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PDF BD8876FV Data sheet ( Hoja de datos )
| Número de pieza | BD8876FV | |
| Descripción | Output Coupling Capacitor-less Line Amplifier | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Output Coupling Capacitor-less
Line Amplifier
BD8876FV, BD8878FV
Description
BD8876FV, BD8878FV are output coupling
capacitor-less line amplifiers. These IC have a negative
voltage generator built-in and generate the negative
voltage from the supply voltage. It is possible to drive in a
ground reference with both voltage of the supply voltage
and the negative voltage. Therefore, these line
amplifiers have wide output range, and they can output
2Vrms(5.65VP-P) with the single-supply 5V.
Features
Possible to output 2Vrms with single-supply 5V
Output Coupling Capacitor-less
Variable Gain（+6dB / +9dB Typ.） [BD8876FV]
Fixed Gain（+6.7dB Typ.）[BD8878FV]
Integrated Negative Power Supply
Ground-Referenced Outputs
Integrated Short-Circuit and Thermal Protection
Key Specifications
Power Supply voltage:
3V to 5.5V
THD+N:
0.003% (Typ)
(VCC=5V, RL=10kΩ, Vo=2Vrms, 20kHz LPF)
Maximum Output Voltage: 2Vrms (Min)@VCC=5V
Output Noise:
10μVrms (Typ)
Circuit Current (Active):
3.2mA (Typ)
Operating Temperature Range:
-40°C to +85°C
Package
SSOP-B14
W(Typ) x D(Typ) x H(Max)
5.00mm x 6.40mm x 1.35mm
Applications
Video game console, Projector, Set Top Box, Blu-ray
player etc.
Typical Application Circuit
VDD
VDD
SSOP-B14
SVDD
INL
PVDD
OUTL
INR OUTR
SDB
GAIN (*1)
PVSS
CP
CN
(*1) GAIN pin : BD8876FV
Amplifier type
Gain
Package
BD8876FV
Inverting
amplifier
+6.0dB / +9.0dB
(Changed by GAIN pin)
BD8878FV
Non-inverting
amplifier
+6.7dB
SSOP-B14
Figure 1. Typical Application Circuit
〇Product structure : Silicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
〇This product has no designed protection against radioactive rays
1/20
TSZ02201-0C1C0EZ00280-1-2
2015.10.30 Rev.001
1 page  
BD8876FV, BD8878FV
(Unless otherwise specified, Ta=25°C, SVDD=PVDD=5V, SGND=PGND=0V, SDB=H, GAIN=L [BD8876FV], C1=C2=1µF,
RL=10kΩ, Input coupling capacitor=1µF) * SVDD, PVDD shows as ”VDD” in the following graphs.
BD8876FV
1 BD8878FV
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Supply Voltage [V]
Figure 4.
Circuit Current (Shutdown)
vs. Supply Voltage
10m
1m
VDD=5V
RL=10kΩ
GAIN=6dB
22kHz LPF+A-weight Filter
BD8876FV
BD8876FV
BD8878FV
8
7
6
5
4
3
2
1
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Supply Voltage [V]
10m
1m
Figure 5.
Circuit Current (Active)
vs. Supply Voltage
BD8878FV
VDD=5V
RL=10kΩ
22kHz LPF+A-weight Filter
100u
100u
10u
VN=7.8µVrms
1u
10u
VN=10.6µVrms
1u
0.1u
10
100 1k 10k
Frequency [Hz]
Figure 6.
Noise Level (BD8876FV)
100k
0.1u
10
100 1k 10k
Frequency [Hz]
Figure 7.
Noise Level (BDD8878FV)
100k
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/20
TSZ02201-0C1C0EZ00280-1-2
2015.10.30 Rev.001
5 Page 
BD8876FV, BD8878FV
Application Examples
Lch Input
OUTL 1
RL>550Ω
INL
2
CCL=1.0µF
5.0V
SVDD 3
42.3k/38.2k
15k/19.1k
SVDD
SVSS
SHORT CIRCUIT
PROTECTION
SVDD SVDD
SGND
SGND
CBPS=1.0µF
SGND 4 SGND
SVDD
OUTR
14
RR>550Ω
INRSVSS
42.3k/38.2k
13
Rch Input
CCR=1.0µF
15k/19.1k
SVSS
SVSS 12
PVSS
11
SHUTDOWN
CONTROL
SDB 5
GAIN
CONTROL
GAIN
6
5.0V
PVDD 7 PVDD
UVLO /
SHUTDOWN
CONTROL
SGND
CHARGE
PUMP
10 CN
C2=1.0µF
9 PGND
8 CP
C1=1.0µF
CBPP=1.0µF
Figure 28. BD8876FV Application circuit example
OUTL 1
RL>550Ω
Lch Input
INL 2
CCL=1.0µF
5.0V
SVDD 3
SGN
D
SVDD
CBPS=1.0µF
SGND 4 SGND
22.5k SVSS
6.8k
15k
15k
SGND
SHORT CIRCUIT
PROTECTION
SVDD SVDD
SVDD
14 OUTR
RR>550Ω
SVSS 22.5k
INR
13
Rch Input
6.8k
SGN
D
CCR=1.0µF
15k 15k
SVSS
SVSS 12
SGND
11 PVSS
SHUTDOWN
CONTROL
SDB 5
NC 6
OPEN
5.0V
PVDD 7 PVDD
UVLO /
SHUTDOWN
CONTROL
SGND
CHARGE
PUMP
10 CN
C2=1.0µF
PGND
9
8 CP
C1=1.0µF
CBPP=1.0µF
Figure 29. BD8878FV Application circuit example
* PVSS and SVSS are connected each other inside IC. But, please connect PVSS and SVSS outside IC, also.
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/20
TSZ02201-0C1C0EZ00280-1-2
2015.10.30 Rev.001
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet BD8876FV.PDF ] | |
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