TS2012FC datasheet(24/31 Pages) STMICROELECTRONICS

Numer części	TS2012FC

Szczegółowy opis	Filter-free flip-chip stereo 2x2.5 W class D audio power amplifer

PDF	31 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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Application information

TS2012FC

24/31

Figure 38.

Shutdown phase

4.7

Consumption in shutdown mode

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

Ω (+-/20%) resistor. This

resistor forces the TS2012 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 at 0 V.

With a 0.4 V shutdown voltage pin for example, you must add 0.4 V/300 k

Ω=1.3 µA in typical

(0.4 V/240 k

Ω=1.66 µA in maximum) for each shutdown pin to the standby current specified

in Table 5 to Table 7. Of course, this current will be provided by the external control device

for standby pins.

4.8

Single-ended input configuration

It is possible to use the TS2012 in a single-ended input configuration. However, input

coupling capacitors are mandatory in this configuration. The schematic diagram in Figure 39

shows a typical single-ended input application.

Preset gain

STBY

Time

Gain

STBY

Level

Gain decreasing

G = 6dB

G = 12dB

G = 18dB

G = 24dB

Mute

STBY

Mute

TS2012FC Arkusz danych(PDF) 24 Page - STMicroelectronics