TDA7342 SGS-Thomson-Microelectronics, TDA7342 Datasheet
TDA7342
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TDA7342 Summary of contents
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... BALANCE AND FADER FACILITIES - INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SE- 2 RIAL I CBUS DESCRIPTION The audioprocessor TDA7342 is an upgrade of the TDA731X audioprocessor family. Due to a highly linear signal processing, using CMOS-switching techniques instead of standard November 1999 LOUDNESS ORDERING NUMBER: TDA7342 bipolar multipliers, very low distortion and very low noise are obtained ...
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... TDA7342 BLOCK DIAGRAM BOUT(L) 2/14 ...
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... OUT OUT OUT BOUT BIN BOUT BIN D94AU105A Parameter Parameter TDA7342 Value Unit 10 -55 to 150 C Value Unit 150 C/W Min. Typ. Max. Unit 6 9 10.2 V 2.1 2.6 Vrms 0.01 0.08 % 106 dB 100 dB -59 ...
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... TDA7342 ELECTRICAL CHARACTERISTICS ( 1KHz. Refer to the test circuit, unless otherwise specified.) Symbol Parameter INPUT SELECTOR R Input Resistance I V Clipping Level CL S Input Separation I R Output Load Resistance L G Minimum Input Gain I MIN G Maximum Input Gain I MAX G Step Resolution step e Input Noise ...
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... CSM MIN CSM MAX CSM MIN 1.5 (note 2) 35 3.5 Soft Mute Active 15 -8 0.5 Data Word = XXX11111 80 Adjacent Attenuation Steps d = 0.3% 2.1 2 3.5 TDA7342 Typ. Max. Unit 160 mV 100 1 2.5 3 ...
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... TDA7342 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter GENERAL V Supply Voltage CC I Supply Current CC PSRR Power Supply Rejection Ratio e Output Noise NO E Total Tracking Error t S/N Signal to Noise Ratio S Channel Separation C d Distortion BUS INPUTS V Input Low Voltage IL V Input High Voltage lN I Input Current ...
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... I C BUS INTERFACE Data transmission from microprocessor to the TDA7342 and viceversa takes place thru the 2 2 wires I C BUS interface, consisting of the two lines SDA and SCL (pull-up resistors to positive supply voltage must be externally connected). Data Validity As shown in fig. 3, the data on the SDA line must be stable during the high period of the clock ...
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... TDA7342 SOFTWARE SPECIFICATION Interface Protocol The interface protocol comprises: A start condition (s) A chip address byte,(the LSB bit determines CHIP ADDRESS MSB LSB R/W ACK ACK = Acknowledge S = Start P = Stop I = Auto Increment X = Not used MAX CLOCK SPEED 500kbits/s AUTO INCREMENT If bit I in the subaddress byte is set to ” ...
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... TDA7342 FUNCTION FUNCTION 0dB -1.25dB -2.5dB -3.75dB -5dB -6.25dB -7.5dB -8.75dB -10dB -11.25dB -12.5dB -13.75dB -15dB -16.25dB -17.5dB -18.75dB Loudness OFF (1) 9/14 ...
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... TDA7342 Mute MSB additional direct mute function is included in the Speaker Attenuators. Note 4: Bass cut for very low frequencies; should not be used at +16 and +18dB bass boost (DC gain) Speaker Attenuators ...
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... TDA7342 FUNCTION TREBLE STEP -14dB -12dB -10dB -8dB -6dB -4dB -2dB 0dB 0dB 2dB 4dB 6dB 8dB 10dB 12dB 14dB BASS STEPS -10dB -8dB -6dB -4dB -2dB 0dB ...
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... TDA7342 Volume MSB For example to select -47.81dB Volume the Data Byte is Power on RESET: All Bytes Set ...
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... B 0.30 0.37 0.45 0.012 0.015 C 0.09 0.20 0.004 D 9.00 0.354 D1 7.00 0.276 D3 5.60 0.220 e 0.80 0.031 E 9.00 0.354 E1 7.00 0.276 E3 5.60 0.220 L 0.45 0.60 0.75 0.018 0.024 L1 1.00 0.039 K (min.), 7 (max TQFP32 OUTLINE AND MAX. MECHANICAL DATA 0.063 0.006 0.057 0.018 0.008 0.030 TQFP32 16 Seatin g Plane 9 K TDA7342 0.10 mm .004 C 13/14 ...
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... TDA7342 2 Purchase Components of STMicrolectronics, conveys a license under the Philips I Rights to use these components Standard Specifications as defined by Philips. Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics ...