ADN2847ACP-32-RL datasheet(10/12 Pages) AD

Part #	ADN2847ACP-32-RL

Description	3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver

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Manufacturer	AD [Analog Devices]

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REV. 0

–10–

ADN2847

GND2

GND

VCC2

GND

IMODN

CLKN

IMODN

CLKP

GND2

GND1

IMODP

DATAP

IMODP

DATAN

GND2

GND1

GND2

VCC1

IBIAS

GND

IBIAS

PAVCAP

ERCAP

CCBIAS

ADN2847

13

24

36

25

VCC

FAIL

DEGRADE

DATAP

DATAN

CLKN

CLKP

GND

VCC

100nF

10 F

GND

VCCs SHOULD HAVE BYPASS CAPACITORS AS

CLOSE AS POSSIBLE TO THE ACTUAL SUPPLY PINS

ON THE ADN2847 AND THE LASER DIODE USED.

CONSERVATIVE DECOUPLING WOULD INCLUDE

100pF CAPACITORS IN PARALLEL WITH 10nF

CAPACITORS.

1

12

1.5k

37

48

VCC

MPD

LD

VCC

LD = LASER DIODE

MPD = MONITOR PHOTODIODE

ALS

1k

1.5k

10nF

1 F

1 H

NOTES

* DESIGNATES COMPONENTS THAT NEED TO BE OPTIMIZED FOR THE TYPE OF LASER USED

**FOR DIGITAL PROGRAMMING,THE ADN2850 OR THE ADN2860 OPTICAL SUPERVISOR CAN BE USED.

*

**

*

Figure 12. AC-Coupled 50 Mbps to 3.3 Gbps Test Circuit, Data Not Clocked

Figure 13. A 2.5 Gbps Optical Eye at 25

°C. Average

Power = 0 dBm, Extinction Ratio = 10 dB, PRBS 31

Pattern. Eye Obtained Using a DFB Laser.

Figure 14. A 2.5 Gbps Optical Eye at 85

°C. Average

Power = 0 dBm, Extinction Ratio = 10 dB, PRBS 31

Pattern. Eye Obtained Using a DFB Laser.

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Manufacturer	Part #	Datasheet	Description
Analog Devices	ADN2847	502Kb / 16P	3.3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver REV. B

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Similar Description - ADN2847ACP-32-RL

Manufacturer	Part #	Datasheet	Description
Analog Devices	ADN2870	764Kb / 20P	3.3 V Dual-Loop, 50 Mbps to 3.3 Gbps Laser Diode Driver REV. 0
	ADN2847	502Kb / 16P	3.3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver REV. B
	ADN2872	588Kb / 20P	3.3 V Dual-Loop, 50 Mbps to 3.3 Gbps Laser Diode Driver REV. 0
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	ADN2848	347Kb / 12P	3.3 V Dual-Loop 50 Mbps to 1.25 Gbps Laser Diode Driver REV. B
	ADN2848	254Kb / 12P	3 V Dual-Loop 50 Mbps to 1.25 Gbps Laser Diode Driver REV. 0
	ADN2871	768Kb / 20P	3.3 V, 50 Mbps to 4.25 Gbps, Single-Loop, Laser Diode Driver REV. A
	ADN2873	625Kb / 20P	3.3 V, 50 Mbps to 4.25 Gbps, Single-Loop, Laser Diode Driver REV. 0
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ADN2847ACP-32-RL Datasheet(PDF) 10 Page - Analog Devices

ADN2847ACP-32-RL Datasheet(HTML) 10 Page - Analog Devices

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