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參數(shù)資料
| 型號： | MAX3668EHJ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 其它接口 |
| 英文描述： | +3.3V, 622Mbps SDH/SONET Laser Driver with Automatic Power Control |
| 中文描述： | SPECIALTY INTERFACE CIRCUIT, PQFP32 |
| 封裝： | 5 X 5 MM, 1 MM HEIGHT, MS-026AAA-HD, TQFP-32 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大小： | 435K |
| 代理商： | MAX3668EHJ |
M
+3.3V, 622Mbps SDH/SONET
Laser Driver with Automatic Power Control
_______________________________________________________________________________________
5
1000
0.1
1.4
1.8
1.6
2.2
2.6
AVAILABLE BIAS CURRENT
vs. MAXIMUM BIAS SET RESISTOR
1
10
100
M
R
BIAS
(k
)
B
2.0
2.4
V
CC
= +3.3V
V
CC
= +3.3V, + 5V
CLOSED-LOOP OPERATION
V
CC
= +5V
0
5
15
10
20
25
-25
MODULATION DIODE CURRENT STABILITY (ppm/
°
C)
155
65
245
335
425
515
DISTRIBUTION OF MODULATION CURRENT
STABILITY (WORST CASE)
M
P
T
A
= -40
°
C TO +85
°
C
I
MOD
= 5mA
0
5
15
10
20
25
-52
-88
20
92
160
DISTRIBUTION OF MONITOR DIODE CURRENT
STABILITY (WORST CASE)
M
MONITOR DIODE CURRENT STABILITY (ppm/
°
C)
Pin Description
P
T
A
= -40
°
C TO +85
°
C
I
MD
= 18
μ
A
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
NAME
FUNCTION
1, 2, 6, 15,
17, 20, 24
3
4
5, 7, 8, 10,
14, 21, 22, 30
V
CC
Positive Supply Voltage
29
APCSET
APC Set Resistor. A resistor connected from this pad to ground sets the desired average opti-
cal power. The resulting current is equal to the desired DC monitor diode current. Connect a
100k
resistor from this pad to ground if APC is not used.
Modulation Set Resistor. A resistor from this pad to ground sets the laser modulation current.
PIN
DATA+
DATA-
Positive PECL Data Input
Negative PECL Data Input
32
BIASMAX
Maximum Bias Set Resistor. A resistor from this pad to ground sets the maximum laser bias
current. The APC function can subtract from this maximum value but cannot add to it. This
resistor controls the bias-current level when the APC loop is not used.
31
MODSET
GND
Ground
12, 13, 26,
27, 28
16
N.C.
No Connection. Leave unconnected.
11
FAIL
TTL Output. Indicates APC failure when low. Internally pulled high through a 6k
resistor.
9
ENABLE
TTL/CMOS Enable Input. High for normal operation, low to disable laser bias and modulation
currents. Internally pulled high.
BIAS
Laser Bias Current Output. Isolate from laser with a ferrite bead.
Positive Modulation Current Output. I
MOD
flows into this pad when the input signal is high.
Connect this pad to AC coupling network.
19
OUT-
Negative Modulation Current Output. I
MOD
flows into this pad when the input signal is low.
Connect this pad to V
CC
through a 6.3
resistor.
Monitor Photodiode Connection. Connect this pad to the monitor photodiode anode. A capaci-
tor to ground is required to filter high-speed AC monitor photocurrent.
18
OUT+
23
MD
25
CAPC
APC Compensation Capacitor. A 0.1μF capacitor connected from this pad to ground controls
the dominant pole of the automatic power control (APC) feedback loop.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3668EHJ+ | 功能描述:激光驅(qū)動器 3.3V 622Mbps SDH/SONET 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 |
| MAX3668EHJ+T | 功能描述:激光驅(qū)動器 3.3V 622Mbps SDH/SONET 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 |
| MAX3668EHJ-T | 功能描述:激光驅(qū)動器 3.3V 622Mbps SDH/SONET 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 |
| MAX3668EVKIT | 功能描述:激光驅(qū)動器 Evaluation Kit for the MAX3668 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 |
| MAX3669E/D | 功能描述:激光驅(qū)動器 DICE SALES DICE12 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 |
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