Description

The TA2120FNG is a low consumption current stereo headphone power amplifier developed for portable CD players (3V). This IC has active bass boost, output limiter, and an input pin for beep sound.

Specifications and features

• Low consumption current: ICCQ = 1.9 mA (C-CUP) (typ.) ICCQ = 2.6 mA (OCL) (typ.)
• Two kinds of gain mode available: GV = 16dB or 8.5dB
• Output power (VCC = 2.0 V, f = 1 kHz, THD = 10%, RL = 16 Ω): Po = 8 mW (typ.)
• Low noise: Vno = −98dBV (typ.)
• Built-in the center amplifier ON/OFF function. (Favorable for low dissipation current in the C-Couple output configuration)
• Built-in active bass boost system
• Built-in output limiter function
• Input pin for beep sound
• Excellent ripple rejection ratio
• Built-in capacitor for reducing buzz noise
• Built-in power mute
• Built-in a power on/off switch
• Operating supply voltage range (Ta = 25°C): VCC = 1.8~4.5 V

Application Scenarios

The TA2120FNG is suitable for use in portable CD players (3V). It can be used to enhance audio quality, specifically in stereo headphone applications. The active bass boost system and output limiter function provide better sound performance.

Comparison

- Low consumption current
- Two gain modes available
- Built-in active bass boost and output limiter functions
- Excellent ripple rejection ratio
- Operating supply voltage range of 1.8~4.5 V

- No mentioned disadvantages