- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98153 > TA2123AFG 0.006 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 PDF資料下載
參數(shù)資料
| 型號： | TA2123AFG |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.006 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封裝： | 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 430K |
| 代理商： | TA2123AFG |
TA2123AFG
2004-12-01
11
The transfer function of bass boost is as follows from Fig.4.
G (ω) = G1 (ω)A1G2 (ω)G3 (ω)A2
The bass boost effect is changed by external resistor or external capacitor. The transfer function and cut
off frequency are as follows.
(1) Transfer function of LPF
G1 (ω) = 1 / (1 + jωC1R1)
fL = 1 / 2πC1R1
(2) Transfer function of BPF
G3 (ω) = jωC4R5 / [1 + jω (R4C3 + R5C3 + C4R4) ω2 R4C3R5C4]
C4
R5
C3
R4
2
/
1
O
f
π
=
(3) HPF gain and cut off frequency
G2 (ω) = 1 + R2 / (R3 + 1 / jωC2)
fHC = 1 / (2 π R3C2)
Fig.5
BPF
Graph.1 Characteristic of bass boost
(4) fO and fL
The fL and fO should be set up out of the audio frequency range. In case that the fO and fL is inside
of audio frequency range and AGC circuit operates, the voltage gain decrease.
(5) HPF
The fHC should be made 1 / 2 or less frequency as compared with the fL or fO. The phase difference
is large near the fHC, so that the bass boost level runs short. And the HPF gain of middle or high
frequency range should be set to 10dB or more.
A
Ra
Rb
Ca
Cb
Frequency f (Hz)
Resp
on
se
(
d
B)
30
3
20
10
0
10
20
10
100
300
Total characteristic
HPF
fL
fO
LPF
BPF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TA2131FLG | 0.008 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC24 |
| TA2131FNG | 0.008 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| TA2131FN | 0.008 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| TA2132BFG | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO16 |
| TA2132BPG | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDIP16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TA2125 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Power Driver IC for CD Player |
| TA2125AF | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Power Driver IC for CD Player |
| TA2125AF_03 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Power Driver IC for CD Player |
| TA-2130 | 制造商:GC Electronics 功能描述: |
| TA2131FL | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:LOW CURRENT CONSUMPTION GEADPHONE AMPLIFIER FOR PORTABLE MD PLAYER (WITH BASS BOOST FUNCTION) |
發(fā)布緊急采購，3分鐘左右您將得到回復。