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AN12969A Datasheet

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DATA SHEET
AN12969A
Part No.
Package Code No.
UBGA031-W-3030AEA
Publication date: February 2008
SDE00027AEB
1

Summary of Contents

Page 1

... DATA SHEET Part No. Package Code No. Publication date: February 2008 AN12969A UBGA031-W-3030AEA SDE00027AEB 1 ...

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... AN12969A Overview . 3 Features … ...

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... C bus control compatible AGC built-in stereo BTL amplifier IC 2 (For driving a piezoelectric speaker) Overview AN12969A has a built-in AGC function in a stereo BTL amplifier for driving a piezoelectric speaker to prevent noise at output clip, and has a built-in a charge-pump power supply for driving speaker output amplifiers. 2 And I C bus control method is applied in switching of each mode like some Standby function is turned ON/OFF ...

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... AN12969A Application Circuit Example GND_CP F6 GND D3 PREOUT_R D4 1 500 pF 10 kΩ INPUT_R FB_R D5 0.1 μF 10 kΩ INPUT_L FB_L D6 0.1 μF 10 kΩ 10 kΩ 1 500 pF PREOUT_L C5 GND VCC_D 1.7 V 3 pin Operate voltage VCC_D 1.8 V Operate > 1.62 V Shut-down < 0.18 V 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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... AN12969A Pin Descriptions Pin No. Pin name A1 GND_SPL A2 LOUT_POS A3 VCC A4 VCC_D A5 SCL A6 GND B1 LOUT_NEG B2 VREF B3 S.D B4 GND B5 SDA B6 N.C. C1 ROUT_NEG C2 VCC_SP C3 VREF_SP C4 GND C5 PREOUT_L C6 N.C. D1 GND_SPR D2 N.C. D3 GND D4 PREOUT_R D5 FB_R D6 FB_L Type Ground Grounding (For speaker L-channel) Output Speaker output L-channel () ...

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... AN12969A Pin Descriptions Pin No. Pin name E1 ROUT_POS E2 N.C. E3 N.C. E4 VREG_PRED E5 VBAT E6 VBAT F1 GND F2 CPOUT F3 CPOUT F4 C1P F5 C1N F6 GND_CP Type Output Speaker output R-channel () N.C. N.C. Output VREG capacitor pin for charge pump gate-driver Power Supply V for Charge-pump BAT Power Supply V for Charge-pump ...

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... AN12969A Absolute Maximum Ratings A No. Parameter 1 Supply voltage 2 Supply current 3 Power dissipation 4 Operating ambient temperature 5 Storage temperature Note 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 allowable value might not be exceeded based on the conditions of power supply voltage, load, and ambient temperature ...

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... AN12969A Electrical Characteristics 25°C±2°C, V Note) Unless otherwise specified Parameter No. Circuit Current 1 Circuit current 1A at non-signal 2 Circuit current 2A at non-signal 3 Circuit current 3A at non-signal 4 Circuit current 1B at non-signal 5 Circuit current 2B at non-signal 6 Circuit current 3B at non-signal 7 Circuit current 1C at non-signal ...

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... AN12969A Electrical Characteristics (continued) 25°C±2°C, V Note) Unless otherwise specified Parameter No interface 15 SCL, SDA signal input Low level 16 SCL, SDA signal input High level 17 SDA signal output Low Level 18 SCL, SDA signal input current Max. frequency of SCL signal ...

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... AN12969A Electrical Characteristics (Reference values for design) Note) Unless otherwise specified, 25°C±2° The characteristics listed below are reference values for design of the IC and are not guaranteed by inspection problem does occur related to these characteristics, Matsushita will respond in good faith to user concerns. ...

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... AN12969A Electrical Characteristics (Reference values for design) Note) Unless otherwise specified 25°C±2° The characteristics listed below are reference values for design of the IC and are not guaranteed by inspection problem does occur related to these characteristics, Matsushita will respond in good faith to user concerns. ...

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... AN12969A Technical Data C-bus Mode 1) Write Mode SDA SCL SLAVE ADDRESS START CONDITION Two transmission messages (i.e. the SCL and SDA) are sent in synchronous serial transmission. The SCL is a clock with fixed frequency. The SDA indicates address data for the control of the reception side, and is sent in parallel in synchronization with the SCL ...

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... AN12969A Technical Data (continued C-bus Mode (continued) 1) Write Mode (continued) 2 (a) I C-bus PROTOCOL Slave address : 10110110 (B6Hex) Format (Normal) S Slave address W Start Write condition Mode : 0 (b) Auto increment Auto increment mode (When the data is sent in sequence, the sub-address will change one by one and the data will be input.) ...

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... AN12969A Technical Data (continued C-bus Mode (continued) 1) Write Mode (continued) (e) AGC-attack-time selection Write Attack 01Hex Register time 0 (g) AGC-on-level selection at V Write 01Hex Register ...

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... AN12969A Technical Data (continued C-bus Mode (continued) 2) Read Mode 2 (a) I C-bus PROTOCOL Slave address 10110111(B7Hex) Format S Slave address R Read Mode : 1 Note) At the slave address input sequentially output from Data 0. There is no necessity for inputting the sub-address. (b) Sub-address Byte and Data Byte Format ...

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... AN12969A Technical Data (continued) 2. Operating temperature guarantee of I The performance in the ambient temperature of operation is guaranteed theoretically in the design at normal temperature (25°C) by inspecting speed of the clock that is about 50% earlier regarding the operating temperature guarantee of I Control. But the following characteristics are logical values derived from the design of the IC and are not guaranteed by inspection ...

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... AN12969A Technical Data (continued) 4. I/O block circuit diagram and pin function descriptions Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. Pin Waveform No. and voltage GND_SPL VCC_SP(6.1 V) LOUT_POS A2 DC 2.7 V VCC A3 3.0 V(typ.) VCC_D A4 1 ...

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... AN12969A Technical Data (continued) 4. I/O block circuit diagram and pin function descriptions (continued) Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. Pin Waveform No. and voltage VCC_SP(6.1 V) LOUT_NEG B1 DC 2.7 V VREG(5 V) VREF ...

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... AN12969A Technical Data (continued) 4. I/O block circuit diagram and pin function descriptions (continued) Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. Pin Waveform No. and voltage SDA VCC_SP(6.1 V) ROUT_NEG C1 DC 2.7 V VCC_SP C2 2× ...

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... AN12969A Technical Data (continued) 4. I/O block circuit diagram and pin function descriptions (continued) Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. Pin Waveform No. and voltage VCC_SP(6.1 V) VREF_SP PREOUT_L C5 DC 2.5 V GND_SPR ...

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... AN12969A Technical Data (continued) 4. I/O block circuit diagram and pin function descriptions (continued) Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. Pin Waveform No. and voltage VREG(5 V) FB_R D5 DC 2.5 V GND VREG(5 V) FB_L D6 DC 2.5 V GND VCC_SP(6 ...

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... AN12969A Technical Data (continued) 4. I/O block circuit diagram and pin function descriptions (continued) Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. Pin Waveform No. and voltage VBAT E5 E6 3.8 V(typ.) VBAT (3.8 V) CPOUT F2 F3 VBAT2 VBAT (3 ...

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... AN12969A Technical Data (continued) 5. Power supply and logic sequence Note) The characteristics listed below are reference values derived from the design of the IC 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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... AN12969A Technical Data (continued) 5. Power supply and logic sequence (continued) Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. 3) The sequence of the charge-pump BAT CC_D Power supply Off Off Standby On CPOUT ...

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... C interface operates with power supply applied High voltage at shut-down pin Please use the power supply applied CC_D . V is supplied from built-in charge-pump with output CC_SP CC_SP AN12969A output maximum amplitude V BAT 2 pin pin circuit operates with V CC_D or apply voltage from the outside ...

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... AN12969A Technical Data (continued) 6. Explanation on mainly used functions (continued) Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. 6.2 Speaker amplifier μ 10 kΩ 0.1 F INPUT_L 1) The gain for a speaker amplifier can be adjusted, as the gain for a input amplifier can be set with an external resistance. ...

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... AN12969A Technical Data (continued) 6. Explanation on mainly used functions (continued) Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. 6.2 Speaker amplifier (continued) 3) With the smaller capacity of the input AC coupling capacitor, HPF, which removes unwanted low frequency element, can be constructed. When input resistance is assumed as R1, and AC coupling capacitor as C1 π ...

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... AN12969A Technical Data (continued) 6. Explanation on mainly used functions (continued) Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. 6.4 Cautions 1) Cautions about AGC Signal output in the input amplifier is detected and converted to forward current. Compared this forward current with reference voltage, if the forward current is larger, AGC turns ON ...

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... AN12969A Technical Data (continued T diagram D a SDE00027AEB 29 ...

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... AN12969A Usage Notes 1. This IC is intended to be used for general electronic equipment [cellular phones]. Consult our sales staff in advance for information on the following applications: Special applications in which exceptional quality and reliability are required the failure or malfunction of this IC may directly jeopardize life or harm the human body. ...

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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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