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SA5214

Philips
Part Number SA5214
Manufacturer Philips
Description Postamplifier with link status indicator
Published May 18, 2005
Detailed Description INTEGRATED CIRCUITS SA5214 Postamplifier with link status indicator Product specification Replaces datasheet NE/SA5214 ...
Datasheet PDF File SA5214 PDF File

SA5214
SA5214

Overview
INTEGRATED CIRCUITS SA5214 Postamplifier with link status indicator Product specification Replaces datasheet NE/SA5214 of 1995 Apr 26 IC19 Data Handbook 1998 Oct 07 Philips Semiconductors Philips Semiconductors Product specification Postamplifier with link status indicator SA5214 DESCRIPTION The SA5214 is a 75MHz postamplifier system designed to accept low level high-speed signals.
These signals are converted into a TTL level at the output.
The SA5214 can be DC coupled with the previous transimpedance stage using SA5210, SA5211 or SA5212 transimpedance amplifiers.
This “system on a chip” features an auto-zeroed first stage with noise shaping, a symmetrical limiting second stage, and a matched rise/fall time TTL output buffer.
The system is user-configurable to provide noise filtering, adjustable input thresholds and hysteresis.
The threshold capability allows the user to maximize signal-to-noise ratio, insuring a low Bit Error Rate (BER).
An Auto-Zero loop can be used to minimize the number of external coupling capacitors to one.
A signal absent flag indicates when signals are below threshold.
Additionally, the low signal condition forces the overall TTL output to a logical Low level.
User interaction with this “jamming” system is available.
The SA5214 is packaged in a standard 20-pin surface-mount package and typically consumes 42mA from a standard 5V supply.
The SA5214 is designed as a companion to the SA5211/5212 transimpedance amplifiers.
These differential preamplifiers may be directly coupled to the post-amplifier inputs.
The SA5212/5214 or SA5211/5214 combinations convert nanoamps of photodetector current into standard digital TTL levels.
PIN CONFIGURATION D1 Package LED 1 20 IN1B 19 IN1A 18 CAZP 17 CAZN 16 OUT 1B 15 IN2B 14 OUT 1A 13 IN2A 12 RHYST 11 R PKDET CPKDET 2 THRESH 3 GNDA 4 FLAG 5 JAM 6 VCCD 7 VCCA 8 GNDD 9 VOUT 10 TOP VIEW NOTE: 1.
SOL – Released in large SO package only.
SD00349 Figure 1.
Pin Configuration FEATURES APPLICATIONS • F...


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