FAIRCHILD FAN7023

www.fairchildsemi.com
FAN7023
1W CMOS Mono Power Amplifier
Features
Description
• Continuous Average Power is 1.0W (8Ω)
• Low THD: Typical 0.2% @ 1kHz (5V)
• Do Not Need Output Coupling Capacitor or Bootstrap
Capacitor
• Low Shutdown Current: Typical 0.01µA
• Shutdown: High Active
• Built in TSD Circuit
The FAN7023 is a bridge connected audio power amplifier
capable of delivering 1W of continuous average power to an
8Ω load with less than 0.2%(THD) from a 5V power supply.
The FAN7023 requires few external components and
operates on low supply voltage from 2.2V to 5.5V. Since the
FAN7023 does not require output coupling capacitors,
bootstrap capacitors, or snubber networks, it is ideally suited
for low power portable systems that require minimum
volume and weight. The FAN7023 features an externally
controlled gain, low power consumption shutdown mode
(0.01uA,typ.). Additional FAN7023 features include thermal
shutdown protection, unity gain stability, and external gain
set.
Typical Applications
• Cellular Phone
• PDA
• Portable Audio Systems
8-MSOP
10-MLP
1
8-SOP
1
BOTTOM VIEW
1
Internal Block Diagram
4
IN-
VO1
5
3
IN+
20kΩ
20kΩ
2
BP
100kΩ
VDD/2
8
6
VO2
VDD
100kΩ
BIAS
1
SD
GND
7
Rev. 1.1.0
©2003 Fairchild Semiconductor Corporation
FAN7023
Pin Assignments
VO2
GND
VDD
VO1
8
7
6
5
FAN7021
FAN7023
1
2
3
4
SD
BP
IN+
IN-
VO2
10
1
SD
NC
9
2
BP
VDD
8
3
GND
NC
7
4
IN+
VO1
6
5
IN-
10-MLP(BOTTOM VIEW)
Pin Definitions
( ) : 10MLP
Pin Number
Pin Name
Pin Function Description
1(1)
SD
Shutdown
2(2)
BP
Bypass
3(4)
IN+
Input+
4(5)
IN-
Input-
5(6)
VO1
Power AMP Output1
6(8)
VDD
Supply Voltage
7(3)
GND
Ground
8(10)
VO2
Power AMP Output2
Absolute Maximum Ratings (Ta = 25°C)
Parameter
Maximum Supply Voltage
Power Dissipation
Symbol
Value
Unit
VDD
6.0
V
PD
Internally Limited
W
°C
Operating Temperature
TOPR
-40 ~ +85
Storage Temperature
TSTG
-65 ~ +150
°C
Junction Temperature
TJ
150
°C
Thermal Resistance
(Junction to Ambient)
190
Rthja
Remark
8MSOP
°C/W
166
50
10MLP, Single-Layer
10MLP, Multi-Layer
Recommended Operating Conditions (Ta = 25°C)
Parameter
Operating Supply Voltage
2
Symbol
Min.
Typ.
Max.
Unit
VDD
2.2
-
5.5
V
FAN7023
Electrical Characteristics
(RL = 8Ω, Ta = 25°C, unless otherwise specified)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
mA
VDD = 5.0V, UNLESS OTHERWISE SPECIFIED
Quiescent Power Supply Current
IDD
VIN = 0V,IO = 0A
-
1.8
6
Shutdown Current
ISD
VSD = VDD
-
0.01
2.0
µA
Output Offset Voltage
VOS
VIN = 0V
-
5
50
mV
Output Power
PO
THD = 1% (Max.); f = 1kHz
-
1
-
W
Total Harmonic Distortion+Noise
THD+N
PO = 0.25Wrms,gain = 2, f =1kHz
-
0.1
-
%
Power Supply Rejection Ratio
PSRR
VDD ±250mVp, f = 1kHz
-
65
-
dB
VDD = 3.3V, UNLESS OTHERWISE SPECIFIED
Quiescent Power Supply Current
IDD
VIN = 0V,IO = 0A
-
1.5
-
mA
Shutdown Current
ISD
VSD = VDD
-
0.01
-
µA
Output Offset Voltage
VOS
VIN = 0V
-
5
-
mV
Output Power
PO
THD = 1% (Max.);f = 1kHz
-
0.45
-
W
Total Harmonic Distortion+Noise
THD+N
PO = 0.25Wrms, gain =2, f = 1kHz
-
0.15
-
%
Power Supply Rejection Ratio
PSRR
VDD ±250mVp, f = 1kHz
-
65
-
dB
VDD = 2.6V, UNLESS OTHERWISE SPECIFIED
Quiescent Power Supply Current
IDD
VIN = 0V,IO = 0A
-
1.3
-
mA
Shutdown Current
ISD
VSD = VDD
-
0.01
-
µA
Output Offset Voltage
VOS
VIN = 0V
-
5
-
mV
Output Power
PO
THD = 1% (Max.);f = 1kHz
-
0.2
-
W
Total Harmonic Distortion+Noise
THD+N
PO = 0.2Wrms, gain = 2, f = 1kHz
-
0.25
-
%
Power Supply Rejection Ratio
PSRR
VDD ±250mVp, f = 1kHz
-
65
-
dB
3
FAN7023
Performance Characteristics
10
10
VDD=3.3V
RL=8Ω
Power=450mW
1
THD [%]
THD [%]
1
VDD=5V
RL=8Ω
Power=1W
0.1
0.1
0.01
0.01
1E-3
100
1k
1E-3
10k
100
Frequency [Hz]
1k
10k
Frequency [Hz]
Figure 1. THD+N vs. Frequency, VDD =5V
Figure 2. THD+N vs. Frequency, VDD =3.3V
10
1
0.1
f=1 kHz
0.1
f=20 Hz
0.01
1E-3
0.01
100
1k
10k
10m
100m
Frequency [Hz]
10
THD [%]
THD [%]
f=20 kHz
1
f=1 kHz
1
f=1 kHz
0.1
f=20 Hz
100m
VDD=2.6V
RL=8Ω
No Filter
10
0.1
1
Output Power [W]
Figure 5. THD+N vs. Output Power, VDD =3.3V
4
Figure 4. THD+N vs. Output Power, VDD =5V
VDD=3.3V
RL=8Ω
No Filter
f=20 kHz
1
Output Power [W]
Figure 3. THD+N vs. Frequency, VDD =2.6V
10m
VDD=5V
RL=8Ω
No Filter
f=20 kHz
THD [%]
THD [%]
1
VDD=2.6V
RL=8Ω
Power=200mW
10m
f=20 Hz
100m
Output Power [W]
Figure 6. THD+N vs. Output Power, VDD =2.6V
FAN7023
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
-100
0
-10
VDD=5V
RL=8Ω
Vripple=500mVp-p
-20
-30
PSRR [dB]
PSRR [dB]
Performance Characteristics (Continued)
-40
-50
VDD=5V
RL=8Ω, Cin=0.47uF
Vripple=500mVp-p
CBP=0.1uF
CBP=0.47uF
CBP=1uF
CBP=4.7uF
CBP=10uF
-60
-70
-80
100
1k
10k
100
100k
1k
VDD=3.3V
RL=8Ω
Vripple=500mVp-p
100
1k
100k
Figure 8. Power Supply Rejection
Ratio with Capacitor, VDD =5V
Input Terminated to GND
PSRR [dB]
PSRR [dB]
Figure 7. Power Supply Rejection Ratio, VDD =5V
Input Floating
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
-100
10k
Frequency [Hz]
Frequency [Hz]
10k
100k
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
-100
VDD=2.6V
RL=8Ω
Vripple=500mVp-p
100
1k
10k
100k
Frequency [Hz]
Frequency [Hz]
Figure 9. Power Supply Rejection Ratio, VDD =3.3V
Input Floating
Figure 10. Power Supply Rejection Ratio, VDD =2.6V
Input Floating
0.7
0.28
0.26
0.6
Power Dissipation [W]
Power Dissipation [W]
0.24
0.5
VDD=5V
RL=8Ω
F=1kHz
0.4
0.3
0.2
0.22
0.20
VDD=3.3V
RL=8Ω
F=1kHz
0.18
0.16
0.14
0.12
0.10
0.1
-0.2
0.08
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Output Power [W]
Figure 11. Power Dissipation vs. Output Power, VDD =5V
@ THD ≤ 1% (No Filter)
0.0
0.1
0.2
0.3
0.4
0.5
Output Power [W]
Figure 12. Power Dissipation vs. Output Power, VDD =3.3V
@ THD ≤ 1% (No Filter)
5
FAN7023
Performance Characteristics (Continued)
1.6
0.18
1.4
VDD=5V, 10% THD+N
1.2
0.14
Output Power [W]
Power Dissipation [W]
0.16
VDD=2.6V
RL=8Ω
F=1kHz
0.12
0.10
0.08
1.0
VDD=5V, 1% THD+N
VDD=3.3V, 10% THD+N
0.8
0.6
VDD=3.3V, 1% THD+N
0.4
VDD=2.6V, 10% THD+N
0.2
VDD=2.6V, 1% THD+N
0.06
0.0
0.00
0.05
0.10
0.15
0.20
0.25
0.30
4
8
12
Figure 13. Power Dissipation vs. Output Power, VDD =2.6V
@ THD ≤ 1% (No Filter)
20
24
28
32
Figure 14. Output Power vs. Load Resistance
2.0
2.4m
2.2m
2.0m
f=1kHz
RL=8Ω
No Filter
VDD=5V
1.5
1.6m
Output Power [W]
1.8m
Supply Current [A]
16
Load Resistance [Ω]
Output Power [W]
VDD=3.3V
1.4m
1.2m
VDD=2.6V
1.0m
800.0!
600.0!
400.0!
10% THD+N
1.0
1% THD+N
0.5
200.0!
0.0
-200.0!
0.0
0.5
1.0
1.5
2.0
2.5
0.0
2.0
3.0
2.5
3.0
3.5
Shutdown Voltage [V]
4.0
4.5
5.0
5.5
Supply Voltage [V]
Figure 15. Supply Current vs. Shutdown Voltage
Figure 16. Output Power vs. Supply Voltage
3.0
10MLP(Multi-Layer) : 2.5Wmax
2.5
No Load
Ambient Temperature [°C]
Supply Current [A]
2.0m
1.5m
1.0m
500.0!
2.0
1.5
1.0
10MLP(Single-Layer) : 753mWmax
0.5
8MSOP : 657mWmax
0.0
0
1
2
3
4
5
Supply Voltage [V]
6
0.0
0
25
50
75
100
Power Dissipation [W]
Figure 17. Supply Current vs. Supply Voltage
6
Figure 18. Power Derating Curve
125
150
FAN7023
Typical Application Circuit
RF
20kΩ
CI
RI
4
0.47µF
IN-
VO1
5
20kΩ
3
IN+
RL
20kΩ
20kΩ
8Ω
2
VDD
CS
CB
BP
1µF
100kΩ
10µF
VDD/2
8
6
VO2
VDD
RPU
1
SW
100kΩ
BIAS
10kΩ
SD
GND
7
7
FAN7023
Mechanical Dimensions
Package
Dimensions in millimeters
8-MSOP
8
FAN7023
Mechanical Dimensions (Continued)
Package
Dimensions in millimeters/inches
8-SOP
9
FAN7023
Mechanical Dimensions (Continued)
Package
Dimensions in millimeters
10-MLP
BOTTOM VIEW
10
FAN7023
Ordering Information
Device
Package
FAN7023MU
8-MSOP
FAN7023M
8-SOP
FAN7023MUX
8-MSOP
FAN7023MX
8-SOP
FAN7023MPX
10-MLP
Operating Temperature
Packing
Tube
-40°C ~ +85°C
Tape& Reel
11
FAN7023
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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8/28/03 0.0m 001
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 2003 Fairchild Semiconductor Corporation