tza1025

Manufacturer Part Numbertza1025
DescriptionData Amplifier And Laser Supply Circuit For Cd Audio And Video Optical Systems Adalaslc
ManufacturerNXP Semiconductors
tza1025 datasheet
 
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DATA SHEET
TZA1025
Data amplifier and laser supply
circuit for CD audio and video
optical systems (ADALASLC)
Product specification
File under Integrated Circuits, IC01
INTEGRATED CIRCUITS
1998 Oct 30

tza1025 Summary of contents

  • Page 1

    ... DATA SHEET TZA1025 Data amplifier and laser supply circuit for CD audio and video optical systems (ADALASLC) Product specification File under Integrated Circuits, IC01 INTEGRATED CIRCUITS 1998 Oct 30 ...

  • Page 2

    ... CD-A/V discs or CD-R/W discs by means of the gain select signal. The equalizer ensures an optimal performance. The TZA1025 can be adapted to a wide range of voltage output mechanisms by means of external resistors. The ALPC circuit will maintain control over the laser diode current. With an on-chip reference voltage generator, a constant and stabilized output power is ensured independent of ageing ...

  • Page 3

    ... CONDITIONS V V DD(L) o(LASER TZA1025 V/I ( GAP V DD(L) GND Fig.1 Block diagram. 3 Product specification MIN. TYP. 2.4 3 2 0.150 V 0.150 GND 9 RFFB 10 RFEQO 8 CMFB 250 kHz RGADJ 3 CFIL PWRON MBK902 TZA1025 MAX. UNIT 5 5 ...

  • Page 4

    ... The DC output level of the amplifier can be set by applying a DC voltage on the common mode feedback pin CMFB. Since the input signal is AC-coupled the RF output voltage will swing (symmetrically) around this DC level. The coupling of the TZA1025 to the signal processor (SAA7325) can be either AC or DC. When an AC-coupling 14 RGADJ is chosen (see Fig ...

  • Page 5

    ... RGADJ where: C CFIL G loop The TZA1025 has a protection circuit to prevent laser damage that can occur due to a dip of V occurs the output transistor (see Fig.4) will go into saturation making it unable to supply the required laser = 1 when no con current. Without the protection circuit the ALPC would still ...

  • Page 6

    ... In accordance with “SNW-FQ-611-E” . 1998 Oct 30 CONDITIONS 0.5 0.5 note 1 0.5 note 2 0.5 note 3 0.5 note 4 1 note 3 0.5 note 4 1 human body model; note 5 2000 machine model; note 6 250 0 6 Product specification TZA1025 MIN. MAX. UNIT +5 0.5 V DD( +2000 V +250 ...

  • Page 7

    ... PWRON = HIGH; CMFB unless otherwise amb MIN. TYP. 5.5 5 +70 100 0.05 V CMFB CMFB 0.35 V CMFB CMFB V DD 100 10 5 9.8 10 2.7 5.5 500 1200 Product specification TZA1025 MAX. UNIT 0 0. 0. ...

  • Page 8

    ... DD DD 200 +200 3 5 0.5 200 200 The output impedance will approximately double drop coming out of the ALPC output. o(LASER) Product specification TZA1025 MAX. UNIT V 0.132 0 0.2 V drop ...

  • Page 9

    ... Data amplifier and laser supply circuit for CD audio and video optical systems (ADALASLC) 12 handbook, halfpage (2) G (dB (1) Gain. (2) Delay. Definition of delay: t Fig.5 Equalizer gain and delay. 1998 Oct 30 MGR520 254 t d (ns) (1) 252 250 248 246 10 f (MHz) --------- - 360 = ---------------- - Product specification TZA1025 ...

  • Page 10

    ... Philips Semiconductors Data amplifier and laser supply circuit for CD audio and video optical systems (ADALASLC) APPLICATION INFORMATION The application for the TZA1025 (ADALASLC) with the SAA7325 (CD10LC) using a coupling capacitor of 3 shown in Fig.6. V DD(LASER) handbook, full pagewidth LD 100 nF MON V DD ...

  • Page 11

    ... Philips Semiconductors Data amplifier and laser supply circuit for CD audio and video optical systems (ADALASLC) The application for the TZA1025 (ADALASLC) with the SAA7325 (CD10LC) without a coupling capacitor is shown in Fig.7. A minimum supply voltage (V V DD(LASER) handbook, full pagewidth LD 100 nF MON ...

  • Page 12

    ... REFERENCES JEDEC EIAJ MS-012AB detail 1.0 0.7 1.05 0.25 0.25 0.4 0.6 0.039 0.028 0.041 0.01 0.01 0.016 0.024 EUROPEAN PROJECTION Product specification TZA1025 SOT108 ( 0.7 0.1 0 0.028 0.004 0.012 ISSUE DATE 95-01-23 97-05-22 ...

  • Page 13

    ... Use only a low voltage soldering iron (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds 300 C. When using a dedicated tool, all other leads can be soldered in one operation within seconds between 270 and 320 C. 13 Product specification TZA1025 ...

  • Page 14

    ... Philips customers using or selling these products for use in such applications their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. 1998 Oct 30 14 Product specification TZA1025 ...

  • Page 15

    ... Philips Semiconductors Data amplifier and laser supply circuit for CD audio and video optical systems (ADALASLC) 1998 Oct 30 NOTES 15 Product specification TZA1025 ...

  • Page 16

    Philips Semiconductors – a worldwide company Argentina: see South America Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. +61 2 9805 4455, Fax. +61 2 9805 4466 Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. +43 160 1010, ...