MS6541

MS6544 MOSA | Alldatasheet

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Technical content

Class AB Stereo Headphone Driver with M ute REV 1 1 www.mosanalog.com.tw Stereo Headphone Driver, 0dB / 6dB Gain Low Voltage, Internal Mute Function No Popping Noise When Power On / Off

FEATURES

‧Low supply voltage 2.7 to 5.5V ‧Internal mute function ‧No popping noise ‧Fixed gain of 6 dB for MS6544 Fixed gain of 0 dB for MS6541 ‧High SNR , Slew rate ‧Low distortion ‧Excellent power supply ripple rejection ‧Low power consumption ‧Large output voltage swing

APPLICATIONS

‧MP3, PDA ‧Portable Digital Audio. ‧CD-ROM, DVD-ROM, CD-RW, DVD-RW ‧Cross-reference : 6dB: BH3544F, NJM2169 0dB : BH3541F, NJM2168

DESCRIPTION

The MS6544 is an integrated class AB stereo headphone driver c ontained i n a n S O8 package. The MS6544 has fixed gai n of 6dB and the M S6541 has f ixed gai n of 0dB. The mute function to prevent popping sounds when the power is t urned on an d off. It has good performance at lo w voltage op eration, t he MS6 544/41 i deally su ited for use in portable digital audio equipment. BLOCK DIAGRAM INB VDD OutB BIAS OutA MUTE INA VSS MUTE BIAS 90k (180k) 90k (180k) 6dB (0dB) 6dB (0dB) PIN CONFIGURATION Symbol Pin Description OutA 1 Output A Mute 2 Mute control (Low: mute on, High: mute off) INA 3 Input A VSS 4 Negative supply INB 5 Input B BIAS 6 Bias (connect CAP) OutB 7 Output B VDD 8 Positive supply MS6544 MS6541 VDD OUTB BIAS INB OUTA MUTE INA VSS

Class AB Stereo Headphone Driver with M ute REV 1 2 www.mosanalog.com.tw

ORDERING INFORMATION

Package Part number Packaging Marking Transport Media 8-Pin SOP MS6544TR MS6544 2.5k Units Tape and Reel 8-Pin SOP MS6544U MS6544 100 Units Tube 8-Pin SOP (lead free) MS6544GTR MS6544G 2.5k Units Tape and Reel 8-Pin SOP (lead free) MS6544GU MS6544G 100 Units Tube 8-Pin SOP MS6541TR MS6541 2.5k Units Tape and Reel 8-Pin SOP MS6541U MS6541 100 Units Tube 8-Pin SOP (lead free) MS6541GTR MS6541G 2.5k Units Tape and Reel 8-Pin SOP (lead free) MS6541GU MS6541G 100 Units Tube ABSOLUTE MAXIMUM RATINGS Symbol Parameter Rating Unit VDD Supply Voltage 6 V VESD Electrostatic Handling -4500 to 4500 V TSTG Storage Temperature Range -65 to 150 Ċ TA Operating Ambient Temperature Range -40 to 85 Ċ TJ Maximum Junction Temperature 150 Ċ TS Soldering Temperature, 10 seconds 260 Ċ RTHJA Thermal Resistance from Junction to Ambient in Free Air SOP8 210 Ċ/W OPERATING RATINGS Symbol Parameter Min Typ Max Unit VDD Supply Voltage 2.7 - 5.5 V

Class AB Stereo Headphone Driver with M ute REV 1 3 www.mosanalog.com.tw 5V ELECTRICAL CHARACTERISTICS (Ta=25Ċ, VDD=5V, VSS=0V, Vo=2Vpp, f=1kHz, AV=1, RL=32Ω; unless otherwise specified) Symbol Parameter Conditions Min Typ Max Unit DC Characteristics Mute On - 1.5 1.6 mA IQ Quiescent current Vo=0Vpp 2 channels Mute Off 3.7 3.9 4.1 mA Mute on 0 - 1 V VTM Mute control voltage Mute off 3 - VDD V MS6544 : 6dB 5 6 7 dB GVC Voltage Gain MS6541 : 0dB -1 0 1 dB PSRR Power supply rejection ratio Vripple = -20dBV, 100Hz 57 60 - dB CS Channel separation Vo=0dBV 100 117 - dB ATT Mute attenuation Vo=0dBV 100 115 - dB AC Characteristics S/N Signal-to-noise Vo=4Vpp 95 99 - dB THD+N Total harmonic distortion plus noise Vo=2Vpp - -64 -62 dB SR Slew rate Unity gain inverting - 5 - V/µs Po Maximum output power (THD+N)/S<0.1%, 2 ch 130 140 - mW VO Maximum output voltage swing (THD+N)/S<0.1% 4.1 4.2 - Vpp 3.3V ELECTRICAL CHARACTERISTICS (Ta=25Ċ, VDD=3.3V, VSS=0V, Vo=2Vpp, f=1kHz, AV=1, RL=32Ω; unless otherwise specified) Symbol Parameter Conditions Min Typ Max Unit DC Characteristics Mute On - 1.3 1.4 mA IQ Quiescent current Vo=0Vpp 2 channels Mute Off - 3.3 3.5 mA Mute on 0 - 1 V VTM Mute control voltage Mute off 2.5 - VDD V PSRR Power supply rejection ratio Vripple = -20dBV, 100Hz 57 60 - dB CS Channel separation Vo=0dBV 100 115 - dB ATT Mute attenuation Vo=0dBV 100 115 - dB AC Characteristics S/N Signal-to-noise Vo=2.6Vpp 93 97 - dB THD+N Total harmonic distortion plus noise Vo=2Vpp - -64 -62 dB Po Maximum output power (THD+N/S)<0.1%, 2 ch 49 52 - mW VO Maximum output voltage swing (THD+N)/S<0.1% 2.5 2.6 - Vpp

Class AB Stereo Headphone Driver with M ute REV 1 4 www.mosanalog.com.tw 2.7V ELECTRICAL CHARACTERISTICS (Ta=25Ċ, VDD=2.7V, VSS=0V, Vo=2Vpp, f=1kHz, AV=1, RL=32Ω; unless otherwise specified) Symbol Parameter Conditions Min Typ Max Unit DC Characteristics Mute On - 1.2 1.3 mA IQ Quiescent current Vo=0Vpp 2 channels Mute Off - 3.0 3.2 mA Mute on 0 - 1 V VTM Mute control voltage Mute off 2.5 - VDD V PSRR Power supply rejection ratio Vripple = -20dBV, 100Hz 57 60 - dB CS Channel separation Vo=-3dBV 100 112 - dB ATT Mute attenuation Vo=-3dBV 100 115 - dB AC Characteristics S/N Signal-to-noise Vo=2Vpp 92 96 - dB THD+N Total harmonic distortion plus noise Vo=2Vpp - -64 -62 dB Po Maximum output power (THD+N/S)<0.1%, 2 ch 28 31 - mW VO Maximum output voltage swing (THD+N)/S<0.1% 1.9 2 - Vpp

Class AB Stereo Headphone Driver with M ute REV 1 5 www.mosanalog.com.tw TYPICAL PERFORMANCE CHARACTERISTICS (Ta=25Ċ, RL=32Ω; unless otherwise specified) THD+N (%) OUTPUT VOLTAGE (dBV) THD+N (%) OUTPUT VOLTAGE (dBV) THD+N (%) OUTPUT VOLTAGE (dBV) THD+N vs. output voltage THD+N vs. output voltage THD+N vs. output voltage f=20kHz f=20kHzf=20kHz f=1kHz f=1kHzf=1kHz f=20Hz f=20Hz f=20Hz VDD=5V VDD=2.7VVDD=3.3V CHANNEL SEPARATION (dB) FREQUENCY (Hz) MUTE ATTENUATION (dB) FREQUENCY (Hz) PSRR (dB) FREQUENCY (Hz) Channel separation vs. frequency Mute Attenuation vs. frequency PSRR vs. frequency VDD=5V VIN=0dBV VDD=2.7V VIN=-3dBVVDD=3.3V VIN=0dBV VDD=3.3V VIN=-0dBV VDD=2.7V VIN=-3dBV VDD=5V VDD=5V VIN=0dBV VDD=2.7V VDD=3V VRR=-20dBV Bias C=47uF QUIESCENT CURRENT (mA) SUPPLY VOLTAGE (V) Quiescent current vs. supply voltage Mute Off Mute On

Class AB Stereo Headphone Driver with M ute REV 1 6 www.mosanalog.com.tw MUTE FUNCTION Mute operation VDD Out VTM B A C A A: Mute period Set Mute = Low to prevent the popping noise when power is turned on and off. B: Mute release time The time constant is decided by R and C of pin 2. C: Mute start time The time constant like Mute release time. Mute function to prevent the popping noise Voltage (V) Time (Sec) Conditions : VDD = 5V, Vo =2Vpp Process : Mute On, VDD On, Mute Off Mute On, VDD Off Conditions : VDD = 2.7V, Vo =2Vpp Process : Mute On, VDD On, Mute Off Mute On, VDD Off VDD VO VO loading VDD VO VO loading

Class AB Stereo Headphone Driver with M ute REV 1 7 www.mosanalog.com.tw

APPLICATION INFORMATION

H : Active L : Mute 7 MUTE BIAS 90k 90k 6dB6dB VDD=3.3V 0.1u 100u 200p 90k 200p f-3dB = 17.6kHz DC gain = 1 Headphone Headphone Fig.1 The 1st order low pass filter for MP3 solution with MS6544. 100k VINA VTM 47u32 3247u VINB H : Active L : Mute 7 MUTE BIAS 90k (180k) 90k (180k) 6dB (0dB) 6dB (0dB) 0.1u 100u DC gain = 2 for MS6544 DC gain = 1 for MS6541 Headphone Headphone VDD=3.3V Fig.2 The MP3 solution .

Class AB Stereo Headphone Driver with M ute REV 1 8 www.mosanalog.com.tw EXTERNAL DIMENSIONS H E D A A1 e B C L Dimension in mm Dimension in inch Symbol Min Max Min Max A 1.35 1.75 0.0532 0.0688 A1 0.10 0.25 0.0040 0.0098 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.0075 0.0098 D 4.80 5.00 0.1890 0.1968 H 5.80 6.20 0.2284 0.2440 E 3.80 4.00 0.1497 0.1574 e 1.27 BSC 0.050 BSC L 0.40 1.27 0.016 0.050 SOP8 TAPE AND REEL (Unit : mm) 3.0 3.6 12.0 6.9 8.0 5.5 1.75 5.4 2.0 4.0 1.5+0.1/-0.0 DIA 0.5 Radius Typical1.5 MIN 0.30 0.3R MAX 1.72.0 0.05 0.05 0.05 0.3