BD88400FJ
80-mW Coupling Capacitorless Stereo Headphone Amplifier
BD88400FJ
80-mW Coupling Capacitorless Stereo Headphone Amplifier
BD88400FJ is an output coupling capacitorless headphone amplifier. This IC has a built-in regulated negative voltage generator type that generates the direct regulated negative voltage from the supply voltage. It is possible to drive headphones in a ground standard with both voltage of the positive voltage (+2.4V) and the negative voltage (-2.4V). Therefore a large capacitance output coupling capacitor becomes needless and can reduce cost, board area and height of the part. In addition, there is no signal degradation at the low range caused by the output coupling capacitor and output load impedance, thus a rich low tone can be outputted.
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Product Detail
Specifications:
Ext. Gain
Yes
Output Type
C-less
Number of Ch
2
Gain [dB]
Variable
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]
8.65x6 (t=1.65)
Features:
- No Bulky DC-Blocking Capacitors Required
- No Degradation of Low-Frequency Response Due to Output Capacitors
- Ground-Referenced Outputs
- Gain setting: Variable Gain with External Resistors
- Low THD+N
- Low Supply Current
- Integrated Negative Power Supply
- Integrated Short-Circuit and Thermal-Overload Protection
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BD88400FJ-EVK-001
BD88400FJ is an output coupling capacitorless headphone amplifier. This IC has a built-in regulated negative voltage generator type that generates the direct regulated negative voltage from the supply voltage. It is possible to drive headphones in a ground standard with both voltage of the positive voltage (+2.4V) and the negative voltage (-2.4V).
