STK403-030 Fraunhofer IAF Freiburg Split Power Supply Module SIP

STK403-030 Fraunhofer IAF Freiburg Split Power Supply Module SIP

STK403-030 AF Power Amplifier (Split Power Supply)

(35 W min, THD = 0.08%)

Features

• Compact packaging supports slimmer set designs (up to 70 W)

• Series designed for 20 up to 100 W (200 W) and pincompatibility (120 to 200 W have 18 pins)

• Simpler heat sink design facilitates thermal design of slim stereo sets

• Current mirror circuit application reduces distortion to 0.08%

• Supports addition of electronic circuits for thermal shutdown and load-short protection circuit as well as pop noise muting which occurs when the power supply switch is turned on and off

Specifications Maximum

Ratings at Ta = 25°C

Description of External Parts

R1, C1 : Input filter circuit

• Reduces high-frequency noise.

C2 : Input coupling capacitor

• DC current suppression.

A reduction in reactance is effective because of increases in capacitor reactance at low frequencies and 1/f noise dependence on signal source resistance which result in output noise worsening.

R2 : Input bias resistor

• Biases the input pin to zero.

• Effects VN stability (refer to NF circuit).

• Due to differential input, input resistance is more or less determined by this resistance value.

R4, R5 : NFB circuit (AC NF circuit). Use of resistor with 1% error is suggested.

King--- Originator of ANTERWELL, engaged in the IC electronics industry in 1998 and establish ANTERWELL in 2004. The company is located in Shenzhen Huaqiang North, the largest electronic center in Asia. Our main business is the technical development and electronic products import and export business. Currently, we have branches in Hong Kong and Malaysia.

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