S1724BDBA データシートの表示（PDF） - Agere -> LSI Corporation
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S1724BDBA
Agere -> LSI Corporation
S1724BDBA Datasheet PDF : 12 Pages
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Data Sheet
July 1999
Block Diagram
Optical Amplifier Platform, 1724-Type
Erbium-Doped Fiber Amplifier (S and V Series)
OPTICAL
INPUT
SIGNAL
INPUT TAP
OPTICAL GAIN
OUTPUT TAP
OPTICAL
OUTPUT
SIGNAL
PD #1
INPUT POWER
MONITOR
PD #2
OUTPUT POWER
MONITOR
MICROCONTROLLER
Figure 1. 1724-Type EDFA Block Diagram
1-904 (C)
Pin Information
Table 1. Pin Descriptions for a Microcontrolled (Full) Amplifier
Pin
Description
Pin
Description
1
5.0 V (±0.25 V)
2
5.0 V (±0.25 V)
3
5.0 V (±0.25 V)
4
5.0 V (±0.25 V)
5
Reserved1
6
Reserved1
7
EDFA Temperature Alarm
8
Loss of Output Power Alarm2
9
Pumps Bias Alarm3
10
Pumps Temperature Alarm4
11
EDFA Shutdown Override5
12
5.0 V (±0.25 V)
13
GND
14
GND
15
GND
16
GND
17
GND
18
RS-232 OUT (TTL)
19
Loss of Input Power Alarm6
20
Reserved1
21
Amplifier Disable Input7
22
RS-232 IN (TTL)
23
Reserved1
24
5.0 V (±0.25 V)
25
GND
—
—
1. Do not connect to reserved pins.
2. Normal = TTL low, alarm = TTL high if the output power falls 2 dB below the minimum value.
3. Normal = TTL low, alarm = TTL high if pump bias exceeds 95% of its end-of-life value.
4. Normal = TTL low, alarm = TTL high if pump temperature exceeds 35 °C.
5. The EDFA is equipped with an optical transient suppression feature when this pin is tied to GND. The EDFA will turn all pumps off, if the
input power is too low. Tying this pin to 5 V will disable this feature; however, damage to the optical connectors and components may occur
if the amplifier is turned on without the presence of an optical signal.
6. Normal = TTL low, alarm = TTL high if input power is less than 2 dB below minimum PIN.
7. Amplifier enable (all pumps are on) = TTL low, amplifier disable (all pumps are off) = TTL high.
Agere Systems Inc.
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