MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone Dual 2W Power Amplifiers / Stereo Headphone Low Voltage, Pop Noise Free Function FEATURES APPLICATIONS ‧Operation range: 2.4V ~ 6.5V ‧Shutdown Current 0.4uA at 5V ‧Output power, THD+N=1% BTL, RL=3Ω, 2.3W at 5V BTL, RL=4Ω, 2W at 5V, 0.8W at 3.3V, 500mW at 2.7V BTL, RL=8Ω, 1.2W at 5V, 0.5W at 3.3V, 350mW at 2.7V SE, RL=8Ω, 300mW at 5V,130mW at 3.3V, 85mW at 2.7V SE, RL=32Ω, 90mW at 5V, 40mW at 3.3V, 25mW at 2.7V ‧Headphone sense ‧Unity-gain stable ‧pop noise free control (extra function for pin7) ‧Space-saving TSSOP20, enhance thermal pad ‧Desktop computer’s sound card ‧Portable audio devices ‧Portable digital TV ‧MP3 peripheral ‧Handheld games ‧Cross-reference: LM4863 DESCRIPTION The MS6863 is a low distortion power amplifier that can drive 2*2W of continuous average power into a dual 4Ω bridged-tied load (BTL) or 2 * 90mW into stereo 32Ω single ended (SE) loads headphone. It can automatically switch between dual BTL and stereo SE modes utilizing a headphone sense pin. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications. The unity gain stable MS6863’s gain is set by external gain-setting resistors. The MS6863 has good feature for portable equipment, these features include the low voltage operation, micropower consumption shutdown mode, enhance thermal pad and small package TSSOP20, make the MS6863 ideally suited for use in portable audio equipments. The MS6863 has an extra selection for pin7 to achieve pop noise free in shutdown control. BLOCK DIAGRAM VDD -INA - +INA + -OUT A A1 BYPASS + -INB - +INB + A2 +OUT A -OUT B B1 SD HP-IN Power Manage + B2 +OUT B GND REV 4 1/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone PIN CONFIGURATION Symbol Pin Description SHUTDOWN places the entire device in shutdown mode when held high. TTL compatible input. SD 1 +OUTA 3 Bridged-tied load positive output A. -OUTA 5 Left channel output or bridged-tied load negative output A. -INA 6 Negative input A. +INA 8 Positive input A. +INB 13 Positive input B. BYPASS 14 BYPASS is a capacitor to the voltage divider for the internal mid-supply bias. This terminal should be connected to a 0.1-μF to 10-μF capacitor CB. -INB 15 Negative input B -OUTB 16 Right channel output or bridged-tied load negative output B. +OUTB 18 Bridged-tied load positive output B. HP-IN 20 Headphone input detection. A logical low sets BTL mode, a logical high sets SE mode. VDD 4, 17 2, 9, 10 11, 12, 19 GND GND (SDPR) 7 Supply voltage Ground Connected to ground, it is compatible for LM4863 SDPR: Shutdown Power Preparation. Pop noise free in shutdown control, please refer to application information TSSOP20 SD 1 20 HP-IN GND 2 19 GND +OUTA 3 18 +OUTB VDD 4 17 VDD -OUTA 5 16 -OUTB -INA 6 15 -INB GND(SDPR) 7 14 BYPASS +INA 8 13 +INB GND 9 12 GND GND 10 11 GND Thermal Pad MS6863 REV 4 2/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone ORDERING INFORMATION Package Part number Packaging Marking Transport Media 20Pin TSSOP (lead free) MS6863TGTR MS6863G 2.5k Units Tape and Reel 20Pin TSSOP (lead free) RoHS Compliance MS6863TGU MS6863G 75 Units Tube ABSOLUTE MAXIMUM RATINGS Symbol Parameter Rating Unit 6.5 V 2000 VDD Supply voltage VESD Electrostatic handling TSTG Storage temperature range -65 to 150 V ℃ TA Operating ambient temperature range -40 to 85 ℃ TJ Maximum junction temperature 150 ℃ TS Soldering temperature, 10 seconds 260 ℃ RTHJA Thermal resistance from junction to ambient in free air TSSOP20 (enhance thermal pad) 51 ℃/W OPERATING RATINGS Symbol VDD REV 4 Parameter Supply voltage 3/14 Min Typ Max Unit 2.4 5 6.5 V www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone 5V ELECTRICAL CHARACTERISTICS Ta = 25°C, VDD=5V, f=1kHz, BW<30kHz, unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit BTL Mode, VIN=0V, IO=0A 4.5 5.8 8.3 mA SE Mode, VIN=0V, IO=0A 2.5 3.2 4.2 mA - 0.4 2 uA IQ Quiescent current ISD Shutdown current VSDH Shutdown input voltage high 2.0 - - V VSDL Shutdown input voltage low - - 0.8 V VHPINH HP-IN input voltage high 0.6VDD - - V VHPINL HP-IN input voltage low - - 0.4VDD V - 95 - dB - 90 - dB - 63 - dB - 55 - dB - -77 -72 dB - 0.01412 0.0251 % 98 103 - dB - 2.3 - W BTL Mode, RL = 4Ω THD+N = 1% - 2 - W BTL Mode, RL = 8Ω THD+N = 1% - 1.3 - W SE Mode, RL =8Ω THD+N = 1% - 300m - W SE Mode, RL = 32Ω THD+N = 1% - 90m - W CS PSRR THD+N S/N Po REV 4 Channel separation Power supply rejection ratio Total harmonic distortion plus noise Signal-to-noise ratio Output power SD Mode, VSD=VDD Hysteresis voltage BTL Mode, RL=8Ω Po=1W SE Mode, RL=32Ω Po=60mW BTL Mode , RL=8Ω CBP=1uF, f=100Hz SE Mode , RL=32Ω CBP=10uF, f=100Hz SE mode, RL=32Ω, 75mW SE mode, A-weighting, 75mW BTL Mode, RL = 3Ω THD+N = 1% 4/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone 3.3 V ELECTRICAL CHARACTERISTICS Ta = 25°C, VDD=3.3V, f=1kHz, BW<30kHz, unless otherwise specified. Symbol Parameter Conditions IQ Quiescent current ISD Shutdown current CS Channel separation PSRR THD+N S/N Po REV 4 Power supply rejection ratio Total harmonic distortion plus noise Signal-to-noise ratio Output power Min Typ Max Unit BTL Mode, VIN=0V, IO=0A - 5.4 - mA SE Mode, VIN=0V, IO=0A - 2.8 - mA SD Mode, VSD=VDD BTL Mode, RL=8Ω Po=120mW SE Mode, RL=32Ω Po=25mW BTL Mode , RL=8Ω CBP=1uF, f=100Hz SE Mode , RL=32Ω CBP=10uF, f=100Hz - 0.2 - uA - 83 - dB - 86 - dB - 60 - dB - 53 - dB - -73 -68 dB 0.0238 0.0398 % 94 99 - dB - 0.8 - W BTL Mode, RL = 8Ω THD+N = 1% - 0.5 - W SE Mode, RL =8Ω THD+N = 1% - 130m - W SE Mode, RL = 32Ω THD+N = 1% - 40m - W SE mode, RL=32Ω, 25mW SE mode, A-weighting 25mW BTL Mode, RL = 4Ω THD+N = 1% 5/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone 2.7 V ELECTRICAL CHARACTERISTICS Ta = 25°C, VDD=2.7V, f=1kHz, BW<30kHz, unless otherwise specified. Symbol Parameter Conditions IQ Quiescent current ISD Shutdown current CS Channel separation PSRR THD+N S/N Po Power supply rejection ratio Total harmonic distortion plus noise Signal-to-noise ratio Output power Min Typ Max Unit BTL Mode, VIN=0V, IO=0A - 5.1 - mA SE Mode, VIN=0V, IO=0A - 2.7 - mA SD Mode, VSD=VDD BTL Mode, RL=8Ω Po=80mW SE Mode, RL=32Ω Po=15mW BTL Mode , RL=8Ω CBP=1uF, f=100Hz SE Mode , RL=32Ω CBP=10uF, f=100Hz - 0.1 - uA - 83 - dB - 85 - dB - 60 - dB - 52 - dB - -71 -66 dB 0.028 0.051 % 90 97 - dB - 0.5 - W BTL Mode; RL = 8Ω THD+N = 1% - 0.35 - W SE Mode; RL = 8Ω THD+N = 1% - 85m - W SE Mode; RL = 32Ω THD+N = 1% - 25m - W Min Typ Max Unit - -71 -65 dB 0.028 0.056 % 90 97 - dB - 0.375 - W BTL Mode; RL = 8Ω THD+N = 1% - 0.27 - W SE Mode; RL = 8Ω THD+N = 1% - 72m - W SE Mode; RL = 32Ω THD+N = 1% - 22m - W SE mode, RL=32Ω, 15mW SE mode, A-weighting 15mW BTL Mode, RL = 4Ω THD+N = 1% 2.4 V ELECTRICAL CHARACTERISTICS Ta = 25°C, VDD=2.4V, f=1kHz, BW<30kHz, unless otherwise specified. Symbol Parameter Conditions THD+N S/N Po REV 4 Total harmonic distortion plus noise Signal-to-noise ratio Output power SE mode, RL=32Ω, 15mW SE mode, A-weighting 15mW BTL Mode, RL = 4Ω THD+N = 1% 6/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone TYPICAL PERFORMANCE CHARACTERISTICS Ta = 25°C, BW<30kHz, unless otherwise specified. VDD=3.3V BTL mode RL=4Ω FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) THD+N vs. frequency THD+N vs. frequency VDD=3.3V BTL mode RL=8Ω Po=0.5W THD+N (%) VDD=2.7V BTL mode RL=8Ω THD+N (%) THD+N (%) Po=1.2W Po=0.35W FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) THD+N vs. frequency THD+N vs. frequency THD+N vs. frequency VDD=3.3V SE mode RL=32Ω Po=25mW THD+N (%) Po=60mW VDD=2.7V SE mode RL=32Ω THD+N (%) VDD=5V SE mode RL=32Ω THD+N (%) Po=0.5W THD+N vs. frequency VDD=5V BTL mode RL=8Ω REV 4 Po=0.8W THD+N (%) THD+N (%) Po=2W VDD=2.7V BTL mode RL=4Ω THD+N (%) VDD=5V BTL mode RL=4Ω Po=15mW FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) THD+N vs. frequency THD+N vs. frequency THD+N vs. frequency 7/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone VDD=5V BTL mode RL=4Ω VDD=3.3V BTL mode RL=4Ω VDD=2.7V BTL mode RL=4Ω THD+N (%) f=1kHz f=20kHz f=20kHz THD+N (%) THD+N (%) f=20kHz f=1kHz f=20Hz f=1kHz f=20Hz f=20Hz OUTPUT POWER (W) OUTPUT POWER (W) THD+N vs. output power THD+N vs. output power f=20kHz f=20kHz f=1kHz f=1kHz f=1kHz f=20Hz VDD=5V BTL mode RL=8Ω THD+N (%) f=20kHz THD+N (%) THD+N (%) OUTPUT POWER (W) THD+N vs. output power f=20Hz VDD=3.3V BTL mode RL=8Ω f=20Hz VDD=2.7V BTL mode RL=8Ω OUTPUT POWER (W) OUTPUT POWER (W) OUTPUT POWER (W) THD+N vs. output power THD+N vs. output power THD+N vs. output power f=20kHz f=20kHz f=1kHz f=1kHz THD+N (%) f=1kHz THD+N (%) THD+N (%) f=20kHz f=20Hz f=20Hz f=20Hz VDD=5V SE mode RL=32Ω REV 4 VDD=3.3V SE mode RL=32Ω VDD=2.7V SE mode RL=32Ω OUTPUT POWER (W) OUTPUT POWER (W) OUTPUT POWER (W) THD+N vs. output power THD+N vs. output power THD+N vs. output power 8/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone CBP=10uF VDD=5V BTL mode RL=8Ω CBP=10uF VDD=3.3V BTL mode RL=8Ω CBP=10uF VDD=2.7V BTL mode RL=8Ω FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) PSRR vs. frequency PSRR vs. frequency PSRR vs. frequency CBP=1uF VDD=5V SE mode RL=32Ω CBP=10uF CBP=1uF PSRR (dB) CBP=10uF PSRR (dB) PSRR (dB) CBP=10uF VDD=3.3V SE mode RL=32Ω CBP=1uF VDD=2.7V SE mode RL=32Ω FREQUENCY (Hz) FREQUENCY (Hz) PSRR vs. frequency PSRR vs. frequency PSRR vs. frequency BTL mode SE mode BTL mode RL=8Ω Po=1W SE mode RL=32Ω Po=60mW VDD=5V CHANNEL SEPARATION (dB) FREQUENCY (Hz) CHANNEL SEPARATION (dB) QUIESCENT CURRENT (mA) CBP=1uF PSRR (dB) CBP=1uF PSRR (dB) PSRR (dB) CBP=1uF BTL mode RL=8Ω Po=80mW SE mode RL=32Ω Po=15mW VDD=2.7V SUPPLY VOLTAGE (V) FREQUENCY (Hz) FREQUENCY (Hz) Quiescent current vs. supply voltage Channel separation vs. frequency Channel separation vs. frequency REV 4 9/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone QUIESCENT CURRENT (mA) BTL mode SE mode VDD=5V HP-IN VOLTAGE (V) Quiescent current vs. HP-IN voltage APPLICATION INFORMATION Application example 20K RF 1uF 20k -OUTA 6 -INA RIN 8 4.7uF 1uF 20k 5 +OUTA +INA 14 BYPASS 13 +INB RL 8Ω 1k VDD VDD 4,17 GND 2,7,19 9,10,11,12 MS6863 15 3 100uF -INB RIN 1uF Headphone Jack MCU VDD 100k 100k 1 SD 20 -OUTB +OUTB HP-IN 100uF 16 18 RL 8Ω 1k 0.1uF 20K RF DC Gain = -RF / RIN = -1 Fig.1 A audio amplifier application circuit. SE mode and BTL mode operation As shown in block diagram and Fig.1, in the SE mode, the MS6863 operates as high current output dual operational amplifiers. Amplifiers A1 and B1 are independent amplifiers with an externally configured gain of AV = - RF/RIN. As amplifiers A2 and B2 are shutdown, then the amplifiers will be a high output impedance state. In BTL mode, the audio signal from the -INA (-INB) pin is directed to the inverting input of A1(B1). The A2(B2) is then activated with a closed-loop gain of AV = -1 fixed by two internal resistors. The outputs of A1(B1) and A2(B2) are then used to drive the bridged-tied load. REV 4 10/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone HP-IN operation The ability of the MS6863 is easily switched between dual BTL and stereo SE modes. The mode is switched by the headphone control pin, HP-IN. A logic-high activates the SE mode when a set of headphone plugged into the system, on the other hand, a logical-low to HP-IN activates the BTL mode when no headphones. Please note that this HP-IN voltage is a hysteresis voltage, the control voltage range is 0.4VDD to 0.6 VDD. SHUTDOWN mode SD places the entire device in shutdown mode when held high. Thermal pad considerations The thermal pad must be connected to ground. The package with thermal pad of the MS6863 requires the special attention on thermal design. The thermal pad on the bottom of the MS6863 should be soldered down to a copper pad on the circuit board. Heat can be conducted away from the thermal pad through the copper plane to ambient. If the copper plane is not on the top surface of the circuit board, 9 vias of 13 mil or smaller in diameter should be used to thermally couple the thermal pad to the bottom plane. For good thermal conduction, the vias must be plated through and solder filled. Pop noise free example Use extra function of pin7 and control timing. 20K RF 1uF 20k 6 RIN 8 VINA 4.7uF 1uF 20k -OUTA -INA +OUTA +INA 14 BYPASS 13 +INB 15 -INB VDD 100k 100k 1k VDD 4,17 GND 2,19 9,10,11,12 MS6863 1uF Headphone Jack 1 MCU RL 8Ω 3 VDD RIN VINB 100uF 5 SD 7 20 SDPR -OUTB HP-IN +OUTB 0.1uF 100uF 16 18 RL 8Ω 1k 20K RF Fig.2 A pop noise free application circuit. SDPR (Pin7) Shutdown Delay time 0.1s Fig.3 A control timing for pop noise free REV 4 11/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone Pop noise free in shutdown control According to the control timing figure3, it can reduce pop noise efficiently during the shutdown control. The timing can be applied to BTL and SE mode. The delay time is decided by the value of the bypass capacitor. EXTERNAL DIMENSIONS TSSOP20 (Thermal Pad) D D2 Detail A E2 E1 E C A2 A θ A1 B Symbol e y Dimension in mm Dimension in inches Min Nom Max Min Nom Max A 0.80 - 1.15 0.031 - 0.045 A1 0.00 - 0.10 0.000 - 0.004 A2 0.80 1.00 1.05 0.031 0.039 0.041 b 0.19 - 0.30 0.007 - 0.012 C 0.09 - 0.20 0.004 - 0.008 D 6.40 6.50 6.60 0.252 0.256 0.260 D2 3.70 3.80 3.90 0.146 0.150 0.154 E 6.20 6.40 6.60 0.244 0.252 0.260 E1 4.30 4.40 4.50 0.169 0.173 0.177 E2 2.70 2.80 2.90 0.106 0.110 0.114 e REV 4 L 0.650 BASIC 0.026 BASIC L 0.45 0.60 0.75 0.018 0.024 θ 0o - 8o 0o - 8o y - - 0.10 - - 0.004 12/14 0.030 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone DEMO BOARD 1 1 4 4 5 5 3 3 3 3 6 2 2 2 6 2 Function description Label 1: Supply Input Supply voltage range is 2.4V to 6.5V, the left of jump is positive and the right of jump is negative. Label 2: Signal Input Connected to audio signals. Label 3: Speaker Output Connected to speaker with 8ohm or 4 ohm Label 4: Headphone Jack Used 3.5mm diameter of headphone with 32ohm Label 5: Shutdown Control System is active mode when jump is close, system enters shutdown mode when jump is open. Label 6: Shutdown Power Preparation It is compatible for LM4863 when jump is close. This is the same as connect to ground. When jump is open, it can be used the extra function of the MS6863. The details please refer to application information. SE mode and BTL mode operation The headphone controls operational mode. System enters SE mode when headphone jack is empty. When a set of headphone plugged into the jack, the system switched to BTL mode. REV 4 13/14 www.mosanalog.com MOSA MS6863 Dual 2W Power Amplifiers with Stereo Headphone Circuit JP1 1 2 + C2 1u C1 AVDD R1 100K 0.1u R2 100K JP2 1 2 SD JP3 1 2 -INB JP4 1 2 C4 1u C5 1u + -INA + R4 20K R5 20K R3 100K R6 20K R7 20K U1 1 2 3 4 5 6 7 8 9 10 LS2 SPEAKER C3 100u + SD HP-IN GND GND +OUTA +OUTB VDD VDD -OUTA -OUTB -INA -INB GND BP +INA +INB GND GND GND GND 20 19 18 17 16 15 14 13 12 11 LS1 J5 1 2 3 SPEAKER + C6 100u OUT J1 MS6863 C7 R9 1K + R8 1K HEAD PHONE 1 2 4.7u JP6 PDP REV 4 14/14 www.mosanalog.com