 MSPS

SNR: 73.6 dBFS in a 60 MHz band to 90 MHz at 185 MSPS

Performance with NSR disabled

SNR: 66.5 dBFS up to 90 MHz at 185 MSPS

SFDR: 88 dBc up to 185 MHz at 185 MSPS

Total power consumption: 706 mW at 200 MSPS

1.8 V supply voltages

LVDS (ANSI-644 levels) outputs

Integer 1-to-8 input clock divider (625 MHz maximum input)

Internal ADC voltage reference

AD6643

DCO±

D0±

VIN+A

VIN–A

VCM

NOISE SHAPING

REQUANTIZER

PIPELINE

ADC

VIN+B

VIN–B

NOISE SHAPING

REQUANTIZER

PIPELINE

ADC

D10±

OEB

REFERENCE

CLOCK

DIVIDER

SYNC

PDWN

SERIAL PORT

Flexible analog input range

1.4 V p-p to 2.0 V p-p (1.75 V p-p nominal)

Differential analog inputs with 400 MHz bandwidth

95 dB channel isolation/crosstalk

Serial port control

Energy saving power-down modes

SCLK SDIO

CSB

CLK+ CLK–

NOTES

1. THE D0± TO D10± PINS REPRESENT BOTH THE CHANNEL A

AND CHANNEL B LVDS OUTPUT DATA.

Figure 1.

User-configurable, built-in self test (BIST) capability

APPLICATIONS

Communications

Diversity radio and smart antenna (MIMO) systems

Multimode digital receivers (3G)

WCDMA, LTE, CDMA2000

WiMAX, TD-SCDMA

I/Q demodulation systems

General-purpose software radios

GENERAL DESCRIPTION

The AD6643 is an 11-bit, 200 MSPS, dual-channel intermediate

frequency (IF) receiver specifically designed to support multi-

antenna systems in telecommunication applications where high

dynamic range performance, low power, and small size are desired.

Each ADC output is connected internally to an NSR block. The

integrated NSR circuitry allows for improved SNR performance in

a smaller frequency band within the Nyquist bandwidth. The

device supports two different output modes selectable via the SPI.

With the NSR feature enabled, the outputs of the ADCs are

processed such that the AD6643 supports enhanced SNR per-

formance within a limited portion of the Nyquist bandwidth

while maintaining an 11-bit output resolution.

The device consists of two high performance analog-to-digital

converters (ADCs) and noise shaping requantizer (NSR) digital

blocks. Each ADC consists of a multistage, differential pipelined

architecture with integrated output error correction logic, and

each ADC features a wide bandwidth switched capacitor sampling

network within the first stage of the differential pipeline. An

integrated voltage reference eases design considerations. A duty

cycle stabilizer (DCS) compensates for variations in the ADC

clock duty cycle, allowing the converters to maintain excellent

performance.

The NSR block can be programmed to provide a bandwidth

of either 22% or 33% of the sample clock. For example, with a

sample clock rate of 185 MSPS, the AD6643 can achieve up to

75.5 dBFS SNR for a 40 MHz bandwidth in the 22% mode and

up to 73.7 dBFS SNR for a 60 MHz bandwidth in the 33% mode.

(continued on Page 3)

Rev. 0

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 registeredtrademarks arethe 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

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