ADN2870 Analog Devices, Inc., ADN2870 Datasheet - Page 7

• Manufacturer Part Number: ADN2870
• Description: 3.3 V Dual-loop, 50 Mbps To 3.3 Gbps Laser Diode Driver
• Manufacturer: Analog Devices, Inc.

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 4. Pin Fuction Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Note: The LFCSP package has an exposed paddle that must be connected to ground.
Mnemonic
CCBIAS
PAVSET
GND
VCC
PAVREF
RPAV
ERCAP
PAVCAP
GND
DATAP
DATAN
ALS
ERSET
IMMON
ERREF
VCC
IBMON
FAIL
GND
VCC
IMODP
IMODN
GND
IBIAS
Description
Control Output Current
Average Optical Power Set Pin
Supply Ground
Supply Voltage
Reference Voltage Input for Average Optical Power Control
Average Power Resistor when Using PAVREF
Extinction Ratio Loop Capacitor
Average Power Loop Capacitor
Supply Ground
Data, Positive Differential Input
Data, Negative Differential Input
Automatic Laser Shutdown
Extinction Ratio Set Pin
Modulation Current Monitor Current Source
Reference Voltage Input for Extinction Ratio Control
Supply Voltage
Bias Current Monitor Current Source
FAIL Alarm Output
Supply Ground
Supply Voltage
Modulation Current Positive Output, Connect to Laser Diode
Modulation Current Negative Output
Supply Ground
Laser Diode Bias (Current Sink to Ground)
IMODN
IMODP
IBIAS
GND
GND
VCC
19
24
18
1
Figure 5. Pin Configuration
Rev. 0 | Page 7 of 20
ADN2870
13
6
12
ALS
DATAN
DATAP
GND
PAVCAP
ERCAP
7
ADN2870