SY88993AVKG(2005) データシートの表示（PDF） - Micrel

部品番号

コンポーネント説明

メーカー

SY88993AVKG
(Rev.:2005)

5V/3.3V 3.2Gbps HIGH-SPEED LIMITING POST AMPLIFIER

Micrel 

Micrel, Inc.

APPLICATION NOTE

Output Termination

The SY88993AV outputs must be terminated with a 50Ω

load to VCC.

Layout and PCB Design

Since the SY88993AV is a high-frequency component,

performance can largely be determined by board layout

and design. A common problem with high-gain amplifiers is

feedback from the large swing outputs to the input via power

supply.

The SY88993AV ground pin should be connected to the

circuit board ground. Use multiple PCB vias close to the

part to connect to ground. Avoid long, inductive runs which

can degrade performance.

ESD STRUCTURE

VCC

VCC

50Ω

50Ω

SY88993AV

VCC

50Ω

DOUT Z0 = 50Ω

/DOUT

Z0 = 50Ω

50Ω

16mA

GND

ESD STRUCTURE

22nF

DIN

22nF

/DIN

0.1µF

VREF

GND

Figure 1. Differential Input Configuration

Figure 2. Differential Output Configuration

VCC

R1

LOSLVL

R2

VREF

NOTES:

1. Resistor Divider = R2/ (R1 + R2)

2. R1 + R2 ≥ 5kΩ

Figure 3. LOSLVL Circuit

M9999-082205

hbwhelp@micrel.com or (408) 955-1690

5

Share Link: