Rainbow-electronics MAX3798 Bedienungsanleitung PDF herunterladen (Seite 3)

MAX3798

1.0625Gbps to 10.32Gbps, Integrated, Low-

Power SFP+ Limiting Amplifier and VCSEL Driver

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= 2.85V to 3.63V, T

= -40°C to +85°C, CML receiver output load is AC-coupled to differential 100Ω, C

= 1nF, transmitter out-

put load is AC-coupled to differential 100Ω (see Figure 1), typical values are at +25°C, V

= 3.3V, I

BIAS

= 6mA, I

MOD

= 6mA, unless

otherwise specified. Registers are set to default values unless otherwise noted, and the 3-wire interface is static during measure-

ments. For testing, the MODE_SEL bit was used and the MSEL pin was left open.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DUT is powered on, 1GHz < f  5GHz 9

Output Return Loss SCC22

DUT is powered on, 1GHz < f  16GHz 7

CML Differential Output Voltage

High

5mV

P-P

 V

 1200mV

P-P

, SET_CML[162] 595 800 1005 mV

P-P

CML Differential Output Voltage

Medium

10mV

P-P

 V

 1200mV

P-P

, SET_CML[80] 300 400 515 mV

P-P

Differential Output Signal When

Disabled

Outputs AC-coupled, V

INMAX

applied to

input V

DIFF_ROUT

= 800mV

P-P

at 8.5Gbps

(Notes 2, 3)

6 15 mV

P-P

10mV

P-P

 V

 1200mV

P-P

MODE_SEL = 1, V

DIFF_ROUT

= 400mV

P-P

26 35

5mV

P-P

 V

 1200mV

P-P

MODE_SEL = 0, SLEW_RATE = 1,

DIFF_ROUT

= 800mV

P-P

28 50

Data Output Transition Time

(20% to 80%)

(Notes 2, 3, 4)

5mV

P-P

 V

 1200mV

P-P

MODE_SEL = 0, SLEW_RATE = 0,

DIFF_ROUT

= 800mV

P-P

Rx TRANSFER CHARACTERISTICS

60mV

P-P

 V

 400mV

P-P

at 10.32Gbps,

MODE_SEL = 1, V

DIFF_ROUT

= 400mV

P-P

4 12

10mV

P-P

 V

 1200mV

P-P

at 8.5Gbps,

MODE _SEL = 1, V

DIFF_ROUT

= 400mV

P-P

4 12

10mV

P-P

 V

 1200mV

P-P

at 4.25Gbps,

MODE _SEL = 1, V

DIFF_ROUT

= 400mV

P-P

10mV

P-P

 V

 1200mV

P-P

at 8.5Gbps,

MODE _SEL = 0, V

DIFF_ROUT

= 400mV

P-P

5 10

5mV

P-P

 V

 1200mV

P-P

at 4.25Gbps,

MODE _SEL = 0, SLEW_RATE = 1,

DIFF_ROUT

= 800mV

P-P

6 20

Deterministic Jitter

(Notes 2, 3, 5)

5mV

P-P

 V

 1200mV

P-P

at 4.25Gbps,

MODE _SEL = 0, SLEW_RATE = 0,

DIFF_ROUT

= 800mV

P-P

Input = 60mV

P-P

at 4.25Gbps

MODE_SEL = 0, V

DIFF_ROUT

= 800mV

P-P

0.36 0.51

Random Jitter (Notes 2, 3) RJ

Input = 60mV

P-P

at 8.5Gbps

MODE _SEL = 1, V

DIFF_ROUT

= 400mV

P-P

0.32 0.48

RMS

= 0.1μF 2

Low-Frequency Cutoff

= open 500

kHz

Rx LOS SPECIFICATIONS

LOS Assert Sensitivity Range 14 77 mV

P-P

LOS Hysteresis 10 x log (V

DEASSERT

ASSERT

) (Note 6) 1.25 2.1 dB

1 2 3 4 5 6 7 8 ... 34 35

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