® LY8601 Rev. 1.4 Dual 0.1W Headphone Amplifier with Active-high shutdown mode FEATURES GENERAL DESCRIPTION 2.5V~5.5V Power supply. Thermal shutdown Protection. Low current shutdown mode "Click and Pop" suppression No bootstrap capacitors required Low noise during turn-on and turn-off transitions Active-high shutdown mode Lead free and green package available. (RoHS Compliant) Space Saving Package -- 8-pin MSOP package. APPLICATION Portable electronic devices Mobile Phones Microphone Preamplifier PDA’s The LY8601 is a dual 0.1W audio power amplifier. It is capable of driving 16Ω load at a continuous average output of 0.1W/0.1% distortion (THD+N) from a 5.0V power supply. The LY8601 primarily designed for high quality application in other portable communication device. And the LY8601 audio amplifier features low power consumption shutdown mode. It is achieved by driving the shutdown pin with logic high and it has an internal thermal shutdown protection feature. The unity-gain stable LY8601 can be configured by external gain-setting resistors. The LY8601 audio amplifier was designed specifically to provide high quality output power with a minimal amount of external components. The LY8601 does not require bootstrap capacitors, and the LY8601 is ideally suited for other low voltage applications or portable electronic devices where minimal power consumption is a primary requirement. PIN CONFIGURATION Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 1 FAX: 886-3-6668836 ® LY8601 Dual 0.1W Headphone Amplifier with Active-high shutdown mode Rev. 1.4 PIN DESCRIPTION SYMBOL Pin No. DESCRIPTION MSOP Vo1 1 Audio output of Left channel. IN1 2 Audio Input of Left channel. BYPASS 3 Bypass pin GND 4 Ground SHUTDOWN 5 Shutdown Pin.(when active High is shutdown mode) IN2 6 Audio Input of Right channel. Vo2 7 Audio output of Right channel. VDD 8 Power Supply APPLICATION CIRCUIT Figure 1. Typical Audio Amplifier Application Circuit Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 2 FAX: 886-3-6668836 ® LY8601 Dual 0.1W Headphone Amplifier with Active-high shutdown mode Rev. 1.4 ABSOLUTE MAXIMUN RATINGS* PARAMETER Supply Voltage Operating Temperature Input Voltage Storage Temperature Power Dissipation ESD Susceptibility Junction Temperature Soldering Temperature (under 10 sec) SYMBOL VDD TA VI TSTG PD VESD TJMAX TSOLDER RATING 6.0 -40 to 85 (I grade) -0.3V to VDD +0.3V -65 to 150 Internally Limited 2000 150 260 UNIT V ℃ V ℃ W V ℃ ℃ DC ELECTRICAL CHARACTERISTICS (VDD=5V, TA=25℃) PARAMETER Power Supply Current Shutdown Current Shutdown Voltage Input High Shutdown Voltage Input Low Output Offset Voltage SYMBOL IDD ISD VSDIH VSDIL VOS TEST CONDITION VIN = 0V, IO = 0A, No Load VIN = 0V, IO = 0A, 8Ω Load VSHUTDOWN = VDD MIN. 0.8xVDD - THD+N=0.1%,f =1kHz,RL=8Ω THD+N=0.1%,f =1kHz,RL=16Ω THD+N=0.1%,f =1kHz,RL=32Ω Po = 50mW; RL = 32Ω Total Harmonic Distortion+ Noise THD+N f = 20Hz to 20kHz CB=1.0uF,Vripple = 200mVPP Power Supply Rejection Ratio PSRR f = 1kHz, Input terminated with 50Ω. TSD Thermal Shutdown Temperature Output Power Po Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 3 FAX: 886-3-6668836 TYP. 3.5 4.0 0.1 7.0 258 114 93 MAX. UNIT 9.0 mA 10.0 mA 2.0 µA V 0.2xVDD V 50.0 mV mW - 0.4 % - 66 - dB 150 170 190 ℃ ® LY8601 Dual 0.1W Headphone Amplifier with Active-high shutdown mode Rev. 1.4 DC ELECTRICAL CHARACTERISTICS (VDD=3V, TA=25℃) PARAMETER SYMBOL Power Supply Current IDD Shutdown Current ISD Shutdown Voltage Input High VSDIH Shutdown Voltage Input Low Output Offset Voltage VSDIL VOS TEST CONDITION VIN = 0V, IO = 0A, No Load VIN = 0V, IO = 0A, 8Ω Load VSHUTDOWN = VDD MIN. 0.8xVD D - THD+N=0.1%,f =1kHz,RL=8Ω Output Power Po THD+N=0.1%,f =1kHz,RL=16Ω THD+N=0.1%,f =1kHz,RL=32Ω Po = 25mW; RL = 32Ω Total Harmonic Distortion+ Noise THD+N f = 20Hz to 20kHz CB=1.0uF,Vripple = 200mVPP Power Supply Rejection Ratio PSRR f = 1kHz, Input terminated with 50Ω. TSD Thermal Shutdown Temperature - 150 TYP. 3.0 3.5 0.1 7.0 105 73 35 - V 0.2xVDD V 50.0 mV mW 0.4 % 62 - dB 170 190 ℃ ORDERING INFORMATION LY 8 601 VV V : Package Type UL : 8-Pin MSOP Product Name A : Product Line LY : Lyontek Product Number Prefix Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 4 FAX: 886-3-6668836 MAX. UNIT 8.0 mA 9.0 mA 2.0 µA ® LY8601 Rev. 1.4 Dual 0.1W Headphone Amplifier with Active-high shutdown mode PACKAGE OUTLINE DIMENSION 8 pin MSOP Package Outline Dimension Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 5 FAX: 886-3-6668836