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| 型號(hào)： | HDMP-1514 |
| 英文描述： | Fibre Channel Receiver Chipset(光纖通道接收芯片) |
| 中文描述： | 光纖信道接收芯片（光纖通道接收芯片） |
| 文件頁(yè)數(shù)： | 4/26頁(yè) |
| 文件大?。?/td> | 284K |
| 代理商： | HDMP-1514 |
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4
MUX
± SI
11
12
V
CC
_LZ1
V
CC
_LZ
23
24
GND_LZ
25
26
16
-LZON
30
LZPWRON
36
LASER ON
ERROR
DETECTOR
FAULT
29
INTERNAL
DATA
STREAM
INPUT
SELECT
AC AMP
DISABLE
WINDOW
DETECTOR
BANDGAP
REFERENCE
BANDGAP
DETECTOR
AC AMP
+
–
14
DC
OP-AMP
+
–
27
15
28
22
19
20
21
17
5
V
CC
_LZAC
0.1 μF
0.1 μF
V
CC
+LZOUT
-LZOUT
LZCSE
0.1 μF
25
5
POT 2
50
0.1 μF
V
CC
0.1 μF
301
2.2
8
P1 (
β
>= 100)
EXTERNAL
CONTROL
P2
25
0.1 μF
25
TRANSMISSION LINE
POT 1 5 K
LZMDF
LZBTP
0.1 μF
V
CC
-LZBG
LZDC
10 nF
10 nF
Tx CHIP BOUNDARY
LZTC
Figure 3. Laser Driver Block Diagram and External Circuitry.
described in more detail in the
laser driver operation section
below.
Transmitter Laser Driver
Operation
The block diagram of the HDMP-
1512, Tx, laser driver circuitry is
shown in Figure 3. The laser
driver is enabled by setting
-LZON (pin 30) low and
LZPWRON (pin 36) high. The
circuitry in Figure 3, shown
outside the chip boundary (dotted
box), illustrates the external
components required to complete
a typical laser driver connection.
The input data source to the laser
driver is user selected from either
the internally generated data
stream, or an externally supplied
high speed data stream. The
externally supplied data stream is
applied to the high speed input
±
SI pins. The user selects
between these two data sources
through the proper settings of
pins TS1, TS2, and EWRAP (pins
76, 75, and 71). The possible
combinations of active inputs and
outputs are shown in the Input/
Output Select Table. The chosen
high speed input is then modu-
lated onto the laser by the ac
amplifier. The external poten-
tiometer, Pot 2, shown connected
to pin LZCSE (# 14) is used to
adjust the laser modulation
depth. The laser driver output is
at pins 19 and 20,
±
LZOUT.
Laser diode dc bias control is
provided through the LZDC
(# 21) pin. Adjustment of Pot 1
sets the nominal dc bias desired
for the laser diode. The
equivalent output circuit of LZDC
is shown in Figure 4. Laser diode
fault and safety control is imple-
mented through the combination
V
CC
_LZ
LZDC
400
54
Figure 4. LZDC Equivalent Output
Circuit (Tx pin # 21).
of the window detector, error
detector, Laser On pin # 30
(-LZON), laser monitor diode
feedback pin # 22 (LZMDF), and
the op-amp dc bias control
circuit. The window detector
monitors the voltage on pin
LZMDF. If this voltage goes out
of range by more than
±
10%
from the nominal setting, the
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HDMP-1526 | Transistor Diode Kit;Contents Of Kit:Transistor/Diode Kit |
| HDMP-1536 | Fibre Channel Transceiver Chip |
| HDMP-1546 | Fibre Channel Transceiver Chip |
| HDMP-1546A | Fibre Channel Transceiver Chip(光纖通道收發(fā)器芯片) |
| HDMP-1536A | Fibre Channel Transceiver Chip(光纖通道收發(fā)器芯片) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HDMP1526 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Optoelectronic |
| HDMP-1526 | 制造商:AGILENT 制造商全稱(chēng):AGILENT 功能描述:Fibre Channel Transceiver Chip |
| HDMP-1536 | 制造商:AGILENT 制造商全稱(chēng):AGILENT 功能描述:Fibre Channel Transceiver Chip |
| HDMP-1536A | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Fiber-Optic Transceiver |
| HDMP-1546 | 制造商:AGILENT 制造商全稱(chēng):AGILENT 功能描述:Fibre Channel Transceiver Chip |
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