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Product Detailed Parameters
- Description：IC AMP CLASS AB MONO 1.8W 10MSOP
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Type：Class AB
- Output Type：1-Channel (Mono)
- Max Output Power x Channels @ Load：1.8W x 1 @ 4Ohm
- Voltage - Supply：2.7V ~ 5.5V
- Features：Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
- Mounting Type：Surface Mount
- Supplier Device Package：10-MSOP
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The AS1702-T is a single-channel differential audio power amplifier designed for portable devices. It delivers 1.8W continuous average power to a 4Ω load with less than 1% THD+N, operating from a single 2.7V to 5.5V supply. The device features adjustable gain via external components, bridge-tied load (BTL) configuration, and integrated click-and-pop suppression. It includes low-power shutdown mode consuming less than 100nA and operates within a temperature range of -40°C to +85°C.
Feature Summary
- Adjustable gain capability through external feedback resistors
- Bridge-tied load design minimizing external component count
- Integrated click-and-pop suppression circuitry
- Low-power shutdown mode reducing quiescent current below 100nA
Applications
- MP3 and CD players
- Mobile phones
- Portable DVD players
- Hand-held battery-powered devices
Procurement Notes
Verify the specific package type required, as the AS1702 series is available in both 10-pin MSOP and 10-pin DFN configurations. Confirm that the adjustable gain requirement aligns with the AS1702 model rather than fixed-gain variants. Ensure the application environment stays within the specified voltage and thermal limits.
Selection Notes
Select this component when an adjustable gain setting is necessary for the audio front-end design. It is suitable for applications requiring high output power relative to its small footprint. Consider the BTL topology benefits for driving low-impedance loads without large DC-blocking capacitors.
Part Context
This part belongs to the AS1702-AS1705 family of 1.8W single-channel audio power amplifiers. While other models in the series offer fixed gains of 0dB, 3dB, or 6dB, the AS1702 specifically provides user-configurable gain. It shares pin compatibility with similar industry amplifiers like the LM4895 and MAX9718.
Replacement Considerations
Pin-compatible replacements include National Semiconductor LM4895 and Maxim MAX9718A/B/C/D. Verify that substitute parts support the required adjustable gain architecture if replacing the AS1702 specifically.
