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Rohm Semiconductor Electronic Components Datasheet

BD88210GUL Datasheet

Coupling Capacitorless Headphone Amplifiers

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BD88210GUL pdf
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]
2.45.5
2.0
(No signal)
-1.0
-1.5
80 0.006
(VDD=3.3V,RL=16(VDD=3.3V,RL=16
THD+N1%,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


Rohm Semiconductor Electronic Components Datasheet

BD88210GUL Datasheet

Coupling Capacitorless Headphone Amplifiers

No Preview Available !

BD88210GUL pdf
BD88200GUL,BD88210GUL,BD88215GUL,BD88220GUL
Technical Note
Absolute maximum ratings
Parameter
Symbol
Ratings
SGND to PGND voltage
VGG 0.0
SVDD to PVDD voltage
VDD -0.30.3
SVSS to PVSS voltage
VSS 0.0
SGND or PGND to SVDD, PVDD voltage
VDG
-0.36.0
SVSS, PVSS to SGND or PGND voltage
VSG
-3.50.3
SGND to IN_- voltage
VIN (SVSS-0.3)2.8
SGND to OUT_- voltage
VOUT
(SVSS-0.3)2.8
PGND to C1P- voltage
VC1P
(PGND-0.3)(PVDD+0.3)
PGND to C1N- voltage
VC1N
(PVSS-0.3)(PGND+0.3)
SGND to SHDN_B- voltage
VSH (SGND-0.3)(SVDD+0.3)
Input current
IIN -1010
Power Dissipation
PD 1350 *
Storage Temperature Range
TSTG
-55150
* In operating over 25 , de-rate the value to 10.8mW/. This value is for mounted on the application board
(Grass-epoxy, size: 40mm x 60mm, H=1.6mm, Top Copper area = 79.9%, Bottom Copper area = 80.2%).
Unit
V
V
V
V
V
V
V
V
V
V
mA
mW
Operating conditions
Parameter
Supply Voltage Range
Operating Temperature Range
Symbol
VSVDD,VPVDD
TOPR
Min.
2.4
-40
Ratings
Typ.
-
-
Max.
5.5
+85
Unit
V
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2/25
2011.03 – Rev. A


Part Number BD88210GUL
Description Coupling Capacitorless Headphone Amplifiers
Maker Rohm
Total Page 26 Pages
PDF Download
BD88210GUL pdf
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