an7195z.pdf

(100 KB) Pobierz
AN7195Z_E
ICs for Audio Common Use
AN7195Z
Dual 15 W BTL power IC for car audio
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.
Unit : mm
18.00±0.30
13.50±0.30
4.00±0.20
1.50±0.10
3.60±0.10
1
15
1.27
0.50
+0.20
–0.10
(0.61)
R0.55
(1.80)
(1.95)
0.25
+0.15
–0.05
(2.54)
19.00±0.30
19.30±0.30
HZIP015-P-0745A
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)
Applications
· Car audio
1
n
f
n
n
199607017.010.png 199607017.011.png 199607017.012.png 199607017.013.png 199607017.001.png 199607017.002.png
AN7195Z
ICs for Audio Common Use
n
Block Diagram
Ch.1 GND
3
Ref.
14
Ch.2 GND
Ch.1 Out (-)
4
13
Ch.2 Out (-)
Att.
Protection Cct.
Att.
Ch.1 Out (+)
2
Att.Con.
15
Ch.2 Out (+)
Att.
Att.
n
Pin Descriptions
Pin No.
Description
Pin No.
Description
1
Power supply
9
Grounding (input)
2
Ch.1 output (+)
10
Beep sound input
3
Grounding (output ch.1)
11
Ch.2 input
4
Ch.1 output (-)
12
Ripple filter
5
Standby
13
Ch.2 output (-)
6
Ch.1 input
14
Grounding (output ch.2)
7
Muting
15
Ch.2 output (+)
8
Grounding (sub)
n
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
2
199607017.003.png
ICs for Audio Common Use
AN7195Z
n
Recommended Operating Range
Parameter
Symbol
Range
Unit
Supply voltage
V CC
8.0 to 18.0
V
n
Electrical Characteristics at V CC
=
13.2 V, f
=
1 kHz, T a
=
25
°
C
Parameter
Symbol
Conditions
Min Typ Max Unit
Quiescent current
I CQ
V IN = 0 mV, R L = 4 W
¾
120
250
mA
Standby current
I STB
V IN = 0 mV, R L = 4 W
¾
1
10
mA
Output noise voltage * 1
V NO
R g = 4.7 kW, R L = 4 W
¾
0.22
0.5 mV[rms]
Voltage gain 1
G V1
V IN = 20 mV, R L = 4 W
38
40
42
dB
Total harmonic distortion 1
THD 1 V IN = 20 mV, R L = 4 W
¾
0.07
0.4
%
Maximum output power 1
P O1
THD = 10%, R L = 4 W
12
14
¾
W
Ripple rejection ratio * 1
RR
R L =
4
W
, R g =
4.7 k
W
,
60
70
¾
dB
V r =
1 V[rms], f r =
1 kHz
Channel balance
CB
V IN = 20 mV, R L = 4 W
¾
0
1
dB
Cross-talk *1
CT
V IN
=
20 mV, R L =
4
W
,
55
65
¾
dB
R g
=
4.7 k
W
Output offset voltage
V Off
R g = 4.7 kW, R L = 4 W
-300
0
300
mV
Muting effect * 1
MT
V IN = 20 mV, R L = 4 W
70
82
¾
dB
Input impedance
Z i
V IN = ± 0.3 V DC
22
30
35
kW
Voltage gain 2
G V2
V IN = 20 mV, R L = 2 W
38
40
42
dB
Total harmonic distortion 2
THD 2 V IN = 20 mV, R L = 2 W
¾
0.1
0.5
%
Maximum output power 2
P O2
THD = 10%, R L = 2 W
12
20
¾
W
Shock noise * 2
V S
R L
=
4
W
, R g =
4.7 k
W
-
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
¾
0.10
0.5
%
R g
=
4.7 k
W
, R L
=
¥
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
5 V
0 V
120 ms
120 ms
3
199607017.004.png
AN7195Z
ICs for Audio Common Use
n
Terminal Equivalent Circuits
Pin No.
Equivalent circuit
Description
DC Voltage
1
¾
Supply voltage pin
13.2 V
Supply connection pin
2
Ch.1 output pin (+)
6.6 V
1
Pre-amp.
Drive circuit
Ch.1 positive-phase output pin
2
Drive circuit
V REF = 6.6 V
3
15 kW
300 W
3
¾
GND (output)
0 V
Grounding pin for ch.1 output
4
1
Ch.1 output pin (-)
6.6 V
Pre-amp.
Drive circuit
Ch.1 inverted-phase output pin
4
Drive circuit
15 kW
V REF = 6.6 V
3
300 W
ɹ
5
Standby control pin
¾
5
10 kW
Standby changeover pin
Threshold voltage approx. 2.1 V
900 W
6
Ch.1 input pin
0 mV to10 mV
6
Approx.
15 mA
Approx.
15 mA
Ch.1 input signal applied pin
Input impedance 30 kW
200 W
400 W
30 kW
4
199607017.005.png
ICs for Audio Common Use
AN7195Z
Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
Description
DC Voltage
7
Mute control pin
¾
7
5 kW
Mute changeover pin
Threshold voltage approx. 2.0 V
8
¾
GND (substrate)
0 V
Being connected with substrate only
9
¾
GND (input)
0 V
Ground pin for input
10
300 W
15 kW
Beep sound input pin
2.1 V
V REF = 2.1 V
300 W
15
Beep sound signal input pin
Input impedance 25 kW
25 kW
25 kW
10
300 W
V REF = 2.1 V
300 W
15 kW
2
11
Ch.2 input pin
0 mV to10 mV
11
Approx.
15 mA
Approx.
15 mA
Ch. 2 input signal applied pin
Input impedance 30 kW
200 W
400 W
30 kW
12
Ripple filter pin
13.0 V
V CC
30 kW
Output current 3 mA to 10 mA
12
Quick
discharge
circuit
200 mA
20 kW
5
n
199607017.006.png 199607017.007.png 199607017.008.png 199607017.009.png

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin