- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373543 > TA2145 (Toshiba Corporation) 3V STEREO GEADPHONE AMPLIFIER (3V USE) PDF資料下載
參數(shù)資料
| 型號： | TA2145 |
| 廠商： | Toshiba Corporation |
| 英文描述： | 3V STEREO GEADPHONE AMPLIFIER (3V USE) |
| 中文描述： | 3V的立體聲GEADPHONE放大器（3V的使用） |
| 文件頁數(shù)： | 6/17頁 |
| 文件大?。?/td> | 292K |
| 代理商： | TA2145 |
TA2145AF
2002-04-19
6
Application Note
V
CC
and GND
This IC has two V
CC
terminals and three GND terminals. Pattern layout should be designed carefully to
reduce the common impedance.
V
CC
V
CC
(pin 17) -----------------Preamplifier stage and power amplifier stage.
GVN V
CC
(pin 16) ---------Motor governor stage.
GND
PRE GND (pin 1)------------Preamplifier stage, and power amplifier stage except for the power drive stage.
PW GND (pin 11) -----------Power drive stage of power amplifier.
GVN GND (pin 12) ---------Motor governor stage.
V
REF
It is necessary to stabilize the V
REF
circuit, because the internal circuit operate on this reference.
RF IN
As this terminal is an input terminal of the ripple filter, it cannot supply a power supply to other ICs etc.
Preamplifier
Input signal should be applied to V
REF
standard, otherwise pop noise become bigger when V
CC
is turned on
and off.
Power amplifier
It is necessary to insert the coupling capacitor through the PW IN terminal. In case that DC current or DC
voltage is applied to the PW IN terminal, the internal circuit has unbalance and the power amplifier doesn
’
t
operate normally.
Operating supply voltage range of motor governor stage
As for the minimum of operating supply voltage range, the motor voltage is 1.8 V.
In case that it is more than 1.8 V, the low voltage performance becomes bad.
PRE SW sensitivity (Ta 25°C)
Supply voltage V
CC
(V)
PRE SW
T
1
1.5 V
1.8 V
0.5 V
0
1.5
2.0
2.5
3.5
4.0
3.0
2
4
1
3
1.2 V
3.0 V
3.6 V
“H”
PRE AMP: OFF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TA2145F | 3V STEREO GEADPHONE AMPLIFIER (3V USE) |
| TA2149BFN | 3 V AM/FM 1 Chip Tuner IC (for Digital Tuning System) |
| TA2149BN | 3 V AM/FM 1 Chip Tuner IC (for Digital Tuning System) |
| TA2151FN | RF Amplifier for Digital Servo CD System |
| TA2153FN | RF Amplifier for Digital Servo CD System |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TA2145AF | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:3 V Stereo Headphone Amplifier (3 V USE) |
| TA2145AFG | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:3 V Stereo Headphone Amplifier (3 V USE) |
| TA2145F | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:3V STEREO GEADPHONE AMPLIFIER (3V USE) |
| TA2149BFN | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:3 V AM/FM 1 Chip Tuner IC (for Digital Tuning System) |
| TA2149BN | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:3 V AM/FM 1 Chip Tuner IC (for Digital Tuning System) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。