TDA7468D13TR STMicroelectronics, TDA7468D13TR Datasheet

IC PROCESSOR AUDIO DGTL 28-SOIC

TDA7468D13TR

Manufacturer Part Number
TDA7468D13TR
Description
IC PROCESSOR AUDIO DGTL 28-SOIC
Manufacturer
STMicroelectronics
Type
Audio Processorr
Datasheet

Specifications of TDA7468D13TR

Applications
Hi-Fi Systems
Mounting Type
Surface Mount
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-8870-2
TDA7468D13TR

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1
2
The TDA7468D is a volume tone (bass and treble)
balance (Left/Right) processor for quality audio
Figure 2. PIN CONNECTION (Top view)
April 2010
INPUT MULTIPLEXER
– 4 STEREO INPUTS
– SELECTABLE INPUT GAIN FOR OPTIMAL
ONE STEREO OUTPUT
BASS ALC
TREBLE AND BASS CONTROL IN 2.0dB
STEPS
VOLUME CONTROL IN 1.0dB STEPS
TWO SPEAKER ATTENUATORS:
– TWO INDEPENDENT SPEAKER CONTROL
– INDEPENDENT MUTE FUNCTION
ALL FUNCTION ARE PROGRAMMABLE VIA
SERIAL BUS
EXTERNALLY ADJUSTABLE SURROUND
FEATURES
ADAPTATION TO DIFFERENT SOURCES
IN 1.0dB STEPS FOR BALANCE FACILITY
DESCRIPTION
AUDIO PROCESSOR WITH BASS ALC SURROUND
TREBLE_L
BASSO_L
BASSI_L
MUX_L
OUT_L
DGND
IN1_L
IN2_L
IN3_L
IN4_L
IS_L
SCL
MIC
TWO BANDS DIGITALLY CONTROLLED
V
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D99AU1057
applications in Hi-Fi systems.
Selectable input gain is provided. Control of all the
functions is accomplished by serial bus.
The AC signal setting is obtained by resistor net-
works and switches combined with operational
amplifiers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are
obtained
Figure 1. Package
Table 1. Order Codes
28
27
26
25
24
23
22
21
20
19
18
17
16
15
TDA7468D13TR
Part Number
TDA7468D
GND
CREF
IN1_R
IN2_R
IN3_R
IN4_R
MUX_R
IS_R
TREBLE_R
BASSI_R
BASSO_R
OUT_R
ALC
SDA
SO28
TDA7468
Tape & Reel
Package
SO28
Rev. 4
1/23

Related parts for TDA7468D13TR

TDA7468D13TR Summary of contents

Page 1

... TREBLE_L 9 20 BASSI_L 10 19 BASSO_L 11 18 OUT_L 12 17 DGND 13 16 SCL 14 15 D99AU1057 TDA7468 SO28 Part Number TDA7468D TDA7468D13TR Tape & Reel GND CREF IN1_R IN2_R IN3_R IN4_R MUX_R IS_R TREBLE_R BASSI_R BASSO_R OUT_R ALC SDA Package SO28 Rev. 4 1/23 ...

Page 2

TDA7468 Figure 3. BLOCK DIAGRAM 2/23 ...

Page 3

Table 2. ABSOLUTE MAXIMUM RATINGS Symbol V Operating Supply Voltage S T Operating Ambient Temperature amb T Storage Temperature Range stg Table 3. THERMAL DATA Symbol R Thermal Resistance Junction-pins th j-pin Table 4. QUICK REFERENCE DATA Symbol V Supply ...

Page 4

TDA7468 ELECTRICAL CHARACTERISTICS (refer to the test circuit T amb specified) Symbol Parameter SUPPLY V Supply Voltage S I Supply Current S SVR Ripple Rejection INPUT STAGE R Input Resistance IN V Clipping Level CL S Input Separation IN G ...

Page 5

ELECTRICAL CHARACTERISTICS (continua) (refer to the test circuit T amb specified) Symbol Parameter BASS CONTROL Gb Control Range B Step Resolution STEP R Internal Feedback Resistance B BASS ALC CONTROL R Attack Time Resistor 1 attack1 R Attack Time Resistor ...

Page 6

TDA7468 Figure 4. TEST CIRCUIT 6/23 ...

Page 7

APPLICATION SUGGESTIONS The first and the last stages are volume control blocks. The control range -63dB (mute) with 1dB step resolution for this first one 24dB (mute) with 8dB step resolution for the last ...

Page 8

TDA7468 BUS INTERFACE Data transmission from microprocessor to the TDA7468D and vice versa takes place through the 2 wires BUS interface, consisting of the two lines SDA and SCL (pull-up resistors to positive ...

Page 9

SOFTWARE SPECIFICATION Interface Protocol The interface protocol comprises: A start condition (S) A chip address byte, containing the TDA7468D address A subaddress bytes A sequence of data (N byte + acknowledge) A stop condition (P) CHIP ADDRESS MSB LSB ...

Page 10

TDA7468 7 DATA BYTES Address = (HEX) 10001000. Table 6. FUNCTION SELECTION: First byte (subaddress) MSB ...

Page 11

Table 8. INPUT GAIN SELECTION MSB GAIN = 0 to 30dB Table 9. SURROUND MSB ...

Page 12

TDA7468 Table 10. VOLUME MSB VOLUME = 0 to-87dB Table 11. VOLUME setting 1 Target Volume (dB) Volume1 1dB step (dB) ...

Page 13

Table 11. VOLUME setting 1 (continua) Target Volume (dB) Volume1 1dB step (dB) -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 -35 -36 -37 -38 -39 -40 -41 -42 ...

Page 14

TDA7468 Table 11. VOLUME setting 1 (continua) -58 -59 -60 -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 -71 -72 -73 -74 -75 -76 -77 -78 -79 -80 -81 -82 -83 -84 -85 -86 -87 Table 12. VOLUME ...

Page 15

Table 12. VOLUME setting 2 (continua) Target Volume (dB) Volume1 1dB step (dB -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 ...

Page 16

TDA7468 Table 12. VOLUME setting 2 (continua) Target Volume (dB) Volume1 1dB step (dB) -48 -49 -50 -51 -52 -53 -54 -55 -56 -57 -58 -59 -60 -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 -71 -72 -73 ...

Page 17

Table 13. TREBLE & BASS SELECTION MSB ...

Page 18

TDA7468 Table 15. BASS ALC MSB Figure 9. BASS ALC : Threshold curve RMS Supply Voltage : 9.0V Frequency : 60Hz Bassfilter : ...

Page 19

IC1 Figure 11. PINS: IN1_L, IN1_R, IN2_L, IN2_R, IN3_L, IN3_R, IN4_L, IN4 _R, IS_L, IS_R, MIC V S 50K GND Vref Figure 12. PINS: OUT_L, OUT_R, IMUX_L, MUX_R V S 10Ω GND Figure 13. PINS: TREBLE_L, TREBLE_R V S ...

Page 20

TDA7468 9 PACKAGE MECHANICAL DATA In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK nitions and product status are available at: www.st.com. ECOPACK 20/23 ® ...

Page 21

Figure 19. SO28 Mechanical Data & Package Dimensions mm DIM. MIN. TYP. MAX. A 2.65 a1 0.1 0.3 b 0.35 0.49 b1 0.23 0.32 C 0.5 c1 45° (typ.) D 17.7 18 10.65 e 1.27 e3 16.51 F ...

Page 22

TDA7468 10 REVISION HISTORY Table 16. Revision History Date Revision January 2004 June 2004 March 2006 30-Apr-2010 22/23 1 First Issue in EDOCS DMS 2 Changed the Style-sheet in compliance to the new “Corporate Technical Pubblications Design Guide” 3 Updated ...

Page 23

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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