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Product Detailed Parameters
- Description：IC AMP CLASS AB STER 8MW 14SSOP
- Series：-
- Mfr：Nisshinbo Micro Devices Inc.
- Package：Tape & Reel (TR)
- Type：Class AB
- Output Type：Headphones, 2-Channel (Stereo)
- Max Output Power x Channels @ Load：8mW x 2 @ 16Ohm
- Voltage - Supply：1.8V ~ 4.5V
- Features：Mute, Standby
- Mounting Type：Surface Mount
- Supplier Device Package：14-SSOP
- Package / Case：14-LSSOP (0.173", 4.40mm Width)
- Operating Temperature：-20°C ~ 75°C (TA)
- Grade：-
- Qualification：-
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Overview
The NJM2772V-TE1 is a low-voltage headphone amplifier designed for portable audio systems. It operates within a supply voltage range of 1.8 V to 4.5 V and features a fixed gain of 11.5 dB typical. The device includes a mute circuit, standby mode with 18 µA typical current consumption, and a center amplifier switch. It delivers a minimum output power of 6 mW at 16 Ω load with 10% THD. The component utilizes bipolar technology and is housed in an SSOP14 package.
Feature Summary
- Integrates mute function and standby circuitry to reduce turn-on noise and minimize power consumption during inactive periods.
- Includes a center amplifier switch that allows optimization of current draw based on the presence or absence of output coupling capacitors.
- Features a dedicated beep input terminal for generating audible signals in portable devices.
Applications
- Portable MD players
- Portable CD players
- Handheld audio systems
Procurement Notes
Verify the specific ordering suffix TE1 to confirm tape-and-reel packaging configuration. Ensure the selected variant matches the required operating temperature range of -20 °C to +75 °C. Confirm compatibility with the target PCB footprint for the SSOP14 package before finalizing procurement orders.
Selection Notes
Select this component for applications requiring low supply voltage operation between 1.8 V and 4.5 V. Consider the integrated center amplifier feature if minimizing external capacitor count is necessary. Evaluate the 18 µA standby current requirement against system battery life constraints.
Part Context
This part belongs to the NJM2772 series of low-voltage headphone amplifiers manufactured by Nisshinbo Micro Devices. It is engineered specifically for battery-powered portable electronics where power efficiency and minimal external component count are critical design factors.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation.
FAQ
How does the Center-SW pin affect power consumption?
When the Center-SW pin is set to OFF (High level), the internal center amplifier is disabled, allowing for lower current consumption when external output coupling capacitors are used in the circuit design.
What is the function of the BEEP terminal?
The BEEP terminal (Pin 5) allows for the input of a signal to generate an audible beep output, typically used for user interface feedback in portable devices.
