View MS6541_629010.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

MOSA
MS6544/6541
Class AB Stereo Headphone Driver with Mute
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 contained in an SO8 package. The MS6544 has fixed gain of 6dB and the MS6541 has fixed gain of 0dB. The mute function to prevent popping sounds when the power is turned on and off. It has good performance at low voltage operation, the MS6544/41 ideally suited for use in portable digital audio equipment.
BLOCK DIAGRAM
OutA 1 MUTE 2 INA 3 VSS 4
6dB (0dB)
MUTE
6dB (0dB)
8 VDD 7 OutB
BIAS
90k (180k)
6 BIAS 5 INB
90k (180k)
PIN CONFIGURATION
Symbol OutA Mute INA VSS INB BIAS OutB VDD
REV 1
Pin 1 2 3 4 5 6 7 8
Description Output A Mute control (Low: mute on, High: mute off) Input A Negative supply Input B Bias (connect CAP) Output B Positive supply 1
www.mosanalog.com.tw
OUTA 1 MUTE 2 INA 3 VSS 4
8 VDD
MS6544 MS6541
7 OUTB 6 BIAS 5 INB
MOSA
ORDERING INFORMATION
Package 8-Pin SOP 8-Pin SOP 8-Pin SOP (lead free) 8-Pin SOP (lead free) 8-Pin SOP 8-Pin SOP 8-Pin SOP (lead free) 8-Pin SOP (lead free) Part number MS6544TR MS6544U MS6544GTR MS6544GU MS6541TR MS6541U MS6541GTR MS6541GU MS6544 MS6544 MS6544G MS6544G MS6541 MS6541 MS6541G MS6541G
MS6544/6541
Class AB Stereo Headphone Driver with Mute
Packaging Marking
Transport Media 2.5k Units Tape and Reel 100 Units Tube 2.5k Units Tape and Reel 100 Units Tube 2.5k Units Tape and Reel 100 Units Tube 2.5k Units Tape and Reel 100 Units Tube
ABSOLUTE MAXIMUM RATINGS
Symbol VDD VESD TSTG TA TJ TS RTHJA Supply Voltage Electrostatic Handling Storage Temperature Range Operating Ambient Temperature Range Maximum Junction Temperature Soldering Temperature, 10 seconds Thermal Resistance from Junction to Ambient in Free Air SOP8 Parameter Rating 6 -4500 to 4500 -65 to 150 -40 to 85 150 260 210 /W Unit V V
OPERATING RATINGS
Symbol VDD Supply Voltage Parameter Min 2.7 Typ Max 5.5 Unit V
REV 1
2
www.mosanalog.com.tw
MOSA
5V ELECTRICAL CHARACTERISTICS
(Ta=25
MS6544/6541
Class AB Stereo Headphone Driver with Mute
, VDD=5V, VSS=0V, Vo=2Vpp, f=1kHz, AV=1, RL=32; unless otherwise specified) Conditions Min Typ Symbol Parameter DC Characteristics IQ VTM GVC PSRR CS ATT S/N
THD+N SR
Max 1.6 4.1 1 VDD 7 1 -62 -
Unit mA mA V V dB dB dB dB dB dB dB V/s mW Vpp
Quiescent current Mute control voltage Voltage Gain Power supply rejection ratio Channel separation Mute attenuation Signal-to-noise Total harmonic distortion plus noise Slew rate Maximum output power Maximum output voltage swing
Vo=0Vpp 2 channels
Mute On Mute Off
3.7 0 3 5 -1 57 100 100 95 130 4.1
1.5 3.9 6 0 60 117 115 99 -64 5 140 4.2
Mute on Mute off MS6544 : 6dB MS6541 : 0dB Vripple = -20dBV, 100Hz Vo=0dBV Vo=0dBV Vo=4Vpp Vo=2Vpp Unity gain inverting (THD+N)/S<0.1%, 2 ch (THD+N)/S<0.1%
AC Characteristics
Po VO
3.3V ELECTRICAL CHARACTERISTICS
(Ta=25 , VDD=3.3V, VSS=0V, Vo=2Vpp, f=1kHz, AV=1, RL=32; unless otherwise specified) Conditions Min Typ Symbol Parameter DC Characteristics IQ VTM PSRR CS ATT S/N THD+N Po VO Quiescent current Mute control voltage Power supply rejection ratio Channel separation Mute attenuation Signal-to-noise Total harmonic distortion plus noise Maximum output power Maximum output voltage swing Vo=0Vpp 2 channels Mute on Mute off Vripple = -20dBV, 100Hz Vo=0dBV Vo=0dBV Vo=2.6Vpp Vo=2Vpp (THD+N/S)<0.1%, 2 ch (THD+N)/S<0.1% Mute On Mute Off 0 2.5 57 100 100 93 49 2.5 1.3 3.3 60 115 115 97 -64 52 2.6 1.4 3.5 1 VDD -62 mA mA V V dB dB dB dB dB mW Vpp Max Unit
AC Characteristics
REV 1
3
www.mosanalog.com.tw
MOSA
2.7V ELECTRICAL CHARACTERISTICS
(Ta=25
MS6544/6541
Class AB Stereo Headphone Driver with Mute
, VDD=2.7V, VSS=0V, Vo=2Vpp, f=1kHz, AV=1, RL=32; unless otherwise specified) Conditions Min Typ Symbol Parameter DC Characteristics IQ VTM PSRR CS ATT S/N
THD+N
Max 1.3 3.2 1 VDD -62 -
Unit mA mA V V dB dB dB dB dB mW Vpp
Quiescent current Mute control voltage Power supply rejection ratio Channel separation Mute attenuation Signal-to-noise Total harmonic distortion plus noise Maximum output power Maximum output voltage swing
Vo=0Vpp 2 channels Mute on Mute off
Mute On Mute Off
0 2.5 57 100 100 92 28 1.9
1.2 3.0 60 112 115 96 -64 31 2
Vripple = -20dBV, 100Hz Vo=-3dBV Vo=-3dBV Vo=2Vpp Vo=2Vpp (THD+N/S)<0.1%, 2 ch (THD+N)/S<0.1%
AC Characteristics
Po VO
REV 1
4
www.mosanalog.com.tw
MOSA
TYPICAL PERFORMANCE CHARACTERISTICS
(Ta=25 , RL=32; unless otherwise specified)
MS6544/6541
Class AB Stereo Headphone Driver with Mute
THD+N (%)
THD+N (%)
f=1kHz
f=1kHz
THD+N (%)
f=20kHz
f=20kHz
f=20kHz
f=1kHz
f=20Hz VDD=5V VDD=3.3V
f=20Hz f=20Hz VDD=2.7V
OUTPUT VOLTAGE (dBV)
OUTPUT VOLTAGE (dBV)
OUTPUT VOLTAGE (dBV)
THD+N vs. output voltage
THD+N vs. output voltage
THD+N vs. output voltage
CHANNEL SEPARATION (dB)
VDD=3.3V VIN=0dBV
MUTE ATTENUATION (dB)
VDD=5V VIN=0dBV
VDD=2.7V VIN=-3dBV VDD=3.3V VIN=-0dBV VDD=5V
VDD=2.7V VIN=-3dBV
PSRR (dB)
VDD=5V VIN=0dBV
VDD=2.7V
VDD=3V
VRR=-20dBV Bias C=47uF
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
Channel separation vs. frequency
Mute Attenuation vs. frequency
PSRR vs. frequency
QUIESCENT CURRENT (mA)
Mute Off
Mute On
SUPPLY VOLTAGE (V)
Quiescent current vs. supply voltage
REV 1
5
www.mosanalog.com.tw
MOSA
MUTE FUNCTION
Mute operation
A A
MS6544/6541
Class AB Stereo Headphone Driver with Mute
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.
VDD B C
Out
VTM
Mute function to prevent the popping noise
VDD Conditions : VDD = 5V, Vo =2Vpp Process : Mute On, VDD On, Mute Off Mute On, VDD Off
VO
Voltage (V)
VO loading
Time (Sec)
VDD
Conditions : VDD = 2.7V, Vo =2Vpp Process : Mute On, VDD On, Mute Off Mute On, VDD Off
VO
VO loading
REV 1
6
www.mosanalog.com.tw
MOSA
APPLICATION INFORMATION
Low voltage application
MS6544/6541
Class AB Stereo Headphone Driver with Mute
10
VDD=3.3V
Headphone 32 47u 0.1u 100u
1
100k H : Active L : Mute 6dB 1u 1u 90k 6dB
8
47u
MUTE
Headphone 32
VTM
2 3
7
1u
BIAS
VINA
6 5
200p 90k 1u
200p
90k
90k
4
VINB
f-3dB = 17.6kHz DC gain = 1
Fig.1
The 1st order low pass filter for MP3 solution with MS6544.
10
VDD=3.3V
Headphone 32 47u 0.1u 100u
1
100k H : Active L : Mute 6dB (0dB) 1u 1u 6dB (0dB)
8
47u
MUTE
Headphone 32
VTM
2 3 4
7
1u
BIAS
VINA
90k (180k)
6 5
1u
90k (180k)
VINB
DC gain = 2 for MS6544 DC gain = 1 for MS6541
Fig.2
The MP3 solution .
REV 1
7
www.mosanalog.com.tw
MOSA
EXTERNAL DIMENSIONS
MS6544/6541
Class AB Stereo Headphone Driver with Mute
8
5
Symbol Dimension in mm Min Max 1.35 1.75 0.10 0.25 0.33 0.51 0.19 0.25 4.80 5.00 5.80 6.20 3.80 4.00 1.27 BSC 0.40 1.27 Dimension in inch Min Max 0.0532 0.0688 0.0040 0.0098 0.013 0.020 0.0075 0.0098 0.1890 0.1968 0.2284 0.2440 0.1497 0.1574 0.050 BSC 0.016 0.050
H
E 1 4
D
A A1 B C D H E e L
L A A1 e B C
SOP8
TAPE AND REEL (Unit : mm)
2.0 0.30 0.05 4.0 1.75 0.3R MAX 5.5 0.05 12.0 0.3
5.4
0.05
1.5+0.1/-0.0 DIA
3.0 3.6 6.9
8.0 1.5 MIN 0.5 Radius Typical
2.0 1.7
REV 1
8
www.mosanalog.com.tw

▲Up To Search▲

Price & Availability of MS6541

	To Download MS6541 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .