TS4601B：High performance stereo headphone amplifier with capaless outputs and I2C bus interface
The TS4601B is a stereo headphone driver dedicated to high audio performance and spaceconstrained applications. It has the same uses as the TS4601 which it replaces, while offering highly improved ESD ratings.
It is based on low power dissipation amplifier core technology. Special care was taken in the design of the amplification chain to achieve peerless PSRR (107 dB typ. at 217 Hz) and 101 dB of SNR.
The TS4601B can drive 0.9 Vrms output voltage into 16 and 1.6 Vrms into 10 k, whatever the power supply voltage, in the 2.9 V to 5.5 V range.
An I2C interface offers volume control in 64 steps from -60 dB to +4 dB and multiple configuration modes for the device.
The traditionally used output-coupling capacitors can be removed and a dedicated common-mode sense pin removes parasitic noise from the jack.
The TS4601B is designed to be used with an output serial resistor. It ensures unconditional stability over a wide range of capacitive loads.
The TS4601B is packaged in a tiny 16-bump flipchip with a pitch of 500 μm and a 300 μm diameter ball size.
Key Features
- Output-coupling capacitors removed
- Low standby current: 2 μA max
- Flip-chip package 2.1 mm x 2.1 mm, 500 μm pitch, 16 bumps
- Independent right and left channel shutdown control
- 101 dB of SNR A-weighted
- Power supply range: 2.9 V to 5.5 V
- Fully differential inputs
- 107 dB of PSRR at 217 Hz
- Digital volume control range from -60 dB to +4 dB
- Low quiescent current: 4.8 mA typ. at 3.0 V
- I2 C interface for volume control
Product Specifications
| Description | Version | Size |
|---|---|---|
| DS5856: High performance stereo headphone amplifier with capacitorless outputs and I²C bus interface | 2.2 | 625 KB |
Application Notes
| Description | Version | Size |
|---|---|---|
| AN2722: Demonstration board user guidelines for the TS4601B high-performance stereo headphone driver | 2.2 | 853 KB |
Brochures
| Description | Version | Size |
|---|---|---|
| ST’s solutions for mobile devices | 3.2 | 3 MB |
Sample & Buy
| Part Number | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Unit Price (US$) * | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|---|---|---|---|---|---|---|---|---|
| TS4601BEIJT | Chip Scale Package 0.5mm pitch | Tape And Reel | - | - | - | 1000 | NEC | EAR99 | - |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| TS4601BEIJT | Chip Scale Package 0.5mm pitch | Industrial | Ecopack3 | md_qc-wspc-cspso.5-wspc-11-16_bkqc-wspc-4601bhj.pdf md_qc-wspc-cspso.xml |
