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| 型号： | AD6642BBCZ |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 无绳电话/电话 |
| 英文描述： | Dual IF Receiver; Package: Chip Scale BGA; No of Pins: 144; Temperature Range: Ind |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PBGA144 |
| 封装： | 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MO-205AC, CSPBGA-144 |
| 文件页数： | 24/32页 |
| 文件大小： | 1032K |
| 代理商： | AD6642BBCZ |
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AD6642
Rev. A | Page 30 of 32
APPLICATIONS INFORMATION
DESIGN GUIDELINES
Before starting the design and layout of the AD6642 in a system,
it is recommended that the designer become familiar with these
guidelines, which discuss the special circuit connections and
layout requirements needed for certain pins.
Power and Ground Recommendations
When connecting power to the AD6642, it is recommended
that two separate 1.8 V supplies be used. Use one supply for
analog (AVDD); use a separate supply for the digital outputs
(DRVDD). The AVDD and DRVDD supplies should be isolated
with separate decoupling capacitors. Several different decoupling
capacitors can be used to cover both high and low frequencies.
These capacitors should be located close to the point of entry
at the PCB level and close to the pins of the part, with minimal
trace length.
A single PCB ground plane should be sufficient when using the
AD6642. With proper decoupling and smart partitioning of the
PCB analog, digital, and clock sections, optimum performance
is easily achieved.
VCMx Pins
The VCMx pins are provided to set the common-mode level
of the analog inputs. The VCMx pins should be decoupled to
ground with a 0.1 μF capacitor, as shown in Figure 31.
SPI Port
The SPI port should not be active during periods when the full
dynamic performance of the AD6642 is required. Because the
SCLK signal, the CSB signal, and the SDIO signal are typically
asynchronous to the ADC clock, noise from these signals can
degrade AD6642 performance. If the on-board SPI bus is used
for other devices, it may be necessary to provide buffers between
this bus and the AD6642 to prevent these signals from transi-
tioning at the receiver inputs during critical sampling periods.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD6642BBCZRL | 功能描述:IC IF RCVR 11BIT 200MSPS 144BGA RoHS:是 类别:RF/IF 和 RFID >> RF 其它 IC 和模块 系列:- 标准包装:100 系列:* |
| AD6642EBZ | 功能描述:BOARD EVALUATION FOR AD6642 RoHS:是 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:- 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796 |
| AD6643 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual IF Receiver 1.8 V supply voltages Internal ADC voltage reference |
| AD6643-200EBZ | 功能描述:BOARD EVALUATION FOR AD6643 RoHS:是 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:- 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796 |
| AD6643-250EBZ | 功能描述:IC IF RCVR 11BIT 250MSPS 64LFCSP RoHS:是 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:- 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796 |
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