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参数资料
| 型号： | ADN2848ACPZ-32-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/12页 |
| 文件大小： | 0K |
| 描述： | IC LASER DRIVER 1.25GBPS 32LFCSP |
| 标准包装： | 1,500 |
| 类型： | 激光二极管驱动器（光纤） |
| 数据速率： | 1.25Gbps |
| 通道数： | 1 |
| 电源电压： | 3 V ~ 3.6 V |
| 电流 - 电源： | 50mA |
| 电流 - 调制： | 80mA |
| 电流 - 偏置： | 100mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 32-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 32-LFCSP-VQ（5x5） |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
ADN2848
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Data Sheet
LBWSET
ASET
ERSET
PSET
IMPD
IMPDMON
GND4
V CC 4
1
2
3
4
5
6
7
8
PIN 1
INDICATOR
ADN2848
TOP VIEW
(Not to Scale)
24 IBMON
23 IMMON
22 GND3
21 V CC 3
20 ALS
19 FAIL
18 DEGRADE
17 CLKSEL
NOTES
1. THE EXPOSED PAD ON THE BOTTOM OF THE PACKAGE
MUST BE CONNECTED TO THE DEVICE GND.
Figure 3. Pin Configuration
Table 3. Pin Function 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
25
26
27
28
29, 30
31
32
EP
Mnemonic
LBWSET
ASET
ERSET
PSET
IMPD
IMPDMON
GND4
V CC 4
ERCAP
PAVCAP
V CC 1
DATAN
DATAP
GND1
CLKP
CLKN
CLKSEL
DEGRADE
FAIL
ALS
V CC 3
GND3
IMMON
IBMON
V CC 2
IMODN
GND2
IMODP
GND2
I BIAS
CCBIAS
EPAD
Description
Loop Bandwidth Select.
Alarm Threshold Set Pin.
Extinction Ratio Set Pin.
Average Optical Power Set Pin.
Monitor Photodiode Input.
Mirrored Current from Monitor Photodiode —Current Source.
Supply Ground.
Supply Voltage.
Extinction Ratio Loop Capacitor.
Average Power Loop Capacitor.
Supply Voltage.
Data Negative Differential Terminal.
Data Positive Differential Terminal.
Supply Ground.
Data Clock Positive Differential Terminal. This pin is used if CLKSEL = V CC .
Data Clock Negative Differential Terminal. This pin is used if CLKSEL = V CC .
Clock Select (Active = V CC ). This pin is used if data is clocked into chip.
DEGRADE Alarm Output.
FAIL Alarm Output.
Automatic Laser Shutdown.
Supply Voltage.
Supply Ground.
Modulation Current Mirror Output—Current Source.
Bias Current Mirror Output—Current Source.
Supply Voltage.
Modulation Current Negative Output. Connect this pin via a matching resistor to V CC .
Supply Ground.
Modulation Current Positive Output. Connect this pin to the laser diode.
Supply Ground.
Laser Diode Bias Current—Current Sink.
Connected to Vcc When DC-Coupled to Laser Diode; Connected to I BIAS When AC-Coupled to Laser
Diode —Current Sink.
Exposed Pad. The exposed pad on the bottom of the package must be connected to the device GND.
Rev. B | Page 6 of 12
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