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POWER AMPLIFIER. TA8229K Datasheet

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POWER AMPLIFIER. TA8229K Datasheet






TA8229K AMPLIFIER. Datasheet pdf. Equivalent




TA8229K AMPLIFIER. Datasheet pdf. Equivalent





Part

TA8229K

Description

LOW FREQUENCY POWER AMPLIFIER



Feature


TOSHIBA Bipolar Linear Integrated Circui t Silicon Monolithic TA8229K Low Freque ncy Power Amplifier TA8229K is an audi o power IC with built-in two channels d eveloped for portable radio cassette ta pe recorder with power ON/OFF switch. T hermal shut down protection circuit is built in. Features · High power : Pout (1) = 2.5 W (typ.) (VCC = 9 V, RL = 4 Ω, f = 1 kHz, THD =.
Manufacture

Toshiba

Datasheet
Download TA8229K Datasheet


Toshiba TA8229K

TA8229K; 10%) Pout (2) = 4.6 W (typ.) (VCC = 12 V, RL = 3 Ω, f = 1 kHz, THD = 10%) · Low popping noise at power ON · Small quiescent current : ICCQ = 21 mA (typ. ) (VCC = 15 V, Vin = 0) · Soft clip · Built-in thermal shut down protection circuit · Best for supply voltage 9 V, 12 V · Operation supply voltage range : VCC (opr) = 6~15 V (Ta = 25°C) Weig ht: 3.9 g (typ.) TA8229K .


Toshiba TA8229K

1 2002-03-05 Block Diagram TA8229K 2 2002-03-05 Application Information and Application Method 1. Adjustment of v oltage gain The voltage gain Gv is obt ained as follows by R1, R2 and Rf in Fi gure 1. Gv = 20 log Rf + R1 + R2 R f + R1 When Rf = 0 Ω Gv = 56.5dB (t yp.) When Rf = 120 Ω Gv = 45dB (typ. ) TA8229K Figure 1 By increasing Rf, reduction of Gv is pos.


Toshiba TA8229K

sible. However, since the feedback incre ase is liable to produce oscillation, i t is recommended to use this at 40dB or over. 2. Thermal shut-down circuit The thermal shut-down circuit is built in for the purpose of preventing the destr uction of IC due to the abnormal temper ature rise when the heat radiation is i nsufficient. The operation temperature is set at radiatio.

Part

TA8229K

Description

LOW FREQUENCY POWER AMPLIFIER



Feature


TOSHIBA Bipolar Linear Integrated Circui t Silicon Monolithic TA8229K Low Freque ncy Power Amplifier TA8229K is an audi o power IC with built-in two channels d eveloped for portable radio cassette ta pe recorder with power ON/OFF switch. T hermal shut down protection circuit is built in. Features · High power : Pout (1) = 2.5 W (typ.) (VCC = 9 V, RL = 4 Ω, f = 1 kHz, THD =.
Manufacture

Toshiba

Datasheet
Download TA8229K Datasheet




 TA8229K
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8229K
Low Frequency Power Amplifier
TA8229K is an audio power IC with built-in two channels
developed for portable radio cassette tape recorder with power
ON/OFF switch. Thermal shut down protection circuit is built in.
Features
· High power
: Pout (1) = 2.5 W (typ.)
(VCC = 9 V, RL = 4 , f = 1 kHz, THD = 10%)
Pout (2) = 4.6 W (typ.)
(VCC = 12 V, RL = 3 , f = 1 kHz, THD = 10%)
· Low popping noise at power ON
· Small quiescent current
: ICCQ = 21 mA (typ.) (VCC = 15 V, Vin = 0)
· Soft clip
· Built-in thermal shut down protection circuit
· Best for supply voltage 9 V, 12 V
· Operation supply voltage range: VCC (opr) = 6~15 V (Ta = 25°C)
Weight: 3.9 g (typ.)
TA8229K
1 2002-03-05




 TA8229K
Block Diagram
TA8229K
2 2002-03-05




 TA8229K
Application Information and Application Method
1. Adjustment of voltage gain
The voltage gain Gv is obtained as follows by R1, R2 and Rf in Figure 1.
Gv
=
20
log
Rf + R1 + R2
Rf + R1
When Rf = 0
Gv = 56.5dB (typ.)
When Rf = 120 Gv = 45dB (typ.)
TA8229K
Figure 1
By increasing Rf, reduction of Gv is possible. However, since the feedback increase is liable to produce
oscillation, it is recommended to use this at 40dB or over.
2. Thermal shut-down circuit
The thermal shut-down circuit is built in for the purpose of preventing the destruction of IC due to the
abnormal temperature rise when the heat radiation is insufficient.
The operation temperature is set at radiation Fin temperature 175°C (typ.).
At this temperature or over the bias is interrupted to prevent the destruction of IC.
3. Input stage
The input circuit of this IC is as shown in Figure 2.
PNP Tr: Q1 is provided in the input circuit so as to make its usage possible without the input coupling
capacitor.
However, at pin11 and 12, max 60 mV offset voltage is produced.
Application after checking volume slide noise is recommended.
For cutting the volume slide noise, insert the input capacitor: CIN in series to interrupt the DC component.
Figure 2
3
2002-03-05



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