View MS6901_4706212.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

MOSA
MS6901
Mono 1.1W Power Amplifier with Shutdown Selection
Mono 1.1W Power Amplifier Selectable Shutdown Logic Level Low Voltage Operation
FEATURES
*Operation range: 2.5V~5.5V *Shutdown Current 0.1uA at 5V *PSRR at 217Hz, 60dB at 5V *Output power, THD+N=1% RL=8 , 1.1W at 5V, 0.4W at 3.3V, 200mW at 2.5V *Unity-gain stable *Space-saving MSOP10, enhance thermal pad
APPLICATIONS
*Portable electronic devices *PDAs *Communication headsets *Cross-reference: LM4901
DESCRIPTION
The MS6901 is a low distortion power amplifier that can drive 1.1W of continuous average power into a mono 8 bridged-tied load (BTL). Operation with 2.5V supply, it can drive 200mw into a mono 8 . The shutdown may be enabled by either logic high or logic low that depending on shutdown mode selection. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications. The MS6901 is unity-gain stable and can be configured by external gain-setting resistors. The MS6901 has good feature for portable equipment, these features include the low voltage operation, micropower consumption shutdown mode, enhance thermal pad and small package MSOP10, make the MS6901 ideally suited for use in portable electronic equipments.
BLOCK DIAGRAM
-IN +IN
5 4
+
A1
-
6
Vo1
BP SD SD Mode VDD GND
2 1 3 8 7, 9
+
A2
+ 10
Vo2
Shutdown control SD Mode 0 0 1 1 SD 0 1 0 1 Status Shutdown On On Shutdown
Bias control
-
REV 1.0
1
www.mosanalog.com
MOSA
PIN CONFIGURATION
Symbol Pin
MS6901
Mono 1.1W Power Amplifier with Shutdown Selection
Description Shutdown places the entire device in shutdown mode depending on SD Mode selection. TTL compatible input. SD Mode = 0, the device entries shutdown when SD is logic low. SD Mode = 1, the device entries shutdown when SD is logic high. Bypass is the cap to the voltage divider for internal mid-supply bias. This terminal should be connected to a 0.1-F to 10-F capacitor CBP. The shutdown mode controls the shutdown logic level of the SD pin1. TTL compatible input Non-inverting input Inverting input BTL negative output Ground Supply voltage Ground BTL positive output MSOP10
SD BP SD Mode +IN -IN 1 2 3 4 5 Thermal Pad 10 9 8 7 6
SD
1
BP SD Mode +IN -IN Vo1 GND VDD GND Vo2
2 3 4 5 6 7 8 9 10
Vo2
GND VDD GND
Vo1
ORDERING INFORMATION
Package 10-Pin MSOP (lead free) 10-Pin MSOP (lead free) RoHS Compliance Part number MS6901MGTR MS6901MGU Packaging Marking 6901G 6901G Transport Media 3.5k Units Tape and Reel 80 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 MSOP10 (enhance thermal pad)
2
Parameter
Rating 6 3500 -65 to 150 -40 to 85 150 260 50
Unit V V /W
REV 1.0
www.mosanalog.com
MOSA
OPERATING RATINGS
Symbol VDD Supply voltage Parameter
MS6901
Mono 1.1W Power Amplifier with Shutdown Selection
Min 2.5
Typ 5
Max 5.5
Unit V
5V ELECTRICAL CHARACTERISTICS
Ta = 25C, VDD=5V, f=1kHz, BW<30kHz, unless otherwise specified. Symbol Parameter Conditions IQ ISHDN VSDH VSDL VSDMH VSDML PSRR THD+N S/N Po Quiescent current Shutdown current Shutdown input voltage high Shutdown input voltage low SD Mode input voltage high SD Mode input voltage low Power supply rejection ratio Total harmonic distortion plus noise Signal-to-noise ratio Output power RL=8, CBP=1uF, f=217Hz RL=8,1.1W RL=8, 1.1W RL=8, THD+N = 1% VIN=0V, IO=0A VSD=0V@VSDM=0V Min 2.0 2.0 90 Typ 2.7 0.1 60 -54 0.2 103 1.1 Max 0.8 0.8 -50 0.316 Unit mA uA V V V V dB dB % dB W
3.3V ELECTRICAL CHARACTERISTICS
Ta = 25C, VDD=3.3V, f=1kHz, BW<30kHz, unless otherwise specified. Symbol Parameter Conditions IQ ISD PSRR THD+N S/N Po Quiescent current Shutdown current Power supply rejection ratio Total harmonic distortion plus noise Signal-to-noise ratio Output power VIN=0V, IO=0A VSD=0V@VSDM=0V RL=8, CBP=1uF, f=217Hz RL=8, 0.4W RL=8, 0.4W RL=8, THD+N = 1% Min 90 Typ 2.4 0.1 60 -54 0.2 100 0.4 Max -50 0.316 Unit mA uA dB dB % dB W
2.5V ELECTRICAL CHARACTERISTICS
Ta = 25C, VDD=2.5V, f=1kHz, BW<30kHz, unless otherwise specified. Symbol Parameter Conditions IQ ISD PSRR THD+N S/N Po
REV 1.0
Min 90 -
Typ 2.2 0.1 60 -53 0.22 98 0.2
Max -50 0.316 -
Unit mA uA dB dB % dB W
Quiescent current Shutdown current Power supply rejection ratio Total harmonic distortion plus noise Signal-to-noise ratio Output power
VIN=0V, IO=0A VSD=0V@VSDM=0V RL=8, CBP =1uF, f=217Hz RL=8, 0.2W RL=8, 0.2W RL=8, THD+N = 1%
3
www.mosanalog.com
MOSA
Ta = 25C, BW<30kHz, unless otherwise specified.
VDD=5V RL=8 VDD=3.3V RL=8
MS6901
Mono 1.1W Power Amplifier with Shutdown Selection
TYPICAL PERFORMANCE CHARACTERISTICS
VDD=2.5V RL=8
THD+N (%)
THD+N (%)
Po=1.1W
Po=0.4W
THD+N (%)
Po=0.2W
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
THD+N vs. frequency
THD+N vs. frequency
THD+N vs. frequency
f=20kHz
f=20kHz
f=20kHz
THD+N (%)
THD+N (%)
f=20Hz
f=20Hz
THD+N (%)
f=1kHz
f=1kHz
f=1kHz
f=20Hz
VDD=5V RL=8
VDD=3.3V RL=8
VDD=2.5V RL=8
OUTPUT POWER (W)
OUTPUT POWER (W)
OUTPUT POWER (W)
THD+N vs. output power
THD+N vs. output power
THD+N vs. output power
CBP=1uF
CBP=1uF
CBP=1uF
PSRR (dB)
PSRR (dB)
VDD=5V RL=8
VDD=3.3V RL=8
PSRR (dB)
VDD=2.5V RL=8
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
PSRR vs. frequency
PSRR vs. frequency
PSRR vs. frequency
REV 1.0
4
www.mosanalog.com
MOSA
VIN=0V No load
MS6901
Mono 1.1W Power Amplifier with Shutdown Selection
QUIESCENT CURRENT (mA)
SUPPLY VOLTAGE (V)
Quiescent current vs. supply voltage
APPLICATION INFORMATION
Basic application example
20k RF
0.39uF
20k RI
5 4
-IN +IN
+
A1
Vo1
6
VIN
RL 8
1uF 2 1 3 100k 8 1uF 7, 9
BP SD SD Mode
VDD
+
A2
Vo2
10
+
MCU
Bias control
VDD
GND
Fig.1
A audio amplifier application circuit.
External gain-setting As shown in Fig.1, The amplifier A1 is independent amplifiers with an externally configured gain of AV = - RF/RI. The amplifier A2 is a closed-loop gain of AV = -1 fixed by two internal resistors. The outputs of A1 and A2 are used to drive the mono bridged-tied load (BTL).
REV 1.0
5
www.mosanalog.com
MOSA
Shutdown Control
MS6901
Mono 1.1W Power Amplifier with Shutdown Selection
The shutdown may be enabled by either logic high or logic low that depending on shutdown mode selection. Both the SD pin and the SD Mode pin are TTL compatible input. The SD Mode is logic low, the device entries shutdown when SD is logic low. The SD Mode is logic high, the device entries shutdown when SD is logic high.
Shutdown control SD Mode 0 0 1 1 SD 0 1 0 1 Status Shutdown On On Shutdown
High Pass Filter The input capacitor CIN and resister RIN are decided the cut-off frequency of the HPF. The equation is as follows: fcut-off = 1 / (2*RIN *CIN) Thermal pad considerations The thermal pad must be connected to ground. The package with thermal pad of the MS6901 requires special attention on thermal design. The thermal pad on the bottom of the MS6901 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.
REV 1.0
6
www.mosanalog.com
MOSA
EXTERNAL DIMENSIONS
MSOP10 (Thermal Pad)
Thermal Pad
MS6901
Mono 1.1W Power Amplifier with Shutdown Selection
Dimension in mm
Symbol
Dimension in inches Min
0.032 0.002 0.030 0.006 0.005 0.114 0.185 0.114
Min
W1
Nom
Max
1.12 0.15 0.97 0.30 0.23 3.10 5.10 3.10 0.66 6o 1.52 1.27
Nom
Max
H
E
W2
A A1 A2 b c D H E
0.81 0.05 0.76 0.15 0.13 2.90 4.70 2.90
e
L W1 W2
D
0.92 0.86 0.20 0.15 3.00 4.90 3.00 0.50 BASIC 0.40 0.53 0o 1.27 1.02 -
0.036 0.044 0.006 0.034 0.038 0.008 0.012 0.006 0.009 0.118 0.122 0.193 0.201 0.118 0.122 0.02 BASIC 0.016 0.021 0.026 0o 6o 0.050 0.060 0.040 0.050
A
A2 A1 e B L C
TAPE AND REEL
MSOP10
(Unit : mm)
2.0 0.30 0.05 4.0
0.05
1.5+0.1/-0.0 DIA
1.75 0.3R MAX 5.5 0.05 12.0
5.4
0.3
3.0 3.6 6.9
8.0 1.5 MIN 0.5 Radius Typical
2.0 1.7
REV 1.0
7
www.mosanalog.com

▲Up To Search▲

Price & Availability of MS6901

	To Download MS6901 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .