ADN2870(RevA) Просмотр технического описания (PDF) - Analog Devices
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ADN2870 Datasheet PDF : 20 Pages
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ADN2870
18
19
GND
VCC
IMODP
IMODN
GND
IBIAS
24
1
ADN2870
13
12
ALS
DATAN
DATAP
GND
PAVCAP
ERCAP
7
6
NOTES
1. THE LFCSP PACKAGE HAS AN EXPOSED PADDLE
THAT MUST BE CONNECTED TO GROUND.
Figure 5. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
1
CCBIAS
2
PAVSET
3
GND
4
VCC
5
PAVREF
6
RPAV
7
ERCAP
8
PAVCAP
9
GND
10
DATAP
11
DATAN
12
ALS
13
ERSET
14
IMMON
15
ERREF
16
VCC
17
IBMON
18
FAIL
19
GND
20
VCC
21
IMODP
22
IMODN
23
GND
24
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 (Current Sink), Connect to Laser Diode
Modulation Current Negative Output (Current Sink)
Supply Ground
Laser Diode Bias (Current Sink to Ground)
Rev. A | Page 7 of 20
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