Overview
The TS4962M, produced by STMicroelectronics, is a differential Class-D BTL (Bridge-Tied Load) power amplifier designed for high-efficiency audio applications. This component operates within a voltage range of 2.4 V to 5.5 V, making it suitable for a variety of portable and low-power devices. The TS4962M is known for its high efficiency, typically achieving 88% efficiency, which is significantly better than traditional Class-AB audio amplifiers. It features adjustable gain via external resistors and includes pop and click reduction circuitry to minimize noise during on/off transitions.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| VCC Operating Voltage | 2.4 | 5.5 | V | ||
| Output Power (4 Ω, THD = 1% max.) | VCC = 5 V | 2.3 | W | ||
| Output Power (8 Ω, THD = 1% max.) | VCC = 5 V | 1.4 | W | ||
| Supply Current (No input signal, no load) | VCC = 5 V | 2.1 | 3 | 3.3 | mA |
| Standby Current (VSTBY = GND) | 10 | 1000 | nA | ||
| Signal to Noise Ratio (A-weighting, Pout = 1.2 W, RL = 8 Ω) | 85 | dB | |||
| PWM Base Frequency | 180 | 250 | 320 | kHz | |
| Wake-up Time | 5 | 10 | ms | ||
| Standby Time | 5 | 10 | ms |
Key Features
- Operating voltage range: 2.4 V to 5.5 V
- High efficiency: typically 88%
- Adjustable gain via external resistors
- Low current consumption: 2 mA @ 3 V
- Low pop and click noise during on/off transitions
- Standby mode with active low standby pin
- Signal to noise ratio: 85 dB typ.
- PWM base frequency: 250 kHz typ.
- Fast wake-up and standby times: 5-10 ms
Applications
- Portable gaming consoles
- VR headsets
- Smartphones
- Tablets
Q & A
- What is the operating voltage range of the TS4962M?
The TS4962M operates within a voltage range of 2.4 V to 5.5 V.
- What is the typical efficiency of the TS4962M?
The TS4962M achieves a typical efficiency of 88%.
- How can the gain of the TS4962M be adjusted?
The gain of the TS4962M can be adjusted via external resistors.
- What is the standby current of the TS4962M when VSTBY is tied to GND?
The standby current is typically 10 nA when VSTBY is tied to GND.
- What is the signal to noise ratio (SNR) of the TS4962M?
The SNR is typically 85 dB with A-weighting, Pout = 1.2 W, and RL = 8 Ω.
- What is the PWM base frequency of the TS4962M?
The PWM base frequency is typically 250 kHz.
- How long does it take for the TS4962M to wake up from standby mode?
The wake-up time is typically between 5 to 10 ms.
- What are some common applications of the TS4962M?
Common applications include portable gaming consoles, VR headsets, smartphones, and tablets.
- How does the TS4962M reduce pop and click noise?
The TS4962M includes pop and click reduction circuitry to minimize noise during on/off transitions.
- What is the thermal resistance junction to ambient of the TS4962M?
The thermal resistance junction to ambient is 90 °C/W with a heat sink surface of 125 mm².
