ROHM Product Detail

BD88415GUL
Coupling Capacitorless Headphone Amplifier

BD88xxxGUL 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 is a standard-grade product.
For Automotive usage, please contact Sales.

Product Detail

 
Part Number | BD88415GUL-E2
Status | Recommended
Package | VCSP50L2
Packing Type | Taping
Unit Quantity | 3000
Minimum Package Quantity | 3000
RoHS | Yes

Specifications:

Iq[mA]

2

Ext. Gain

No

Gain [dB]

3.5

Output Type

C-less

Number of Ch

2

Gain [dB]

3.5

Maximum Output [mW,RL=16Ω]

80+80

Maximum Output [mW,RL=32Ω]

60+60

Minimum Load [Ω]

16

Input Type

Analog

THD+N [%,RL=16Ω]

0.006

S/N [dB]

101

Start Up Time [µs]

80

Stand-by Current [µA]

0.1

Power Supply Voltage (Min.) [V]

2.4

Power Supply Voltage (Max.) [V]

5.5

Headphone PSRR[dB]

-80

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Package Size [mm]

2.1x2.1 (t=0.55)

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Features:

・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

Reference Design / Application Evaluation Kit

 
    • Evaluation Board - BD88415GUL-EVK-001
    • BD88200GUL/BD88400GUL is output capacitor-less headphone amplifiers. The voltage gain can be change by the external resisters. BD88200GUL has a Ground-Referenced terminal. BD88400GUL doesn’t have a Ground-Reference terminal. BD88200GUL can be used as BD88210GUL/BD88215GUL/BD88220GUL by changing external resisters. BD88400GUL can be used as BD88410GUL/BD8415GUL/BD88420GUL by changing external resisters.

  • User's Guide

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