
Zarlink Semiconductor Inc
100MHz DUAL WIDEBAND LOG AMPLIFIER
The SL523B and C are wideband amplifiers for use in successive detection logarithmic IF strips operating at centre frequencies between 10 and 100MHz They are pin compatible with the SL521 series of logarithmic amplifiers and comprise two amplifiers internally connected in cascade Small signal voltage gain is 24dB and an internal detector with an accurate logarithmic characteristic over a 20dB range produces a maximum Output of 2.1 mA. A strip of SL523s can be directly coupled and decoupling is provided on each amplifier RF limiting occurs at an input voltage of 25mV RMS but the device will withstand input voltages up to 1 8V RMS without damage
FEATURES
■ Small Size/Weight
■ Low Power Consumption
■ Readily Cascadable
■ Accurate Logarithmic Detector Characteristic
QUICK REFERENCE DATA
■ Small Signal Voltage Gain: 24dB
■ Detector Output Current: 21mA
■ Noise Figure: 4dB
■ Frequency Range: 10-100MHz
■ Supply Voltage +6V
■ Supply Current 30mA