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AN12949A Datasheet

Download or read online Panasonic Corporation AN12949A Audio Power IC For Note PC pdf datasheet.
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DATA SHEET
AN12949A
Part No.
Package Code No.
HQFP048-P-0707
Publication date: February 2008
SDF00043BEB
1

Summary of Contents

Page 1

... DATA SHEET Part No. Package Code No. Publication date: February 2008 AN12949A HQFP048-P-0707 SDF00043BEB 1 ...

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... AN12949A Overview .. 3 Features … ...

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... AN12949A Audio Power IC for Note PC Overview AN12949A is the stereo BTL amplifier which contained the AGC circuit for clip prevention of a speaker output. This IC performs a mode change by parallel control system. (Standby function ON/OFF change etc.) Features In order to realize high efficiency of output power, it adopts CMOS power amplifier circuit. ...

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... AN12949A Application Circuit Example (Block Diagram) 36 Test4 37 Test3 38 Test2 39 40 N.C. VSSG 41 AGC_Recovery2 42 AGC_Recovery1 43 AGC_Lv1 44 AGC_Lv2 45 AGC_ON/OFF 46 AGC_Attack 47 Test1 48 1 Note) This circuit and these circuit constants show an example and do not guarantee the design as a mass-production set. BEEP_IN SP_INL 1 μF 10 kΩ ...

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... AN12949A Pin Descriptions Pin No. Pin name 1 N.C. 2 N.C. 3 N.C. 4 N.C. 5 PC1 6 PC2 7 GND 8 SP_INR 9 PREOUT_R 10 VREF 11 N.C. 12 N.C. 13 GND_SPR 14 SPOUTR – SPOUTR – SPOUTR VE 17 SPOUTR VE 18 VCCSPR Power Supply 19 VCCSPL Power Supply 20 SPOUTL VE 21 SPOUTL VE 22 SPOUTL – SPOUTL VE ...

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... AN12949A Pin Descriptions (continued) Pin No. Pin name 33 N.C. 34 SP_STBY1 35 SP_STBY2 36 N.C. 37 Test4 38 Test3 39 Test2 40 N.C. 41 VSSG 42 AGC_Recovery2 43 AGC_Recovery1 44 AGC_Lv1 45 AGC_Lv2 46 AGC_ON/OFF 47 AGC_Attack 48 Test1 Type Input Speaker standby control 1 Input Speaker standby control 2 Input Test 4 Input Test 3 Input Test 2 ...

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... AN12949A Absolute Maximum Ratings A No. Parameter 1 Supply voltage 2 Supply current 3 Power dissipation 4 Operating ambient temperature 5 Storage temperature Note) 1: The values under the condition not exceeding the above absolute maximum ratings and the power dissipation The power dissipation shown is the value at T When using this IC, refer to the P ...

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... AN12949A Electrical Characteristics at VCCSPL VCCSPR 5 25°C±2°C unless otherwise specified. Note Parameter No. Circuit current Circuit current 1 at non-signal 1 (VCCSP system) Circuit current 1B at non-signal 2 (VCCSP system) Speaker amplifier characteristics 3 SP reference output level 4 SP reference output distortion 5 SP output noise voltage ...

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... AN12949A Electrical Characteristics (Reference values for design) at VCCSPL VCCSPR 5 25°C±2°C unless otherwise specified. Note The characteristics listed below are reference values derived from the design of the IC and are not guaranteed by inspection problem does occur related to these characteristics, we will respond in good faith to user concerns. ...

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... AN12949A Control Pin Mode Table 1. AGC control (a) AGC attack time selection Pin voltage Attack time Pin 47 Low 1 ms High 2 ms (b) AGC recovery time selection Pin voltage Pin 42 Pin 43 Low Low Low High High Low High High (c) AGC ON level selection Pin voltage ...

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... AN12949A Technical Data I/O block circuit diagrams and pin function descriptions Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage 1 N.C. 2 N.C. 3 N.C. 4 N.C. VREG 5 PC1 GND VREG PC2 6 GND GND Internal circuit — ...

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... AN12949A Technical Data (continued) I/O block circuit diagrams and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage 8 VREG (4.2 V) SP_INR GND (0 V) VREG PREOUT_R – ...

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... AN12949A Technical Data (continued) I/O block circuit diagrams and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage GND_SPR SP_OUTR– 2 dBV SP_OUTR ...

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... AN12949A Technical Data (continued) I/O block circuit diagrams and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage SP_OUTL 2 dBV SP_OUTL– 2 dBV ...

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... AN12949A Technical Data (continued) I/O block circuit diagrams and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage VCCSP (5 V) VREFSP 27 DC 2.5 V GND PREOUT_L 16 dBV ...

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... AN12949A Technical Data (continued) I/O block circuit diagrams and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage VREG 32 PC4 GND 33 N. SP_STBY1 GND 35 35 SP_STBY2 GND 36 N.C. 37 ...

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... AN12949A Technical Data (continued) I/O block circuit diagrams and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage 39 39 Test2 GND 40 N.C. 41 VSSG VCCSP 42 42 AGC_Recovery2 GND VCCSP ...

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... AN12949A Technical Data (continued) I/O block circuit diagrams and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage VCCSP 46 46 AGC_ON/OFF GND VCCSP 47 47 AGC_Attack GND 48 Test1 Internal circuit ...

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... AN12949A Technical Data (continued) The explanation of the function for mainly Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. 1. Speaker amplifier 10 kΩ SP_INL 10 kΩ SP_INR SP_STBY1 34 35 SP_STBY2 1) Gain of amplifier and input impedance can be set up by the external resistance. ...

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... AN12949A Technical Data (continued) The explanation of the function for mainly (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. 1. Speaker amplifier (continued for the standby control by Pin34 and Pin35, an inside circuit is an AND form. ...

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... AN12949A Technical Data (continued) The explanation of the function for mainly (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. 2. Operation of AGC The AGC circuitry can activate to minimize distortion, raising the average volume level and it can prevent speaker from breaking when an input level is too high ...

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... AN12949A Technical Data (continued) The explanation of the function for mainly (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. 2. AGC attack time (continued) 2) AGC attack time "AGC Attack Time" can set up for 1 ms and for 2 ms. ...

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... AN12949A Technical Data (continued) The explanation of the function for mainly (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. 2. AGC attack time (continued) 3) AGC recovery time "AGC Recovery Time can be set up from ...

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... AN12949A Technical Data (continued) The explanation of the function for mainly (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. 2. AGC attack time (continued) 4) AGC short time Recovery It is 0.2 s when the signal input time of the level that AGC moves is short. ...

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... AN12949A Technical Data (continued) The power supply and logic sequence Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. The timing control of power-ON/OFF and each logic according to the procedure below should be recommended for the best pop performance caused in switching ...

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... AN12949A Technical Data (continued) ⎯ diagram D a SDF00043BEB 26 ...

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... AN12949A 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. Although indicated also in the column of the maximum rating, the maximum rating becomes an instant and the marginal value which must not exceed ...

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Request for your special attention and precautions in using the technical information and (1) If any of the products or technical information described in this book exported or provided to non-residents, the laws and regulations of the ...

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