参数资料
型号: LTC5100EUF#TRPBF
厂商: Linear Technology
文件页数: 35/52页
文件大小: 0K
描述: IC DRIVER VCSEL 3.2GBPS 16QFN
标准包装: 2,500
类型: 激光二极管驱动器
数据速率: 3.2Gbps
通道数: 1
电源电压: 3.135 V ~ 3.465 V
电流 - 电源: 54mA
电流 - 调制: 12mA
工作温度: -40°C ~ 85°C
封装/外壳: 16-WQFN 裸露焊盘
供应商设备封装: 16-QFN(4x4)
包装: 带卷 (TR)
安装类型: 表面贴装
LTC5100
REGISTER DEFI ITIO S
Table 8. Register: SYS_CONFIG—System Configuration (I 2 C Command Code 0x10)
REGISTER
RESET VALUE
.BITFIELD
.Reserved
.Cml_en
BIT
15:8
7
(BIN)
0
FUNCTION AND VALUES
Current Mode Logic Enable
0: Floating Differential Input Termination: 100 ? Across IN + and IN –
1: CML Compatible Input Termination: 50 ? from IN + to V DD(HS) and from IN – to V DD(HS)
.Md_polarity
6
0
Monitor Diode Polarity
0: Cathode Connected to the MD Pin, Sinking Current from the Pin
1: Anode Connected to the MD Pin, Sourcing Current Into the Pin
.Ext_temp_en
5
0
External Temperature Enable
Selects the Source of Temperature Measurements for Temperature Compensation.
0: Internal Temperature Sensor
1: Externally Supplied Through the Serial Interface
.Power_down_en
4
1
Power Down Enable
Allow Power Reduction When the Transmitter is Disabled.
0: No Power Reduction When the Transmitter is Disabled.
1: Reduce Power Consumption When Transmitter is Disabled by Turning Off the High Speed Amplifiers.
.Apc_en
3
0
Automatic Power Control Enable
Select the Means of Controlling the Laser Bias Current.
0: Constant Current Control
1: Automatic Power Control Using Feedback from the Monitor Diode
.En_polarity
2
0
EN Pin Polarity
Set the Input Polarity of the EN Pin.
0: Active Low: A Logic Low Input Level Enables the Transmitter.
1: Active High: A Logic High Input Level Enables the Transmitter.
Note: In order to Enable the Transmitter, Both the EN Pin and Soft_en Bit Must be Asserted.
.Soft_en
1
0
Soft Transmitter Enable
Enables Transmitter Through the Serial Interface.
0: Disable the Transmitter
1: Enable the Transmitter (if the EN Pin is Active)
Note: In order to Enable the Transmitter, Both the EN Pin and Soft_en Bit Must be Asserted.
.Operating_mode
0
0
Digital Operating Control Mode
Select Whether the LTC5100 Operates Autonomously or Under External Control.
0: Standalone Operation: Configuration Parameters are Loaded from an External EEPROM at Power Up.
1: Externally Controlled Operation: Configuration Parameters are Set by an External Microprocessor or
Test Computer.
sn5100 5100fs
35
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