TS613IDT STMicroelectronics, TS613IDT Datasheet - Page 8

• Manufacturer Part Number: TS613IDT
• Description: IC AMP DUAL WIDE BAND OP 8 SOIC
• Manufacturer: STMicroelectronics

Specifications of TS613IDT

• Amplifier Type: Voltage Feedback
• Number Of Circuits: 2
• Slew Rate: 40 V/µs
• Gain Bandwidth Product: 130MHz
• Current - Input Bias: 5µA
• Voltage - Input Offset: 1000µV
• Current - Supply: 11mA
• Current - Output / Channel: 320mA
• Voltage - Supply, Single/dual (±): 5 V ~ 12 V, ±2.5 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Number Of Channels: 2
• Voltage Gain Db: 80.83 dB
• Common Mode Rejection Ratio (min): 90 dB
• Input Offset Voltage: 6 mV
• Supply Current: 22 mA
• Maximum Power Dissipation: 2000 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Dual Supply Voltage: +/- 6 V
• Minimum Operating Temperature: - 40 C
• Power Supply Requirement: Single/Dual
• Pin Count: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• -3db Bandwidth: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-2302-2

TS613
By identification of both equations (2) and (3), the
synthesized impedance is, with Rs1=Rs2=Rs:
Figure 5 : Equivalent schematic. Ro is the syn-
Unlike the level Vo° required for a passive imped-
ance, Vo° will be smaller than 2Vo in our case. Let
us write Vo°=kVo with k the matching factor vary-
ing between 1 and 2. Assuming that the current
through R3 is negligeable, it comes the following
resistance divider:
After choosing the k factor, Rs will equal to
1/2RL(k-1).
A good impedance matching assumes:
From (4) and (5) it becomes:
By fixing an arbitrary value for R2, (6) gives:
Finally, the values of R2 and R3 allow us to extract
R1 from (1), and it comes:
with GL the required gain.
8/10
Vi.Gi
thesized impedance
R1
=
--------------------------------------------------------- 7
2 1
Ro
R2
------ -
R3
Ro
Ro
R o
R3
–
=
=
=
R2
------ -
R3
=
=
1
---------------------------
RL
---------------- - 4
1
Iout
1
-- - RL 5
2
2R2
–
-------------------
1
kVoRL
–
Rs
GL 1
+
2Rs
--------- - 6
–
R2
------ -
R3
RL
R2
2Rs1
2Rs
--------- -
,
RL
–
,
,
–
R2
------ -
R3
,
1/2
RL
CAPABILITIES
The table below shows the calculated compo-
nents
R2=1000
displays the maximum amplitude level on the line
regarding the TS613 maximum output capabilities
(18Vpp diff.) and a 1:2 line transformer ratio.
MEASUREMENT OF THE POWER
CONSUMPTION IN THE ADSL APPLICATION
Conditions:
Passive impedance matching
Transformer turns ratio: 2
Power Supply: 12V
Maximun level required on the line: 12.4Vpp
Maximum output level of the driver: 12.4Vpp
Crest factor: 5.3 (Vp/Vrms)
The TS613 power consumption during emission
on 900 and 4550 meter twisted pair telephone
lines: 360mW
GL (gain for the
loaded system)
1.3
1.4
1.5
1.6
1.7
k
R2 (=R4)
R3 (=R5)
Passive matching
Active matching
R1
Rs
820
490
360
270
240
( )
R1
for different values of k. In this case
and the gain=16dB. The last column
1500
1600
2200
2400
3300
( )
R3
GL is fixed for the application requirements
GL=Vo/Vi=0.5(1+2R2/R1+R2/R3)/(1-R2/R3)
2R2/[2(1-R2/R3)GL-1-R2/R3]
Abritrary fixed
R2/(1-Rs/0.5RL)
0.5RL(k-1)
( )
3.9
5.1
6.2
7.5
9.1
Rs
TS613 Output
Level to get
12.4Vpp on
(Vpp diff)
the line
10.5
12.4
8.7
9.3
9.9
8
Maximum
Line level
(Vpp diff)
27.5
25.7
25.3
23.7
22.3
18