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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
ELECTRICAL CHARACTERISTICS. VCC = ±6Volts, Tamb = 25°C (unless otherwise specified).
Symbol
Parameter
Test Condition
Min.
Typ.
Max Unit
DC PERFORMANCE
Iib Input Bias Current (AGND pin)
ICC Total Supply Current
VOFFSET Differential Input Offset Voltage
SVR Supply Voltage Rejection Ratio
POWER DOWN MODE
No load, Vout = 0
Vin = 0, AV = 30dB
AV = 0dB
Iccpdw Power Down Total Consumption Power Down Mode
Zout Power Down Output Impedance Power Down Mode
AC PERFORMANCE
Zin Input Impedance
VOH
High Level Output Voltage
RL connected to GND
RL = 500
VOL
Low Level Output Voltage
RL connected to GND
RL = 500
AV
Voltage Gain
F= 1MHz
Gain monotonicity guaranteed by design
PAV
Avstep
Avmis
Precision of the Voltage Gain
Step Value
Gain Mismatch between Both
Channels
F= 1MHz
F= 1MHz
F= 1MHz
Bw
Bandwidth @ -3dB
RL = 500, CL = 15pF
Rbw Bandwidth Roll-off
Io
Bandwidth @ -3dB
RL = 500, CL = 15pF
SR Slew Rate (gain independent)
NOISE AND DISTORTION
AV = -9dB
AV = +30dB
AV = +30dB, F = 1MHz
|Source|
Sink
Vo = 2Vpeak
in Equivalent Input Noise Current F = 100kHz
en
THD30
Equivalent Input Noise Voltage
Harmonic Distorsion
F = 100kHz
AV = 30dB
1Vpeak, F = 150kHz,
AV = +30dB, RL = 500//15pF
H2
H3
H4
H5
IM3_1
Third Order Intermodulation
Product
F1 = 180kHz, F2 = 280kHz
Vout = 1Vpeak, AV = +30dB
RL = 500//15pF
@ 80kHz
@ 380kHz
@640kHz
@740kHz
IM3_2
Third Order Intermodulation
Product
F1 = 70kHz, F2 = 80kHz
Vout = 1Vpeak, AV = +30dB
RL = 500//15pF
@ 60kHz
@ 90kHz
@220kHz
@230kHz
50
100k
4
-9
-1.4
2.4
45
9
17
17
40
8
28
80
150k//5pF
100k//5pF
4.5
-4.5
3
100
17
0.08
28
22
90
1.6
4.7
-70
-93
-98
-99
-77
-85
-86
-87
-77
-79
-83
-84
µA
mA
6
mV
dB
150
µA
V
-4
V
30
dB
1.4
dB
3.6
dB
1
dB
MHz
MHz
dB
mA
V/µs
pA/Hz
nV/Hz
dBc
dBc
dBc
3/9
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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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