TS4890IST datasheet(7/46 Pages) STMICROELECTRONICS

部件名	TS4890IST

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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7 / 46 page

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TS4890

General information

1.1

Pin connections (top view)

Figure 1. Pin connections (top view)

1.2

Typical application schematic

Figure 2. Typical application schematic

Table 2. Component description

Components

Functional description

Rin

Inverting input resistor which sets the closed loop gain in conjunction with

Rfeed. This resistor also forms a high pass filter with Cin (fc = 1 / (2 x Pi x

Rin x Cin))

Cin

Input coupling capacitor which blocks the DC voltage at the amplifier input

terminal

Rfeed

Feed back resistor which sets the closed loop gain in conjunction with Rin

Supply bypass capacitor which provides power supply filtering

Bypass pin capacitor which provides half supply filtering

Cfeed

Low pass filter capacitor allowing the high frequency to be cut

(low pass filter cut-off frequency 1 / (2 x Pi x Rfeed x Cfeed))

TS4890IST 数据表(PDF) 7 Page - STMicroelectronics