SL531 Datasheet - Gec Plessey

SL531 250Mhz TRUE LOG IF Amplifier

The SL531 transfer characteristic has two regions For small input signals it has a nominal gain of 10 dB. at large signals the gain falls to unity (see Fig 7) This is achieved by operating a limiting amplifier and a unity gain amplifier in parallel (see Fig 3) Tr1 and Tr4 comprise the long tailed pa.

THIS DOCUMENT IS FOR MAINTENANCE PURPOSES ONLY AND IS NOT RECOMMENDED FOR NEW DESIGNS ADVANCE INFORMATION DS3608 - 2.0 SL531 250MHz TRUE LOG IF AMPLIFIER The SL531 C is a wide band amplifier designed for use in logarithmic IF amplifiers of the true log type. The input and log output of a true log amplifier are at the same frequency i e detection does not occur. In successive detection log amplifiers (using SL521 SL1521 types) the log output is detected. The small signal gain is 10dB and bandwi.

SL531 Features

* s s s Low Phase Shift vs Amplitude On-Chip Supply Decoupling Low External Components Count APPLICATIONS s s s True Log Strips with:Log Range 70dB Centre frequencies 10 - 200MHz Phase Shift ± 0.5 degrees / 10dB Fig.2 Circuit diagram ABSOLUTE MAXIMUM RATINGS (Non-simultaneous) Supply voltage Storag

SL531_GecPlessey.pdf