SA575 Philips, SA575 Datasheet

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SA575

Manufacturer Part Number
SA575
Description
Low voltage compandor
Manufacturer
Philips
Datasheet

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Product specification
Replaces data of 1997 June 28
IC17
Philips Semiconductors
SA575
Low voltage compandor
RF COMMUNICATIONS PRODUCTS
1997 Nov 07

Related parts for SA575

SA575 Summary of contents

Page 1

... RF COMMUNICATIONS PRODUCTS SA575 Low voltage compandor Product specification Replaces data of 1997 June 28 IC17 Philips Semiconductors 1997 Nov 07 ...

Page 2

... Philips Semiconductors Low voltage compandor DESCRIPTION The SA575 is a precision dual gain control circuit designed for low voltage applications. The SA575’s channel expandor, while channel 2 can be configured either for expandor, compressor, or automatic level controller (ALC) application. FEATURES Operating voltage range from ...

Page 3

... GND DC ELECTRICAL CHARACTERISTICS Typical values are Minimum and Maximum values are for the full operating temperature range: -40 to +85 C for SA575, except A SSOP package is tested at +25 C only 5V, unless otherwise stated. Both channels are tested in the Expandor mode (see Test Circuit) ...

Page 4

... Automatic Level Control (ALC) function are explained. These three circuit configurations are shown in Figures respectively. The SA575 has two channels for a complete companding system. The left channel, A, can be configured as a 1:2 Expandor while the right channel, B, can be configured as either a 2:1 Compressor, a 1:2 Expandor or an ALC ...

Page 5

... Equation 5 and Equation 6, respectively. 3.8k x 100 A ALC gain = 10k RECT 7 10k 2 REF Figure 3. Typical Expandor Configuration 5 Product specification SA575 Equation 3. 1/2 3.8k x 100 A 4V (avg) IN IN(RMS) Equation 4. = 10k necessary COMP Equation 5. (avg) Equation 6. = 10k EXP OUT 10 F SR00705 ...

Page 6

... R6 R7 30k 30k 10k 11 G 10k C13 16 3. Figure 4. Typical Compressor Configuration R7 R6 30k 30k COMP 22pF 10k 16 2 Figure 5. Typical ALC Configuration 6 Product specification SA575 C8 COMP OUT 10 F SR00706 C8 ALC OUT 10 F SR00707 ...

Page 7

... Philips Semiconductors Low voltage compandor EXP OUT 2 EXP REF Figure 6. SA575 Low Voltage Expandor/Compressor/ALC Demo Board 1997 Nov 575 – AMP – AMP 10k ...

Page 8

... 3 3.6 3 3.2 3.0 –50 –25 1997 Nov TEMPERATURE ( C) a. Unity Gain Error vs Temperature and TEMPERATURE ( Temperature and Figure 7. Temperature and V Curves CC 8 Product specification SA575 75 100 75 100 SR00709 ...

Page 9

... Figure 8. Compressor Output Frequency Response 1997 Nov 07 10dB IN 0dB IN -40dB IN 1000 10000 FREQUENCY (Hz) 9 Product specification SA575 GENERAL DIAGRAM 4 REC INPUT (20–20kHz) SUM OUTPUT 30000 SR00710 ...

Page 10

... Nov 07 (continued) 2.5dB IN 0dB IN -10dB IN 1000 10000 FREQUENCY (Hz) Figure 9. Expandor Output Frequency Response 10 Product specification SA575 INPUT GENERAL DIAGRAM (20–20kHz) 4.7 F REC OUTPUT SUM 30000 SR00711 ...

Page 11

... Low voltage compandor COMPRESSOR IN +10dB 100mV 0dB –10dB –20dB –30dB –40dB –50dB 1997 Nov 07 +5dB 0dB –5dB –10dB –15dB –20dB –25dB COMPRESSION EXPANSION Figure 10. The Companding Function 11 Product specification SA575 EXPANDOR OUT +10dB 100mV 0dB –10dB –20dB –30dB –40dB –50dB SR00712 ...

Page 12

... Philips Semiconductors Low voltage compandor SO20: plastic small outline package; 20 leads; body width 7.5 mm 1997 Nov 07 12 Product specification SA575 SOT163-1 ...

Page 13

... Philips Semiconductors Low voltage compandor SSOP20: plastic shrink small outline package; 20 leads; body width 4.4 mm 1997 Nov 07 13 Product specification SA575 SOT266-1 ...

Page 14

... This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes at any time without notice, in order to improve design and supply the best possible product. Copyright Philips Electronics North America Corporation 1997 All rights reserved. Printed in U.S.A. 14 Product specification SA575 ...

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