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| 型号： | ADG3304BRUZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/20页 |
| 文件大小： | 0K |
| 描述： | IC XLATOR 4CH 1.2/5.5V 14TSSOP |
| 标准包装： | 2,500 |
| 逻辑功能： | 变换器，双向 |
| 位数： | 4 |
| 输入类型： | 逻辑 |
| 输出类型： | 逻辑 |
| 数据速率： | 50Mbps |
| 通道数： | 4 |
| 输出/通道数目： | 1 |
| 差分 - 输入:输出： | 无/无 |
| 传输延迟（最大）： | 6ns |
| 电源电压： | 1.15 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 带卷 (TR) |
ADG3304
Data Sheet
Rev. D | Page 18 of 20
APPLICATIONS
The ADG3304 is designed for digital circuits that operate at
different supply voltages; therefore, logic level translation is
required. The lower voltage logic signals are connected to the
A pins, and the higher voltage logic signals are connected to the
Y pins. The ADG3304 can provide level translation in both
directions from A→Y or Y→A on all four channels, eliminating
the need for a level translator IC for each direction. The internal
architecture allows the ADG3304 to perform bidirectional level
translation without an additional signal to set the direction in
which the translation is made. It also allows simultaneous data
flow in both directions on the same part, for example, when two
channels translate in A→Y direction while the other two translate
in Y→A direction. This simplifies the design by eliminating the
timing requirements for the direction signal and reducing the
number of ICs used for level translation.
Figure 40 shows an application where two microprocessors
operating at 1.8 V and 3.3 V, respectively, can transfer data
simultaneously using two full-duplex serial links, TX1/RX1
and TX2/RX2.
VCCY
Y1
Y2
Y3
Y4
EN
GND
A4
A3
A2
A1
VCCA
ADG3304
MICROPROCESSOR/
MICROCONTROLLER/
DSP
1.8V
3.3V
MICROPROCESSOR/
MICROCONTROLLER/
DSP
100nF
TX1
RX2
TX2
RX1
TX2
RX2
TX1
GND
04860-056
GND
Figure 40. 1.8 V to 3.3 V Level Translation Circuit on
Two Full-Duplex Serial Links
When the application requires level translation between a micro-
processor and multiple peripheral devices, the ADG3304 I/O
pins can be three-stated by setting EN = 0. This feature allows
the ADG3304 to share the data buses with other devices without
causing contention issues. Figure 41 shows an application where
a 1.8 V microprocessor is connected to a 3.3 V peripheral
device using the three-state feature.
VCCY
Y1
Y2
Y3
Y4
EN
GND
A4
A3
A2
A1
VCCA
ADG3304
MICROPROCESSOR/
MICROCONTROLLER/
DSP
CS
1.8V
3.3V
PERIPHERAL
DEVICE 1
100nF
I/OL1
I/OL4
I/OL3
I/OL2
I/OH1
I/OH4
I/OH3
I/OH2
GND
04860-055
100nF
GND
VCCY
Y1
Y2
Y3
Y4
EN
GND
A4
A3
A2
A1
VCCA
ADG3304
3.3V
PERIPHERAL
DEVICE 2
I/OH1
I/OH4
I/OH3
I/OH2
GND
Figure 41. 1.8 V to 3.3 V Level Translation Circuit
Using the Three-State Feature
LAYOUT GUIDELINES
As with any high speed digital IC, the printed circuit board
layout is important for the overall performance of the circuit.
Care should be taken to ensure proper power supply bypass and
return paths for the high speed signals. Each VCC pin (VCCA and
VCCY) should be bypassed using low effective series resistance
(ESR) and effective series inductance (ESI) capacitors placed as
close as possible to the VCCA pin and the VCCY pin. The parasitic
inductance of the high speed signal track may cause significant
overshoot. This effect can be reduced by keeping the length of
the tracks as short as possible. A solid copper plane for the
return path (GND) is also recommended.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADG3304BRUZ-REEL7 | 功能描述:IC XLATR BIDIR V-LVL 4CH 14TSSOP RoHS:是 类别:集成电路 (IC) >> 逻辑 - 变换器 系列:- 标准包装:1 系列:100ELT 逻辑功能:变换器 位数:1 输入类型:TTL 输出类型:差分 数据速率:- 通道数:2 输出/通道数目:1 差分 - 输入:输出:无/是 传输延迟（最大）:0.6ns 电源电压:3 V ~ 3.8 V 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:Digi-Reel® 产品目录页面:1088 (CN2011-ZH PDF) 其它名称:576-1360-6 |
| ADG3304SRU-EP-RL7 | 功能描述:转换 - 电压电平 1.2 V - 5.5 V 4-channel BI-DIR TRANS IC RoHS:否 制造商:Micrel 类型:CML/LVDS/LVPECL to LVCMOS/LVTTL 传播延迟时间:1.9 ns 电源电流:14 mA 电源电压-最大:3.6 V 电源电压-最小:3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MLF-8 |
| ADG3304SRUZ-EP-RL7 | 功能描述:IC XLATR BIDIR 1.15-5.5V 14TSSOP 制造商:analog devices inc. 系列:- 零件状态:在售 转换器类型:电压电平 通道类型:双向 电路数:1 每个电路的通道数:4 电压 - VCCA:1.15V ~ 5.5V 电压?- VCCB:1.65V ~ 5.5V 输入信号:- 输出信号:- 输出类型:三态，非反相 数据速率:50Mbps 工作温度:-55°C ~ 125°C（TA） 特性:- 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商器件封装:14-TSSOP 标准包装:1,000 |
| ADG3304WBRUZ-REEL | 制造商:Analog Devices 功能描述: |
| ADG3308 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Voltage 1.2 V to 5.5 V, Bidirectional, Logic Level Translators |
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