- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98155 > TA8215LQ 18 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM17 PDF資料下載
參數(shù)資料
| 型號(hào)： | TA8215LQ |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 18 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM17 |
| 封裝： | 2 MM PITCH, PLASTIC, HSIP-17 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 927K |
| 代理商： | TA8215LQ |
TA8215HQ/LQ
2006-04-28
3
The total closed loop gain GV of this IC can be obtained by expression below when the closed loop voltage gain of
Amp1 is GV1.
GV1 = 20og
R2
f
R
R2)
f
(R
R1
+
(dB) ..... (1)
The closed loop voltage gain of power Amp, Amp3
and Amp4 is fixed at GV3 ≒ GV4 = 20dB.
Therefore, the total closed loop voltage gain GV is
obtained through BTL connection by the expression
below.
GV = GV1 + GV3 + 6 (dB) ..... (2)
For example, when Rf = 0, GV is obtained by the
expressions (1) and (2) as shown below.
GV ≒ 24 + 20 + 6 = 50dB
The voltage gain is reduced when Rf is increased.
(Fig.2)
With the voltage gain reduced, since (1) the oscillation
stability is reduced, and (2) the pop noise changes when
VCC is set to on, refer to the items 3 and 4.
2. Stand
by SW function
By means of controlling pin (4) (stand
by terminal) to
high and low, the power suply can be set to on and off.
The threshold voltage of pin (4) is set at about 3V (typ.),
and the power supply current is about 1A (typ.) at the
stand
by state.
(4) pin control voltage : V (SB)
Stand
by
Power
V (SB) (V)
On
Off
0~2
Off
On
3~VCC
~Advantage of stand
by SW~
(1) Since VCC can directly be controlled to on, off by the microcomuter, the switching relay can be omitted.
(2) Since the control current is microscopic, the switching relay of small current capacity is satisfactory for
switching.
(4)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TA8215L | 18 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM17 |
| TA8215H | 18 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM17 |
| TA8216HQ | 13 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM12 |
| TA8216H | 13 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM12 |
| TA8220HQ | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM17 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TA8216H | 制造商:Panasonic Industrial Company 功能描述:IC |
| TA8216H_02 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Dual Audio Power Amplifier |
| TA8216HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Dual Audio Power Amplifier |
| TA8216HQ(5) | 功能描述:音頻放大器 13W x 2ch Gen Audio Pwr Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TA8217P | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:DUAL AUDIO POWER AMPLIFIER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。