參數(shù)資料
型號(hào)： MAX3299CUE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 其它接口
英文描述： ER 8C 8#16 PIN PLUG
中文描述： SPECIALTY INTERFACE CIRCUIT, DSO16
封裝： TSSOP-16
文件頁數(shù)： 13/28頁
文件大?。?/td> 1446K
代理商： MAX3299CUE
M
3.0V to 5.5V, 1.25Gbps/2.5Gbps
LAN Laser Drivers
______________________________________________________________________________________
13
with photodiode. The POL and
POL
inputs determine
the laser pinning (common cathode, common anode)
and affect the smooth-start circuits (Table 4).
Common Cathode with Photodiode
(Optical Feedback)
In the common cathode with photodiode configuration,
a servo control loop is formed by external PNP Q1, the
laser diode, the monitor diode, R
SET
, and the power-
control amplifier (Figure 9). The voltage at MD is stabi-
lized to 1.7V. The monitor photodiode current (I
D
) is set
by (V
REF
- V
MD
) / R
SET
= 0.95 / R
SET
. Determine the
desired monitor current (I
D
), then select R
SET
= 0.95 / I
D
.
The APC loop is compensated by C
BIASDRV
. A capacitor
must be placed from BIASDRV to V
CC
to ensure low-
noise operation and to reject power-supply noise. The
time constant governs how quickly the laser bias current
reacts to a change in the average total laser current
(I
BIASDRV
+ I
MOD
). A capacitance of 0.1μF is sufficient
to obtain a loop time constant in excess of 1μs, provid-
ed that R
DEG
is chosen appropriately. Resistor R
DEG
might be necessary to ensure the APC loop’s stability
when low bias currents are desired.
The voltage across R
DEG
should not be larger than
250mV at maximum bias current.
The discrete components used with the common cath-
ode with photodiode configuration are:
R
SET
= 0.95 / I
D
C
BIASDRV
= 0.1μF (typ)
R
DEG
= 0.25 / I
BIAS(MAX)
POL
DESCRIPTION
MAX3286/MAX3296
VCC
Common cathode with
photodiode
DEVICE
Table 4. POL Pin Setup for Each Laser Configuration Type
POL
GND
LASER PINNING
MAX3287/MAX3297
—
—
MAX3286/MAX3296
VCC
Common cathode without
photodiode
MAX3288/MAX3298
—
GND
—
MAX3286/MAX3296
GND
Common anode with
photodiode
MAX3289/MAX3299
—
VCC
—
MAX3286/MAX3296
VCC
GND
VCC
GND
Not allowed; fault occurs
—
MAX3286/MAX3296
Not allowed; fault occurs
—
V
CC
1000
1
1
100
1000
10
R
MOD
(k
)
R
T
)
10
3500ppm
3000ppm
2000ppm
2500ppm
1000ppm
1500ppm
500ppm
5mA
10mA
15mA
20mA
25mA
30mA
R
L
= 25
Figure 8a. R
TC
vs. R
MOD
for Various Conditions
0
10
5
20
15
35
30
25
40
0
4
2
6
8
10
12
14
R
MOD
(k
)
L
M
)
NOTE: R
TC
= OPEN
25
LOAD
10
LOAD
50
LOAD
Figure 8b. Laser-Modulation Current vs. R
MOD
相關(guān)PDF資料
PDF描述
MAX3286CHJ 3.0V to 5.5V, 1.25Gbps/2.5Gbps LAN Laser Drivers
MAX3296CHJ 3.0V to 5.5V, 1.25Gbps/2.5Gbps LAN Laser Drivers
MAX329CJE Ultra-Low Leakage Monolithic CMOS Analog Multiplexers
MAX329EJE Ultra-Low Leakage Monolithic CMOS Analog Multiplexers
MAX329CPE Ultra-Low Leakage Monolithic CMOS Analog Multiplexers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3299CUE+ 功能描述:激光驅(qū)動(dòng)器 3.0V to 5.5V 1.25Gbps/2.5Gbps LAN 激光驅(qū)動(dòng)器 RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube
MAX3299CUE+T 功能描述:激光驅(qū)動(dòng)器 2.5Gbps LAN Laser Driver for Common Anode Lasers using Photodiode for Automatic power cntl RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube
MAX3299CUE-T 功能描述:激光驅(qū)動(dòng)器 2.5Gbps LAN Laser Driver for Common Anode Lasers using Photodiode for Automatic power cntl RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube
MAX329C/D 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX329C/D DIE 制造商:Maxim Integrated Products 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*