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參數(shù)資料
| 型號： | M66515FP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | LASER-DIODE DRIVER/CONTROLLER |
| 中文描述： | 激光二極管驅(qū)動器/控制器 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 174K |
| 代理商： | M66515FP |
2
MITSUBISHI
DIGITAL ASSP
M66515FP
LASER-DIODE DRIVER/CONTROLLER
Description
Connect to cathode on semiconductor laser diode.
Connect to anode on monitoring photodiode.
Connect a load resistor between this pin and GND for the setting of current (I
SW
) to be
switched.
Connect a load resistor between this pin and GND for the setting of bias current (I
B
). Leave
this pin open if I
B
is not used.
Bias current (I
B
) is set by applying a voltage at this pin. Leave this pin open if I
B
is not
used.
If this pin is “L,” a current of I
SW
+ I
B
flows through laser diode; if “H,” current I
B
flows.
A load resistor is connected between pins 1RM and 2RM for conversion of current
generated by monitoring photodiode into changes in voltage.
If this pin is “H” all current source circuits are turned off.
Connect a laser current load resistor between this pin and Vcc.
If this pin is “L,” sampling (APC) occurs, if “H,” holding (switching).
Connect a holding capacitor between this pin and GND. Inside the M66515 this pin
connects to the output of the sample-hold circuit and the current source input for I
SW
.
Internal reference voltage (1.2 V typ.) output pin of M66515
A reference voltage is applied to this pin to operate the comparator in the sample-hold
circuit. Connect this pin to the Vref pin if the internal reference voltage of the M66515 is to
be used.
This pin is used to test the M66515 when shipped. Leave open.
Power supply to internal analog circuits. Connect to a positive power source (+5 V).
Power supply to internal digital circuits. connect to a positive power source (+5 V).
GND for internal analog circuits.
GND for internal digital circuits.
FUNCTIONS
The M66515 is a semiconductor laser-diode driver/controller.
Its functions are the driving and laser power control of a spe-
cific type (Mitsubishi’s N type laser) of semiconductor laser
diode, in which the anode of a semiconductor laser diode
(LD) is connected in stem structure to the cathode of a moni-
toring photodiode (PD).
The functions to drive LD and to control laser power are car-
ried out by connecting an external capacitor to the C
H
pin and
applying a reference voltage to the V
r
pin.
The PD current generated by LD illumination flows through
the resistor connected between 1RM and 2RM, thereby gen-
erating a potential difference (V
M
). V
M
is compared with the
voltage applied to the V
r
pin. If V
M
< V
r
, a constant current is
sourced through the C
H
pin so that the external capacitor is
charged. If V
M
> V
r,
a constant current sinks through the C
H
pin to discharge the external capacitor.
The above operation occurs when the S/H input is “L”
(sample). When the S/H input is “H,” the C
H
pin is maintained
at high impedance state (hold), irrespective of the state of V
M
,
V
r
, and DATA input.
The LD drive current is made up of the switching current, I
SW
,
which is controlled by the DATA input, and I
B
, which is the
bias current to LD independent of the state of the DATA input.
Pin
LD
PD
R
S
R
B
V
B
DATA
1RM, 2RM
ENB
RO
S/H
C
H
V
ref
V
r
TEST
V
CC
1
V
CC
2
GND1
GND2
PIN DESCRIPTIONS
Name
Laser current output
Monitoring diode input
Switching current
Set load output
Bias current
Set load output
Bias current setting
voltage input
Switching data input
For monitoring
Load input
Laser current enable input
Laser current load output
Sample hold control input
Holding capacitor load
input/output
Reference voltage output
Reference voltage input
Test pin
Power supply pin 1
Power supply pin 2
GND pin 1
GND pin 2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M66515FP#TC2J | 功能描述:IC LASR CTRLR 40MBPS 5.25V 20SOP RoHS:是 類別:集成電路 (IC) >> PMIC - 激光驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:60 系列:- 類型:激光二極管驅(qū)動器 數(shù)據(jù)速率:- 通道數(shù):4 電源電壓:3.3V 電流 - 電源:- 電流 - 調(diào)制:- 電流 - 偏置:- 工作溫度:0°C ~ 70°C 封裝/外殼:40-TQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN EP 包裝:托盤 安裝類型:表面貼裝 |
| M66515FP(#TC2J) | 制造商:Renesas Electronics Corporation 功能描述: |
| M66516FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:LASER-DIODE DRIVER/CONTROLLER |
| M6657 | 制造商:Tamura Corporation of America 功能描述: |
| M6658 | 制造商:Tamura Corporation of America 功能描述: |
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