TDA7570

Electrical specifications

11/17

3.4

Notes on the electrical schematic shown in Figure 3

3.4.1

Main characteristics

●

2 channels single-ended or 1 channel bridge PWM amplifier

●

Power output: see Table 5

●

Gain single-ended = 28 dB

●

Gain bridge = 34dB

●

Clip detector settled at THD=10%

●

Internal master oscillator

The schematic is depicted showing the suggested structure of the printed circuit board

tracks (star points, high current path, components placement).

To avoid malfunctioning due to the parasitic inductance, short connections lengths are

recommended.

Table 6.

Component characteristics

Component

(See schematic of Figure 4)

Minimum load:

2 x 4 Ohm single-ended

or 8 Ohm bridge

(2 x 65W / 1 x 130W)

Minimum load:

2 x 2 Ohm single-ended

or 4Ohm bridge

(2 x 125W / 1 x 250W))

P-MOS-L

P-MOS-R

STP12PF06

2 x STP12PF06

in parallel

N-MOS-L

N-MOS-R

STP14NF06

2 x STP14NF06

in parallel

Rp-N-L2

RP-P-L2

Rp-N-R2

Rp-P-R2

Not present

4.7K