SA5225D 查看數據表（PDF） - Philips Electronics
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SA5225D Datasheet PDF : 10 Pages
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Philips Semiconductors
Fiber optic postamplifier
Product specification
SA5225
DESCRIPTION
The SA5225 is a high-gain limiting amplifier that is designed to
process signals from fiber optic preamplifiers. Capable of operating
at 125Mb/s, the chip has input signal level-detection with a
user-adjustable threshold. The DATA and LEVEL-DETECT outputs
are differential for optimum noise margin and ease of use. Also
available is the SA5224 which is optimized for FDDI applications.
FEATURES
• Wideband operation: 1.0kHz to 120MHz typical
• Applicable in 155Mb/s OC3/SONET receivers
• Operation with single +5V or –5.2V supply
• Differential 10k ECL outputs
• Programmable input signal level-detection
• Fully differential for excellent PSRR to 1GHz
APPLICATIONS
• Data communication in noisy industrial environments
• LANs
ORDERING INFORMATION
DESCRIPTION
16-Pin Plastic Small Outline (SO) Package
PIN DESCRIPTION
D Package
CAZN 1
CAZP 2
GNDA 3
DIN 4
DIN 5
VCCA 6
CF 7
JAM 8
16 VSET
15 VREF
14 VCCE
13 DOUT
12 DOUT
11 GNDE
10 ST
9 ST
SD00374
Figure 1. Pin Configuration
TEMPERATURE RANGE
–40 to +85°C
ORDER CODE
SA5225D
DWG #
SOT109-1
BLOCK DIAGRAM
VCCA
(6)
CAZP CAZN
(2) (1)
VCCE
(16)
DIN (4)
DIN (5)
VREF(15)
VSET (16)
LIMITING
AMPLIFIER
ECL
BUFFER
JAM
BUFFER
REFERENCE
LEVEL
DETECTOR
SD
BUFFER
(13) DOUT
(12) DOUT
(8) JAM
(9) ST
(10) ST
(3)
GNDA
(7)
CF
Figure 2. Block Diagram
(11)
GNDE
SD00375
1998 Oct 07
2
853-1595 20141
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