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| Features * * * * * * * * * Preprogrammed for All Current DVD and CD Write Strategies Five 10-bit DACs for Controlling a Laser Power Amplifier Separate DVD and CD APC Provided On-board Bandgap Reference Timing Programmable by User Adaptive Pulse Shift Programmable End Pulses Serial Interface for Programming Device Small Die Size Enables Inclusion on OPU DVD/CD ALPC AT78C1504 Description AT78C1504 is a preprogrammed automatic device for controlling the write, read and erase pulses to a laser diode power amplifier. All of the present DVD and CD write strategies are provided in the device. Automatic power control (APC) and optimum power control (OPC) are also included. Though the device is preprogrammed to provide signal conditioning of the NRZI data stream, it is possible through a serial interface to adjust pulse timing, width and amplitude. Five DACs are provided to individually control the laser diode power amplifier. The device is particularly suited to controlling the laser diode power amplifiers from Atmel's RF Division. Packaging for inclusion on the PCBA or on the optical pickup unit (OPU) is available. Figure 1. DVD System Block Diagram DRAM Flash AT78C1502 Servo Control System Power Drivers Sled AT78C1501 ATAPI I/F Controller DBM ECC SRAM ARM7TDMI Focus Spindle AT78C1503 Read Channel Laser AT78C1504 Laser Power Controller T08XX Laser Amp AT78C1507 Read Channel Adj. AT78C1505 Pre-amp Rev. 2051A-DVD-07/02 1 Figure 2. Pin-out DTEST2 DTEST1 DTEST0 SERINT WBCLK WDATA DVDD3 WCLK DVSS3 HFON 49 LDON SRF1 SRF0 OVF 64 WR ER SVDD3 WCLK_N WCLK_P FSFILT FSIS SVDD3 SVSS3 AVSS3 RDI ERI WR1I AVDD3 WR2I WR3I VREF REXTOTC 1 48 NDT_RD NDT_ER NDT_WR1 DVDD5 DVSS5 NDT_WR2 NDT_WR3 AT78C1504 ALPC 64-lead TQFP DVDD3 DVSS3 SDATA SDEN SCLK MIRROR GAP WEG 16 33 G_L 17 32 MON_PD AVDD5 CDPD RCONR AT/SGA_OUT RSETW CDPD_GND ERASE CDLD RSETE TSETR AVSS5 NRST A_IS Table 1. DC Parameters Symbol VCC VDD ICC Note: Parameter Supply Voltage Supply Voltage Operating Current Min 3.0 4.5 Nom 3.3 5.0 Max 3.6 5.5 300 Units V V mA Note 1 Notes 1. Values listed are advance information and are likely to change as production silicon is characterized. 2 AT78C1504 2051A-DVD-07/02 WRITE READ AT78C1504 External Pin Definition P = Power or ground, B = Bidirectional, I = Digital Input, O = Digital Output AI = Analog Input, AO = Analog Output Table 1. External Pin Definition Pin # 1 2 3 4 5 6 7 8 9 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 Symbol SVDD3 WCLK_N WCLK_P FSFILT FSIS SVDD3 SVSS3 AVSS3 RDI ERI WR1I AVDD3 WR2I WR3I VREF REXTOTC RCONR AVDD5 RSETW RSETE RSETR CDPD_GND CDPD CDLD A_IS MON_PD AT/SGA_OUT AVSS5 NRST READ ERASE WRITE G_L WEG Type P AO AO AO AI P P P AO AO AO P AO AO AO AI AI P AI AI AI AI AI AO P AI AO P I I I I I I Pad Types Ana_VDD Ana_HighI Ana_HighI Ana_HighI Ana_HighI Ana_VDD Ana_GND Ana_GND Ana_HighI Ana_HighI Ana_HighI Ana_VDD Ana_HighI Ana_HighI Ana_HighI Ana_HighI Ana_HighI Ana_VDD Ana_HighI Ana_HighI Ana_HighI Ana_HighI Ana_HighI Ana_HighI Ana Ana_HighI Ana_HighI Ana_GND PIC PIC PIC PIC PIC PIC Description 3.3V Synthesizer Power PECL WCLK Negative Output PECL WCLK Positive Output Frequency Synthesizer Filter Frequency Synthesizer CP Iset Resistor 3.3V Synthesizer Power 3.3V Synthesizer Ground 3.3V Analog Ground Read Level Current DAC Output Erase Level Current DAC Output Write1 Level Current DAC Output 3.3V Analog Power Write2 Level Current DAC Output Write3 Level Current DAC Output 2.5V Output Reference Voltage External Current Setting Resistor Laser Diode Constant Current Setting R 5V Analog Power Write DACs Current Setting R Erase DACs Current Setting R Read DACs Current Setting R Ground Return for CDPD CD Photo Diode Input CD Laser Diode Output Analog Isolation - Ground Monitor Photo Diode Input Analog Test Monitor/SGA_OUT 5V Analog Ground Chip Reset Read Input from Controller Read Input from Controller Read Input from Controller Grove (High)/Land Input from Controller Write or Erase Gate Input from Controller 3 2051A-DVD-07/02 Table 1. External Pin Definition (Continued) Pin # 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Symbol GAP MIRROR SCLK SDEN SDATA DVSS3 DVDD3 NDT_WR3 NDT_WR2 DVSS5 DVDD5 NDT_WR1 NDT_ER NDT_RD HFON LDON WR ER OVF SRF0 SRF1 DVSS3 DVDD3 SERINT DTEST0 DTEST1 DTEST2 WBCLK WDATA WCLK Type I I I I B P P O O P P O O O O O O O O O O P P I O O O I I O Pad Types PIC PIC PIC PIC PB2C PP0I PP3I PO2 PO2 PP0E PP5E PO2 PO2 PO2 PO2 PO2 PO2 PO2 PO2 PO2 PO2 PP0I PP3I PIC PO2 PO2 PO2 PIC PIC PO2 Description Gap Input Mirror Input Serial Interface Clock Serial Data Enable Serial Data 3.3V Digital Ground 3.3V Digital Power Laser Diode Driver Output for Write3 Laser Diode Driver Output for Write2 5V Digital Ground 5V Digital Power Laser Diode Driver Output for Write1 Laser Diode Driver Output for Erase Laser Diode Driver Output for Read High Frequency Module Enable Laser Diode Enable Write Mode Monitor Output Erase Mode Monitor Output Overflow Interrupt to Controller I/V Gain Control Output to Pickup I/V Gain Control Output to Pickup 3.3V Digital Ground 3.3V Digital Power Servo Interrupt Digital Test Output Digital Test Output Digital Test Output Wobble Clock or Oscillator Input Write Data Input from Controller Write Channel Clock Output 4 AT78C1504 2051A-DVD-07/02 AT78C1504 Figure 3. AT78C1504 Block Diagram VREF SGA SGAOUT BCB GCB FILT_ENA SDATA SCLK SDEN NRST READ WRITE ERASE G_L WEG GAP MIRROR INDEX WDATA SERVO-INT WBCLK READ IDAC Control Logic CMODE HPON LDON WR ER PWREN SRF1P SRF2P WEGO ALPC_INT RCONR RSETR READI RSETE ERASE IDAC ERASEI WRITEI2 RSETW WRITE IDAC Pulse width control CDAPC Synthesizer WRITEI1 WRITEI3 WCHCLK-T WCHCLKP-E WCHCLKN-E NDTRD NDTER NDTWR1 PD780 LD780 NDTWR2 NDTWR3 7 8 4 4 REF DAC ATEST COMP MONPD 5 2051A-DVD-07/02 Atmel Headquarters Corporate Headquarters 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 487-2600 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 436-4314 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany TEL (49) 71-31-67-0 FAX (49) 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 TEL 1(719) 576-3300 FAX 1(719) 540-1759 Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland TEL (41) 26-426-5555 FAX (41) 26-426-5500 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France TEL (33) 2-40-18-18-18 FAX (33) 2-40-18-19-60 Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France TEL (33) 4-76-58-30-00 FAX (33) 4-76-58-34-80 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimhatsui East Kowloon Hong Kong TEL (852) 2721-9778 FAX (852) 2722-1369 ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France TEL (33) 4-42-53-60-00 FAX (33) 4-42-53-60-01 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 TEL 1(719) 576-3300 FAX 1(719) 540-1759 Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland TEL (44) 1355-803-000 FAX (44) 1355-242-743 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan TEL (81) 3-3523-3551 FAX (81) 3-3523-7581 literature@atmel.com Web Site http://www.atmel.com (c) Atmel Corporation 2002. Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in Atmel's Terms and Conditions located on the Company's web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel's products are not authorized for use as critical components in life support devices or systems. ATMEL (R) is the registered trademark of Atmel. Other terms and product names may be the trademarks of others. Printed on recycled paper. 2051A-DVD-07/02 |
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