参数资料
型号: LTC5100EUF#TRPBF
厂商: Linear Technology
文件页数: 46/52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 29. Register: IM_DAC—Modulation Current DAC (I 2 C Command Code 0x02)
REGISTER
RESET VALUE
.BITFIELD
.Reserved
.Im_dac
BIT
15:10
9
8
(BIN)
0
0
FUNCTION AND VALUES
DAC Setting for the Peak-to-Peak Modulation Current (the Combined MODA and MODB Pin Currents)
Read Access to This DAC is Always Available. Write Access is Only Valid if LPC_en = 0.
7
6
0
0
I M =
Im_dac
1024
? (Im_ rng + 1 ) ? 9 mA ( typical )
5
4
3
2
1
0
0
0
0
0
0
0
Table 30. Register: PWR_LIMIT_DAC—Optical Power Limit DAC—Read Only (I 2 C Command Code 0x03)
REGISTER
RESET VALUE
.BITFIELD
.Reserved
.pwr_limit_dac
Read Only
BIT
15:7
6
5
4
3
2
1
0
(BIN)
0
0
0
0
0
0
0
FUNCTION AND VALUES
DAC Setting for the Over and Underpower Fault Detection Comparator (Read Only)
This Bit Field Has Different Functions Depending on Apc_en.
Constant Current Control (CCC) Mode (Apc_en = 0): Pwr_limit_dac Has No Function in This Mode.
Its Contents are Undefined.
Automatic Power Control (APC) Mode (Apc_en = 1): Pwr_limit_dac Tracks the Value of the Monitor
Diode Current. The Laser Power Controller Continuously Updates the PWR_LIMIT_DAC with the
Most Recent ADC Reading of Imd. Reading the DAC Will Return the Value of Imd_adc Shifted Right
by Three Bits.
sn5100 5100fs
46
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