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Part: YDA135
Category:
Multimedia
-> Audio
-> Amplifiers
Description: 5-20Wx2 Digital Audio Power Amplifier Controller
Company: Yamaha Corporation of America
Datasheet: Download YDA135 datasheet File size : 294 kB
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Datasheet text preview:
YDA135
D-20
STEREO 5W-20W DIGITAL AUDIO POWER AMPLIFIER CONTROLLER
Outline
YDA135 is digital audio power amplifier controller IC that is output power of 20W/channel on a 12V power supply operation. This IC is combined with the general purpose Power MOSFET (hereafter called Power MOSFET) that are connected through BTL can configure an audio power amplifier with output power of 5W or 20W. This IC accepts analog signal, converts it into digital pulse signal by the digital modulation circuitry and outputs the digital pulse signal for driving Power MOSFET. The Power MOSFET that is driven by this IC outputs large current digital pulses. The digital pulse signal is converted to audio signal through an external low pass filter, and sent to the speakers. By using a general purpose Power MOSFET, very low cost digital amplifier system is configured. By adapting Yamaha's proprietary modulation system, the device provides low distortion and high signal to noise ratio at the highest level among digital amplifiers in the equiralent class. This IC has the overcurrent detection function that detects overcurrent state by voltage drop of external resistors that detects the output current. This IC has the high temperature detection function that detects high temperature by resistor value change of external element that detects temperature. The operation of this IC is limited by using two control signal, SLEEP or MUTE. SLEEP signal stops all functions of this IC, and restrain to the power consumption at the minimum. MUTE signal brings Power MOSFET into nonconductive state, and mute the output of the device. This IC is configured by two power supply ; 5V for signal processing circuits, and 12V for Power MOSFET driving circuits.
Features
Highoutputpower 20WVDDP=12.0VRL=4THD+N<10% Highefficiencyoperation 80%VDDP=12.0VRL=4Po=20W 85%VDDP=12.0VRL=8Po=10W Lowdistortion(THD+N) 0.03%1kHzRL=4Po=7W Highsignaltonoiseratio 100dBVDDP=12.0VInputsensitivity1.0VRL=4 97dBVDDP=12.0VInputsensitivity150mVRL=4 Lowconsumptioncurrent(12V/5Vpowersupply) WhenPowerMOSFET(FW332)isconnected. 30mA/7mAVDDP=12.0Vnosignal 0.1mA/7mAVDDP=12.0Vatmute 1A/1AVDDP=12.0Vatsleep CS(Channelseparation) 80dB1kHz Anygainsettingbyexternalresistors SleepfunctionbySLEEPterminal OutputmutefunctionbyMUTEterminal Overcurrentdetectionfunction (Powersupplyshort-circuiting,Groundshortcircuiting,Loadshort-circuiting) Hightemperaturedetectionfunction Popnoisesuppressionfunctionatturn-onand turn-off 48-pinplasticLQFP(YDA135-VZ)
YDA135CATALOG CATALOG No.:LSI-4DA135A2 2003.3
YDA135
Terminal configuration
YDA135-VZ
PVSSL
LP_R
LN_L
LP_L
36
35
34
33
32
31
30
29
28
27
26
SENSENL PVDDL SENSEPL N/C CDIL CDOL N/C NFNL NFPL NFINL INL VDDL
37 38 39 40 41 42 43 44 45 46 47 48 1 2 3 4 5 6 7 8 9 10 11 12
25 24 23 22 21 20 19 18 17 16 15 14 13
PVSSR
HN_R
LN_R
HP_R
HP_L
HN_L
N/C
N/C
SENSENR PVDDR SENSEPR N/C CDIR CDOR N/C NFNR NFPR NFINR INR VDDR
PROT
TEST
N/C
VSSL
2
VREFR
MUTE
SLEEP
VREFL
VSSR
N/C
TPP
N/C
YDA135
Terminal function
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Name N/C VREFL VSSL MUTE SLEEP PROT N/C TPP TEST VSSR VREFR N/C VDDR INR NFINR NFPR NFNR N/C CDOR CDIR N/C SENSEPR PVDDR SENSENR PVSSR N/C HP_R HN_R LN_R LP_R LP_L LN_L HN_L HP_L N/C PVSSL SENSENL PVDDL SENSEPL N/C CDIL CDOL N/C NFNL NFPL NFINL INL VDDL I/O Function Nonconnection Lchannelreferencevoltageoutput Groundfor5VpowersupplyofLchannel Mutecontrol Sleepcontrol Warningsignaloutputfordetectionfunction Nonconnection Hightemperaturedetection ICtest.ConnecttoVSSR Groundfor5VpowersupplyofRchannel Rchannelreferencevoltageoutput Nonconnection 5VPowersupplyofRchannel Rchannelanalogsignalinput Rchannelinputgainsetting Rchannelpositivesidefeedbackinput Rchannelnegativesidefeedbackinput Nonconnection Rchannelofftimesetting(output) Rchannelofftimesetting(input) Nonconnection Rchannelovercurrentdetection(PVDDside) 12VpowersupplyofRchannel Rchannelovercurrentdetection(PVSSside) Groundfor12VpowersupplyofRchannel Nonconnection RchannelpositivesidePMOSdriving RchannelpositivesideNMOSdriving RchannelnegativesideNMOSdriving RchannelnegativesidePMOSdriving LchannelnegativesidePMOSdriving LchannelnegativesideNMOSdriving LchannelpositivesideNMOSdriving LchannelpositivesidePMOSdriving Nonconnection Groundfor12VpowersupplyofLchannel Lchannelovercurrentdetection(PVSSside) 12VpowersupplyofLchannel Lchannelovercurrentdetection(PVDDside) Nonconnection Lchannelofftimesetting(input) Lchannelofftimesetting(output) Nonconnection Lchannelnegativesidefeedbackinput Lchannelpositivesidefeedbackinput Lchannelinputgainsetting Lchannelanalogsignalinput 5VpowersupplyofLchannel
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I I O
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I O I I
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IH
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IH
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OH OH OH OH OH OH OH OH
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IH
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IH
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I O
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I I O I
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Note.I/O:5Vinput/5Voutput,IH/OH:12Vinput/12Voutput 3
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