Application information

TS2007

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4.7

Shutdown time

When the standby command is set, the time required to put the two output stages into high

impedance and to put the internal circuitry in shutdown mode, is typically 5ms. This time is

used to decrease the gain and avoid any pop noise during shutdown.

Note:

The gain decreases smoothly until the outputs are muted (see Figure 49).

4.8

Consumption in shutdown mode

Between the shutdown pin and GND there is an internal 300k

Ω resistor. This resistor forces

the TS2007 to be in shutdown when the shutdown input is left floating.

However, this resistor also introduces additional shutdown power consumption if the

shutdown pin voltage is not 0V.

Referring to Table 2: Operating conditions on page 3, with a 0.4V shutdown voltage pin for

example, you must add 0.4V/300k=1.3µA in typical (0.4V/273k=1.46µA in maximum) to the

shutdown current specified in Table 5 to Table 9.

4.9

Single-ended input configuration

It is possible to use the TS2007 in a single-ended input configuration. However, input

coupling capacitors are needed in this configuration. The following schematic diagram

shows a typical single-ended input application.

Figure 50.

Typical application for single-ended input configuration

VCC

Cin

Cin

Input

Speaker

Cs

1uF

TS2007

Gain

Select

+

-

Standby

Control

3

4

5

8

PWM

H

Bridge

Oscillator

IN-

IN+

GS

Vcc

OUT+

OUT-

Standby

Gnd

Gain Select Control

Standby Control