HC820 Low Power Audio Power Amplifier HSiN Semiconductor Pte Ltd www.hsin.com.sg 1. Features Wide supply voltage range: VCC=3 ~16V Low quiescent current Minimum external components required Good ripple rejection No cross-over distortion Low power dissipation 2. Block Diagram and Pin Description 2.1 Block Diagram ６ ３ ７ １ ＋ ５ ２ ８ ４ 2.2 Pin Description Pin No. Symbol 1 COMP 2 3 4 NF IN GND Description Frequency Compensation Negative Feedback Input Ground Pin No. Symbol Description 5 OUT Output 6 7 8 VCC BS Srip Supply Voltage Bootstrap Ripple Rejection Page 1 of 6 3. Electrical Characteristics 3.1 Absolute Maximum Ratings Unless otherwise specified, T amb= 25 Parameter Symbol Supply Voltage VCC Output Peak Current IOP Power Dissipation (Tamb=50 ) PD Storage Temperature T stg Junction Temperature Tj Value 16 1.5 1 -40 ~ 150 150 Unit V A W 3.2 Electrical Characteristics Unless otherwise specified, T amb= 25 , VCC= 9V Parameter Symbol Test Conditions Supply Voltage Quiescent Output Voltage (pin 5) Quiescent Drain Current Bias Current (pin 3) VCC Min 3 V5 4 ICC IB Value Typ Max 16 V 4.5 5 V 4 0.1 12 mA uA THD=10%, f=1kHz, Rf=120 VCC=12V, RL=8 2 VCC=9V, RL=4 1.6 Output Power PO VCC=9V, RL=8 0.9 1.2 VCC=6V, RL=4 0.75 VCC=3.5V, RL=4 0.25 VCC=3V, RL=4 0.20 P O=1.2W, RL=8 , f=1kHz Rf=33 16 Rf=120 60 Vi Input Sensitivity (rms) P O=50mV, RL=8 , f=1kHz Rf=33 3.5 Rf=120 12 Input Resistance (pin 3) Rin f=1kHz 5 RL=8 , C5=103uF, Rf=120 Frequency Response (-3dB) BW C8=680pF 25~7,000 C8=220pF 25~20,000 P O=50mV, RL=8 , f=1kHz Total Harmonic Distortion THD Rf=33 0.8 Rf=120 0.4 Open Loop Voltage Gain AVO f=1kHz, RL=8 75 RL=8 , f=1kHz, Rf=33 45 Closed Loop Voltage Gain AV RL=8 , f=1kHz, Rf=120 34 Input Noise Voltage VNI 3 Input Noise Current INI 0.4 P O=1.2W, RL=8 , AV=34dB (S+N)/ R1=10k Signal to Noise Ratio 80 N R1=50k 70 RL=8 , frip =100Hz Ripple Rejection SVR 42 C6=47uF, Rf=120 Page 2 of 6 Unit W mV M Hz % dB dB uV nA dB dB 4. Test Circuit Ｖｃｃ ＋ Ｃ２ １００ｕＦ ／１５Ｖ Ｒ３ Ｃ４ ５６ ＋ ６ Ｖｉｎ ７ ０．１ｕＦ Ｃ７ １００ｕＦ ／１５Ｖ ＣＢ １ Ｃ５ ２２０ｕＦ ／１５Ｖ ＋ ＋ ３ ５ Ｒ１ ２ １０ｋ Ｒ２ １ Ｒｆ ＋ Ｖｏｕｔ ４ ８ Ｃ１ １００ｕＦ ／６Ｖ ＋ Ｃ６ ４７ｕＦ ／１０Ｖ ＲＬ Ｃ３ ０．２２ｕＦ 5. Characteristics Curve ＳＶＲ ─ Ｒｆ Ｉ ─ Ｖｃｃ D １０ Ｖｃｃ＝９Ｖ Ｃ６＝４７ Ｆ ｆ ｒ ｉ ｐ ｐ ｌ ｅ ＝１００Ｈｚ ６ ｄＢ １５ ４ ＳＶＲ Ｉ （ｍＡ） D ８ ２５ ２ ０ ３５ ４ ０ ８ １２ １６ ２０ Ｖｃｃ （Ｖ） ３ Ｖｃｃ＝９Ｖ ＲＬ ＝８ ２ ｆ２＝５ｋＨｚ １０ ８ ｐＦ ６ ４ ｆ２＝１０ｋＨｚ ２ ｆ２＝２０ｋＨｚ ２ １０ ８ ６ ４ ２ １０ ２ ４ ６ ８ １０ ２ ４５ ０ ５０ １００ Ｒｆ Ｃ Ｂ ─ Ｒ ｆ ８ ６ ４ ＣＢ ２ ４ ６ ８ １０ Ｒｆ Page 3 of 6 １５０ Ｆｒｅｑｕｅｎｃｙ Ｒｅｓｐｏｎｓｅ ＴＨＤ ─ ｆ ５ Ｖｃｃ ＝ ９Ｖ Ｒ Ｌ ＝ ８ Ｒ ＝１２０ ｆ ０ ＴＨＤ （％） Ｒｆ ＝ １２０ ＣＢ ＝ ２２０ｐＦ ＣＢ ＝ ６８０ｐＦ －１ －２ ４ ３ ２ －３ Ｐｏ ＝ ５０ｍＷ Ｐｏ ＝ ５００ｍＷ １ －４ ０ －５ ２ ４ ６８ １０ ２ １０ ４ ６８ ２ ２ ４ ６８ ３ １０ ２ ４ ６８ ２ １０ ４ １０ ４ ６８ ２ １０ ４ ６８ ２ １０ ２ ４ ６８ ３ ２ ４ ６８ ４ １０ ｆ （Ｈｚ） ｆ （Ｈｚ） Ｐｄ ─ Ｐｏ Ｐｄ ─ Ｖｃｃ Ｐｄ Ｗ Ｐｄ （Ｗ） （％） ０．８ ８０ ＲＬ＝ ４ ０．５ １６ ８ ０．６ ０．４ ６０ Ｐｄ ０．３ ４０ ０．４ ０．２ ０．２ ２０ ０ ０．１ ０ ０ ０．５ ０ １．５ １ ４ Ｖｃｃ １．８ １２ １．６ ＲＬ＝ ４ １．２ １．０ ０．８ ０．６ ０．２ ０ ０ ２ ４ ６ ８ ０ １０ １２ １４ １６ １８ ２０ Ｖｃｃ ８ ４ ｄ ＝ １０％ ｆ ＝ １ｋＨｚ Ｒｆ ＝ １２０ ０．４ Ｖｃｃ ＝ ９Ｖ Ｒ Ｌ ＝ ８ Ｒｆ ＝ １２０ ｆ ＝ １ｋＨｚ １６ ＴＨＤ （％） １．４ ８ １６ Ｖ ＴＨＤ ─ Ｐｏ Ｐｏ ─ Ｖｃｃ ２．０ １２ ８ Ｐｏ （Ｗ） Ｐｏ （Ｗ） ０ Ｖ ０．４ ０．８ Ｐｏ （Ｗ） Page 4 of 6 １．２ ２０ 6. Application Circuit Ｖｃｃ ＋ Ｃ２ １００ Ｆ ／１５Ｖ Ｒ３ Ｃ４ ５６ ＋ ６ Ｖｉｎ ０．１ Ｃ７ １００ Ｆ ／１５Ｖ Ｃ Ｂ １ ７ Ｃ５ ２２０ Ｆ ／１５Ｖ ＋ ＋ ３ ５ Ｒ１ ２ １０ｋ Ｒ２ １ Ｒｆ ＋ Ｆ ４ ８ Ｃ１ １００ Ｆ ／６Ｖ Ｃ６ ４７ Ｆ ／１０Ｖ ＋ ＲＬ Ｃ３ ０．２２ Ｆ Fig 6.1 Ｖｃｃ Ｃ２ １００ Ｆ ／１５Ｖ ＋ Ｃ４ ０．１ Ｆ ＲＬ ＣＢ ６ Ｖｉｎ ３ １ ７ ＋ ５ Ｒ１ ２ １０ｋ Ｒ２ １ Ｒｆ ＋ ４ Ｃ１ １００ Ｆ ／６Ｖ ＋ ８ ＋ Ｃ６ ４７ Ｆ ／１０Ｖ Fig 6.2 Page 5 of 6 Ｃ５ ２２０ Ｆ ／１５Ｖ Ｃ３ ０．２２ Ｆ 7. Package Dimensions Page 6 of 6