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AN12943A Datasheet

Download or read online Panasonic Corporation AN12943A For Video·Audio - Common Use - Headphone Amp pdf datasheet.
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DATA SHEET
AN12943A
Part No.
Package Code No.
HSOP056-P-0300A
SEMICONDUCTOR COMPANY
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Publication date: July 2004
SDC00057AEB
1

Summary of Contents

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... DATA SHEET Part No. Package Code No. MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. Publication date: July 2004 AN12943A HSOP056-P-0300A SEMICONDUCTOR COMPANY SDC00057AEB 1 ...

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... AN12943A Overview ..... 3 Features ... 3 Applications … ...

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... AN12943A AN12943A Audio signal processing IC for notebook PC Overview AN12943A is an one-chip IC for the stereo speakers which can output headphone amplifiers, line amplifiers and electronic volumes. Since the headphone amplifier is a dual power supply system which uses a DC-DC converter to create the negative power source, an output capacitor is not necessary ...

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... AN12943A Block Diagram OUT-L-ch. (Line) OUT-R-ch. (Line) STBY BEEP_IN Switch GND N.C. (Test out) Headphone (10 V) (10 V) N.C. (Test CTL) HP_JACK_IN Signal automatic detection function on/off SPK_MUTE SP GND 4 dBV L-ch. SP out 9.17 dBV 1.1 times 4 1.1 times 4 ...

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... AN12943A Pin Descriptions Pin No. Pin name 1 V _SP_R CC 2 SP_OUT_R 3 SP_OUT_R 4 SP_OUT_R 5 SP_OUT_R 6 GND_SP 7 DETECT_CAP 8 N.C. 9 GND 10 N.C. 11 DETECT_IN 12 DAMP_OUT 13 OFFSET_HPR 14 OFFSET_HPL 15 N. Switch _IN REF 19 EVR_CTL 20 BV REF 21 Switch A-1 22 Switch A-2 23 Switch A-3 24 Switch B-1 25 Switch B-2 26 GND 27 INPUT_R 28 INPUT_L 29 LINEOUT_L 30 LINEOUT_R ...

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... AN12943A Pin Descriptions (continued) Pin No. Pin name 35 GND N. HP_OUT_L 41 HP_OUT_R 42 N. _SP REF 44 SP_IN_R 45 SP_IN_L 46 N.C. 47 HP_JACK_IN 48 GND 49 DETECT_ON 50 SPK_MUTE 51 GND_SP 52 SP_OUT_L 53 SP_OUT_L 54 SP_OUT_L 55 SP_OUT_L 56 V _SP CC Type Description GND GND Output Capacitor connect pin 2 for charge pump N ...

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... AN12943A Absolute Maximum Ratings A Parameter No. 1 Supply voltage 2 Supply current 3 Power dissipation 4 Storage temperature 5 Operating ambient temperature 6 Operating ambient atmospheric pressure 7 Operating constant gravity 8 Operating shock Note) 1: The values under the condition not exceeding the above absolute maximum ratings and the power dissipation. ...

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... AN12943A Electrical Characteristics at V Note unless otherwise specified Parameter No. Circuit current Circuit current 1A at non-signal 1 (V _SP) CC Circuit current 2A at non-signal Circuit current 1B at non-signal 3 (V _SP) CC Circuit current 2B at non-signal Circuit current 1C at non-signal 5 (V _SP) ...

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... AN12943A Electrical Characteristics at V Note unless otherwise specified Parameter No. Headphone Amplifier ( (continued): L-channel, R-channel_input (pin 28, pin 27 Output distortion L-channel 24 Output distortion R-channel 25 Maximum input level L-channel 26 Maximum input level R-channel 27 Maximum output level L-channel 28 Maximum output level R-channel ...

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... AN12943A Electrical Characteristics at V Note unless otherwise specified Parameter No. Line amplifier part (continued): L-channel, R-channel_input (pin 28, pin 27) 49 Cross talk in L-channel 50 Cross talk in R-channel Automatic signal detection part: L-channel, R-channel_input (pin 28, pin 27) Preamplifier output voltage level 51 L-channel entry ...

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... AN12943A Control Terminal, The Mode Table Note) The holding range of control voltage is shown Pin No. Description 17 Switch A on/off 31 Standby on/off 33 Switch B on/off The signal automatic detection feature 49 on/off Pin No. Description 47 HP JACK 50 SPK MUTE Electrical Characteristics. Voltage Low ...

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... AN12943A Technical Data Circuit diagrams of the input/output part and pin function descriptions Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Waveform Pin No. and voltage V _SP DC: 5.0 V Speaker output Pin 2, pin Pin 54, pin ...

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... AN12943A Technical Data (continued) Circuit diagrams of the input/output part and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Waveform Pin No. and voltage 9, GND 26, 48 DC: 0 Signal input for signal automatic ...

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... AN12943A Technical Data (continued) Circuit diagrams of the input/output part and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Waveform Pin No. and voltage DC: 5.0 V Switch A/B Pin 17 on/off 17 (at Open) ...

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... AN12943A Technical Data (continued) Circuit diagrams of the input/output part and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Waveform Pin No. and voltage 21, Switch A-1 V (4.5 V) REG 22, Switch A-2 Switch A-3 23, Switch B-1 24, Switch B-2 25 DC: ...

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... AN12943A Technical Data (continued) Circuit diagrams of the input/output part and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Waveform Pin No. and voltage 32 Beep entry 32 DC: 2. REGDIG ...

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... AN12943A Technical Data (continued) Circuit diagrams of the input/output part and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Waveform Pin No. and voltage V CC Output terminal for the HP amplifier 40 ...

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... AN12943A Technical Data (continued) Circuit diagrams of the input/output part and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Waveform Pin No. and voltage 10k Signal automatic detection function 275k on/off control ...

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... AN12943A Technical Data (continued) Control sequence at power on/off At power on/off, as for the timing of each control pin, it much more recommends a procedure below the purpose of the pop noise measure in changing. Moreover, this IC builds in a charge pump circuit and constitutes the substrate potential in IC. In order for substrate potential high impedance state and to prevent unusual operation before starting of a power supply, please do not impress voltage to each mode control pin ...

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... AN12943A Technical Data (continued) Power dissipation of package HSOP056-P-0300A Note) The characteristics listed above are reference values based on the IC design and are not guaranteed. Usage notes 1. Please carry out the thermal design with sufficient margin such that the power dissipation will not be exceeded, based on the conditions of power supply, load and surrounding temperature ...

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... AN12943A Technical Data (continued) Main characteristics 1) Speaker amplifier _SP 5 kHz, EVR 3.3 V, LINE CC CC req input (pin 27 -ATT, Automatic detection on, HPF: 400 Hz, LPF: 30 kHz SP入出力特性-8Ω Speaker I/O characteristics 8 SP output level SP出力レベル(RchRch) ...

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... AN12943A Technical Data (continued) Main characteristics (continued) 1) Speaker amplifier (continued 5 _SP 5 dBV, EVR 3.3 V, LINE input (pin 27 -ATT, Automatic detection on, LPF: 30 kHz (20 kHz to 1 kHz), LPF: 80 kHz (2 kHz to 10 kHz) SP出力周波数特性-8Ω ...

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... AN12943A Technical Data (continued) Main characteristics (continued) 2) Headphone amplifier _SP 5 kHz req HPアンプ入出力特性-EVRmax (片ch入力) Headphone amplifier I/O characteristics - EVR max (Single-channel input) HP amplifier output (dBV) HPアンプ出力[dBV](RchRch) ...

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... AN12943A Technical Data (continued) Main characteristics (continued) 2) Headphone amplifier (continued 5 _SP 5 dBV kHz to 10 kHz) HPアンプ周波数特性-EVRmax (片ch入力) Headphone amplifier frequency characteristics - EVR max (Single-channel input) HP amplifier output distortion (%) HPア ...

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... AN12943A Technical Data (continued) Main characteristics (continued) 3) Line amplifier _SP 5 kHz RL(HP) 100 , EVR 3.3 V, Automatic detection on, HPF: 400 Hz, LPF: 30 kHz CC CC req ラインアンプ入出力特性(片ch入力) Line amplifier I/O characteristics (Single-channel input) Line amplifier output (dBV) ラ ...

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... AN12943A Technical Data (continued) Main characteristics (continued) 3) Line amplifier (continued 5 _SP 5 dBV RL(HP) 100 , EVR 3.3 V, Automatic detection on, LPF: 30 kHz (20 kHz kHz), LPF: 80 kHz (2 kHz to 10 kHz) Line amplifier frequency characteristics (Single-channel input) ラインアンプ周波数特性(片ch入力) Line amplifier output distortion (%) ラ ...

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... AN12943A Technical Data (continued) Main characteristics (continued) 4) EVR _SP 5 dBV EVR減衰レベル特性-HP出力 EVR attenuate level characteristics Headphone output HP amplifier output (dBV) HPアンプ出力[dBV](RchRch) ...

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... AN12943A Technical Data (continued) Main characteristics (continued) 5) Beep _SP 5 kHz, Input resistance Square wave, EVR 3.3 V (max), Automatic detection req Beep入出力レベル特性SP負荷-8Ω Beep I/O level characteristics: Speaker load 8 SP output level SP出 ...

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... AN12943A Technical Data (continued) Main characteristics (continued) 6) Signal detection preamplifier _SP 5 kHz, R-channel IN, EVR CC CC req 3.3 V, HPF: 400 Hz, LPF: 30 kHz Signal detection preamplifier I/O characteristics 信号検出プリアンプ入出力特性 Preamplifier output (dBV) プ ...

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... AN12943A Technical Data (continued) Main characteristics (continued) 7) Signal detection threshold value V 5.0V, V _SP 5 kHz, RC constants between CC CC req pin 11 and pin 12 200 pF, Signal: LINE input (pin 27), SP input -ATT, HPF: 400 Hz, LPF: 30 kHz SP-SAVE characteristics (R-channel input) SP-SAVE特 ...

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... Switch B 4.4 V) Switch B -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 CTL-Voltage33pin) [V] CTL-Voltage (Pin 33) (V) Switch B MODE-CTL measurement diagram Measurement of AC level AN12943A 20 25 Switch BV REF B-2 2 Switch IVCC(VCC5.6V IVCC ( Switch B-2(VCC5.6V Switch B ...

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Request for your special attention and precautions in using the technical information and semiconductors described in this material (1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or ...

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