Datasheet > EL6263CU

EL6263CU

更新时间： 2024-11-19 23:14:47

品牌	Logo	应用领域
ELANTEC		开关放大器
页数	文件大小	规格书
2页	141K
描述
Quad 20MHz & Quad 70MHz, Switched Gain Pre-Amp

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EL6263CU 数据手册

EL6263C - Product Brief

Quad 20MHz & Quad 70MHz, Switched Gain Pre-Amp

Features

General Description

• Autozero of output offset to

<10mV

• 3 selectable gains

The EL6263C consists of four 30MHz trans-impedance amplifiers and

four 70MHz trans-impedance amplifiers. The four 70MHz amplifier

outputs also are averaged to provide differential 70MHz outputs.

• Space-saving QSOP-24 package

• Differential Sum & Sum-Bar

outputs

The EL6263C is designed to amplify the photodiode currents for CD,

DVD, or other photodiode pick-up applications.

Two TTL/CMOS-compatible select the gains for all eight amplifiers.

The gain settings for the fast amplifiers are 5.4kW, 10.7kW, and

28.6kW. The gain settings for the slow amplifiers are 13.3kW, 25kW,

and 66.7kW. The gain settings for the sum and sumbar outputs are

7.6kW, 14.3kW, and 38.1kW measured single-ended. Gain matching is

typically 3% channel to channel. The autozero input reduces each

amplifier’s output offset to less than 10mV when it goes high. The AZ

pin is TTL/CMOS-compatible.

• Single 5V supply

Applications

• DVD RAM, RW, and ROM

• CD RW, R and ROM

• MO drives

• Optical Pickup pre-amplifier

• Servo positioning systems

• High speed instrumentation

The E, F, G, and H channel bandwidths are 30MHz for all gains and

reasonable input and output loads. The A, B, C, D, S, and S channels

have bandwidths of 70MHz, 46MHz, and 40MHz at low, middle, and

high gains respectively after driving 25cm of flex circuit.

Ordering Information

Each amplifier output can typically sink or source up to 5mA and their

outputs can swing 1V_P-Pat full bandwidth.

Part No

Package

Tape & Reel

Outline #

EL6263CU

24-Pin QSOP

MDP0040

The EL6263C operates from a single +5V supply and is available in

QSOP-24 package. It is specified for operation from -0°C to 70°C.

Connection Diagram

GAIN 0 SELECT

GAIN 1 SELECT

REF INPUT

A INPUT

24 AZ INPUT

23 SUM OUTPUT

22 SUM OUTPUT

21 A OUTPUT

20 B OUTPUT

19 C OUTPUT

18 D OUTPUT

17 +5V (VDD)

16 E OUTPUT

15 F OUTPUT

14 G OUTPUT

13 H OUTPUT

B INPUT

C INPUT

D INPUT

0V (VSS)

E INPUT

F INPUT 10

G INPUT 11

H INPUT 12

Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these

specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.

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