TECHNICAL DATA
2 x 1 W portable/mains-fed stereo
power amplifier
The ILA7053N is an integrated class-B stereo power amplifier in a 16-lead
dual-in-line (DIL) plastic package. The device, consisting of two BTL
amplifiers, is primarily developed for portable audio applications but may also
be used in mains-fed applications.
•
•
•
•
•
No external components
No switch-ON/OFF clicks
Good overall stability
Low power consumption
Short-circuit-proof
16
1
ILA7053N
N SUFFIX
PLASTIC DI
ORDERING INFORMATION
ILA7053N
Plastic DIP
QUICK REFERENCE DATA
PARAMETER
Supply voltage range
Total quiescent current
Output power
Internal voltage gain
Total harmonic distortion
R
L
=
∞
R
L
= 8
Ω,
V
P
= 6 V, THD = 10%
R
L
= 8
Ω,
V
P
= 6 V
P
O
= 0.1 W, R
L
= 8
Ω,
V
P
= 6 V
CONDITIONS
SYMBOL
V
P
I
tot
P
O
Gv
THD
MIN.
3
-
-
38
-
T
A
=
°
to 150° C
MAX.
18
16
1
40
1.0
UNIT
V
mA
W
dB
%
PINNING
Pin
№
01
02
03
04
05
06
07
08
Symbol
SGND1
IN1
n.c.
n.c.
V
P
IN2
SGND2
n.c.
Description
signal ground 1
input 1
not connected
not connected
supply voltage
input 2
signal ground 2
not connected
Pin
№
09
10
11
12
13
14
15
16
Symbol
OUT2A
GND2
n.c.
OUT2B
OUT1B
GND1
n.c.
OUT1A
Description
output 2 (positive)
power ground 2
not connected
output 2 (negative)
output 1 (negative)
power ground 1
not connected
output 1 (positive)
Note
The information contained within the parentheses refer to the polarity of the loudspeaker terminal to which the output
must be connected.
FUNCTIONAL DESCRIPTION
The ILA7053N is a stereo output amplifier, with an internal gain of 39 dB, which is primarily for use in portable audio
applications but may also be used in mains-fed applications. The current trends in portable audio application design is
to reduce the number of batteries which results in a reduction of output power when using conventional output stages.
The ILA7053N overcomes this problem by using the Bridge-Tied-Load (BTL) principle and is capable of delivering
1.2 W into an 8
Ω
load (V P = 6 V). The load can be short-circuited under all input conditions.
Rev. 00
ILA7053N
+Vp
01
0,1
µF
ILA7053N
16
+
_
220
µF
+
RL
1
Input 1
02
G
N
D-
S
01
13
-
-
Input 2
12
RL
2
06
DC
Volume
07
09
+
10
GND-P
14
GND-P
03
04
08
11
15
1.
2.
3.
This capacitor can be omitted if the 220
µF
electrolytic capacitor is connected close to pin 01.
R
L
= 8
Ω
Resistors R1, R2 = 5,6 kΩ connected to the inputs 02, 06 should be dual.
Fig.1 Block diagram, test and application circuit diagram
Rev. 00
ILA7053N
RATINGS
Limiting values in accordance with the Absolute Maximum System
PARAMETER
Supply voltage
Non-repetitive peak output current
Total power dissipation
Crystal temperature
Storage temperature range
THERMAL RESISTANCE
From junction to ambient R
th j-a
60 K/W
CONDITIONS
SYMBOL
V
P
I
OSM
P
tot
Tc
Tstg
-
-60
MIN.
-
-
see Fig.2
+150
+150
°C
°C
MAX.
18
1.5
UNIT
V
A
Power dissipation
Assuming: V
P
= 6 V and R
L
= 8
Ω:
The maximum sinewave dissipation is 1.8 W, therefore T
amb(max.)
= 150 - (60 x 1.8) = 42°C.
Fig.2 Power derating curve
Rev. 00
ILA7053N
CHARACTERISTICS
V
P
= 6 V; R
L
= 8 W; Tamb = 25°C; unless otherwise specified; measured from test circuit, Fig.2.
PARAMETER
Supply voltage range
Total quiescent current
Input bias current
Supply voltage ripple rejection
Input impedance
DC output offset voltage
Noise output voltage
(RMS value)
Output power
Total harmonic distortion
Internal voltage gain
Channel balance
Channel separation
Frequency response
note 3
R
L
= 8
Ω,
V
P
= 6 V
note 3
note 4
note 5
THD = 10%
P
O
= 0.1 W
note 2
R
L
=
∞;
note 1
CONDITIONS
SYMBOL
V
P
I
tot
I
bias
SVRR
Z
I
∆V
13-16
∆V
12-9
V
no(rms)
V
no(rms)
PO
THD
G
V
∆G
V
α
f
-
-
38
-
40
-
-
-
MIN.
3
-
-
40
MAX.
18
16
300
-
100
100
300
60 (type)
0.8
1.0
40
1
-
100 (type)
UNIT
V
mA
nA
dB
kΩ
mV
mV
µV
µV
W
%
dB
dB
dB
kHz
0.2 to 20 (type)
Notes to the characteristics
1. With a practical load the total quiescent current depends on the offset voltage.
2. Ripple rejection measured at the output with R
S
= 0
Ω
and f = 100 Hz to 10 kHz. The ripple voltage (200 mV) is
applied to the positive supply rail.
3. R
S
= 5 kΩ.
4. The noise output voltage (RMS value) is measured with R
S
= 5 kΩ, unweighted and a bandwidth of 60 Hz to 15 kHz.
5. The noise output voltage (RMS value) is measured with R
S
= 0
Ω
and f = 500 kHz with 5 kHz bandwidth. If
R
L
= 8
Ω
and L
L
= 200 mH the noise output current is only 100 nA.
Rev. 00
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
