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ADN2873 Datasheet(PDF) 7 Page - Analog Devices

Part # ADN2873
Description  3.3 V, 50 Mbps to 4.25 Gbps, Single-Loop, Laser Diode Driver
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADN2873 Datasheet(HTML) 7 Page - Analog Devices

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ADN2873
Rev. 0 | Page 7 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NOTES
1. NC = NO CONNECT.
2. THE LFCSP HAS AN EXPOSED PADDLE THAT MUST BE CONNECTED
TO GND.
PIN 1
INDICATOR
1
CCBIAS
2
PAVSET
3
GND
4
VCC
5
PAVREF
6
RPAV
15 ERREF
16 VCC
17 IBMON
18 FAIL
14 IMMON
13 ERSET
TOP VIEW
(Not to Scale)
ADN2873
Figure 6. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
CCBIAS
Not Used (Internally Connected to VCC)
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
NC
No Connect
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)


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