TS4890 datasheet(39/46 Pages) STMICROELECTRONICS

部件名	TS4890

功能描述	Rail-to-rail output 1 W audio power amplifier with standby mode active low

PDF	46 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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TS4890

Application information

Application n°4: differential inputs BTL power amplifier

In this configuration, we need to place these components: R1, R4, R5, R6, R7, C4, C5, C12.

We have also: R4 = R5, R1 = R6, C4 = C5. The gain of the amplifier is:

For Vcc=5 V, a 20 Hz to 20 kHz bandwidth and 20 dB gain BTL power amplifier you could

follow the bill of material below:

100 nF

Short-circuit

C10

Short-circuit

C12

1 µF

S1, S2, S6, S7

2 mm insulated plug

10.16 mm pitch

3 connector 2.54 mm

pitch

PCB phono jack

Led 3 mm

TS4890ID or TS4890IS

Table 12. Components 4

Designator

Part type

110 k / 0.125 W

22 k / 0.125 W

Short-circuit

(Vcc-Vf_led)/If_led

10 k/0.125 W

470 nF

100 µF

100 nF

Short-circuit

C10

Short-circuit

Table 11. Components 3

Designator

Part type

VDIFF

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