ICs for Audio Common Use
1
HZIP015-P-0745A
Unit : mm
18.000.30
13.500.30
3.600.10
10.00.30
1
15
4.000.20
1.500.10
0.50
+0.20
0.10
(0.61)
(2.54)
0.25
+0.15
0.05
R0.55
3.250.10
13.250.30
18.950.50
15.650.50
1.27
(1.80)
(1.95)
19.000.30
19.300.30
2.400.50
AN7195Z
Dual 15 W BTL power IC for car audio
s
Overview
The AN7195Z is an audio power IC developed for the
sound output of car audio (dual 15 W).
It is incorporating various protection circuits to pro-
tect the IC from destruction by GND-open short-circuit
to GND and power supply surge which are the most im-
portant subjects of power IC protection, and the IC will
largely contribute to a high reliability design of equip-
ment.
It is also incorporating the industry's first excellent
muting circuit, which is free from shock noise, so that a
shock noise design under the set transient condition can
be made easily when the muting circuit is used together
with its standby function.
In addition, the AN7195Z is pin compatible with the
AN7136Z (dual 20 W), so that the identical pattern design
is allowed for high-class types as well as popular types.
s
Features
Built-in various protection circuits (realizing high break-
down voltage against destruction )
Power supply surge breakdown voltage of 100 V or more
Ground-open breakdown voltage of 14 V or more
Built-in standby function (free from shock noise at
standby on/off)
Built-in muting function
Free from shock noise at mute-on/off
Adapting attenuator method so that abnormal sound due
to waveform deformation is not generated
Attack time, recovery time of 50 ms or less
Reduction in external components (parts reduction to
half compared with the AN7176K)
It eliminates the need for NF and BS electrolytic ca-
pacitors,
Muting function is unnecessary
Power supply choke coil is unnecessary
Provided with beep sound input pin
High sound quality design
Pin compatible with the AN7136Z (dual 20 W)
s
Applications
Car audio
AN7195Z
ICs for Audio Common Use
2
Mute
GND(sub)
GND(input)
Beep In
Ch.1 In
Ch.2 In
Standby
Ref.
Protection Cct.
Att.Con.
Att.
Att.
Att.
Att.
3
4
2
14
13
12
1
V
CC
8
Ripple f
ilter
10
6
5
7
11
9
15
Ch.1 GND
Ch.2 GND
Ch.1 Out (
-
)
Ch.1 Out (
+
)
Ch.2 Out (
-
)
Ch.2 Out (
+
)
s
Pin Descriptions
s
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply voltage
*2
V
CC
25
V
Peak supply voltage
*3
V
surge
80
V
Supply current
I
CC
9.0
A
Power dissipation
*4
P
D
32.5
W
Operating ambient temperature
*1
T
opr
-
30 to
+
85
C
Storage temperature
*1
T
stg
-
55 to
+
150
C
Note) *1 : All items are at T
a
=
25
C, except for the operating ambient temperature and storage temperature.
*2 : Without signal
*3 : Time = 0.2 s
*4 : T
a
=
85
C
Pin No.
Description
1
Power supply
2
Ch.1 output (
+
)
3
Grounding (output ch.1)
4
Ch.1 output (
-
)
5
Standby
6
Ch.1 input
7
Muting
8
Grounding (sub)
Pin No.
Description
9
Grounding (input)
10
Beep sound input
11
Ch.2 input
12
Ripple filter
13
Ch.2 output (
-
)
14
Grounding (output ch.2)
15
Ch.2 output (
+
)
s
Block Diagram
ICs for Audio Common Use
AN7195Z
3
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Quiescent current
I
CQ
V
IN
=
0 mV, R
L
=
4
120
250
mA
Standby current
I
STB
V
IN
=
0 mV, R
L
=
4
1
10
A
Output noise voltage
*1
V
NO
R
g
=
4.7 k
, R
L
=
4
0.22
0.5
mV[rms]
Voltage gain 1
G
V1
V
IN
=
20 mV, R
L
=
4
38
40
42
dB
Total harmonic distortion 1
THD
1
V
IN
=
20 mV, R
L
=
4
0.07
0.4
%
Maximum output power 1
P
O1
THD
=
10
%
, R
L
=
4
12
14
W
Ripple rejection ratio
*1
RR
R
L
=
4
, R
g
=
4.7 k
,
60
70
dB
V
r
=
1 V[rms], f
r
=
1 kHz
Channel balance
CB
V
IN
=
20 mV, R
L
=
4
0
1
dB
Cross-talk
*1
CT
V
IN
=
20 mV, R
L
=
4
,
55
65
dB
R
g
=
4.7 k
Output offset voltage
V
Off
R
g
=
4.7 k
, R
L
=
4
-
300
0
300
mV
Muting effect
*1
MT
V
IN
=
20 mV, R
L
=
4
70
82
dB
Input impedance
Z
i
V
IN
=
0.3 V
DC
22
30
35
k
Voltage gain 2
G
V2
V
IN
=
20 mV, R
L
=
2
38
40
42
dB
Total harmonic distortion 2
THD
2
V
IN
=
20 mV, R
L
=
2
0.1
0.5
%
Maximum output power 2
P
O2
THD
=
10
%
, R
L
=
2
12
20
W
Shock noise
*2
V
S
R
L
=
4
, R
g
=
4.7 k
-
100
0
100
mV[p-0]
V
STB
=
on/off,
50 Hz HPF-on
Total harmonic distortion 3
THD
3
V
IN
=
10 mV, f
IN
=
20 kHz
0.10
0.5
%
R
g
=
4.7 k
, R
L
=
s
Electrical Characteristics at V
CC
=
13.2 V, f
=
1 kHz, T
a
=
25
C
Note) *1 : Measurement using a bandwidth 15 Hz to 30 kHz (12 dB/OCT) filter.
*2 : For V
STB
=
on/off, change over the standby terminal by the voltages of 0 V and 5 V at the time shown below.
Standby terminal voltage
s
Recommended Operating Range
Parameter
Symbol
Range
Unit
Supply voltage
V
CC
8.0 to 18.0
V
5 V
0 V
120 ms
120 ms
AN7195Z
ICs for Audio Common Use
4
Pin No.
Equivalent circuit
Description
DC Voltage
1
Supply voltage pin
13.2 V
Supply connection pin
2
Ch.1 output pin (
+
)
6.6 V
Ch.1 positive-phase output pin
3
GND (output)
0 V
Grounding pin for ch.1 output
4
Ch.1 output pin (
-
)
6.6 V
Ch.1 inverted-phase output pin
5
Standby control pin
Standby changeover pin
Threshold voltage approx. 2.1 V
6
Ch.1 input pin
0 mV to10 mV
Ch.1 input signal applied pin
Input impedance 30 k
15 k
300
2
1
3
Pre-amp.
V
REF
=
6.6 V
Drive circuit
Drive circuit
s
Terminal Equivalent Circuits
Drive circuit
Drive circuit
15 k
300
4
1
3
Pre-amp.
V
REF
=
6.6 V
5
900
10 k
Approx.
15
A
Approx.
15
A
6
200
30 k
400
ICs for Audio Common Use
AN7195Z
5
s
Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
Description
DC Voltage
7
Mute control pin
Mute changeover pin
Threshold voltage approx. 2.0 V
8
GND (substrate)
0 V
Being connected with substrate only
9
GND (input)
0 V
Ground pin for input
10
Beep sound input pin
2.1 V
Beep sound signal input pin
Input impedance 25 k
11
Ch.2 input pin
0 mV to10 mV
Ch. 2 input signal applied pin
Input impedance 30 k
12
Ripple filter pin
13.0 V
Output current 3 mA to 10 mA
7
5 k
15
10
300
25 k
300
15 k
2
300
25 k
300
15 k
V
REF
=
2.1 V
V
REF
=
2.1 V
Approx.
15
A
Approx.
15
A
11
200
30 k
400
20 k
30 k
200
A
12
V
CC
Quick
discharge
circuit
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