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PDF CXB1577R Data sheet ( Hoja de datos )
| Número de pieza | CXB1577R | |
| Descripción | Post-Amplifier for Optical Fiber Communication Receiver | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXB1577R
Post-Amplifier for Optical Fiber Communication Receiver
Description
The CXB1577R achieves the 2R optical-fiber
communication receiver functions (Reshaping and
Regenerating) on a single chip. This IC is equipped
with the signal detection function, which is used to
enable TTL/ECL outputs. Also, the output disable
function performs the output shutdown.
32 pin LQFP (Plastic)
Features
• Output disable function (TTL input)
• Signal detection function (TTL/ECL output)
Applications
• SONET/SDH: 622.08Mbps
• Fibre Channel: 531.25Mbps
: 1.062Gbps
• Gigabit-Ethernet: 1.25Gbps
Absolute maximum Ratings
• Supply voltage
• Storage temperature
• Input voltage difference | VD – VD |
• SW input voltage
• ECL output current
• TTL output current (High level)
• TTL output current (Low level)
• D/DB input voltage
• ODIS input voltage
VCC – VEE
–0.3 to +6
V
Tstg
–65 to +150
°C
Vdif
0 to +2
V
Vi
VEE to VCC
V
IOQ/SD-ECL
–30 to 0
mA
IOH SD-TTL
–20 to 0
mA
IOL SD-TTL
0 to 20
mA
Vcc – 2 to Vcc
V
VEE – 0.5 to VEE +5.5 V
Recommended Operating Conditions
• Supply voltage
• Termination voltage (for data)
• Termination voltage (for alarm 1,alarm 2)
• Termination resistance (for data)
• Termination resistance (for alarm 1)
• Termination resistance (for alarm 2)
• Operating temperature
VCC – VEE
VCC – VTD
VTA
RTD
RTA1
RTA2
Ta
5 ± 0.25
1.8 to 2.2
VEE
46 to 56
240 to 300
460 to 560
0 to +70
V
V
V
Ω
Ω
Ω
°C
Structure
Bipolar silicon monolithic IC
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E98402-PS
1 page  
Typical pin
Pin
No.
Symbol voltage (V)
DC AC
21 CAP2
3.2
22 CAP3
3.2
23 N.C.
24 VEE4
25 VCC4
0
5
CXB1577R
Equivalent circuit
Description
21
80
10p
200
VCC2
5µA
VEE2
22
80
10p
200
VCC2
5µA
VEE2
VCC4
Connects a peak hold circuit
capacitor for alarm block.
470pF should be connected
to Vcc each.
CAP2 pin connects a peak
hold capacitor for alarm
level setting block.
CAP3 pin connects a peak
hold capacitor for limiting
amplifier signal.
No connected.
Negative power supply for TTL
output buffer.
Positive power supply for TTL
output buffer.
26 SD-TTL
0 or 3
26
40k
VEE4
Alarm signal TTL level output.
–5–
5 Page 
Application Circuit
CXB1577R
VCC4 25
TTL Output
SD-TTL
26
SDB-TTL
27
ECL Output
SD-ECL
28
SDB-ECL
29
51Ω
ECL Output
Q
30
51Ω QB
31
VTT
VCC – 2.0V
VCC3 32
470p 470p
VEE
REX1
24 23 22 21 20 19 18 17
peak hold
peak hold
∆V
16 VCC2
15 VEE1
VTT
D
14
51Ω
0.047µF
Signal Generator
51Ω VIN
DB
13
0.047µF
CAP1
12
CAP1B
11
VTT
VTT
1µF
51Ω
51Ω
10 N.C.
9 VCC1
123 45
TTL
Input
VEE
6 78
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for
any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
– 11 –
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet CXB1577R.PDF ] | |
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