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PDF BD88400FJ Data sheet ( Hoja de datos )
| Número de pieza | BD88400FJ | |
| Descripción | 80-mW Coupling Capacitorless Stereo Headphone Amplifiers | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
80-mW Coupling Capacitorless
Stereo Headphone Amplifiers
BD88400FJ
General Description
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.
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
Package
W(Typ) x D(Typ) x H(Max)
SOP-J14
8.65mm x 6.00mm x 1.65mm
Applications
Home Audio, TVs, Portable Audio Players, PCs, Digital
Cameras, Electronic Dictionaries, Voice Recorders,
Bluetooth Headsets, etc.
Key Specifications and Lineup
Supply Voltage [V]
Supply Current [mA]
Gain [V/V]
Maximum Output Power [mW]
THD+N [%]
Noise Voltage [µVrms]
PSRR [dB]
+2.4 to +5.5
2.0 (No Signal)
Variable Gain with External Resistor
80
(VDD=3.3V,RL=16Ω, THD+N≤1%,f=1kHz)
0.006
(VDD=3.3V,RL=16Ω,Po=10mW,f=1kHz)
10
-80
(f=217Hz)
○Product structure：Silicon monolithic integrated circuit
.www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product has no designed protection against radioactive rays
1/27
TSZ02201-0C1C0EA00160-1-2
07.Aug.2014 Rev.002
1 page  
BD88400FJ
Datasheet
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
SGND to PGND Voltage
VGG 0.0 V
SVDD to PVDD Voltage
VDD
-0.3 to +0.3
V
SVSS to PVSS Voltage
VSS 0.0 V
SGND or PGND to SVDD, PVDD Voltage (Note 1)
VDG
-0.3 to +6.0
V
SVSS, PVSS to SGND Or PGND Voltage
VSG
-3.5 to +0.3
V
SGND to IN_- Voltage
VIN
(SVSS-0.3) to 2.8
V
SGND to OUT_- Voltage
VOUT
(SVSS-0.3) to 2.8
V
PGND to C1P- Voltage
VC1P
(PGND-0.3) to (PVDD+0.3)
V
PGND to C1N- Voltage
VC1N
(PVSS-0.3) to (PGND+0.3)
V
SGND to SHDN_B- Voltage
VSH
(SGND-0.3) to (SVDD+0.3)
V
Input Current
Power Dissipation (Note 2)
IIN
-10 to +10
mA
Pd 1.02 W
Storage Temperature Range
Tstg
-55 to +150
°C
Maximum Junction Temperature
Tjmax
+150
°C
(Note 1) Pd must not be exceeded.
(Note 2) When mounted on 70mm×70mm×1.6mm FR4, 1-layer glass epoxy board. Derate by 8.19mW/°C when operating above Ta=25°C
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended Operating Conditions
Parameter
Symbol
Rating
Unit
Min Typ Max
Supply Voltage Range
VSVDD,VPVDD
2.4
-
5.5 V
Operating Temperature Range
TOPR
-40
-
+85 °C
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/27
TSZ02201-0C1C0EA00160-1-2
07.Aug.2014 Rev.002
5 Page 
BD88400FJ
Typical Performance Curves – continued
BD88400FJ
Datasheet
100
VVDDDD=3=.33V.3V
10 RR20LL=k=H116z6Ω-LΩPF
2S0tekrHeoz-(LinPpFhase)
Stereo (in phase)
1
Po=1mW
0.1
Po=0.1mW
0.01
0.001
Po=10mW
10 100 1k 10k 100k
Frequency [Hz]
Figure 17. THD+N vs Frequency
(VDD=3.3V, RL=16Ω)
100
VVDDDD==33.3.V3V
RRLL==3322ΩΩ
10 20kHz-LPF
2S0tkeHrezo-L(inPpFhase)
Stereo (in phase)
1
Po=1mW
0.1
Po=0.1mW
0.01
0.001
10
Po=10mW
100 1k 10k 100k
Frequency [Hz]
Figure 18. THD+N vs Frequency
(VDD=3.3V, RL=32Ω)
0
VVDDDD==3.33.V3V
-20 InInppuutt ccoonnnneectct
-40
totwoittthhhee1.gg0rµrooFuunndd
with 1.0uF
-60
-80
-100
-120
-140
10 100 1k 10k 100k
Frequency [Hz]
Figure 19. Noise Spectrum vs Frequency
(VDD=3.3V)
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/27
TSZ02201-0C1C0EA00160-1-2
07.Aug.2014 Rev.002
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BD88400FJ.PDF ] | |
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