(ZL40511 / ZL40515) Dual Output DVD and CD 4 Channel Laser Diode Drivers

www.DataSheet4U.com ZL40511/15 Dual Output DVD and CD 4 Channel Laser Diode Drivers Data Sheet Features • • • • • • • • • • • • Single 5 V supply (±10%) 150 mA low-noise read channel with 100 x current gain Three 500 mA write channels with 240 x gain Combined channel output 700 mA Dual output for DVD/CD laser Rise and fall times 1 ns typical Oscillator, 500 MHz, 100 mA with external resistor control of frequency and amplitude Power Up/Down control CMOS control signals > 2 kV ESD Low Rth QFN package Contact Zarlink for available Custom Gain and Input Impedance options ZL40511LDE ZL40511LDF ZL40511LDG ZL40515LDE ZL40515LDF ZL40515LDG August 2006 Ordering Information 24 Pin QFN Tubes, Bake & Drypack 24 Pin QFN Tape & Reel 24 Pin QFN Trays, Bake & Drypack 24 Pin QFN Tubes, Bake & Drypack 24 Pin QFN Tape & Reel 24 Pin QFN Trays, Bake & Drypack -40°C to +85°C Applications • • • • • • • DVD±RW/RAM DVD±R CD-RW CD-R Write optical drives Laser Diode current switch Supports double density DVD 19 PWR_UP 20 INR GND 21 IN2 VCC_A GND 22 IN3 OUTA 18 17 GND 22 IN4 GND 16 OUTB 24 1 2 3 4 5 6 7 8 GND_IN /EN2 N/C /EN3 GND /EN4 N/C VCC_IN OSCEN GND VCC_B 15 14 RFA 9 10 RFB RSA 11 12 RSB SELA 13 Figure 1 - Functional Block Diagram 1 Zarlink Semiconductor Inc. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2004-2006, Zarlink Semiconductor Inc. All Rights Reserved. ZL40511/15 Data Sheet 24 23 22 21 20 PWR_UP 19 18 17 16 15 14 13 GND_IN INR IN4 IN3 IN2 /EN2 N/C /EN3 GND /EN4 N/C 1 2 3 4 5 6 7 8 9 10 11 12 VCC_A OUTA GND OUTB VCC_B SELA ZL40511 VCC_IN OSCEN RSA Figure 2 - Pinout of 4x4 mm 24 pin QFN (top view) Description The ZL40511/15 are high performance laser drivers capable of driving two separate cathode grounded laser diodes (e.g., 650 nm and 780 nm laser diodes). The ZL40511/15 contain a 150 mA low-noise read channel (ChR), and three 500 mA write channels (Ch2, Ch3 and Ch4). The read channel amplifies the positive current supplied at its reference input, INR, by a fixed factor of 100. Write channels amplify the positive currents supplied at its reference inputs IN2, IN3, and IN4 by a fixed factor of 240. An on-chip RF oscillator is provided for the reduction of laser mode hopping noise. The ZL40511 offers higher tolerance performance. 2 Zarlink Semiconductor Inc. RSB RFA RFB ZL40511/15 Table of Contents Data Sheet 1.0 Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Read and Write Channel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 On-chip RF Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.3 Thermal Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.4 Electrical and Optical Pulse Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.5 Specified Electrical Performance with 15 mm Interconnect and Zarlink ZLE40511/15 Evaluation Board. . 7 1.6 Application Layout Guide Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.7 ZLE40511 Interconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.0 Application Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.0 Evaluation Boards From Zarlink Semiconductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.0 Optical Pulse Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.0 Pin List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.0 Characteristic Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.0 I/O Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 8.0 Timing Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 9.0 Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 10.0 Example Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 10.1 Write Waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 10.2 Oscillator Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3 Zarlink Semiconductor Inc. ZL40511/15 List of Figures Data Sheet Figure 1 - Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2 - Pinout of 4x4 mm 24 pin QFN (top view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Figure 2 - Pulse Response Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3 - ZLE40511 Application Board Electrical Interconnect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 4 - Application Schematic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 5 - Typical Optical Eye Diagram Response* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 6 - Write Channel 2, 3 and 4 IP/OP Transfer Characteristic/Temp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 7 - Read Channel IP/OP Transfer Characteristic/Temp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 8 - Write Channel 2, 3 or 4 IP/OP Transfer Characteristic/Vcc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 9 - Write Channel 2, 3 or 4 IP/OP Best Fit Line% Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 10 - Write Channel 2, 3 or 4 ∆ lout% Variation with Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 11 - Write Channel 2, 3 or 4 ∆ lout% Variation with Vcc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 12 - Oscillator Frequency/RF Vcc = 5 V, Temp = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 13 - losc Out/Frequency/ RS = 1 K, 7.5 K, 11 K, Vcc = 5 V, Temp = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 14 - losc Amplitude mA pk-pk/RSA or RSB Vcc = 5 V, Temp = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 15 - losc/Frequency RS = 7.5 K, Vcc = 5 V, Temp = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 16 - ∆ Freq % Variation with Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 17 - Oscillator Noise Spectral Density Vcc = 5 V, Temp = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 18 - CMOS/LVTTL Input (PWR_UP, OSCEN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 19 - Oscillator Resistors (RF, RS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 20 - Read Current Input (INR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 21 - Output (OUTA, OUTB). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 22 - Write Current Input (IN2, IN3, IN4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 23 - LVDS Input (EN2, /EN2), (EN3, /EN3), (EN4, /EN4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 24 - Timing of Read or Write Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 25 - Output Waveform Showing Addition of Read and Write Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 26 - Example of Write Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Figure 27 - Example of Oscillator Waveform Superimposed on the Read Waveform . . . . . . . . . . . . . . . . . . . . . . 28 4 Zarlink Semiconductor Inc. ZL40511/15 1.0 1.1 Data Sheet Application Notes Read and Write Channel Operation The read channel is activated by applying a 'High' signal to the PWR_UP pin. In this mode, the fast write channels can be enabled by applying a 'Low' si