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参数资料
| 型号： | 1417H5A |
| 英文描述： | NetLight 1417G5 and 1417H5-Type ATM/SONET/SDH Transceivers with Clock Recovery |
| 中文描述： | 网络之光公司1417G5和1417H5型的ATM / SONET / SDH的收发器时钟恢复 |
| 文件页数： | 6/12页 |
| 文件大小： | 149K |
| 代理商： | 1417H5A |
3
Agere Systems Inc.
Data Sheet
NetLight 1417G5 and 1417H5-Type
January 2000
ATM/SONET/SDH Transceivers with Clock Recovery
Transmitter
11
VCCT
Transmitter Power Supply.
NA
12
VEET
Transmitter Signal Ground.
NA
13
TDIS
Transmitter Disable.
LVTTL
14
TD+
Transmitter Data In.
PECL
15
TD–
Transmitter Data In Bar.
PECL
16
VEET
Transmitter Signal Ground.
NA
17
BMON(–)
Laser Diode Bias Current Monitor—Negative End. The laser bias current
is accessible as a dc-voltage by measuring the voltage developed across pins
17 and 18.
NA
18
BMON(+)
Laser Diode Bias Current Monitor—Positive End. See pin 17 description.
NA
19
PMON(–)
Laser Diode Optical Power Monitor—Negative End. The back-facet diode
monitor current is accessible as a dc-voltage by measuring the voltage devel-
oped across pins 19 and 20.
NA
20
PMON(+)
Laser Diode Optical Power Monitor—Positive End. See pin 19 description.
NA
Pin
Number
Symbol
Name/Description
Logic
Family
Electrostatic Discharge
Caution: This device is susceptible to damage as
a result of electrostatic discharge (ESD).
Take proper precautions during both
handling and testing. Follow
EIA stan-
dard
EIA-625.
Although protection circuitry is designed into the
device, take proper precautions to avoid exposure to
ESD. Agere Systems employs a human-body model
(HBM) for ESD-susceptibility testing and protection-
design evaluation. ESD voltage thresholds are depen-
dent on the critical parameters used to define the
model. A standard HBM (resistance = 1.5 k
, capaci-
tance = 100 pF) is widely used and, therefore, can be
used for comparison purposes. The HBM ESD thresh-
old established for the 1417G5 and 1417H5 transceiv-
ers is
±1000 V.
Application Information
The 1417 receiver section is a highly sensitive fiber-
optic receiver. Although the data outputs are digital
logic levels (PECL), the device should be thought of as
an analog component. When laying out system appli-
cation boards, the 1417 transceiver should receive the
same type of consideration one would give to a sensi-
tive analog component.
Printed-Wiring Board Layout Considerations
A fiber-optic receiver employs a very high-gain, wide-
bandwidth transimpedance amplifier. This amplifier
detects and amplifies signals that are only tens of nA in
amplitude when the receiver is operating near its sensi-
tivity limit. Any unwanted signal currents that couple
into the receiver circuitry cause a decrease in the
receiver's sensitivity and can also degrade the perfor-
mance of the receiver's signal detect (SD) circuit. To
minimize the coupling of unwanted noise into the
receiver, careful attention must be given to the printed-
wiring board.
At a minimum, a double-sided printed-wiring board
(PWB) with a large component-side ground plane
beneath the transceiver must be used. In applications
that include many other high-speed devices, a multi-
layer PWB is highly recommended. This permits the
placement of power and ground on separate layers,
which allows them to be isolated from the signal lines.
Multilayer construction also permits the routing of sen-
sitive signal traces away from high-level, high-speed
signal lines. To minimize the possibility of coupling
noise into the receiver section, high-level, high-speed
signals such as transmitter inputs and clock lines
should be routed as far away as possible from the
receiver pins.
Pin Information (continued)
Table 1. Transceiver Pin Descriptions (continued)
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相关代理商/技术参数 |
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|---|---|
| 1417H5-TYPE(NETLIGHT) | 制造商:未知厂家 制造商全称:未知厂家 功能描述:ATM/SONET/SDH Transceivers with Clock Recovery |
| 1417K4A | 制造商:NL 功能描述: |
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| 1417K5A | 制造商:AGERE 制造商全称:AGERE 功能描述:NetLight 1417K5A 2.5 Gbits/s 1300 nm Laser Transceiver with Clock and Data Recovery |
| 1417K6S | 制造商:AGERE 制造商全称:AGERE 功能描述:NetLight 1417K6S 2.5 Gbits/s 1300 nm Laser Transceiver |
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