ADN2530 11.3 Gbps, Active Back-Termination, Differential VCSEL Driver

The ADN2530 laser diode driver is designed for direct modulation of packaged VCSELs with a differential resistance ranging from 35 Ω to 140 Ω. The active back-termination technique provides excellent matching with the output transmission lines while reducing the power dissipation in the output stage. The back-termination in the ADN2530 absorbs signal reflections from the TOSA end of the output transmission lines, enabling excellent optical eye quality to be achieved even when the TOSA end of the output transmission lines is significantly misterminated. The small package provides the optimum solution for compact modules where laser diodes are packaged in low pin count optical subassemblies.

The modulation and bias currents are programmable via the MSET and BSET control pins. By driving these pins with control voltages, the user has the flexibility to implement various average power and extinction ratio control schemes, including closed-loop control and look-up tables. The eye crosspoint in the output eye diagram is adjustable via the crosspoint adjust (CPA) control voltage input. The automatic laser shutdown (ALS) feature allows the user to turn on/off the bias and modulation currents by driving the ALS pin with the proper logic levels. The product is available in a space-saving 3 mm × 3 mm LFCSP specified from −40°C to +100°C.

Applications

10 Gb Ethernet optical transceivers
10G-BASE-LRM optical transceivers
8× and 10× Fibre Channel optical transceivers
XFP/X2/XENPAK/MSA 300 optical modules
SONET OC-192/SDH STM-64 optical transceivers

Features and Benefits

Up to 11.3 Gbps operation

−40°C to +100°C operation

Very low power: ISUPPLY = 65 mA

Typical 26 ps rise/fall times

Full back-termination of output transmission lines

Crosspoint adjust function

PECL-/CML-compatible data inputs

Bias current range: 2 mA to 25 mA

Differential modulation current range: 2.2 mA to 23 mA

Automatic laser shutdown (ALS)

3.3 V operation

Compact 3 mm × 3 mm LFCSP

Voltage-input control for bias and modulation currents

XFP-compliant bias current monitor

Optical

Laser Drivers

Data Sheets

Document	note
ADN2530: 11.3 Gbps Active Back-Termination, Differential VCSEL Driver Data Sheet (Rev. C)	PDF 457.49 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADN2530YCPZ-500R7 Production	16 ld LFCSP (3x3mm, 1.5mm exposed pad)	OTH 500	-40 to 100C	18.59	15.49	Y
ADN2530YCPZ-R2 Last Time Buy	16 ld LFCSP (3x3mm, 1.50mm exposed pad)	REEL 250	-40 to 100C	0	0	Y
ADN2530YCPZ-REEL7 Production	16 ld LFCSP (3x3mm, 1.5mm exposed pad)	REEL 1500	-40 to 100C	0	0	Y
ADN2530YCPZ-WP Last Time Buy	16 ld LFCSP (3x3mm, 1.5mm exposed pad)	REEL 50	-40 to 100C	0	0	Y

Evaluation Boards

Part Number	Description	Price	RoHS
EVAL-ADN2530-ANZ	Evaluation Board	350	Y

ADN2530: 11.3 Gbps Active Back-Termination, Differential VCSEL Driver Data Sheet (Rev. C) adn2530