Datasheet > 3D3523G-20

3D3523G-20

更新时间： 2024-10-31 10:41:11

品牌	Logo	应用领域
DATADELAY		光电二极管
页数	文件大小	规格书
5页	312K
描述
Manchester Encoder/Decoder, CMOS, PDSO14, 0.300 INCH, ROHS COMPLIANT, GULLWING, DIP-14

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3D3523G-20 数据手册

3D3523



MONOLITHIC MANCHESTER

ENCODER/DECODER

(SERIES 3D3523)

delay

devices, _inc.

FEATURES

PACKAGES

•

All-silicon, low-power CMOS technology

Encoder and decoder function independently

Encoder has buffered clock output

3.3V operation

CIN

CEN

COUT

DIN

VDD

CBUF

LOOP

TXENB

DOUTB

TXB

Vapor phase, IR and wave solderable

Auto-insertable (DIP pkg.)

RESB

GND

Low ground bounce noise

Maximum data rate: 50 MBaud

3D3523-xxx

DIP (.300)

3D3523G-xxx Gull Wing (.300)

3D3523D-xxx SOIC (.150)

Data rate range: ±15%

Lock-in time: 1 bit

For mechanical dimensions, click here.

For package marking details, click here.

FUNCTIONAL DESCRIPTION

PIN DESCRIPTIONS

Encoder:

The 3D3523 is a monolithic CMOS Manchester Encoder/Decoder combo

chip. The device uses bi-phase-level encoding to embed a clock signal

into a data stream for transmission across a communications link. In this

encoding mode, a logic one is represented by a high-to-low transition in

the center of the bit cell, while a logic zero is represented by a low-to-high

transition.

CIN

DIN

Clock Input

Data Input

RESB Reset

CEN

Clock buffer enable

TXENB Transmit enable

CBUF Buffered clock

TX,TXB Transmitted signal

The Manchester encoder combines the clock (CIN) and data (DIN) into a

single bi-phase-level signal (TX). An inverted version of this signal (TXB) is

also available. The data baud rate (in MBaud) is equal to the input clock

frequency (in MHz). A replica of the clock input is also available (CBUF).

Decoder:

Received Signal

COUT Recovered Clock

DOUTB Recovered Data

The encoder may be reset by setting the RESB input low; otherwise, it

should be left high. The TX and TXB signals may be disabled (high-Z) by

setting TXENB high. Similarly, CBUF may be disabled by setting CEN low.

Under most operating conditions, TX and TXB are always enabled, and

CBUF is not used. With this in mind, the 3D3523 provides internal pull-

down resistors on CEN and TXENB, so that most users can leave these

inputs uncommitted.

Common:

LOOP Loop enable

VDD

GND

+3.3 Volts

Ground

The Manchester decoder accepts the embedded-clock signal at the RX input. The recovered clock and

data signals are presented on COUT and DOUTB, respectively, with the data signal inverted. The

operating baud rate (in MBaud) is specified by the dash number of the device. The input baud rate may

vary by as much as ±15% from the nominal device baud rate without compromising the integrity of the

information received.

Because the decoder is not PLL-based, it does not require a long preamble in order to lock onto the

received signal. Rather, the device requires at most one bit cell before the data presented at the output is

valid. This is extremely useful in cases where the information arrives in bursts and the input is otherwise

turned off.

Normally, the encoder and decoder function independently. However, if the LOOP input is set high, the

encoded TX signal is fed back internally into the decoder and the RX input is ignored. This feature is

useful for diagnostics. The LOOP input has an internal pull-down resistor and may be left uncommitted if

this feature is not needed.

2006 Data Delay Devices

Doc #06006

5/8/2006

DATA DELAY DEVICES, INC.

3 Mt. Prospect Ave. Clifton, NJ 07013

12 3 4 5

中文翻译

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与3D3523G-20相关器件

型号	品牌	获取价格	描述	数据表
3D3523G-25	DATADELAY	获取价格	Manchester Encoder/Decoder, CMOS, PDSO14, 0.300 INCH, ROHS COMPLIANT, GULLWING, DIP-14
3D3523G-5	DATADELAY	获取价格	Manchester Encoder/Decoder, CMOS, PDSO14, 0.300 INCH, ROHS COMPLIANT, GULLWING, DIP-14
3D3523G-50	DATADELAY	获取价格	Manchester Encoder/Decoder, CMOS, PDSO14, 0.300 INCH, ROHS COMPLIANT, GULLWING, DIP-14
3D35DEV-100	GRAYHILL	获取价格	– Easy application creation and integration w
3D35XK-100	GRAYHILL	获取价格	– Easy application creation and integration w
3D3608	DATADELAY	获取价格	8-BIT & 12-BIT PROGRAMMABLE PULSE GENERATORS
3D3608R-0.25	DATADELAY	获取价格	8-BIT & 12-BIT PROGRAMMABLE PULSE GENERATORS
3D3608R-0.5	DATADELAY	获取价格	8-BIT & 12-BIT PROGRAMMABLE PULSE GENERATORS
3D3608R-1	DATADELAY	获取价格	8-BIT & 12-BIT PROGRAMMABLE PULSE GENERATORS
3D3608R-10	DATADELAY	获取价格	8-BIT & 12-BIT PROGRAMMABLE PULSE GENERATORS

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