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Электронный компонент: FAN7005MX

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2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0
Features
200mW and 300mW Power Per Each Channel into 8
Load with Less Than 0.3% and 10% THD+N,
Respectively
Low Shutdown Current : 0.1
A(Typ.)
No Bootstrap Capacitors or Snubber Circuits are
Necessary
Stable Unity-Gain
Guaranteed Stability Under No Load Condition
External Gain Configuration Capability
Thermal Shutdown Protection Circuitry
Pop Reduction Circuit
8MSOP Surface Mount Packaging
Typical Applications
PDA
MP3/CDP
Portable Audio System
Description
The FAN7005 is a dual, fully differential audio power ampli-
fier delivering 200mW(typ.) of continuous power into an 8
load. When driving 200mW into an 8
load from a 5V
power supply, the FAN7005 has less than 0.3% of THD+N
over the entire audible frequency range. To reduce the power
consumption in portable applications, the FAN7005 provides
a shutdown capability. In shutdown condition, current con-
sumption is reduced to less than 2
A. The FAN7005 is
designed specifically to provide high quality output power
with a minimal amount of external components using surface
mount packaging. Since the additional snubber circuits or
bootstrap capacitors are not needed, the FAN7005 is well
suited for portable systems and other hand-held devices.
Internal Block Diagram
FAN7005MU(8MSOP)
FAN7005M(8SOP)
Bias
2
8
5
3
4
6
7
1
20k
100k
VDD/2
V
DD
RIN
SDH
GND
BP
LIN
LOUT
ROUT
100k
20k
Bias
8
6
3
1
2
4
5
7
100k
VDD/2
V
DD
RIN
SDH
GND
BP
LIN
LOUT
ROUT
20k
20k
100k
FAN7005
200mW Stereo Power Amplifier with Shutdown
8MSOP
8SOP
1
1
FAN7005
2
Pin Assignments
Pin Definitions
Absolute Maximum Ratings
(Note2)
Operating Ratings
Pin Number
Pin Name
Pin Function Description
1(3)
BP
Tap to Voltage Divider for Internal a Half Supply Bias
2(4)
GND
Ground Connection for Circuitry
3(5)
SDH
Shutdown all Amplifier, Hold High to Shutdown, Hold Low for Normal
Operation
4(6)
LIN
Signal Input Left-Channel
5(7)
LOUT
Output Left-Channel
6(8)
VDD
Supply Voltage Input
7(1)
ROUT
Output Right-Channel
8(2)
RIN
Signal Input Right-Channel
Parameter
Symbol
Value
Unit
Remark
Maximum Supply Voltage
V
DD
6.0
V
-
Storage Temperature
T
STG
-65 ~ +150
C
-
Power Dissipation (Note3)
P
D
Internally Limited
W
-
Thermal Resistance (Note3)
Rthja
210
C/W
8MSOP, Junction to Ambient
Parameter
Symbol
Min.
Typ.
Max.
Unit
Operating Supply Voltage
V
DD
2.7
-
5.5
V
Operating Temperature
T
OPR
-40
-
+85
C
FAN7005MU(8MSOP)
FAN7005M(8SOP)
8
7
6
5
1
2
3
4
BP GND
LIN
LOUT
VDD
RIN
SDH
ROUT
7 0 0 5
F
YWW
8
7
6
5
1
2
3
4
BP GND
LIN
LOUT
VDD
RIN
SDH
ROUT
0 0 5
YWW
Y ; Yearly Code
WW ; Weekly Code
( ) : 8SOP
FAN7005
3
Electrical Characteristics
(Notes1,2)
(
Ta = 25
C,
unless otherwise specified)
Note:
1. All voltages are measured with respect to the ground pin, unless otherwise specified.
2. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate
conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state
DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This
assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is
given, however, the typical value is a good indication of device performance.
3. The maximum power dissipation must be derated at elevated temperatures and is dictated by T
JMAX
, Rthja and the ambient
temperature T
A
. The maximum allowable power dissipation is P
DMAX
= (T
JMAX
-T
A
)/Rthja. For the FAN7005, T
JMAX
=
150
C, and the typical junction-to-ambient thermal resistance, when board mounted, is 210C/W for the 8MSOP Package.
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
V
DD
= 5.0V, UNLESS OTHERWISE SPECIFIED
Quiescent Power Supply Current
I
DD
No Input, No Load
-
2.2
5.0
mA
Shutdown Current
I
SD
V
SD
=V
DD
-
0.1
2.0
A
Output Offset Voltage
V
OFF
V
IN
=0V
-25
0
25
mV
Output Power
P
O
THD=0.3% (Max.),
f=1kHz
R
L
=8
125
200
-
mW
R
L
=32
-
85
-
mW
THD=10% (Max.),
f=1kHz
R
L
=8
-
300
-
mW
R
L
=32
-
110
-
mW
Total Harmonic Distortion+Noise
THD+N
R
L
=8
, Po=125mWrms, f=1kHz
-
0.04
-
%
R
L
=32
, Po=75mWrms, f=1kHz
-
0.015
-
%
Power Supply Rejection Ratio
PSRR
C
B
=1
F, V
RIPPLE
=250mVrms, f=1kHz
-
50
-
dB
V
DD
= 3.0V, UNLESS OTHERWISE SPECIFIED
Quiescent Power Supply Current
I
DD
No Input, No Load
-
1.8
-
mA
Shutdown Current
I
SD
V
SD
=V
DD
-
-
2.0
A
Output Offset Voltage
V
OFF
V
IN
=0V
-25
0
25
mV
Output Power
P
O
THD=0.3% (Max.),
f=1kHz
R
L
=8
-
70
-
mW
R
L
=32
-
30
-
mW
THD=10% (Max.),
f=1kHz,
R
L
=8
-
95
-
mW
R
L
=32
-
35
-
mW
Total Harmonic Distortion+Noise
THD+N
R
L
=8
, Po=70mWrms, f=1kHz
-
0.05
-
%
R
L
=32
, Po=25mWrms, f=1kHz
-
0.02
-
%
Power Supply Rejection Ratio
PSRR
C
B
=1
F, V
RIPPLE
=200mVrms, f=1kHz
-
50
-
dB
FAN7005
4
Performance Characteristics
Table of Graphs
Figure
THD+N, Total Harmonic Distortion plus Noise
Output Power
1,2,3,4,5,6
Power Dissipation
24,25
THD+N, Total Harmonic Distortion plus Noise
Frequency
7,8,9,10,11,12
PSRR, Power Supply Rejection Ratio
13,14
Cross Talk
15
Output Level
16,17,18,19,20
Noise Floor
21
Supply Current
Supply Voltage
22
Output Power
26,27
Dropout Voltage
30
Supply Current
Shutdown Voltage
23
Output Power
Load Resistance
28,29
Power Dissipation
Ambient Temperature
31
FAN7005
5
Typical Performance Characteristics
Figure 1. THD+N vs. Output Power
Figure 2. THD+N vs. Output Power
Figure 3. THD+N vs. Output Power
Figure 4. THD+N vs. Output Power
Figure 5. THD+N vs. Output Power
Figure 6. THD+N vs. Output Power
Output Power (W)
TH
D + N

(
%
)
0.001
10
0.01
1
10m
VDD=5V
RL=8
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
0.1
0.5
0.1
Output Power (W)
TH
D + N

(
%
)
0.001
10
0.01
1
10m
VDD=5V
RL=8
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
0.1
0.5
0.1
0.001
10
0.01
0.1
1
10m
Output Power (W)
THD
+

N (%
)
VDD=5V
RL=16
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
0.1
0.3
0.001
10
0.01
0.1
1
10m
Output Power (W)
THD
+

N (%
)
VDD=5V
RL=16
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
0.1
0.3
Output Power (W)
10m
0.001
10
1
50m
0.1
0.01
0.1
THD
+

N (%
)
VDD=5V
RL=32
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
Output Power (W)
10m
0.001
10
1
50m
0.1
0.01
0.1
THD
+

N (%
)
VDD=5V
RL=32
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
Output Power (W)
TH
D +

N (
%
)
10m
0.01
0.001
0.1
1
10
VDD=3V
RL=8
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
0.1
0.2
Output Power (W)
TH
D +

N (
%
)
10m
0.01
0.001
0.1
1
10
VDD=3V
RL=8
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
0.1
0.2
Output Power (W)
T
HD + N (%)
10
0.001
10m
50m
0.1
VDD=3V
RL=16
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
0.01
0.1
1
Output Power (W)
T
HD + N (%)
10
0.001
10m
50m
0.1
VDD=3V
RL=16
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
0.01
0.1
1
10
10m
Output Power (W)
THD + N
(%
)
20m
30m
40m
50m
1
0.1
0.01
0.001
VDD=3V
RL=32
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz
10
10m
Output Power (W)
THD + N
(%
)
20m
30m
40m
50m
1
0.1
0.01
0.001
VDD=3V
RL=32
Av=-1
BW < 80kHz
f = 1kHz
f = 20kHz