參數(shù)資料
型號(hào)： SML2120
廠商： Summit Microelectronics, Inc.
英文描述： Programmable Adaptive Laser Power Controller with Dual Lookup Tables
中文描述： 可編程控制器自適應(yīng)激光功率雙查找表
文件頁(yè)數(shù)： 5/32頁(yè)
文件大?。?/td> 1196K
代理商： SML2120
SML2120
Pin Descriptions
Summit Microelectronics
2066 6.3 1/22/04
5
12
O
VBRIDGE
Connection to an external Full-Bridge Sensor when used with the Thermistor pin.
Two of the full-bridge resistors are internal. See the Bridge Circuit Diagram in
Figure 1 and 3. Voltage level is 0.2V with respect to VSS.
13
I/O
ILU0
Current output resulting from Lookup Table 0. User-programmable to either sink
(to VSS) or source (to VDD) up to 2.5mA.
14
I/O
ILU1
Current output resulting from Lookup Table 1. User-programmable to either sink
(to VSS) or source (to VDD) up to 2.5mA.
15
PWR
VDD
VDD is the positive rail for most internal functions.
16
I
C2
Place a capacitor (C
INT
) between C1 and C2 to increase the time constant for the
APC integrator.
17
I
C1
18
I
MPD
Monitor Photo Diode anode input. Connect a resistor between MPD and C1 to
work in conjunction with C
INT
to establish the integrator time constant.
19
I
VBURST
In burst mode, this input supplies a ballast current that allows the SML2120 to
quickly restart when ENA# is asserted.
20
I
BIAS
Supplies the main laser current as controlled by the APC circuit; capable of
sinking up to 100mA to VSS.
21
PWR
VSS
VSS must be tied to the lowest system voltage potential.
22
I/O
VAPC
APC Override pin.
23
I
EXT_TEMP
This input can be configured to sense either a voltage or current generated from
an external temperature monitoring device.
24
PWR
VDD
VDD is the positive rail for most internal functions.
25
PWR
VHI
In dual-voltage rail systems, VHI is tied to the system logic high potential. It is the
logic high reference for all pins marked with an asterisk (*).
26
O
POWERMON
*
Analog output voltage indicating the state of the Monitor Photo Diode (MPD)
input.
27
O
TEMPMON
*
Analog output voltage proportional to the temperature as sensed by the
EXT_TEMP or THERMISTOR input.
28
O
BIASMON
*
Analog output voltage proportional to BIAS current.
* See VLOW and VHI pin descriptions.
Pin Number Pin Type
Pin Name
Description
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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SML-212DTT86S2 制造商:ROHM Semiconductor 功能描述:LED SMD 0805 HB ORG 制造商:ROHM Semiconductor 功能描述:LED, SMD, 0805, HB ORG 制造商:ROHM Semiconductor 功能描述:LED, ORANGE, 1.25MM X 1.4MM, 63MCD, 608NM; Bulb Size:1.25mm x 1.4mm; LED Color:Orange; Luminous Intensity:63mcd; Forward Current If:20mA; Forward Voltage:2.05V; LED Mounting:SMD; Lens Shape:Rectangular; Wavelength Typ:608nm ;RoHS Compliant: Yes
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