Rainbow-electronics MAX3983 Manual do Utilizador descarregar pdf (Página 4)

MAX3983

Quad Copper-Cable Signal Conditioner

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

= +3.0V to +3.6V, T

= 0°C to +85°C. Typical values are at V

= +3.3V and T

= +25°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RX_ENABLE = high (Notes 1, 7) 1100 1500

Output Swing

RX_ENABLE = low 30

P-P

Output Resistance

RX_OUT[1:4]+ or RX_OUT[1:4]- to V

, single

ended

42 50 58 Ω

Output Return Loss 100MHz to 2GHz (Note 1) 10 15 dB

Output Transition Time t

, t

20% to 80% (Notes 1, 8) 45 80 ps

Random Jitter (Notes 1, 8) 1.6 ps

RMS

RX_PE = low 3

Output Preemphasis

RX_PE = high 6

Source to

RX_IN

RX_OUT to

Load

RX_PE

0in, 6-mil FR4 0

Residual Output Deterministic

Jitter at 2.5Gbps

(Notes 1, 5, 9, 10)

5m, 28AWG

IB Cable

Assembly

without

preemphasis

20in, 6-mil FR4 1

0.10 0.15 UI

P-P

Source to

RX_IN

RX_OUT to

Load

RX_PE

0in, 6-mil FR4 0

Residual Output Deterministic

Jitter at 3.2Gbps

(Notes 1, 5, 9, 10)

5m, 28AWG

IB cable

assembly

without

preemphasis

20in, 6-mil FR4 1

0.15 0.20 UI

P-P

Signal-Detect Assert Level RX_IN for RX_SD = high (Note 11) 175 mV

P-P

Signal-Detect Off RX_IN for RX_SD = low (Note 11) 85 mV

P-P

END-TO-END JITTER (TX AND RX COMBINED PERFORMANCE)

Source to

TX_IN

TX_OUT to

RX_IN

TX_PE1

TX_PE0

RX_OUT to Load

RX_PE

1m, 24AWG 0 0 0in 0

15m, 24AWG 1 1 20in 1

0.15 0.20

Residual Output Deterministic

Jitter at 2.5Gbps

(Notes 1, 12, 13, 14)

6-mil FR4 ≤

20in

20m, 24AWG 1 1 20in 1 0.2 0.25

P-P

1 2 3 4 5 6 7 8 9 ... 15 16

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