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MAX3940E_D

10Gbps EAM Driver with Integrated Bias Network

Maxim Integrated 

10Gbps EAM Driver with Integrated

Bias Network

ABSOLUTE MAXIMUM RATINGS

Supply Voltage VEE ..............................................-6.0V to +0.5V

Voltage at MODEN,

RTEN, PLRT, MODSET, BIASSET ...........(VEE - 0.5V) to +0.5V

Voltage at DATA+, DATA-, CLK+, and CLK-……-1.65V to +0.5V

Voltage at OUT .............................................……….-4V to +0.5V

Voltage at PWC+, PWC- ...................(VEE - 0.5V) to (VEE + 1.7V)

Current into or out of OUT..............................……………...80mA

Storage Temperature Range .....................……-55°C to +150°C

Operating Junction Temperature Range....……-55°C to +150°C

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

ELECTRICAL CHARACTERISTICS

(VEE = -5.5V to -4.9V, TA = -40°C to +85°C. Typical values are at VEE = -5.2V, IBIAS = 30mA, IMOD = 100mA, and TA = +25°C, unless

otherwise noted.)

PARAMETER

Power-Supply Voltage

Supply Current

Power-Supply Noise Rejection

SIGNAL INPUT (Note 3)

Input Data Rates

Single-Ended Input Resistance

Single-Ended Input Voltage

Differential Input Voltage

Differential Input Return Loss

EAM BIAS

Maximum Bias Current

Minimum Bias Current

BIASSET Voltage Range

Equivalent Bias Resistance

Bias-Current-Setting Accuracy

Bias-Current Temperature

Stability

BIASSET Input Resistance

BIASSET Bandwidth

EAM MODULATION

Maximum Modulation Current

Minimum Modulation Current

MODSET Voltage Range

Equivalent Modulation Resistance

SYMBOL

VEE

IEE

PSNR

CONDITIONS

Excluding IBIAS and Retime disabled

IMOD (Note 1)

Retime enabled

f ≤ 10MHz (Note 2), see Figure 4

RIN

VIS

VID

RLIN

NRZ

Input to GND (Note 3)

DC-coupled, Figure 1a

AC-coupled, Figure 1b

DC-coupled (Note 4)

AC-coupled (Note 4)

(Note 3)

≤ 10GHz

10GHz < f ≤ 15GHz

VBIASSET

RBSEQV

VBIASSET = VEE + 2V

VBIASSET = VEE

(Note 5)

TA = +25°C

(Note 6)

VBIASSET = VEE + 0.11V

VBIASSET = VEE + 0.36V

VBIASSET = VEE + 2.0V

VBIASSET < VEE + 0.36V

VBIASSET ≥ VEE + 0.36V

50Ω driver load, VBIASSET = VEE + 0.55V,

Figure 2

VMODSET

RMODEQV

VMODSET = VEE + 1V

VMODSET = VEE

(Note 7)

MIN

-5.5

42.5

-1

-0.4

0.2

0.2

50

VEE

2.1

8.8

52

-1300

-480

120

VEE

TYP MAX UNITS

-4.9

V

122

170

mA

139

195

12

dB

10.7

Gbps

50

58.5

Ω

0

V

+0.4

2.0

1.6

VP-P

17

dB

10

55

mA

0.3

1

mA

VEE + 2 V

36.4

Ω

3.9

11.2

mA

58

+1300

ppm/°C

+480

20

kΩ

5

MHz

127

38

11.1

40

VEE + 1

mAP-P

mAP-P

V

Ω

2 _______________________________________________________________________________________

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