Coupling Capacitorless Headphone Amplifiers - BD88410GULBD88xxxGUL is output coupling capacitorless headphone amplifier. This IC has a negative voltage generator of regulated type built-in and generates the direct regulated negative voltage from the positive voltage. It is possible to drive headphones in a ground standard with both voltage of the supply voltage and the negative voltage. Therefore a large-capacity output coupling capacitor become needless and can reduce a cost, a board area, and the height of the part. In addition, there is not the signal decrement by the low range to happen by output coupling capacitor and output load impedance and can output a rich low tone. This series has a line up with the reference voltage type and the gain type.
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| * This product is a STANDARD grade product and not recommend for on-vehicle devices. | |||
| Vcc(Min.)[V] | 2.4 |
| Vcc(Max.)[V] | 5.5 |
| Iq[mA] | 2.0 |
| Ext. Gain | No |
| Maximum Output Gain[dB] | 0.0 |
| Headphone Output Type | Ground-Centered |
| Headphone THD+N[%] | 0.0060 |
| Headphone SNR[dB] | -101.0 |
| Headphone PSRR[dB] | -80.0 |
| Headphone Input Type | Single |
| Headphone Output Power(Max.)[mW] | 80 |
| Operating Temperature (Min.)[°C] | -40 |
| Operating Temperature (Max.)[°C] | 85 |
- ・2.4V to 5.5V Single-Supply Operation
・No Bulky DC-Blocking Capacitors Required
・Low THD+N
・Low Operating Current
・Integrated Negative Power Supply
・Integrated Short-Circuit and Thermal-Overload Protection circuit
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| PART NUMBER | Product Name | Package | Datasheet | Distribution Inventory |
|---|---|---|---|---|
| BD88400FJ | 80-mW Coupling Capacitorless Stereo Headphone Amplifiers | SOP-J14 | Buy Sample | |
| BD88200GUL | Coupling Capacitorless Headphone Amplifiers | VCSP50L2 | Buy Sample | |
| BD88210GUL | Coupling Capacitorless Headphone Amplifiers | VCSP50L2 | Buy Sample | |
| BD88215GUL | Coupling Capacitorless Headphone Amplifiers | VCSP50L2 | Buy Sample | |
| BD88220GUL | Coupling Capacitorless Headphone Amplifiers | VCSP50L2 | Buy Sample | |
| BD88400GUL | Coupling Capacitorless Headphone Amplifiers | VCSP50L2 | Buy Sample |
The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.
For ICs