- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358512 > TS612IDD (STMICROELECTRONICS) DUAL OP-AMP, 10000 uV OFFSET-MAX, 130 MHz BAND WIDTH, PDSO20 PDF資料下載
參數(shù)資料
| 型號(hào)： | TS612IDD |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運(yùn)算放大器 |
| 英文描述： | DUAL OP-AMP, 10000 uV OFFSET-MAX, 130 MHz BAND WIDTH, PDSO20 |
| 封裝： | BATWING, PLASTIC, MICRO, SO-20 |
| 文件頁數(shù)： | 9/10頁 |
| 文件大小： | 131K |
| 代理商： | TS612IDD |
TS612
9/10
Figure 5 :
Equivalent schematic. Ro is the
synthesized impedance
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:
RL
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:
2
R
3
with GL the required gain.
CAPABILITIES
The table below shows the calculated compo-
nents for different values of k. In this case
R2=1000
and the gain=16dB. The last column
displays the maximum amplitude level on the line
regarding the TS612 maximum output capabilities
(18Vpp diff.) and a 1:2 line transformer ratio.
POWER CONSUMPTION IN COMMUNICATION
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)
Power Supply: 12V
The TS612 power consumption during emission
on 900 and 4550 meter twisted pair telephone
lines:
450mW
GL (gain for the
loaded system)
R1
R2 (=R4)
R3 (=R5)
Rs
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)
Ro
Vi.Gi
Iout
1/2
RL
Ro
2
Rs
1
+
---------------------------
=
Ro
1
2
--
RL
5
( )
,
=
2
R
3
------
1
RL
---------
6
( )
,
–
=
R
3
RL
1
---------
–
-------------------
=
R
1
2 1
------
–
GL
1
–
2
R
3
------
–
---------------------------------------------------------
7
( )
,
=
Active matching
k
R1
(
)
R3
(
)
Rs
(
)
TS612 Output
Level to get
12.4Vpp on
the line
(Vpp diff)
8
8.7
9.3
9.9
10.5
12.4
Maximum
Line level
(Vpp diff)
1.3
1.4
1.5
1.6
1.7
820
490
360
270
240
1500
1600
2200
2400
3300
3.9
5.1
6.2
7.5
9.1
27.5
25.7
25.3
23.7
22.3
18
Passive matching
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TS821ILT | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.225 V, PDSO3 |
| TSC80251A1-A12IBD | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
| TSC87251A1-B12CB | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQCC44 |
| TSC251A1XXX-B16CB | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQCC44 |
| TSC87251A1-A16ABB | 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQCC44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS612IDT | 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual Wideband RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| TS613 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL WIDE BAND OPERATIONAL AMPLIFIER WITH HIGH OUTPUT CURRENT |
| TS613_02 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL WIDE BAND OPERATIONAL AMPLIFIER WITH HIGH OUTPUT CURRENT |
| TS613D | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL WIDE BAND OPERATIONAL AMPLIFIER WITH HIGH OUTPUT CURRENT |
| TS613ID | 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual Wideband RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。