This article describes an integrated amplifier is a little more than one integrated circuit. It is specifically designed for the needs of industry and other battery-powered applications. Although
it seems simple, almost worthy of a visit can produce significant audio
power amplifier in Figure 2 illustrates the entire output of a few
external components are required to build an amplifier.
A 50W audio amplifier IC TDA1562 circuit project
No need for new technology to improve the state of the domestic industry. Further, there is no delay in the course of switching the lack of traditional culture. Namely, the right power supply decoupling capacitors. Capacitors C5 and C6 are required for H-level activities, which are in the box. Input capacitors C1 and C2 relatively low value because of the high IMMINENCE input of the IC. RC turn on network R4 C4 "mode select" input (pin 4) in the "silent" or "standby". IC
IC is 50W audio power amplifier circuit TDA1562
When
a unit is turned on, and the IC, there is a delay, there is a "dumb"
mode and "automatically switches time constant R4 C4 and one tenth part
of a second, and the interval between the two countries is sufficient to
avoid interference and discomfort switching phenomenon., S1, amplifier
in the" standby state "are set, it time
is not necessary to use the amplifier, if the time has elapsed, the
amplifier will quickly run to standby leak current 200 MA vanishingly
small. R3 then closed with a short circuit with the current S1 C4 is released.
IC is 50W audio power amplifier circuit TDA1562
IC is 50W audio power amplifier circuit TDA1562
Measurement results (UB = 14.4V)
Provide
8-18 5 *
CONSCIOUSNESS
* 760 mv RMS
Input IMMINENCE
70 * ohms
Performance
54 * RMS power at 4Ω W (FI = kHz, THD + N = 1%)
Distortion (THD + N)
For W * 4Ω at 1: 0.046% (1 kHz)
* 0.29% (20 kHz)
Q 35: * at 4Ω: 0.12% (1 kHz)
* 0.7% (20 kHz)
Signal-to-noise ratio (with 1 W at 4Ω)
* 88 db
But in the power
* 7.5 Hz - 185 kHz (25 W into 4Ω)
Quit
* Approximately 135 Ma (on)
Resistance:
* 1 = 1000 R1
* R2 = 4K7
* R = 1 3 thousand
R4-100 K *
Capacitors:
* C1, C2 = 470N
* C3, C4 = radial 10μF63V
* C5, C6, C8 = radial 4700μF25V
* (18 Max. Mm in diameter, 7.5 mm mesh)
* C7-100 s 5 mm grid
Semiconductor;
D1: = * LED high-power
* IC1 = TDA1562Q (Philips)
Other:
* S1-on / off switch pole
* Four flat connector pcb mounted radiator IC1 (r <2.5 K / W)
