MS6891
MS6891 is Mono 1.5W Power Amplifier manufactured by MOSA.
FEATURES
- Operation range: 2.5V ~ 6.5V
- Shutdown Current 0.1u A at 5V
- PSRR at 217Hz, 70d B at 5V
- Output power
THD+N=10% RL=8Ω, 2.1W at 6V, 1.5W at 5V, 0.65W at 3.3V, 0.35W at 2.5V, THD+N=1% RL=8Ω, 1.75W at 6V ,1.2W at 5V, 0.5W at 3.3V, 0.25W at 2.5V THD+N = 0.2% RL=8Ω, 1.25W at 6V ,0.8W at 5V, 0.4W at 3.3V, 0.2W at 2.5V
- Unity-gain stable
- Space-saving SOP(TP)
APPLICATIONS
- Portable electronic devices
- PDAs
- munication headsets
Cross-reference
LM4891
DESCRIPTION
The MS6891 is a low distortion power amplifier that can drive 1.5W of continuous average power into a mono 8Ω bridged-tied load (BTL). Operation with 2.5V supply, it can drive 200mw into a mono 8Ω. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications. The MS6891 is unity-gain stable and can be configured by external gain-setting resistors.
The MS6891 has good feature for portable equipment, these features include the low voltage operation, micropower consumption shutdown mode, enhance thermal pad small package SOP8(TP), make the MS6891 ideally suited for use in portable electronic equipments.
- TP : Thermal Pad
BLOCK DIAGRAM
REV 3
1/9 .mosanalog.
MOSA
Mono 1.5W Power Amplifier with Shutdown
PIN CONFIGURATION
Symbol
SHDN
+IN -IN Vo1 VDD GND Vo2
Pin Description
Shutdown places the entire device in shutdown mode when held High. TTL patible input.
Bypass is the cap to the voltage divider for internal mid-supply bias. This terminal should be connected to a 0.1-μF to 10-μF capacitor CBP.
3 Non-inverting input
4 Inverting input
5 BTL negative output
6 Supply voltage
7 Ground
8 BTL positive output
SOP8(TP)...