Datasheet

ADN2872
Rev. 0 | Page 6 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
GND
1924
181
12
7
136
FAIL
IBMON
ERREF
IMMON
ERSET
VCC
CCBIAS
PAVSET
VCC
PAVREF
RPAV
GND
VCC IMODP IMODN GND IBIAS
ALS
DATAN
DATAP
GND
ADN2872
TOP VIEW
(Not to Scale)
PAVCAP
ERCAP
NOTES
1. THE LFCSP PACKAGE HAS AN EXPOSED PADDLE THAT
MUST BE CONNECTED TO GROUND.
08013-004
Figure 5. Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
1 CCBIAS Control Output Current.
2 PAVSET Average Optical Power Set Pin.
3 GND Supply Ground.
4 VCC Supply Voltage.
5 PAVREF Reference Voltage Input for Average Optical Power Control.
6 RPAV Average Power Resistor when Using PAVREF.
7 ERCAP Extinction Ratio Loop Capacitor.
8 PAVCAP Average Power Loop Capacitor.
9 GND Supply Ground.
10 DATAP Data, Positive Differential Input.
11 DATAN Data, Negative Differential Input.
12 ALS Automatic Laser Shutdown.
13 ERSET Extinction Ratio Set Pin.
14 IMMON Modulation Current Monitor Current Source.
15 ERREF Reference Voltage Input for Extinction Ratio Control.
16 VCC Supply Voltage.
17 IBMON Bias Current Monitor Current Source.
18 FAIL FAIL Alarm Output.
19 GND Supply Ground.
20 VCC Supply Voltage.
21 IMODP Modulation Current Positive Output (Current Sink), Connect to Laser Diode.
22 IMODN Modulation Current Negative Output (Current Sink).
23 GND Supply Ground.
24 IBIAS Laser Diode Bias (Current Sink to Ground).
25 (EPAD) Exposed Paddle (EPAD) The LFCSP package has an exposed paddle that must be connected to ground.