MAX3746 datasheet(2/13 Pages) MAXIM

Part #	MAX3746

Description	Low-Power, 622Mbps to 3.2Gbps Limiting Amplifier

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Manufacturer	MAXIM [Maxim Integrated Products]

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Low-Power, 622Mbps to 3.2Gbps

Limiting Amplifier

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

Power-Supply Voltage (VCC) .................................-0.5V to +4.5V

Voltage at IN+, IN- ..........................(VCC - 2.4V) to (VCC + 0.5V)

Voltage at DISABLE, OUTPOL, RSSI,

LOS, TH ...................................................-0.5V to (VCC + 0.5V)

Current into LOS.....................................................1mA to +9mA

Differential Input Voltage (IN+ - IN-) .....................................2.5V

Continuous Current at CML Outputs

(OUT+, OUT-) ................................................-25mA to +25mA

Continuous Power Dissipation (TA = + 70°C)

16-Pin QFN (derate 17.7mW above +70°C) .....................1.4W

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

Storage Ambient Temperature Range (Ts) .......-55°C to +150°C

ELECTRICAL CHARACTERISTICS

(VCC = +2.97V to +3.63V, CML output load is 50

Ω to VCC, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC =

+3.3V, TA = +25°C, unless otherwise specified. The data input transition time is controlled by 4th-order Bessel filter with f-3dB = 0.75 x

2.667GHz for all data rates of 2.667Gbps and below, and with f-3dB = 0.75 x 3.2GHz for a data rate of 3.2Gbps.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Single-Ended Input Resistance

RIN

Single ended to VCC

42

50

58

Ω

se S11

Single ended, f < 3GHz, DUT is powered on

14

Input Return Loss

diff S11

Differential, f < 3GHz, DUT is powered on

15

dB

Input Sensitivity

VIN-MIN

(Note 1)

2

4

mVP-P

Input Overload

VIN-MAX

(Note 1)

1200

mVP-P

Single-Ended Output Resistance

ROUT

Single ended to VCC

42

50

58

Ω

Output Return Loss

diff S22

Differential, f < 3GHz, DUT is powered on

20

dB

4mVP-P

< VIN < 1200mVP-P,

OUTPOL connected to VCC or GND

600

800

1000

CML Differential Output Voltage

4mVP-P

< VIN < 1200mVP-P,

OUTPOL open or connected to 30k

Ω

400

500

600

mVP-P

Differential Output Signal when

Disabled

Outputs AC-coupled,

VIN-MAX applied to input (Note 2)

10

mVP-P

K28.5 pattern at 3.2Gbps (Note 2)

8.4

18

K28.5 pattern at 3.2Gbps at TA = +100

°C

10.2

223 - 1 PRBS equivalent at 2.7Gbps (Note 2)

11.6

23

223 - 1 PRBS equivalent pattern at 2.7Gbps

at TA = +100

°C

13.1

K28.5 pattern at 2.1Gbps

8

20

K28.5 pattern at 2.1Gbps at TA = +100

°C

9.7

223 - 1 PRBS equivalent pattern at 622Mbps

(Note 2)

42.5

69

Deterministic Jitter

(Note 3)

DJ

223 - 1 PRBS equivalent pattern at 622Mbps

at TA = +100

°C

47.8

psP-P

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