99W085A
Line amplifier for CD-ROM/DVD-ROM
BH3527FV
Description
The BH3527FV is a line amplifier that elevates the
audio analog signal for CD-ROMs. The IC includes
an output mute circuit to reduce POP noise caused
by the power being turned OFF and ON.
Dimension
(Units:mm)
Features
1)Built-in 2 line amplifiers (3.5dB)
2)Built-in output mute circuit
3)Few external components
SSOP-B14
Applications
CD-ROM, DVD-ROM, Game machines
Absolute Maximum Ratings
(Ta=25˚C)
Parameter
Supply voltage
Power dissipation
Operating temperature range
Storage temperature range
Symbol
VMAX
Pd
Topr
Tstg
Limits
7.0
400
*
-25 ~ +75
-55 ~ +125
Unit
V
mW
˚C
˚C
*Derating: 4.0mW/˚C for operation above Ta=25˚C.
Recommended Operating Conditions
(Ta=25˚C)
Parameter
Supply voltage
Load resistance
Symbol
V
CC
R
L
Min.
3.5
-
Typ.
-
47
Max.
5.5
-
Unit
V
kΩ
November, 1999
Electrical Characteristics
(Unless otherwise noted, Ta=25˚C, Vcc= 5.0V, RL=47kΩ, f=1kHz)
Parameter
Quiescent current
Mute terminal "H" level voltage
Mute terminal "L" level voltage
Mute terminal source current
Mute terminal source current
Voltage gain
Differential channel voltage gain
Total harmonic distortion
Maximum output voltage
Output noise voltage
Channel separation
Mute attenuation
Ripple rejection rate
Input resistance
Symbol
Iq
VMH
VML
IMH
IML
G
VC
G
VC
THD
V
O
MAX
V
NO
CS
ATT
RR
R
IN
Min.
2.0
2.4
-
-
-90.0
2.4
-0.5
-
0.7
-
85
65
45
50
Typ.
3.4
-
-
42.0
-39.0
3.4
0.0
0.016
1.0
15
100
77
55
65
Max.
6.0
-
0.8
90.0
-
4.4
0.5
0.03
-
30
-
-
-
75
Unit
mA
V
V
A
A
dB
dB
%
Vrms
V
dB
dB
dB
k
Conditions
V
O
=0Vrms
Vm=5.0V (mode: High)
Vm=0.3V (mode: Low)
V
O
=1.0V
V
O
=1.0V
THD=0.01%
DIN Audio
V
RR
=-20dBV, 100Hz
Application circuit
L-output
(RL=47K )
100
+
Vcc
10
+
10
10
+
10
+
14
13
12
11
10
9
8
L=IN
+
-
+
+
+
-
MUTE
BH3527FV
1
2
3
+
R-output
(RL=47K )
100
10
4
MUTE-1
5
MUTE-2
6
7
+
10
R=IN
control
ACTIVE
MUTE-1=H
MUTE-2=L
+
1
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