MAX3784A データシートの表示（PDF） - Maxim Integrated

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MAX3784A

5Gbps PCB Equalizer

Maxim Integrated 

5Gbps PCB Equalizer

VCC

50Ω

50Ω

250μA

VCC

50Ω

50Ω

OUT+

OUT-

Figure 3. CML Input Equivalent Circuit

Applications Information

Alternate Data Rates

The MAX3784/MAX3784A is optimized for automatic

operation at 5Gbps. Equalization at other data rates,

such as 1.25Gbps and 2.5Gbps, is possible. See the

Typical Operating Characteristics for Deterministic Jitter

vs. Line Length and Deterministic Jitter vs. Amplitude

for typical performance at these data rates.

Figure 4. CML Output Equivalent Circuit

Layout Considerations

Circuit board layout and design can significantly affect

the MAX3784/MAX3784As’ performance. Use good

high-frequency design techniques, including minimiz-

ing ground inductance and connections and using con-

trolled-impedance transmission lines for the

high-frequency data signals. Route signals differentially

to reduce EMI susceptibility and crosstalk. Solder the

exposed pad to supply ground for proper thermal and

electrical operation.

Place power-supply decoupling capacitors as close as

possible to the VCC pins.

Pin Configurations (continued)

TOP VIEW

12 11 10 9

EN 13

N.C. 14

N.C. 15

N.C. 16

MAX3784

MAX3784A

+

*EP

1

2

3

4

8 N.C.

7 VCC

6 GND

5 N.C.

TQFN

* THE EXPOSED PAD MUST BE SOLDERED TO SUPPLY GROUND

FOR CORRECT THERMAL AND ELECTRICAL PERFORMANCE.

6 _______________________________________________________________________________________

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