TDA7338D STMicroelectronics, TDA7338D Datasheet

IC DECODER STEREO SO-20

TDA7338D

Manufacturer Part Number
TDA7338D
Description
IC DECODER STEREO SO-20
Manufacturer
STMicroelectronics
Type
Audio Decoderr
Datasheet

Specifications of TDA7338D

Voltage - Supply, Digital
7.5 V ~ 10.2 V
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Applications
-
Voltage - Supply, Analog
-

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Part Number:
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1
Figure 2. reached.Block Diagram
April 2005
INTEGRATED 19KHz SC NOTCH FILTERFOR
PILOT CANCELLATION
ON CHIP FILTER FOR PILOT DETECTOR
AND PLL
ADJUSTMENT FREE VOLTAGE
CONTROLLED OSCILLATOR
AUTOMATIC PILOT DEPENDENT MONO/
STEREO SWITCHING
NOISE BLANKING WITH PROGRAMMABLE
THRESHOLD
HIGH CUT CONTROL AND STEREO BLEND
INTEGRATED HIGH PASS FILTER FOR
INTERFERENCE DETECTOR
LEVEL INPUT FOR ADDITIONAL SPIKE
DETECTION ON FIELDSTRENGHT SIGNAL
VERY HIGH SUPPRESSION OF HARMONIC
AND INTERFERENCE SIGNALS
FEATURES
2
The TDA7338 is a new concept of monolithic inte-
grated stereo decoder with noise blanking for FM
car radio applications. With the used BICMOS
technique, the 19KHz Notch Filter, the PLL Filter
and Phase Filter is realized on the chip with a
Switched Capacitor concept. Avoiding the use of
multipliers and non linear circuits a very high per-
formance in terms of noise suppression and total
harmonic distortion is
Figure 1. Package
Table 1. Order Codes
TDA7338D013TR
DESCRIPTION
Part Number
TDA7338D
STEREO DECODER
SO20
SO20 in Tape & Reel
TDA7338
Package
SO20
Rev. 9
1/12

Related parts for TDA7338D

TDA7338D Summary of contents

Page 1

... STEREO DECODER Figure 1. Package SO20 Table 1. Order Codes Part Number TDA7338D TDA7338D013TR 2 DESCRIPTION The TDA7338 is a new concept of monolithic inte- grated stereo decoder with noise blanking for FM car radio applications. With the used BICMOS technique, the 19KHz Notch Filter, the PLL Filter and Phase Filter is realized on the chip with a Switched Capacitor concept ...

Page 2

TDA7338 Table 2. Absolute Maximum Ratings Symbol V DC Supply Voltage CC I Suply Current CC T Storage Temperature stg T Operating AmbientTemperature amb Table 3. Thermal Data Symbol R Thermal resistance junction-pins th j-pins Figure 3. Block Diagram and ...

Page 3

ELECTRICAL CHARACTERISTCS Table 9V; modulation frequency: 1KHz; de-emphasis time 50µs; nominal MPX input voltage 1. 100% (75KHz deviation, f MPX 27° 4.7µF; unless otherwise ...

Page 4

TDA7338 Table 9V; modulation frequency: 1KHz; de-emphasis time 50µs; nominal MPX input voltage 1. 100% (75KHz deviation, f MPX 27° 4.7µF; unless otherwise specified) amb ...

Page 5

SCA (SUBSIDIARY COMMUNICATIONS AUTHORIZATION) α67 measured with : 81% mono signal; 9% pilot signal; fm=1KHz; 10% SCA - subcarrier (fs = 67KHz, unmodulated) 4. ACI (ADJACENT CHANNEL INTERFERENCE) α114 α190 measured with : 90% mono signal; 9% pilot signal; ...

Page 6

TDA7338 Figure 5. High Cut Control f c (KHz) 3.18 (=50µs) =3. -0.5 -0.4 -0.3 -0.2 Furthermore the conditions of the stereo separation (see fig.6) can be controlled through the signal applied to Pin 16 ...

Page 7

Noise Controlled Threshold Adjustment (ATC) The behaviour of the noise controlled threshold adjustment is shown in fig can be influenced lightly by adding a resistor in parallel to the PEAK capacitor at Pin 8 either to GND ...

Page 8

TDA7338 Table 5. Programming of the Noiseblanker PIN 1 (PROG) GND OPEN V DD Figure 8. Trigger Threshold vs. V Figure 9. Behaviour of the Field Strength Controlled Threshold Adiustment V PEAK ≈3V TRIG. THRESHOLD NOISE 8/12 Trigger Threshold LOW ...

Page 9

Figure 10. Application Diagram 68K 1) SIGNAL STRENGTH 47K 47K 1) VR PILOT_IND 100K MONO 68K 470nF 33K 10K MPX 680pF 100K VCO_OFF (FM ENABLE) 100K 330pF 1) has to be adapted to the signal strength 2) for deemphasis = ...

Page 10

TDA7338 Figure 11. SO20 Mechanical Data & Package Dimensions mm DIM. MIN. TYP. MAX. A 2.35 2.65 A1 0.10 0.30 B 0.33 0.51 C 0.23 0.32 (1) 12.60 13. 7.40 7.60 e 1.27 H 10.0 10.65 h 0.25 ...

Page 11

REVISION HISTORY Table 6. Revision History Date Revision October 2004 April 2005 8 First Issue in EDOCS 9 Changed the Style-cheet in compliance to the new “Corporate Technical Pubblications Design Guide. Deleted DIP20 Package Description of Changes TDA7338 11/12 ...

Page 12

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications 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 ...

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