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PDF TA8260AH Data sheet ( Hoja de datos )
| Número de pieza | TA8260AH | |
| Descripción | Max Power 40 W BTL x 4CH Audio Power IC | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8260AH
Max Power 40 W BTL × 4CH Audio Power IC
TA8260AH
The TA8260AH is 4 ch BTL audio power amplifier for car audio
application.
This IC can generate more high power: POUT MAX = 40 W as it is
included the pure complementary PNP and NPN transistor
output stage.
It is designed low distortion ratio for 4 ch BTL audio power
amplifier, built-in Stand-by Function, Muting Function, Clip
detector, and diagnosis circuit.
Additionally, the AUX. amplifier is built-in, it can make the beep
signal etc. output to 2 channels (OUT1 and 4).
It contains various kind of protectors for car audio use.
Features
Weight: 9.8 g (typ.)
· High power
: POUT MAX (1) = 40 W (typ.)
(VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 Ω)
: POUT MAX (2) = 37 W (typ.)
(VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 Ω)
: POUT (1) = 27 W (typ.)
(VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
: POUT (2) = 22 W (typ.)
(VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
· Built-in clip detector & diagnosis circuit. (pin 3)
· Low distortion ratio
: THD = 0.02% (typ.)
(VCC = 13.2 V, f = 1 kHz, POUT = 5 W, RL = 4 Ω)
· Low noise
: VNO = 0.10 mVrms (typ.)
(VCC = 13.2 V, Rg = 0 Ω, GV = 26dB, BW = 20 Hz~20 kHz)
· Built-in stand-by switch function (pin 2)
· Built-in muting function (pin 24)
· Built-in AUX. amplifier from single input (pin 16) to 2 channels output ; OUT1 and 4
· Built-in junction temperature detection circuit (pin 23)
: Pin 23 DC voltage rises at about +5 mV/°C in proportion to junction temperature.
· Built-in various protection circuit
: Thermal shut down, over voltage, out to GND, out to VCC, out to out short
· Operating supply voltage: VCC (opr) = 9~18 V
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TA8260AH
3. Muting function (pin 24)
By means of controlling pin 24 less than 0.5 V, it can make the audio muting condition.
The muting time constant is decided by R1 and C4 and these parts is related the pop noise at power
ON/OFF.The series resistance; R1 must be set up less than 15 kΩ, we recommend 10 kΩ.
The muting function have to be controlled by a transistor, FET and µ-COM port which has IMUTE ≥ 250 µA
ability.
Terminal 24 must not be pulled up and it shall be controlled by OPEN/LOW.
Figure 4 Muting function
Figure 5 Mute attenuation−Vmute (V)
4. AUX. input (pin 16)
The pin 16 is for input terminal of AUX. amplifier.
The total gain is 0dB by using of AUX. amplifier.
Therefore, the µ-COM can directly drive the AUX. amplifier.
BEEP sound or voice synthesizer signal can be input to pin 16 directly.
Figure 6 AUX input
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TA8260AH
11 2002-03-05
11 Page | ||
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