1. Overview (Product and Application)

️· Product: MOSA Mono 1.1W Fully Differential Power Amplifier (specifically packaged in an SOP8 with a thermal pad).
️· Primary Application: Audio amplifier driving a mono bridged-tied load (BTL). It is designed for audio applications.
️· Key Features:
- Fully differential input for noise reduction.
- Capable of delivering up to 1.3W into 8 ohms (at 2.5V supply).
- Bridge-tied load (BTL) configuration.

2. Electrical Characteristics (Highlights - values vary with supply voltage)

️· Supply Voltages: Supports 2.5V, 3.3V, and 2.5V operation.
️· Quiescent Current (Iq): Roughly 2.2mA - 2.4mA (depending on supply voltage).
️· Shutdown Current (Isd): Approximately 0.1 uA (for both supply voltages).
️· Shutdown Input Voltages:
- High (Vsdl): 2.0V
- Low (Vsdl): 0.8V
️· Power Supply Rejection Ratio (PSRR):
- At 217 Hz with 1uF capacitor on CBP: 60-80 dB (depending on supply voltage)
️· Total Harmonic Distortion + Noise (THD+N):
- At 1.1W output into 8 Ohms: Approximately 0.1% - 0.178% (depending on supply voltage)
️· Signal-to-Noise Ratio (S/N): 90-103 dB (depending on supply voltage)
️· Output Power (Po):
- 2.5V: 1.1W into 8 Ohms
- 3.3V: 0.4W into 8 Ohms
- 2.5V: 0.2W into 8 Ohms
️· Input Considerations: Needs a High-Pass Filter (HPF) which is designed using input capacitor (Cin) and resistor (Rin).

3. Thermal Considerations - Crucial for Performance

️· Thermal Pad Importance: The SOP8 package includes a thermal pad designed for heat dissipation.
️· Soldering Requirements: The thermal pad *must* be soldered to a copper plane on the PCB.
️· Vias for Heat Transfer: If the thermal pad is not on the top surface of the PCB, use 9 vias (13 mil or smaller diameter) to thermally couple the pad to the bottom plane. These vias *must* be plated through and solder filled to ensure good heat transfer.

4. Dimensions (SOP8 Package)

️· Reference: All dimensions are given in both millimeters (mm) and inches. Here's a summarized range:
- Length: Approximately 4.80mm - 5.00mm (0.1890" - 0.1968")
- Width: Approximately 2.159mm - 2.413mm (0.085" - 0.095")
- Pin Spacing: 1.27 BSC (Both sides center)
️· Detailed Dimensions Table: The document provides a table listing specific dimensions for various package features (A, A1, B, C, D, E, H, e, L, W1, W2). (See original document for full table)

Important Notes & Limitations:

️· Abbreviated Summary: This summary extracts key information. The full document contains more detailed specifications, application circuits, and graphs. Refer to the original document for complete information.
️· Design Responsibility: The user is responsible for ensuring appropriate design practices and heat sink/thermal management strategies based on the application.
️· Datasheet Dependent: This is based *solely* on the provided text. Always refer to the official MOSA datasheet for definitive and most up-to-date specifications.
️· Limited Graphs: I’m unable to reproduce the graphs presented in the document. I can describe them in text if needed.