(ZL40510 / ZL40514) Dual Output DVD and CD 4 Channel Laser Diode Drivers

www.DataSheet4U.com ZL40510/14 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 LVDS control signals > 2 kV ESD Low Rth QFN package Contact Zarlink for available Custom Gain and Input Impedance options ZL40510LDE ZL40510LDF ZL40510LDG ZL40514LDE ZL40514LDF ZL40514LDG Ordering Information 24 24 24 24 24 24 Pin Pin Pin Pin Pin Pin QFN QFN QFN QFN QFN QFN Tubes, Bake & Drypack Tape & Reel Trays, Bake & Drypack Tubes, Bake & Drypack Tape & Reel Trays, Bake & Drypack August 2006 -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 20 21 PWR_UP INR IN2 GND GND VCC_A OUTA 18 17 22 23 IN3 IN4 GND GND 16 OUTB VCC_B 15 14 24 1 2 3 4 5 6 GND GND_IN EN2 /EN2 EN3 /EN3 EN4 /EN4 VCC_IN 7 OSCEN 8 RFA RFB 9 10 RSA RSB SELA 13 11 12 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. ZL40510/14 PWR_UP Data Sheet GND_IN 24 23 22 21 INR 20 IN4 IN3 IN2 19 18 17 16 15 14 13 EN2 /EN2 EN3 /EN3 EN4 /EN4 1 2 3 4 5 6 7 8 9 10 11 12 VCC_A OUTA GND OUTB VCC_B SELA ZL40510 VCC_IN OSCEN RSA Figure 2 - Pinout of 4x4 mm 24 Pin QFN (top view) Description The ZL40510/14 are high performance laser drivers capable of driving two separate cathode grounded laser diodes (e.g., 650 nm and 780 nm laser diodes). The ZL40510/14 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 ZL40510 offers higher tolerance performance. 2 Zarlink Semiconductor Inc. RSB RFA RFB ZL40510/14 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 ZLE40510/14 Evaluation Board. . 7 1.6 Application Layout Guide Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.7 ZLE40510/14 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. ZL40510/14 List of Figures Data Sheet Figure 1 - Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2 - Pinout of 4x4 mm 24 Pin QFN (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Figure 3 - Pulse Response Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 4 - ZLE40510/14 Application Board Electrical Interconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 5 - Application Schematic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 6 - Typical Optical Eye Diagram Response* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 7 - Write Channel 2, 3 and 4 IP/OP Transfer Characteristic/Temp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 8 - Read Channel IP/OP Transfer Characteristic/Temp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 9 - Write Channel 2, 3 or 4 IP/OP Transfer Characteristic/Vcc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 10 - Write Channel 2, 3 or 4 IP/OP Best Fit Line% Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 11 - Write Channel 2, 3 or 4 ∆ lout% Variation with Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 12 - Write Channel 2, 3 or 4 ∆ lout% Variation with Vcc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 13 - Oscillator Frequency/RF Vcc = 5 V, Temp = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 14 - losc Out/Frequency/ RS = 1 K, 7.5 K, 11 K, Vcc = 5 V, Temp = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 15 - losc Amplitude mA pk-pk/RSA or RSB Vcc = 5 V, Temp = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 16 - losc/Frequency RS = 7.5 K, Vcc = 5 V, Temp = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 17 - ∆ Freq% Variation with Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 18 - Oscillator Noise Spectral Density Vcc = 5 V, Temp = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 19 - CMOS/LVTTL Input (PWR_UP, OSCEN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 20 - Oscillator Resistors (RF, RS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 21 - Read Current Input (INR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 22 - Output (OUTA, OUTB). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 23 - Write Current Input (IN2, IN3, IN4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 24 - LVDS Input (EN2, /EN2), (EN3, /EN3), (EN4, /EN4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 25 - Timing of Read or Write Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 26 - Output Waveform Showing Addition of Read and Write Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 27 - Example of Write Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Figure 28 - Example of Oscillator Waveform Superimposed on the Read Waveform . . . . . . . . . . . . . . . . . . . . . . 28 4 Zarlink Semiconductor Inc. ZL40510/14 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