Page 1
ICs for Audio Common Use
AN7511, AN7511S
1-W BTL audio power amplifier
■ Overview
The AN7511 and AN7511S are the audio power amplifier ICs with 1-ch output. The BTL (Balanced Transformer-Less) method can provide fewer external parts and
more easy design for applications.
■ Features
• 1-W output (8 Ω) with supply voltage of 5 V: AN7511
• 0.5-W output (16 Ω) with supply voltage of 5 V: AN7511S
• On-chip standby function
• On-chip muting function
■ Applications
• Televisions, radios, and personal computers
AN7511
1
2
3
9.2±0.2
4
5.01±0.20
6.4±0.2
7.62±0.303° to 15°
DIP008-P-0300
58
41
Unit: mm
8
7
6
5
3.35±0.20 3.89±0.20
+0.10
–0.05
0.30
2.54
0.30±0.26
Unit: mm AN7511S
(1.05)
0.15±0.10
6.40±0.20
4.30±0.20
1.45±0.10
1.75max.
0° to10°
0.50±0.20
0.9
1.0
0.5
1.3
1.5
■ Block Diagram
Output
Output
(for output)
V
CC
GND
(0.60)
1.27
+0.10
0.40
–0.05
0.10
Seating plane
SOP008-P-0225C
5
Ripple
rejection
1
Standby
circuit
Attenuator
6
Thermal
shutdown
28 dB
8
Attenuator
control
7
28 dB
2
Input
3
GND
4
Mute
1
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AN7511, AN7511S ICs for Audio Common Use
■ Pin Descriptions
Pin No. Description
1 Standby (standby state if this pin is open.)
2 Input
3 Ground (for input)
4 Muting (muting on if this pin is open.)
5 Supply voltage
6 + Output
7 Ground (for output ch.1)
8 − Output
■ Absolute Maximum Ratings
Parameter Symbol Rating Unit
2
Supply voltage
Supply current I
Power dissipation
Operating ambient temperature
Storage temperature
Note)*1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
2: At no signal
*
3: The power dissipation shown is the value for Ta = 70°C.
*
*
3
*
1
*
1
*
V
CC
CC
P
D
T
opr
T
stg
14 V
1.0 A
541 mW
−25 to +70 °C
−55 to +150 °C
■ Recommended Operating Range
Parameter Symbol Range Unit
Supply voltage V
CC
3.5 to 13.5 V
■ Electrical Characteristics at VCC = 5.0 V, RL = 8 Ω, f = 1 kHz, Ta = 25°C ± 2°C
Parameter Symbol Conditions Min Typ Max Unit
Quiescent circuit current I
Standby current I
Output noise voltage
*
V
Voltage gain G
Total harmonic distortion THD PO = 0.25 W 0.05 0.5 %
Maximum output power P
Ripple rejection ratio
*
RR Rg = 10 kΩ, VR = 1 V[rms], fR = 120 Hz 30 50 dB
Output offset voltage V
Muting effect
Note)*: In measuring, the filter for the range of 15 Hz to 30 kHz (12 dB/OCT) is used.
*
MT PO = 0.25 W 70 86 dB
VIN = 0 mV 30 60 mA
CQ
VIN = 0 mV 110µA
STB
Rg = 10 kΩ0.14 0.4 mV[rms]
NO
PO = 0.25 W 32 34 36 dB
V
THD = 10% 0.8 1.1 W
O1
Rg = 10 kΩ−300 0 300 mV
OFF
2
Page 3
ICs for Audio Common Use AN7511, AN7511S
■ Terminal Equivalent Circuits
Pin No. Pin name Equivalent circuit Voltage
1 Standby pin 5 V
V
CC
30 kΩ
To the shock
sound prevention
circuit
V
RF
(≈ VCC)
1
200 Ω
2 kΩ
50 kΩ
12 kΩ 10 kΩ
33 kΩ
5 kΩ
1/2 V
CC
10 kΩ
To the constant
current circuit
2 Input pin 0 mV to 10 mV
V
CC
30 µA
200 Ω 400 Ω
2
30 kΩ
3 GND 0 V
4 Muting pin
V
CC
3
50 µA
5 kΩ
5 kΩ
200 Ω
4
Ref. = 1.25 V
To Mute
3
Page 4
AN7511, AN7511S ICs for Audio Common Use
■ Terminal Equivalent Circuits (continued)
Pin No. Pin name Equivalent circuit Voltage
5V
CC
6 + Output pin 2.15 V
1/2 V
CC
5.0 V
V
CC
200 Ω
50 Ω
6
20 kΩ800 Ω
7 GND 0 V
8 − Output pin 2.15 V
7
V
CC
1/2 V
CC
200 Ω
50 Ω
8
20 kΩ800 Ω
■ Usage Notes
• Please avoid the short circuit to VCC , ground, or load short circuit.
• Please connect the cooling fin with the GND potential.
• The thermal shutdown circuit operates at about T
cally if the temperature drops.
• Please carefully design the heat radiation especially when you take out high power at high V
• Please connect only the ground of signal with the signal GND of the amplifier in the previous stage.
4
= 150°C. However, the thermal shutdown circuit is reset automati-
j
.
CC
Page 5
ICs for Audio Common Use AN7511, AN7511S
■ Technical Data
1. Package power dissipation
T
P
D
a
1
000
900
800
700
(mW)
D
600
500
400
Power dissipation P
300
200
100
2. Main characteristics
V
P
O
CC
8
7
6
(W)
5
O
4
3
Output power P
2
1
0
02468101214
Supply voltage VCC (V)
PO (8 Ω)
Independent IC without a heat sink
= 148°C/W
R
th(j-a)
= 845 mW (25°C)
P
D
0
0 25 150
50 7570 100 125
Ambient temperature Ta (°C)
100
90
80
(A)
CQ
70
60
f = 1 kHz
=
THD
10%
R
= 8 Ω
L
400 Hz HPF
30 kHz LPF
Both ch. inputs
= 10 kΩ
R
g
= 5 V
V
STB
= 0 V
V
MUTE
50
40
30
20
Quiescent circuit current I
10
0
02468101214
ICQ , I
I
STB
STB
V
I
CQ
CC
Supply voltage VCC (V)
RL = 8 Ω
Both ch. inputs
= 10 kΩ
R
g
= 0 V/5 V
V
STB
= 0 V
V
MUTE
10
9
8
7
6
5
4
3
2
1
0
(µA)
STB
Standby current I
5
Page 6
AN7511, AN7511S ICs for Audio Common Use
■ Technical Data (continued)
2. Main characteristics (continued)
, THD V
P
O
10
P
1
(W)
O
0.1
THD (100 kHz)
Output power P
0.01
THD (1 kHz)
0.001
1 10 100 1
Input voltage VIN (mV[rms])
GV , PO f THD f
35
34
33
32
(dB)
V
31
30
29
28
Voltage gain G
27
26
25
10 100 1
G
V
P
O
VCC = 5 V
= 0.25 W
P
O
THD = 10%
= 8 Ω
R
L
400 Hz HPF
30 kHz LPF
000 10 000 100 000
Frequency f (Hz)
IN
O
THD (10 kHz)
VCC = 5 V
f = 1 kHz
= 8 Ω
R
L
400 Hz HPF
30 kHz LPF
Both ch. inputs
= 10 kΩ
R
g
V
STB
V
MUTE
Both ch. inputs
Rg = 10 kΩ
V
V
= 5 V
= 0 V
STB
MUTE
= 5 V
= 0 V
000
100
10
1
0.1
0.01
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
(W)
C
Power consumption P
Total harmonic distortion THD (%)
(W)
O
Output power P
Total harmonic distortion THD (%)
0.01
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0 0.5 1.0 1.5
10
1
0.1
10 100 1
PC , ICC P
PC (8 Ω)
Output power PO (W)
VCC = 5 V
= 0.25 W
P
O
= 8 Ω
R
L
400 Hz HPF
30 kHz LPF
Both ch. inputs
THD
Frequency f (Hz)
O
VCC = 5 V
f = 1 kHz
= 8 Ω
R
L
400 Hz HPF
30 kHz LPF
Both ch. inputs
= 10 kΩ
R
g
= 5 V
V
STB
= 0 V
V
MUTE
ICC (8 Ω)
= 10 kΩ
R
g
= 5 V
V
STB
= 0 V
V
MUTE
000 10 000 100 000
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
(A)
CC
Supply current I
GV , THD V
CC
35
34
33
G
V
32
(dB)
V
31
30
29
28
Voltage gain G
27
26
25
02468101214
THD
Supply voltage VCC (V)
6
PO = 0.25 W
f = 1 kHz
= 8 Ω
R
L
400 Hz HPF
30 kHz LPF
Both ch. inputs
= 10 kΩ
R
g
= 5 V
V
STB
= 0 V
V
MUTE
RR V
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
Total harmonic distortion THD (%)
0.1
0.0
80
70
60
50
RR
40
30
20
Ripple rejection ratio RR (dB)
10
0
02468101214
CC
RL = 8 Ω
= 10 kΩ
R
g
= 5 V
V
STB
V
MUTE
V
RIPPLE
f
RIPPLE
= 0 V
= 1 V[rms]
= 120 Hz
Supply voltage VCC (V)
Page 7
ICs for Audio Common Use AN7511, AN7511S
■ Technical Data (continued)
2. Main characteristics (continued)
RR V
80
70
60
VCC = 5 V
= 8 Ω
R
L
30 kHz LPF
R
= 10 kΩ
g
RIPPLE
V
V
V
f
STB
MUTE
RIPPLE
RIPPLE
= 5 V
= 0 V
= 1 V[rms]
= 120 Hz
80
70
60
RR f
RIPPLE
50
40
RR
30
20
Ripple rejection ratio RR (dB)
10
0
10 100 1 000 10 000
Power supply ripple voltage V
VNO V
CC
RIPPLE
(mV[rms])
800
700
VNO (FLAT)
600
(mV[rms])
500
NO
400
300
200
Output noise voltage V
100
0
02468101214
V
NO
RL = 8 Ω
R
= 10 kΩ
g
DIN audio filter
V
STB
V
MUTE
Supply voltage VCC (V)
= 5 V
= 0 V
50
40
30
VCC = 5 V
= 8 Ω
R
L
= 10 kΩ
R
20
g
= 5 V
Ripple rejection ratio RR (dB)
V
STB
= 0 V
V
MUTE
10
0
10 100 1 000 10 000 100 000
= 1 V[rms]
V
RIPPLE
= 120 Hz
f
RIPPLE
Power supply ripple frequency f
VNO R
g
RIPPLE
800
700
600
(mV[rms])
500
NO
400
VNO (FLAT)
VCC = 5 V
R
= 8 Ω
L
R
= 10 kΩ
g
DIN audio filter
300
200
Output noise voltage V
100
0
10 100 1 000 10 000 100 000
V
NO
Input impedance Rg (Ω)
RR
(Hz)
V
= 5 V
STB
V
= 0 V
MUTE
100
90
80
70
60
Muting effect MT (dB)
50
40
20 4 6 8 10 12 14
Supply voltage VCC (V)
MT V
MT
CC
PO = 0.25 W
f = 1 kHz
= 8 Ω
R
L
400 Hz HPF
30 kHz LPF
= 10 kΩ
R
g
= 5 V
V
STB
= 0 V
V
MUTE
MT V
IN
100
90
MT
80
70
VCC = 5 V
60
Muting effect MT (dB)
50
40
1 10 100 1
f = 1 kHz
= 8 Ω
R
L
400 Hz HPF
30 kHz LPF
= 10 kΩ
R
g
= 5 V
V
STB
= 0 V
V
MUTE
Input voltage VIN (mV[rms])
000
7
Page 8
AN7511, AN7511S ICs for Audio Common Use
■ Technical Data (continued)
2. Main characteristics (continued)
V
CQ
Standby voltage V
STB
STB
I
CQ
VCC = 5 V
R
R
V
(V)
= 8 Ω
L
= 10 kΩ
g
MUTE
= 0 V
100
95
90
85
80
75
70
65
Muting effect MT (dB)
60
55
50
10 100 1
MT fI
80
70
(A)
60
CQ
MT
000 10 000 100 000
Frequency f (Hz)
V
= 5 V
CC
P
= 0.25 W
O
R
= 8 Ω
L
R
= 10 kΩ
g
V
STB
V
MUTE
= 5 V
= 0 V
50
40
30
20
Quiescent circuit current I
10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
3. Example of PCB pattern
Out +
Out −
V
CC
GND
8765
1234
GND
Mute
V
IN
Standby
8
Page 9
ICs for Audio Common Use AN7511, AN7511S
■ Application Circuit Example
Out1
8 Ω
V
CC
8
1
10 µF
Standby V
7
2
68 kΩ
270 kΩ
IN1
6
3
10 kΩ
5
4
1.0 µF
47 kΩ
100 kΩ
Mute
9
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