NJU8752 NJR Corporation, NJU8752 Datasheet
NJU8752
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NJU8752 Summary of contents
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... The NJU8752 incorporates BTL amplifier, which eliminate AC coupling capacitors, capable of driving Piezo speaker with simple external LC low-pass filters. Class D operation achieves lower power operation for Piezo speaker, thus the NJU8752 is suited for battery powered applications. ! FEATURES # Piezo Speaker Driving # 1-channel Analog Signal Input, 1-channel BTL Output ...
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... NJU8752 ! PIN DESCRIPTION No. SYMBOL TEST 1 4 MUTE 5, 10, OUT DDO 9 OUT N 11 STBY 12 TEST 2 13 COM *Pin No. 5(V ),10(V ) and 14 *Pin No. 7(V ) and 8(V DDO DDO *Pin No. 4(MUTE) and 11(STBY) must be connected I/O Power Supply: V =3. Signal Input ...
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... Short Circuit Protection The short protector, which protects the NJU8752 against high short-circuit current, turns off the output driver. After about 5 seconds from the protection, the NJU8752 returns to normal operation. The short protector functions at the following accidents ...
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... NJU8752 ! ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage Operating Temperature Storage Temperature Power Dissipation SSOP14 Note 1) All voltage are relative to “V Note 2) The LSI must be used inside of the “Absolute maximum ratings”. Otherwise, a stress may cause permanent damage to the LSI. ...
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... Figure 1. Output THD, S/N and Dynamic Range Test System 2nd-order LPF : Refer to “Typical Application Circuit”. Filters : 22Hz HPF + 20kHz LPF(AES17) (with the A-Weight filter for S/N and Dynamic-range tests) Ver.2003-05-29 2nd-order NJU8752 LC LPF NJU8752 Test Board NJU8752 NJU3555 Filter THD Measuring 20kHz Apparatus (AES17) Audio Analyzer ...
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... NJU8752 ! TYPICAL APPLICATION CIRCUIT 0 2.2 F 3.3kΩ Note 5) De-coupling capacitors must be connected between each power supply pin and GND. The capacity value should be adjusted on the application circuit and the operation temperature. It may malfunction if capacity value is small. Note 6) The power supply for V better THD ...