Datasheet > AD8108_05

AD8108_05

更新时间： 2024-11-24 12:53:03

品牌	Logo	应用领域
亚德诺 - ADI		开关
页数	文件大小	规格书
33页	994K
描述
325 MHz, 8 Ã 8 Buffered Video Crosspoint Switches

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数据手册

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AD8108_05 数据手册

325 MHz, 8 × 8 Buffered Video

Crosspoint Switches

AD8108/AD8109

FUNCTIONAL BLOCK DIAGRAM

EATURES

SER/PAR D0 D1 D2 D3

8 × 8 high speed nonblocking switch arrays

AD8108: G = 1

AD8109: G = 2

Serial or parallel programming of switch array

CLK

32-BIT SHIFT REGISTER

WITH 4-BIT

PARALLEL LOADING

Serial data out allows daisy-chaining of multiple 8 × 8 arrays

to create larger switch arrays

Output disable allows connection of multiple devices

Pin-compatible with AD8110/AD8111 16 × 8 switch arrays

For 16 × 16 arrays see AD8116

Complete solution

DATA

OUT

DATA IN

UPDATE

SET INDIVIDUAL

OR RESET ALL

OUTPUTS

PARALLEL LATCH

RESET

TO "OFF"

DECODE

Buffered inputs

8  4:8 DECODERS

Eight output amplifiers

AD8108 (G = 1)

OUTPUT

BUFFER

G = +1

AD8108/AD8109

G = +2

AD8109 (G = 2)

Drives 150 Ω loads

Excellent video performance

60 MHz 0.1 dB gain flatness

0.02%/0.02° differential gain/differential phase error

(R_L= 150 Ω)

SWITCH

MATRIX

8 OUTPUTS

8 INPUTS

Excellent ac performance

−3 dB bandwidth: 325 MHz (AD8108), 250 MHz (AD8109)

Slew rate: 400 V/μs (AD8108), 480 V/μs (AD8109)

Low power of 45 mA

Low all hostile crosstalk of −83 dB @ 5 MHz

Reset pin allows disabling of all outputs (connected through

a capacitor to ground provides power-on reset capability)

Figure 1. Functional Block Diagram

Excellent ESD rating: exceeds 4000 V human body model

80-lead LQFP (12 mm × 12 mm)

and 0.02°, respectively, along with 0.1 dB flatness out to 60 MHz,

make the AD8108/AD8109 ideal for video signal switching.

APPLICATIONS

The AD8108 and AD8109 include eight independent output

buffers that can be placed into a high impedance state for paral-

leling crosspoint outputs so that off channels do not load the

output bus. The AD8108 has a gain of 1, while the AD8109

offers a gain of 2. They operate on voltage supplies of 5 V

while consuming only 45 mA of idle current. The channel

switching is performed via a serial digital control (which can

accommodate daisy-chaining of several devices) or via a parallel

control allowing updating of an individual output without

re-programming the entire array.

Routing of high speed signals including

Composite video (NTSC, PAL, S, SECAM)

Component video (YUV, RGB)

Compressed video (MPEG, Wavelet)

3-level digital video (HDB3)

GENERAL DESCRIPTION

The AD8108/AD8109 are high speed 8 × 8 video crosspoint

switch matrices. They offer a −3 dB signal bandwidth greater than

250 MHz and channel switch times of less than 25 ns with 1%

settling. With −83 dB of crosstalk and −98 dB isolation (@5 MHz),

the AD8108/AD8109 are useful in many high speed applications.

The differential gain and differential phase of better than 0.02%

The AD8108/AD8109 is packaged in an 80-lead LQFP package

and is available over the extended industrial temperature range

of −40°C to +85°C.

Rev. B

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

registered trademarks are the 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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与AD8108_05相关器件

型号	品牌	获取价格	描述	数据表
AD8108_15	ADI	获取价格	325 MHz, 8 8 Buffered Video Crosspoint Switches
AD8108_16	ADI	获取价格	8x8 Buffered Video Crosspoint Switches
AD8108AST	ADI	获取价格	325 MHz, 8 x 8 Buffered Video Crosspoint Switches
AD8108ASTZ	ROCHESTER	获取价格	8-CHANNEL, CROSS POINT SWITCH, PQFP80, 12 X 12 MM, LEAD FREE, PLASTIC, MO-026BDD, LQFP-80
AD8108ASTZ	ADI	获取价格	325 MHz, 8 x 8 Buffered Video Crosspoint Switch (Gain = 1)
AD8108ASTZ2	ADI	获取价格	325 MHz, 8 Ã 8 Buffered Video Crosspoint Swi
AD8108-EB	ADI	获取价格	325 MHz, 8 x 8 Buffered Video Crosspoint Switches
AD8109	ADI	获取价格	325 MHz, 8 x 8 Buffered Video Crosspoint Switches
AD8109*	ADI	获取价格	325 MHz. 8 3 8 Buffered Video Crosspoint Switches
AD8109_15	ADI	获取价格	325 MHz, 8 8 Buffered Video Crosspoint Switches

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