SY88923KCTR datasheet(4/6 Pages) MICREL

tên linh kiện	SY88923KCTR

Giải thích chi tiết về linh kiện	2.5Gbps HIGH-SPEED LIMITING POST AMPLIFIER Not recommended for new designs

PDF	6 Pages

Scroll/Zoom	100%

nhà sản xuất	MICREL [Micrel Semiconductor]

Trang chủ	http://www.micrel.com

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4 / 6 page

SY88923

Micrel, Inc.

M9999-061907

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

LOS Assert and Deassert Levels

vs LOSLVL

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LOSLVL (V)

Deassert

Assert

Output Termination

The SY88923 outputs must be terminated with a 50Ω

load to VCC – 2V (or thevenin equivalent).

Layout and PCB Design

Since the SY88923 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 SY88923 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.

DESIGN PROCEDURE

Figure 3. LOSLVL Circut

Note:

Resistor Divider = R2/ (R1 + R2)

R1 + R2 ≥ 5kΩ

Figure 2. Differential Input Configuration

DIN+

DIN–

VREF

50Ω

0.1µF

VCC

LOSLVL

VREF

PERFORMANCE CURVE

Figure 4. 223-1 Pattern

Figure 5. 223-1 Pattern

Resistor Divider R2 / (R1 + R2)

Deassert

Assert

LOS Assert and Deassert Levels

vs Resistor Divide

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10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

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