MAX3656 データシートの表示（PDF） - Maxim Integrated

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MAX3656

155Mbps to 2.5Gbps Burst-Mode Laser Driver

Maxim Integrated 

155Mbps to 2.5Gbps Burst-Mode

Laser Driver

BEN+

BEN-

IBIAS

+

IMOD

ENABLE DELAY

BEN ±MIDPOINT

10% OF IBIAS

IFINAL × 110%

IFINAL

IFINAL × 90%

DISABLE DELAY

Figure 1. Enable and Disable Delay Times

VCC

22.1Ω

OUT-

MAX3656

OUT+

BIAS+

BIAS-

49.9Ω VCC

IMOD

VCC

22.1Ω

Z0 = 50Ω

26.7Ω

IBIAS

Z0 = 50Ω

121Ω VCC

OSCILLOSCOPE

50Ω

50Ω

26.7Ω

35.7Ω

Figure 2. Output Termination for Characterization

(TA = +25°C, unless otherwise noted.)

OPTICAL EYE DIAGRAM

(155.52Mbps, 117MHz FILTER,

PATTERN = PRBS 27 - 1 + 80 CID)

MAX3656 toc01

Typical Operating Characteristics

OPTICAL EYE DIAGRAM

(622.08Mbps, 467MHz FILTER,

PATTERN = PRBS 27 - 1 + 80 CID)

MAX3656 toc02

OPTICAL EYE DIAGRAM

(1.25Gbps, 933MHz FILTER,

PATTERN = PRBS 27 - 1 + 80 CID)

MAX3656 toc03

EXCELIGHT SLT3120-DN LASER

AVERAGE OPTICAL POWER = -4dBm

EXTINCTION RATIO = 15.2dB

MASK MARGIN = 42%

EXCELIGHT SLT3120-DN LASER

AVERAGE POWER = -4dBm

EXTINCTION RATIO = 15.1dB

MASK MARGIN = 30%

EXCELIGHT SLT3120-DN LASER

AVERAGE POWER = -3.5dBm

EXTINCTION RATIO = 14dB

MASK MARGIN = 23%

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