tda7315nd STMicroelectronics, tda7315nd Datasheet

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tda7315nd

Manufacturer Part Number
tda7315nd
Description
Digital Controlled Audio Processor
Manufacturer
STMicroelectronics
Datasheet
DESCRIPTION
The TDA7315 is a volume, tone (bass and treble)
balance (Left/Right) processor for quality audio appli-
cations in car radio and Hi-Fi systems.
Control is accomplished by serial bus microprocessor
interface.
The AC signal settingis obtainedby resistor networks
BLOCK DIAGRAM
July 1998
- INDEPENDENT SPEAKERS CONTROL
- INDEPENDENT MUTE FUNCTION
RIAL BUS
1 STEREO INPUT
LOUDNESS FUNCTION
VOLUME CONTROL IN 1.25dB STEPS
TREBLE AND BASS CONTROL
TWO SPEAKERS ATTENUATORS:
ALL FUNCTIONS PROGRAMMABLE VIA SE-
IN 1.25dB STEPS
DIGITAL CONTROLLED AUDIO PROCESSOR
and switches combined with operational amplifi-
ers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are ob-
tained.
ORDERING NUMBER: TDA7315 (DIP 20)
SO20
TDA7315D (SO 20)
TDA7315
DIP 20
1/12

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tda7315nd Summary of contents

Page 1

DIGITAL CONTROLLED AUDIO PROCESSOR 1 STEREO INPUT LOUDNESS FUNCTION VOLUME CONTROL IN 1.25dB STEPS TREBLE AND BASS CONTROL TWO SPEAKERS ATTENUATORS: - INDEPENDENT SPEAKERS CONTROL IN 1.25dB STEPS - INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SE- RIAL BUS DESCRIPTION ...

Page 2

TDA7315 PIN CONNECTION (Top view) THERMAL DATA Symbol Parameter R Thermal Resistance Junction-pins th j-pins ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Operating Supply Voltage S T Operating Ambient Temperature amb T Storage Temperature Range stg QUICK REFERENCE DATA Symbol Parameter ...

Page 3

TEST CIRCUIT ELECTRICAL CHARACTERISTICS (refer to the test circuit T 600 , all controls flat ( 1KHz unless otherwise specified) Symbol Parameter SUPPLY V Supply Voltage S I Supply Current S SVR Ripple Rejection VOLUME CONTROL ...

Page 4

TDA7315 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter TREBLE CONTROL (1) Gt Control Range T Step Resolution STEP AUDIO OUTPUTS V Clipping Level OCL R Output Load Resistance L C Output Load Capacitance L R Output resistance OUT V DC Voltage Level ...

Page 5

Figure 3: Loudness versus External Capacitors LOUDNESS Volume = -40dB All other control flat 220nF, 100nF, 33nF, 10nF, Open, Shorter to Vref loud Figure 5: Signal to Noise Ratio ...

Page 6

TDA7315 Figure 9: Channel Separation (L R) vs. Frequency Figure 11: Output Clipping Level vs. Supply Voltage Figure 13: Supply Current vs. Temperature 6/12 Figure 10: Supply Voltage Rejection vs. Frequency Figure 12: Quiescent Current vs. Supply Voltage Figure 14: ...

Page 7

Figure 15: Typical Tone Response (with the ext. components indicated in the test circuit) TDA7315 ADDRESS MSB first byte LSB MSB ACK ACK = Acknowledge S = Start P = Stop ...

Page 8

TDA7315 SOFTWARE SPECIFICATION (continued) DATA BYTES (detailed description) Volume MSB For example a volume of -45dB ...

Page 9

Loudness MSB don‘t care For examples Loudness Off can be programmed by the following 8 bit string Bass and Treble ...

Page 10

TDA7315 SO20 PACKAGE MECHANICAL DATA mm DIM. MIN. TYP. A 2.35 A1 0.1 B 0.33 C 0.23 D 12.6 E 7 0. 10/12 MAX. MIN. 2.65 0.093 0.3 ...

Page 11

DIP20 PACKAGE MECHANICAL DATA mm DIM. MIN. TYP. a1 0.254 B 1.39 b 0. 8.5 e 2.54 e3 22. 3.3 Z inch MAX. MIN. TYP. 0.010 1.65 0.055 0.018 0.010 25.4 0.335 0.100 ...

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... STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics 1998 STMicroelectronics – ...

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