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PDF AN7196Z Data sheet ( Hoja de datos )
| Número de pieza | AN7196Z | |
| Descripción | Dual 15 W BTL power IC for car audio | |
| Fabricantes | Panasonic Semiconductor | |
| Logotipo |  |
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ICs for Audio Common Use
AN7196Z
Dual 15 W BTL power IC for car audio
s Overview
The AN7196Z is an audio power IC developed for the
sound output of car audio (dual 15 W). Especially, this
circuit has solved the problem of heat radiation design
inherent to a single chip IC with 4-channel audio ouput
and realized a corresponding space saving at the same
time.
In addition, it is incorporating various protection cir-
cuits to protect the IC from destruction by GND-open
short-circuit to GND and power supply surge which are
the most important subjects of power IC protection, and
the IC will largely contribute to a high reliability design
of equipment.
It is also incorporating the industry's first perfect
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.
The AN7196Z is pin compatible with the AN7191NZ
(dual 20 W), so that the identical pattern design is allowed
for high-class types as well as popular types.
18.00±0.30
13.50±0.30
φ3.60±0.10
Unit : mm
4.00±0.20
1.50±0.10
1 15
1.27
+0.20
0.50–0.10
(0.61)
R0.55
(1.80)
(1.95)
(2.54)
+0.15
0.25–0.05
19.00±0.30
19.30±0.30
HZIP015-P-0745A
s Features
• Built-in various protection circuits (realizing high breakdown voltage against destruction )
Power supply surge breakdown voltage of 100 V or more
Ground open breakdown voltage of 16 V or more
• Built-in standby function (free from shock noise at standby on/off)
• Built-in muting function (the industry's first)
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
• Space saving design is possible with a small size package
A heat radiation design that has been a problem particularly in a 4-ch. single chip IC can be done by the conventional
method.
• Reduction in external components (parts reduction to half compared with the AN7176K)
It eliminates the need for NF and BS electrolytic capacitors,
Muting function is unnecessary
Power supply choke coil is unnecessary
• Provided with beep sound input pin
• Pin compatible with the AN7191NZ (dual 20 W)
s Applications
• Car audio
1
1 page  
ICs for Audio Common Use
s Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
7
7
5 kΩ
AN7196Z
Description
Mute control pin
Mute changeover pin
Threshold voltage approx. 2.0 V
DC Voltage
8
9
10
600 Ω
VREF = 2.1 V 600 Ω
25 kΩ
25 kΩ
10
600 Ω
VREF = 2.1 V 600 Ω
GND (substrate)
Being connected with substrate only
GND (input)
15 kΩ
Ground pin for input
Beep sound input pin
Beep sound signal input pin
15
Input impedance 25 kΩ
2
15 kΩ
0V
0V
2.1 V
11
11
200 Ω
Approx. Approx.
15 µA 15 µA
400 Ω
Ch.2 input pin
Ch. 2 input signal applied pin
Input impedance 30 kΩ
0 mV to10 mV
30 kΩ
12 Ripple filter pin
VCC
30 kΩ
Output current 3 mA to 10 mA
12
Quick
discharge
circuit
20 kΩ
200 µA
13.0 V
5
5 Page 
ICs for Audio Common Use
AN7196Z
s Technical Information (continued)
[2] Application note (continued)
10. Beep sound input function
1) The application circuit using the beep sound input is shown in figure 8. Connect the beep signals from the
microcomputer to pin 10 via the capacitor C1 for DC cut and the resistor R1 for voltage gain adjustment.
2) The voltage gain of beep sound terminal is approx. −4.3 dB. With settings shown in the following drawing, it
is approx. −17.2 dB (f = 1 kHz).
3) The beep signal is outputted to output terminals, pin 2 and pin 15 only.
VREF = 2.1 V
600 Ω
C1 47 kΩ
Beep input
0.022 µF R1
300
GV =
25 k+600 × 50
1/jωC1+R1+
2
10
VREF = 2.1 V
25 kΩ
25 kΩ
600 Ω
Figure 8
11. Two IC use
Figure 9 shows the application circuit example when two ICs are used :
Power supply
2 200 µF
4.7 kΩ
28 dB
2
28 dB
15
Out(RR)
Standby
2.2 kΩ
Mute
22 µF
47 µF
In(RR)
In(FR)
In(RL)
In(FL)
S-GND
1 µF
1 µF
1 µF
1 µF
0.022 µF
In(FL)
47 kΩ
4.7 kΩ
4.7 kΩ
4.7 kΩ
Figure 9
0.1 µF 0.1 µF
2.2 Ω 2.2 Ω
Out(FR)
0.1 µF 0.1 µF
2.2 Ω 2.2 Ω
Out(RL)
0.1 µF 0.1 µF
2.2 Ω 2.2 Ω
Out(FL)
0.1 µF 0.1 µF
2.2 Ω 2.2 Ω
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AN7196Z.PDF ] | |
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