|
|
PDF BD88210GUL Data sheet ( Hoja de datos )
| Número de pieza | BD88210GUL | |
| Descripción | Coupling Capacitorless Headphone Amplifiers | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de BD88210GUL (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
|
No Preview Available !
Headphone Amplifiers
Coupling Capacitorless
Headphone Amplifiers
BD88200GUL,BD88210GUL,BD88215GUL,BD88220GUL
No.11102EAT05
●Description
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 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-capacity output coupling capacitor becomes 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.
And, the function “Virtual ground” is embedded. Noise between IC and Headphone jack can be canceled by using “Virtual
ground” function.
●Features
1) 2.4V to 5.5V Single-Supply Operation
2) No Bulky DC-Blocking Capacitors Required
3) No Degradation of Low-Frequency Response Due to Output Capacitors
4) Virtual Ground-Referenced Outputs
5) Gain setting
BD88200GUL: Variable gain with external resistors
BD88210GUL: -1.0V/V
BD88215GUL: -1.5V/V
BD88220GUL: -2.0V/V
6) Low THD+N
7) Low Supply Current
8) Integrated Negative Power Supply
9) Integrated Short-Circuit and Thermal-Overload Protection
10) Small package
VCSP50L2 (2.1mm x 2.1mm)
●Applications
Mobile Phones, Smart Phones, PDAs, Portable Audio Players, PCs, TVs, Digital Cameras, Digital Video Cameras,
Electronic Dictionaries, Voice Recorders, Bluetooth Head-sets, etc
●Line up
Type
BD88200GUL
BD88210GUL
BD88215GUL
Supply
Voltage
[V]
Supply
Current
[mA]
Gain
[V/V]
Variable gain
with external
resister
Maximum
Output Power
[mW]
THD+N
[%]
Noise
Voltage
[µVrms]
PSRR
[dB]
2.4～5.5
2.0
(No signal)
-1.0
-1.5
80 0.006
(VDD=3.3V,RL=16Ω (VDD=3.3V,RL=16Ω
THD+N≦1%,f=1kHz) Po=10mW,f=1kHz)
10
-80
(f=217Hz)
Package
VCSP50L2
(2.1mm x 2.1mm)
BD88220GUL
-2.0
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/25
2011.03 – Rev. A
1 page  
BD88200GUL,BD88210GUL,BD88215GUL,BD88220GUL
●Electrical characteristic curves – BD88215GUL (Reference data)
0 VDD=2.4V
f=1kHz
-20 BPF
RL=32Ω
-40
RL=16Ω
-60
-80
-100
-120
-120 -100 -80 -60 -40 -20
0
Input Voltage [dBV]
Fig.13 Output Voltage vs.
Input Voltage (VDD=2.4V)
10
8
6 RL=16Ω
4
2
0 RL=32Ω
-2 VDD=2.4V
-4 Po=10mW
-6
RL=16Ω
Input coupling
-8 capacitor = 1.0uF
-10
10 100 1k
10k 100k
Frequency [Hz]
Fig.16 Gain vs. Frequency
(VDD=2.4V)
100
10
1 In phase
0.1 VDD=2.4V
20kHz-LPF
0.01 f=1kHz
Stereo
RL=16Ω
0.001
1n 100n
Out of phase
10u 1m 100m
Output Power [W]
Fig.19 THD+N vs. Output
Power (VDD=2.4V, RL=16Ω)
100
10
1 In phase
0.1 VDD=2.4V
20kHz-LPF
0.01 f=1kHz
Stereo
RL=32Ω
0.001
1n 100n
Out of phase
10u 1m 100m
Output Power [W]
Fig.22 THD+N vs. Output
Power (VDD=2.4V, RL=32Ω)
0 VDD=3.3V
f=1kHz
-20 BPF
RL=32Ω
-40
RL=16Ω
-60
-80
-100
-120
-120 -100 -80 -60 -40 -20
0
Input Voltage [dBV]
Fig.14 Output Voltage vs.
Input Voltage (VDD=3.3V)
10
8
6 RL=16Ω
4
2
0 RL=32Ω
-2 VDD=3.3V
-4 Po=10mW
-6
RL=16Ω
Input coupling
-8 capacitor = 1.0uF
-10
10 100 1k
10k 100k
Frequency [Hz]
Fig.17 Gain vs. Frequency
(VDD=3.3V)
100
10
1 In phase
0.1 VDD=3.3V
20kHz-LPF
0.01 f=1kHz
Stereo
RL=16Ω
0.001
1n 100n
Out of phase
10u 1m 100m
Output Power [W]
Fig.20 THD+N vs. Output
Power (VDD=3.3V, RL=16Ω)
100
10
1 In phase
0.1 VDD=3.3V
20kHz-LPF
0.01 f=1kHz
Stereo
RL=32Ω
0.001
1n 100n
Out of phase
10u 1m 100m
Output Power [W]
Fig.23 THD+N vs. Output
Power (VDD=3.3V, RL=32Ω)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
5/25
Technical Note
0 VDD=5.5V
f=1kHz
-20 BPF
RL=32Ω
-40
RL=16Ω
-60
-80
-100
-120
-120 -100 -80 -60 -40 -20
0
Input Voltage [dBV]
Fig.15 Output Voltage vs.
Input Voltage (VDD=5.5V)
10
8
6 RL=16Ω
4
2
0 RL=32Ω
-2 VDD=5.5V
-4 Po=10mW
-6
RL=16Ω
Input coupling
-8 capacitor = 1.0uF
-10
10 100 1k
10k 100k
Frequency [Hz]
Fig.18 Gain vs. Frequency
(VDD=5.5V)
100
10
1 In phase
0.1 VDD=5.5V
20kHz-LPF
0.01 f=1kHz
Stereo
RL=16Ω
0.001
1n 100n
Out of phase
10u 1m 100m
Output Power [W]
Fig.21 THD+N vs. Output
Power (VDD=5.5V, RL=16Ω)
100
10
1 In phase
0.1 VDD=5.5V
20kHz-LPF
0.01 f=1kHz
Stereo
RL=32Ω
0.001
1n 100n
Out of phase
10u 1m 100m
Output Power [W]
Fig.24 THD+N vs. Output
Power (VDD=5.5V, RL=32Ω)
2011.03 – Rev. A
5 Page 
BD88200GUL,BD88210GUL,BD88215GUL,BD88220GUL
●Block Diagram
Technical Note
PVDD
A3
1.0μF
C1P
A4
PGND
B4
C1N
C4
PVSS
D4
CHA RGE
PUMP
B1 C1
SVDD
UVLO/
SHUTDOWN
CONTROL
PVDD
CHARGE
PUMP
CONTROL
SVDD
CLOCK
GENERATOR
SGND
A2
A1
SVDD
SVDD
D1
Rin Rfb
SVDD
-
R2=Rin
+
SGND
SVSS
R1=Rfb
OUTL
D2
SVDD
TSD
SHORT
PROTECTION
R1=Rfb
SGND
R2=Rin
SVSS
+
-
SVDD
COM
B2
OUTR
C2
Rin R fb
SVSS
SVSS
D3
Type
BD88200GUL
BD88210GUL
BD88215GUL
BD88220GUL
Rin
14kΩ@Typ.
14kΩ@Typ.
14kΩ@Typ.
14kΩ@Typ.
Rfb
Open
14kΩ@Typ.
21kΩ@Typ.
28kΩ@Typ.
Fig.56 Block Diagram
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
11/25
2011.03 – Rev. A
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet BD88210GUL.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BD88210GUL | Coupling Capacitorless Headphone Amplifiers | ROHM Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |