Rainbow-electronics MAX3805 User Manual download pdf (Page 3)

MAX3805

10.7Gbps Adaptive Receive Equalizer

_______________________________________________________________________________________ 3

Note 1: Differential input sensitivity is defined at the input to a transmission line with path length up to 30in.

Note 2: Measured using 10 ones and 10 zeros at 10.7Gbps.

Note 3: Residual jitter is the difference in total jitter between the signal at the input to the transmission line and the equalizer output.

Total residual jitter is DJ

P-P

+ 14.1 × RJ

RMS

Note 4: Measured at 10.7Gbps using a pattern of 100 ones, PRBS 2

- 1, 100 zeros, PRBS 2

- 1.

Note 5: V

= 400mV

P-P

to 1200mV

P-P

, input path is 0 to 30in, 6-mil microstrip in FR-4, ε

= 4.5, and tan δ = 0.02.

Note 6: Guaranteed by design and characterization.

ELECTRICAL CHARACTERISTICS (continued)

(Pin 13 (HFPD) and pin 14 (LFPD) are not connected. Typical values are at V

= +3.3V, V

CC1

= V

CC2

= 1.8V, T

= +25°C, unless

otherwise noted.) (Values at -40°C are guaranteed by design and characterization.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

LVCMOS Input-Low Leakage

Current

-30 +30 µA

LVCMOS Input High V

1.5 V

LVCMOS Input Low V

0.5 V

LVCMOS Output High V

= 12.5µA 2.1 V

LVCMOS Output Low V

= 0.5mA 0.2 V

Typical Operating Characteristics

= 3.3V, V

CC1

= 1.8V, V

CC2

= 1.8V, and T

= +25°C, unless otherwise noted.)

EQUALIZER INPUT EYE AFTER 30in OF FR-4

- 1PRBS WITH 100 CIDs AT 9.953Gbps)

MAX3805 toc01

20ps/div

65mV/div

EQUALIZER OUTPUT EYE AFTER 30in OF FR-4

- 1PRBS WITH 100 CIDs AT 9.953Gbps)

MAX3805 toc02

20ps/div

65mV/div

EQUALIZER OUTPUT EYE AFTER 30in OF FR-4

- 1PRBS AT 10.7Gbps)

MAX3805 toc03

20ps/div

65mV/div

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Rainbow-electronics MAX3805 User Manual Page 3

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