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| BA5417 Audio ICs High-output dual power amplifier BA5417 The BA5417 is a 6 to 15V-compatible dual power amplifier developed for use radio cassette players. It is equipped with standby switching functions for excellent total harmonic distortion and other basic characteristics. !Applications Radio cassette / Mini compo players !Features 1) High output. POUT = 2.8W (VCC = 9V, RL 3, THD = 10%) POUT = 5.0W (VCC = 12V, RL 3, THD = 10%) 2) Excellent audio quality THD = 0.1% (f = 1kHz, PO = 0.5W) VNO = 0.3mVrms (Rg = 10k) RR = 55dB (fRR = 100Hz) 3) Wide supply voltage operating range (VCC = 6.0V to 15.0V). 4) Switching noise ("pop" noise) generated when the power is switched on and off is small. 5) Ripple mixing when motor starts has been prevented. 6) Built-in thermal shutdown circuit. 7) Built-in standby switch. Output is not influenced by the standby pin voltage. 8) Soft clipping. !Absolute maximum ratings (Ta = 25C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 201 152 Unit V W C C -20 ~ +75 -55 ~ +150 1 Must be within standby values. 2 Ta=75C(when using infinite heatsink) !Recommended operating conditions (Ta = 25C) Parameter Power supply voltage Symbol VCC Limits 6.0 ~ 15.0 Unit V 1 Audio ICs (N.C.) 2 !Block diagram BS BS2 3 OUT2 4 VCC VCC T.S.D 5 OUT1 6 BS BS1 7 8 POWER-GND POWER GND ST.BY STBY 9 - 10 FILTER NF1 11 IN1 12 IN2 13 NF2 30k 14 PRE-GND1 PRE GND1 PRE 15 BA5417 PRE-GND2 GND2 + 30k 45 45 30k - + 30k FILTER BA5417 Audio ICs !Electrical characteristics _ (unless otherwise noted, Ta=25C, Vcc=9.0V, RL=3, RF=120, Rg=600, f=1kHZ, OTL mode) Parameter Quiescent current Rated output voltage 1 Rated output voltage 2 Closed-loop voltage gain Output noise voltage Total harmonic distortion Ripple rejection Crosstalk Circuit current (with standby switch off) Standby pin current when on Standby pin control voltage Not activated Activated Symbol IO Min. - 2.2 4.0 43 - - 42 48 - - 3.5 - Typ. 22 2.8 5.0 45 0.3 0.1 55 65 0 0.15 - - Max. 45 - - 47 1.0 1.0 - - 20 0.4 - 1.2 Unit mA W W dB VIN=0Vrms TDH=10% TDH=10%, VCC=12V - Coniditions POUT1 POUT2 GVC VNO THD RR CT IOFF ISIN VSTH VSTL mVrms Rg=10k, DIN AUDIO % dB dB A mA V V VSTBY=VCC - - POUT=0.5W fRR=100Hz, VRR=-10dBm VO=0dBm - !Measurement circuit T.S.D + 30k 30k - + 30k ST.BY VCC GND GND1 PRE 1 (N.C.) 2 + 100 C2 3 4 1000 + C4 5 C6 + 6 7 8 9 10 11 12 13 14 100 + C5 + C8 47 R2 2.2 RF1 120 + + C9 47 RF2 120 C10 47 + C3 R1 2.2 RL 1000 1000 RL C1 0.15 C7 0.15 1 1 VSTBY=3.5V ~ VCC Fig.1 PRE 15 GND2 BS BS POWER FILTER - 30k 45 45 BA5417 Audio ICs !Application example OTL mode circuit T.S.D + 30k 30k - 30k RNF2 + 30k RNF1 ST.BY VCC 45 45 GND1 PRE 1 N.C. 2 C2 100 + 3 4 1000 + C4 5 C6 + 6 7 8 9 10 11 12 13 14 + R2 2.2 C8 47 R1 2.2 C1 0.15 1000 1000 47 C7 0.15 IN1 IN2 SP VCC SP POWER GND Fig.2 BTL mode circuit T.S.D + 30k 30k - + 30k ST.BY VCC 45 45 GND1 PRE 1 N.C 2 + 100 C2 3 4 1000 + C4 5 C6 + 6 7 8 9 10 11 12 13 14 100 + C5 + R2 2.2 C8 47 + C3 R1 2.2 C1 0.15 SP 10k 1000 + C9 47 1000 VCC C7 0.15 VST.BY Note : 3pin,5pin need coupling capacitors (C3,C5 100F) for DC offset voltage. Fig.3 + RF1 120 C10 47 1k PRE 15 GND2 GND BS BS POWER FILTER + + C3 + C5 + C9 + + 100 RF1 120 CIN CIN RF2 120 C10 47 30k PRE 15 GND2 GND BS BS POWER FILTER - - BA5417 Audio ICs !Electrical characteristics OTL mode TOTAL HARMONIC DISTORTION : THD (%) 10 *** *** OUTPUT NOISE VOLTAGE : VNO (mVrms) RATED OUTPUT POWER : POUT (W) THD=10% f=1kHz DIN AUDIO 8 Input both channels RL=3 RL=4 VCC=9V RL=3 Input both channels 20 f=100Hz DIN AUDIO 1k DIN AUDIO 10 10k 20080k BPF 5 10k ch1 *** 0.4 0.3 6 2 1 0.5 0.2 0.1 0.05 ch2 1k ch1 ch2 0.2 ch1 ch2 0.1 Rg=10k DIN AUDIO 0.0 0 5 10 15 20 4 RL=8 2 100 ch1 ch2 0.5 1 23 5 0 0 5 10 15 20 0.02 0.05 0.1 0.2 POWER SUPPLY VOLTAGE : VCC (V) OUTPUT POWER : PO (W) POWER SUPPLY VOLTAGE : VCC (V) Fig.4 Rated output power vs. Power supply voltage Fig.5 Total harmonic distortion vs. Output power Fig.6 Output noise voltage vs. Power supply voltage 80 80 50.00 500.0 QUIESCENT CURRENT : IQ (mA) CROSS TALK LEVEL : CT (dB) 70 60 50 40 30 20 VCC=9V ch21 VO=0dBm Rg=600 RL=3 f=20Hz *** 15kHzLPF =5010k ***DIN AUDIO =20k50k ***20080kHzBPF 20 50 100 300 1k 3k 10k 20k 50k RIPPLE REJECTION : RR (dB) 70 60 50 40 30 20 15kHz LPF 40 400 ch12 30 IQ VST.BY=VCC 10 ISIN (Standby pin supply current) 4 8 12 16 300 ch1 VCC=9V RL=3 VRR=-10dBm DIN AUDIO (f=5010kHz) Rg=600 20080kHz ch2 BPF 20 200 100 20 50 100 300 1k 3k 10k 20k 50k .0000 .0000 .0000 20.00 FREQUENCY : f (Hz) FREQUENCY : f (Hz) POWER SUPPLY VOLTAGE : VCC (V) Fig.7 Crosstalk vs. Frequency Fig.8 Ripple rejection vs. Frequency Fig.9 Quiescent standby pin supply current vs. Power supply voltage MAXIMUM POWER DISSIPATION : PdMAX (W) 12 20 POWER DISSIPATION : Pd (W) POWER DISSIPATION : Pd (W) OTL Stereo 10 8 RL=3 6 RL=4 4 2 0 0 RL=8 ALUMINUM 16 A B 5 4 3 2 1 0 RL=4 f=1kHz Drive both VCC=9V channels 0.3 0.5 1 2 3 5 VCC=12V ICC 1.0 0.8 0.6 0.4 0.2 12 8 C 4 D 4 8 12 16 20 24 0 0 25 50 75 100 125 150 175 POWER SUPPLY VOLTAGE : VCC (V) AMBIENT TEMPERATURE : Ta (C) OUTPUT POWER : Po (W) Fig.10 Maximum power dissipation vs. Power supply voltage Fig.11 Thermal derating curve Fig.12 Power dissipation vs. Power supply voltage (RL=4) CIRCUIT CURRENT : ICC (A) A : INFINITE HEAT SINK jc=5.0C / W B : 100cm2 x 2.0mm C : 25cm2 x 2.0mm D : WITHOUT HEAT SINK c=56.8C / W 6 Pd VCC=15V 1.2 STBY PIN CURRENT : ISIN (mA) BA5417 Audio ICs RL=8 f=1kHz Drive both 8 channels 7 6 5 4 3 2 1 0 0.1 0.2 0.3 0.5 VCC=9V 0.0 Pd VCC=15V VCC=12V ICC 0.2 0.4 0.6 60 CLOSED LOOP GAIN : GVC(dB) POWER DISSIPATION : Pd (W) 0.8 CIRCUIT CURRENT : ICC (A) 50 40 30 20 10 0 CNF=100F CNF=47F CNF=22F T=Normal VCC=9V RL=6 1~10k DIN AUDIO 10k~ WIDE BAND OTL=(Stereo) 100 1k 10k 100k 1 2 3 5 OUTPUT POWER : Po (W) FREQUENCY : f (Hz) Fig.13 Power dissipation vs. Power supply voltage (RL=8) Fig.14 Closed loop gain vs. Frequency BTL mode TOTAL HARMONIC DISTORTION : THD (%) 100 100 10.0 RIPPLE REJECTION : RR (dB) OUTPUT POWER : PO(dB) T=Normal VCC=9V RL=6 Heat sink used 10.0 ( 4.8x5.4x0.1cm) f=10kHz 1.0 80 70 60 50 40 30 20 10 1.0 f=1kHz f=100Hz 0.1 0.1 T=Normal f=1kHz THD=10% 200HzHPF 20kHzLPF Heat sink used( 4.8x5.4x0.1cm) 2 4 6 8 10 12 14 16 18 20 T=Normal RL=6 f=100Hz VPP=-10dBm Heat sink used( 4.8x5.4x0.1cm) 20kHzLPF 2 4 6 8 10 12 14 16 18 20 0.0 0 0.01 0.1 1.0 10.0 0 POWER SUPPLY : VCC (V) OUTPUT POWER : PO (W) POWER SUPPLY : VCC (V) Fig.15 Rated output power vs. Power supply voltage Fig.16 Total harmonic distortion vs. Output power Fig.17 Ripple rejection vs. Power supply voltage 60 CLOSED LOOP GAIN : GVC(dB) 50 49.0 40 30 20 10 0 POWER DISSIPATION : Pd (W) STARTING TIME : tS (S) T=Normal f=1kHz RL=6 8 200HzHPF 20kHzLPF 7 Heat sink used ( 4.8x5.4x0.1cm) 6 5 4 2.0 2 T=Normal VCC=9V RL=6 f=1kHz 1.5 1.5 ICC (A) T=Normal VCC=9V RL=6 VIN=-45dB Heat sink used( 4.8x5.4x0.1cm) 100 1k 10k 100k 15 Pd C= VC 3 2 1 V V CC =1 2V 1.0 7 =9V VCC 0.5 0.5 ICC 1.0 OUTPUT POWER : Po (W) 10 20 0.1 0 10 50 100 400 1000 FREQUENCY : f (Hz) RIPPLE FILTER CAPACITOR : CRF (R) Fig.18 Closed loop gain vs. Frequency Fig.19 Power dissipation vs. Power supplyvoltage (RL=6) Fig.20 Starting time vs. Ripple filter capacitor BA5417 Audio ICs 1.0 500 OUTPUT VOLTAGE : VOUT1 (V) NEGATIVE FEEDBACK VOLTAGE : VNF1 (V) 10 T=Normal 9 RL=6 8 7 6 5 4 3 2 1 0 0 2 4 6 Vout1 STARTING TIME : tS (S) 300 200 STARTING TIME : tS (S) 400 VCC=9V RL=6 100 T=Normal VIN=-39.0dBm 0.1 1.0 10 T=Normal RL=6 VIN=-39.0dBm f=1kHz 200HPF 200KLPF 0.1 0 2 4 6 8 10 12 14 16 18 20 VNF1 8 10 12 14 16 18 80 INPUT CAPACITOR : CIN (F) POWER SUPPLY : VCC (W) POWER SUPPLY : VCC (V) Fig.21 Starting time vs. Input capacitor Fig.22 Starting time vs. Power supply voltage Fig.23 Output voltage Nagative teed back voltage vs. Power supply voltage 50 OUTPUT OFFSET VOLTAGE : VO(mV) RIPPLE REJECTION : RR(dB) T=Normal RL=6 VO=Vout1-Vout2 70 f=100Hz 60 50 40 30 20 10 0 40 f=1kHz 30 20 10 T=Normal VCC=9V RL=6 VIN=-10dBm 1.0 10 100.0 1000. 0 0 2 4 6 8 10 12 14 16 18 20 POWER SUPPLY : VCC (V) RIPPLE CAPACITOR : CRF (F) Fig.24 Output offset voltage vs. Power supply voltage Fig.25 Ripple rejection vs. Ripple filter capacitor !External dimensions (Units : mm) 30.00.3 28.50.2 R1.6 3.00.2 14.80.3 12.350.3 20.20.5 0.5 9.40.3 1 15 1.2 8.00.3 4.20.5 0.60.1 1.2 0.8 0.6 1.00 2.0 HSIP15 |
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