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Número de pieza | TA8210AHQ | |
Descripción | 20W BTL X 2ch Audio Power Amplifier | |
Fabricantes | Toshiba Semiconductor | |
Logotipo | ||
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TA8210AHQ/ALQ
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8210AHQ,TA8210ALQ
20W BTL × 2ch Audio Power Amplifier
The thermal resistance θj−T of TA8210AHQ, TA8210ALQ
package designed for low thermal resistance, has a high
efficiency of heat radiation.
The temperature rise of chip can be reduced, and the influence
from the degradation of the features due to the temperature rise
at the high output can also be reduced.
This stereo audio power IC, designed for car audio use, has two
built−in channels to reduce the characteristic difference between
L and R channels.
In addition, the functions of stand−by and muting, and a variety
of protection circuits are involved.
TA8210AHQ
TA8210ALQ
Features
• Low thermal resistance
: θj−T = 1.5°C / W (infinite heat sink)
• High power
: POUT (1) = 22W (typ.) / channel
Weight
HZIP17-P-2.00: 9.8g (typ.)
HSIP17-P-2.00: 9.8g (typ.)
(VCC = 14.4V, f = 1kHz, THD = 10%, RL = 4Ω)
POUT (2) = 19W (typ.) / channel
(VCC = 13.2V, f = 1kHz, THD = 10%, RL = 4Ω)
• Low distortion ratio: THD = 0.04% (typ.) (VCC = 13.2V, f = 1kHz, POUT = 1W, RL = 4Ω, GV = 50dB)
• Low noise: VNO = 0.30mVrms (typ.) (VCC = 13.2V, RL = 4Ω, GV 50dB, Rg = 0Ω, BW = 20Hz~20kHz)
• Built−in stand−by function (with pin(4) set at low, power is turned off.): ISB = 1µA (typ.)
• Built−in muting function (with pin(1) set at low, power is turned off.): V (mute) = 1V (typ.)
• Built−in various protection circuits
Protection circuits: Thermal shut down, Over voltage, Out→VCC short, Out→GND short and Out−Out short.
• Operating supply voltage: VCC = 9~18V
1 2006-04-28
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TA8210AHQ/ALQ
5. Muting function
Through setting pin(1) (mute terminal) at about 1V or less, muting becomes possible.
The interval circuit of IC is shown in Fig.4.
When pin(1) is set to low, Q1 and Q2 are turned to on, the charge of the ripple condenser is discharged and the
bias is cut. The mute amount of 60dB or over can be obtained.
Since this muting function rapidly discharge the charge of the ripple filter capacitor of pin(8), the pop noise is
generated by the DC fluctuation of the bias section.
Therefore, this muting function is not appropriate to the audio muting but it is effective in muting at VCC→on.
6. External part list and description
Sym−
bol
Recom−
mended
Value
Feature
C1
4.7µF
DC blocking
C2
47µF
Feedback
condenser
Influence
Smaller Than
Recommended Value
Larger Than
Recommended Value
Related to pop noise at VCC→on.
Related to pop noise at VCC→on.
Determination of low cut−off frequency.
C2 =
1
2π・fL・Rf
Remarks
Related to gain.
Refer to item 4.
C3
220µF
Ripple
reduction
Time constant is small
at VCC→on or off.
Time constant is large
at VCC→on or off.
C4
0.12µF
Oscillation
prevention
Made liable to
oscillate.
Oscillation allowance.
Refer to item 3.
For filtering power supply hum and ripple.
C5
1000µF
Ripple filter
Large at using AC rectified power supply.
Small at using DC power supply.
C6
1000PF
Oscillation
prevention
Oscillation allowance improved.
Noise reduction
Refer to item 3.
5 2006-04-28
5 Page www.DataSheet4U.com
Package Dimensions
TA8210AHQ/ALQ
Weight: 9.8g (typ.)
11 2006-04-28
11 Page |
Páginas | Total 14 Páginas | |
PDF Descargar | [ Datasheet TA8210AHQ.PDF ] |
Número de pieza | Descripción | Fabricantes |
TA8210AH | 20W BTL x 2CH AUDIO POWER AMPLIFIER | Toshiba |
TA8210AHQ | 20W BTL X 2ch Audio Power Amplifier | Toshiba Semiconductor |
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