PDF PT2310 Data sheet ( Hoja de datos )

Número de pieza	PT2310
Descripción	Volume Controller IC
Fabricantes	Princeton Technology
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No Preview Available ! Volume Controller IC Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2310 DESCRIPTION The PT2310 is an electronic volume controller IC designed for audio equipment. Utilize CMOS Technology; it has 2 individual channels attenuator built inside and ideal for both mono and stereo applications. The PT2310 provides wide frequency response range, very low total harmonic distortion and low noise. It also has a built-in loudness compensation function for the sound effect improvement. FEATURES www.DataShe•et4CU.McomOS Technology • Low Power Consumption • Two channel independent volume attenuator • Simplified External Components • Wide Supply Voltage 4.5V∼12V, controlled by MCU interface • Attenuation Range 0dB∼-78dB (2dB/Step) • Built-in Loudness Compensation Function • Wide Frequency Response, Low Total Harmonic Distortion and Low Noise • Available in 16 Pins DIP and 16 Pins SOP APPLICATIONS • Audio Equipments • TV • Multi-media Sound Device PT2310 V1.0 -1- June, 2005 1 page Volume Controller IC Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2310 SERIAL BUS INTERFACE The DATA, CK and STB pins consist of bus line; the bus line is for communication with the MCU and the PT2310. SERIAL DATA CODE The data code is consists by L, R, D1~D4, LD, C1~C4 (totally 13 bits), at the end of the code there needs a high strobe pulse to confirm the data code is validity. www.DataSheet4U.com CK D ATA L R D1 D2 D3 D4 D5 D6 LD C1 C2 C3 C4 STB CHIP SELECTION (C1~C4) The Chip Selection code C1 is depending on the states of the CS pin, the CS pin in low state means the C1 bit=0; and the CS pin in high state means the C1 bit=1. Ignore what states of the CS pin the C2, C3 and C4 bit is presets to the state 0, 1, 1. CS C1 C2 C3 C4 “1” 1 0 1 1 “0” 0 0 1 1 LEFT AND RIGHT CHANNEL CONTROL CODE In the DATA code, the “L” bit is for left channel and the “R” is for right channel is selected. If the “L” bit is 1 means the attenuation value (D1 to D6) is for left channel exclusively; and if “L” and “R” all are “1” means attenuation value is for the both channel. LOUDNESS SETUP CODE The “LD” bit In the DATA code is for the Loudness function. When the “LD” bit is 0, the Loudness function is turned off (LS1=Off, LS2=ON) and the “LD” bit is 1 means the Loudness is turned ON (LS1=On, LS2=Off). PT2310 V1.0 -5- June, 2005 5 Page Volume Controller IC APPLICATION CIRCUIT 2 1/ 2V DD 2 20 µ F/ 2 5V + - www.DataSheet4U.com OUTPUT L-Ch INP UT 1 0µ F /2 5 V- 1 0µ F /2 5 V- + + VDD 1/2VDD 4. 5V 3. 3K Ω 1 V SS 16 VDD 2 O UT-L 15 O UT-R 3 IN -L IN -R 14 4 LD1 -L P T2 310 LD1 -R 13 5 12 LD2 -L LD2 -R 6 A GND-L A GND-R 11 7 CS 8 CK S TB D ATA 10 9 Note: Without Loudness function Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2310 VDD 0 .1 µF +4 7µ F /2 5 V - + 9V - + 1-0µ F /2 5 V O UTPUT + -1 0µ F /2 5 V IN PUT R-Ch 1/ 2V DD To M CU PT2310 V1.0 - 11 - June, 2005 11 Page

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