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

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, VCC..............................................-0.5V to +6.0V

Current into BIAS+, BIAS-, OUT+, OUT- ........-20mA to +150mA

Current into MD.................................................... -5mA to +5mA

Current into FAIL ...............................................-10mA to +10mA

Voltage at IN+, IN-, BEN+, BEN-, EN,

LONGB ...................................................-0.5V to (VCC + 0.5V)

Voltage at MODSET, APCSET, BIASMAX .............-0.5V to +3.0V

Voltage at OUT+, OUT-.............................+0.5V to (VCC + 1.5V)

Voltage at BIAS+, BIAS-............................+0.5V to (VCC + 0.5V)

Continuous Power Dissipation (TA = +85°C)

24-Lead Thin QFN-EP

(derate 27.8mW/°C above +85°C) .............................1805mW

Operating Ambient Temperature

Range (TA).......................................................-40°C to +85°C

Operating Junction Temperature

Range (TJ) .....................................................-55°C to +150°C

Storage Ambient Temperature

Range (TSTG) .................................................-55°C to +150°C

Processing Temperature (die) .........................................+400°C

Lead Temperature (soldering,10s) ..................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

OPERATING CONDITIONS

PARAMETER

Supply Voltage

Supply Turn-On Time

Ambient Temperature

Data Mark Density

Consecutive Identical Digits

Data Rate

Monitor Diode Capacitance

Laser-to-Monitor Diode Gain

Extinction Ratio

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

VCC

10% to 90%

3.0

3.3

3.6

V

0.001

10

ms

-40

+85

°C

Average

50

%

CID

80

Bits

155

2500 Mbps

CMD For minimum burst on-time (Note 1)

15

pF

ALMD

d (monitor current)/d (laser current (above ITH))

(Notes 2, 3)

0.005

0.050

re

P1/P0 (Note 3)

6.6

16.0

Note 1: Larger MD capacitance increases the minimum burst on-time.

Note 2: Laser-to-monitor gain equals the laser slope efficiency multiplied by the photodiode responsivity multiplied by the losses due

to laser-to-monitor diode coupling (ALMD = ηLASER ✕ ρMONITORDIODE ✕ LLASER-TO-MONITORDIODE).

where L = laser-to-monitor diode coupling loss. ALMD can also be calculated by:

ALMD

=







2 × IMD

IMOD













re

re

−

+

I

I

where IMD, IMOD, and re (extinction ratio) are set externally.

Note 3: Operation outside this range degrades APC loop performance.

ELECTRICAL CHARACTERISTICS

(Typical values are at VCC = +3.3V, IBIAS = 20mA, IMOD = 25mA, extinction ratio = 10dB, and TA = +25°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

POWER SUPPLY

Power-Supply Current

INPUT SPECIFICATIONS

ICC

(Note 1)

40

70

mA

Differential Input Voltage

VIN, VBEN

0.2

1.6

VP-P

Common-Mode Input Voltage

VCM

VCC -

1.49

VCC -

1.32

VCC -

VIN/4

V

2 _______________________________________________________________________________________

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