an7195z Panasonic Corporation of North America, an7195z Datasheet
an7195z
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an7195z Summary of contents
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... 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 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- ...
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... AN7195Z Block Diagram 3 Ch.1 GND 4 Ch.1 Out ( ) Att. 2 Ch.1 Out ( ) Att. Pin Descriptions 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) Absolute Maximum Ratings Parameter * 2 Supply voltage * 3 Peak supply voltage Supply current *4 Power dissipation * 1 Operating ambient temperature * 1 Storage temperature Note All items are except for the operating ambient temperature and storage temperature ...
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... THD 4 on/off HPF-on STB THD kHz 4 120 ms 120 ms AN7195Z Unit V Min Typ Max Unit 120 250 0.22 0.5 mV[rms 0.07 0 ...
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... AN7195Z Terminal Equivalent Circuits Pin No. Equivalent circuit Drive circuit 2 Drive circuit Drive circuit 4 Drive circuit 200 400 Supply voltage pin Supply connection pin Ch.1 output pin ( ) Pre-amp. Ch.1 positive-phase output pin V 6.6 V REF ...
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... Beep sound signal input pin 15 Input impedance Ch.2 input pin Approx. Approx. Ch. 2 input signal applied pin Input impedance 30 k Ripple filter pin V CC Output current 200 A AN7195Z Description DC Voltage 2 to10 mV 13 ...
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... AN7195Z Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 13 1 Drive circuit 13 Drive circuit Drive circuit 14 Drive circuit 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. ...
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... Ambient temperature Terminal state Terminal voltage Open Low High Higher than STB 0 V Sub AN7195Z 150 Table 1 Power 0 V Standby state 1.0 V Standby state Operating state Protection Constant RF circuit current source 3.5 k 3.5 k 3.5 k 3.5 k Figure 1 ...
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... AN7195Z Technical Information (continued) [2] Application note (continued) 2. Oscillation countermeasures 1) In order to increase the oscillation allowance, connect a capacitor and a resistor in series between each output terminal and GND as shown in figure 2. 2) The use of polyester film capacitor having a little fluctuation with temperature and frequency is recommended as the 0.1 F capacitor for oscillation prevention ...
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... In such a case, insert a capacitor of approx. 0.01 F between the standby terminal and GND. 2) Mute on/off No shock noise is released. Refer to the section on the mute function Constant Protection current source circuit REF 10 k 3.5 k 3.5 k Figure 4 AN7195Z 1 3 AN7195Z Detection circuit Quick discharge circuit To muting circuit GND of input Figure 5 9 ...
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... AN7195Z Technical Information (continued) [2] Application note (continued) 8. Mute Function 1) The mute-on/off is possible by making pin 7 (the muting terminal) high or low. 2) The muting circuit is as shown in figure 6. The amplifier gain including attenuator block is given in the following equation : Original gain ...
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... Power supply 2 200 F Standby 2.2 k Mute In(RR In(FR In(RL In(FL S-GND 0.022 F In(FL 2.1 V REF 0.022 2.1 V REF 2 4.7 k 4.7 k 4.7 k 4.7 k Figure 8 AN7195Z 300 300 34 dB Figure 7 Out(RR) 0.1 F 0.1 F 2.2 Out(FR) 0.1 F 0.1 F 2.2 Out(RL) 0.1 F 0.1 F 2.2 Out(FL) 0.1 F 0.1 F 2.2 11 ...
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... AN7195Z Technical Information (continued) [2] Application note (continued) 11. Two IC use (continued) 1) Supply terminal Short-circuiting each other, insert an electrolytic capacitor of approx. 2 200 F into the supply terminals. However, if sufficient characteristics of the ripple rejection can not be obtained, use an even larger capacitor or insert a 2 200 F capacitor into each IC. ...