AN7199 Просмотр технического описания (PDF) - Panasonic Corporation
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AN7199 Datasheet PDF : 17 Pages
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AN7199Z
ICs for Audio Common Use
s Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
13 1
Drive circuit
Pre-amp.
13
15
14
Drive circuit VREF = 6.3 V
15 kΩ
AN7198Z : 600 Ω
AN7199Z : 300 Ω
Description
Ch.2 output pin (−)
Ch.2 inverted-phase output pin
GND(output)
DC Voltage
6.3 V
0V
15
1
14
15
Drive circuit
Pre-amp.
Grounding pin for ch.2 output
Ch.2 output pin (+)
Ch.2 positive-phase output pin
Drive circuit VREF = 6.3 V
15 kΩ
AN7198Z : 600 Ω
AN7199Z : 300 Ω
6.3 V
s Usage Notes
1. Always attach an outside heat sink to use the chip. In addition, the outside heat sink must be fastened onto a
chassis for use.
2. Connect the cooling fin to GND potential.
3. Avoid short-circuit to VCC and short-circuit to GND, and load short-circuit. There is a danger of destruction under
a special condition.
4. The temperature protection circuit will be actuated at Tj = approx. 150°C, but it is automatically reset when the
chip temperature drops below the above set level.
5. The overvoltage protection circuit starts its operation at VCC = approx. 20 V.
6. Take into consideration the heat radiation design particularly when VCC is set high or when the load is 2 Ω.
7. When the beep sound function is not used, open the beep sound input pin (pin 10) or connect it to pin 9 with
around 0.01 µF capacitor.
8. Connect only pin 9 (ground, signal source) to the signal GND of the amplifier in the previous stage. The
characteristics such as distortion, etc. will be improved.
6
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