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TZA3044; TZA3044B
Information as of 2000-08-20
TZA3044; TZA3044B; SDH/SONET STM4/OC12 and 1.25 Gbits/s Gigabit Ethernet postamplifiers
The TZA3044 is a high gain limiting amplifier that is designed to process signals from fibre optic preamplifiers like the TZA3043 and
TZA3023. It is pin compatible with the NE/SA5224 and NE/SA5225 but with extended power supply range, and needs less external
components.
Capable of operating up to 1.25 Gbits/s, the chip has input signal level detection with a user-programmable threshold. The data and level
detection status outputs are differential outputs for optimum noise margin and ease of use.
The TZA3044B has the same functionality as the TZA3044, but with TTL compatible status outputs (pins ST and STQ), and TTL
compatible JAM input.
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Pin compatible with the NE/SA5224 and NE/SA5225 but with extended power supply range and less external component count
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Wideband operation from 1.0 kHz to 1.25 GHz typical
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Applicable in 622 Mbits/s SDH/SONET receivers and 1.25 Gbits/s Gigabit Ethernet receivers
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Single supply voltage from 3.0 to 5.5 V
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Positive Emitter Coupled Logic (PECL) compatible data outputs
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Positive Emitter Coupled Logic (PECL) compatible status outputs (TTL compatible status outputs for the TZA3044B)
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Programmable input signal level detection to be adjusted using a single external resistor
l
On-chip DC offset compensation without external capacitor.
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Digital fibre optic receiver for SDH/SONET STM4/OC12 and Gigabit Ethernet applications
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Wideband RF gain block.
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