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TS636 Datasheet Differential Variable Gain Amplifier For Adsl Line Interface

Manufacturer: STMicroelectronics

Overview: TS636 DIFFERENTIAL VARIABLE GAIN AMPLIFIER FOR ADSL LINE INTERFACE s s s s LOW NOISE : 4.

General Description

This TS636 is particularly intended for applications such as preamplification in telemunication systems using multiple carriers.

It has been minly designed to fit with ADSL chip-sets such as ASCOT ADSL chip-set for CPE.

The TS636 is a differential digitally controled variable gain amplifier featuring a high slew rate of 90V/µs, a large bandwidth, a very low distortion and a very low current and voltage noise.

Key Features

  • a high input impedance and a low noise current. To minimize the overall noise figure, the source impedance must be less than 3kΩ. This value gives an equal contribution of voltage and current noises. The second stage is a gain/attenuation stage (+12dB to -9dB) featuring a low output impedance. This output stage can drive loads as low as 500Ω. v Input1 + _ _ Ouput1 + +Vcc1 v -Vcc Analog GND (AGND) v + + _ Ouput2 +Vcc2 Input2 _ v v GAIN.

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