Details, datasheet, quote on part number: TDA7448
PartTDA7448
CategoryMultimedia => Audio
Description6 Channels Volume Controller
CompanyST Microelectronics, Inc.
DatasheetDownload TDA7448 datasheet
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Features, Applications

6 CHANNEL INPUTS 6 CHANNEL OUTPUTS VOLUME ATTENUATION RANGE TO -79dB VOLUME CONTROL IN 1.0dB STEPS 6 CHANNEL INDEPENDENT CONTROL ALL FUNCTION ARE PROGRAMMABLE VIA SERIAL BUS

DESCRIPTIO The a 6 channel volume controller for quality audio applications in Multi-Channels Audio Systems Thanks to the used BIPOLAR/CMOS Technology, BLOCK DIAGRAM

17 50K GND CREF 20 VS SUPPLY 1 I2C BUS DECODER 9 12 SCL SDA ADDR 16 VOLUME OUT6 5 VOLUME OUT5 15 VOLUME OUT4 6 VOLUME OUT3 14 VOLUME OUT2 7 VOLUME

This is preliminary information on a new product now in development. Details are subject to change without notice.

Symbol VS Tamb Tstg Operating Supply Voltage Operating Ambient Temperature Storage Temperature Range Parameter Value to 150 Unit V C

Symbol Rth j-pin Parameter thermal Resistance junction-pins Value 150 Unit C/W

Symbol VS VCL THD S/N SC Supply Voltage Max Input Signal Handling Total Harmonic Distortion f =1KHz Signal to Noise Ratio Vout = 1Vrms Channel Separation = 1KHz Volume Control (1dB step) Mute Attenuation -79 90 Parameter Min. Typ. 9 Max. 10 Unit V Vrms % dB

ELECTRICAL CHARACTERISTCS (refer to the test circuit Tamb = 600, unless otherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
VS IS SVR Supply Voltage Supply Current Ripple Rejection mA dB

RIN VCL SIN Input Resistance Clipping Level Input Separation THD = 0.3% The selected input is grounded through a 2.2 capacitor K Vrms dB

CRANGE AVMAX ASTEP EA Control Range Max. Attenuation Step Resolution Attenuation Set Error -79dB ET Tracking Error to -79dB VDC Amute DC Step Mute Attenuation adyacent attenuation steps mV db

VCLIP RL VDC Clipping Level Output Load Resistance DC Voltage Level THD Vrms K V

ENO S/N SC THD Output Noise Signal to Noise Ratio Channel Separation left/Right Distortion to 20KHz All gains = 0dB, Flat All gains dB %

VIl VIH IIN VO Input Low Voltage Input High Voltage Input Current Output Voltage SDA Achnowledge VIN A V


 

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