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AN12945A Datasheet

Download or read online Panasonic Corporation AN12945A Monophonic Audio Power IC With Built-in AGC pdf datasheet.
Also see for AN12945A: Datasheet #2 (5 pages)



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DATA SHEET
AN12945A
Part No.
Package Code No.
ULGA020-L-0404
Publication date: February 2008
SDF00041BEB
1

Summary of Contents

Page 1

... DATA SHEET Part No. Package Code No. Publication date: February 2008 AN12945A ULGA020-L-0404 SDF00041BEB 1 ...

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... AN12945A Overview ... 3 Features … ...

Page 3

... Monophonic audio power IC with built-in AGC Overview AN12945A is the monophonic BTL amplifier which contained the AGC circuit for clip prevention of a speaker output possible to set up the on-level of AGC arbitrarily by adjustment of external resistance power supply operation is also possible for small signal system circuits other than the output stage. ...

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... AN12945A Application Circuit Example (Block Diagram) 1 μF VREF 16 Audio input 33 kΩ 17 0.47 μF 47 kΩ 28 dBV 22 dBV 18 For LPF GND 19 20 16 dBV 0.47 μF Note) This circuit and these circuit constants show an example and do not guarantee the design as a mass-production set. ...

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... AN12945A Pin Descriptions Pin No. Pin name Type 1 SP_IN Input 2 AGC_CAP Input 3 GND GND 4 V Input REFSP 5 V Power supply CCSP 6 SP_OUT_ Output 7 GND_SP GND 8 SP_OUT_ Output 9 V _OUT Output REG 10 AGC_CTL Input 11 Gv_CTL TTL Input TTL Input 12 SP_SAVE 13 STANDBY TTL Input ...

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... AN12945A 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. 2: The power dissipation shown is the value 75°C for the independent (unmounted) IC package. ...

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... AN12945A Electrical Characteristics 25°C±2°C unless otherwise specified. Note Parameter No. Circuit current Circuit current 1A at non-signal Circuit current 2A at non-signal CCSP Circuit current 1B at non-signal (SP power save On) Circuit current 2B at non-signal CCSP (SP power save On) ...

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... AN12945A Electrical Characteristics 25°C±2°C unless otherwise specified. Note Parameter No. Voltage range holding mode of control pins Gain 6 dB/0 dB control 21 Voltage range holding 6 dB Gain 6 dB/0 dB control 22 Voltage range holding 0 dB Standby On/Off 23 Voltage range holding Off Standby On/Off ...

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... AN12945A 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 Speaker output V positive 6 Pin6 8 Pin8 opposite DC 2 dBV GND (5.0 V) ...

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... AN12945A 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 9 It controls AGC- On level & On/Off 10 DC 10 81k Gain 0dB/6dB Control terminal ...

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... AN12945A 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 3 (3.0 V) REG Ripple removal condenser terminal for the ...

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... AN12945A 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 0.0 V AGC amplifier output terminal 16 dBV ...

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... AN12945A Technical Data (continued) Control sequence at power On/Off Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. At power power ON,as for the timing of each control pin, it much more recommends a procedure below the purpose of the pop noise measure in changing ...

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... AN12945A Technical Data (continued) Control sequence at power On/Off (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. At power off 2. At power 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 ...

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... AN12945A Technical Data (continued) ⎯ diagram D a SDF00041BEB 15 ...

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... AN12945A Usage Notes Please carry out the thermal design with sufficient margin such that the power dissipation will not be exceeded, based 1. 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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