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TS636IDT View Datasheet(PDF) - STMicroelectronics

Part NameTS636IDT ST-Microelectronics
STMicroelectronics ST-Microelectronics
DescriptionDIFFERENTIAL VARIABLE GAIN AMPLIFIER FOR ADSL LINE INTERFACE


TS636IDT Datasheet PDF : 9 Pages
1 2 3 4 5 6 7 8 9
TS636
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
VCC Supply voltage 1)
Vi
Input Voltage 2)
Toper Operating Free Air Temperature Range TS636ID
Tstd Storage Temperature
Tj Maximum Junction Temperature
Rthjc Thermal Resistance Junction to Case
Rthja Thermal Resistance Junction to Ambiante Area
Output Short Circuit Duration
1. All voltages values are with respect to network terminal.
2. The magnitude of input and output voltages must never exceed VCC +0.3V.
OPERATING CONDITIONS
Symbol
Parameter
VCC Supply Voltage
Vicm Common Mode Input Voltage
APPLICATION: ADSL LINE INTERFACE
Value
14
0 to 14
-40 to + 85
-65 to +150
150
22
125
Infinite
Unit
V
V
°C
°C
°C
°C/W
°C/W
Value
5 to 12
VCC/2
Unit
V
V
ASCOT ADSL
CHIP-SET
ST70135 ST70134
TX
emission LP filter
(analog
signal)
Power Down
RX
reception
(analog signal)
upstream
TS634 or TS635
Line Driver
VGA
HYBRID
CIRCUIT
twisted-pair
telephone
line
downstream
TS636
Receiver
4-bit Gain Control
2/9
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DESCRIPTION
This TS636 is particularly intended for applications such as preamplification in telecommunication 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.
The gain can be set from -9dB to +30dB through a 4bit digital word, with 3dB steps.

■ LOW NOISE : 4.7nV/√Hz
■ LOW DISTORTION
■ HIGH SLEW RATE : 90V/µs
■ WIDE BANDWIDTH : 52MHz @ -3dB & 18dB gain
■ GAIN PROGRAMMABLE from -9dB to +30dB with 3dB STEPS
■ POWER DOWN FUNCTION

APPLICATION
■ Preamplifier with automatic gain control for Asymmetric Digital Subscriber Line (ADSL).

 

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