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SP1455B - PCM SIGNAL MONITOR

Download the SP1455B datasheet PDF. This datasheet also covers the SP1450B variant, as both devices belong to the same pcm signal monitor family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • Suitable for 34, 120 and 140M bit! s PCM Positive and Negative Input Signal Fail Outputs High Speed Error Output Low Speed 'Stretched' Output.
  • Low Power Consumption VccllOVI [ 1 NEG liP fAIL [ 2 NEG lIP THRESH [ 3 INPUT [ 4 POS lIP fAlL [ 5 POS liP THRESH [ 6 NIC [ 7 VEl [8 '-" 10P Vcc210V) P 15.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SP1450B-Plessey.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SP1455B
Manufacturer Plessey
File Size 154.06 KB
Description PCM SIGNAL MONITOR
Datasheet download datasheet SP1455B Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
SP1450B(B) SP1450B{B) & SP1455B{B) PCM SIGNAL MONITOR CIRCUITS The SP1450 and SP1455 are bipolar integrated circuits designed to monitor errors in three-level digital signals modulated by a three-alphabet 4B3T code such as MS43. They can also indicate the failure of positive or negative pulses in the signal. The high frequency capability allows operation in PCM systems up to 34M bitls (SP1450) and 140M bitls (SP1455). Facilities are provided to adjust input thresholds independently on each polarity of input and the error output can be interfaced with low speed CMOS circuitry or high speed ECL. The SP1450B(B) and SP1455B(B) are similar to the SP1450B and SP1455B but are screened to MIL-STD-883, Method 5004, Class B.