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ZL40514: DescriptionDual Output DVD and CD 4 Channel Laser Diode Drivers; File Size1MB，30 Pages; ManufacturerZarlink Semiconductor (Microsemi); Websitehttp://www.zarlink.com/

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ZL40514 Overview

Dual Output DVD and CD 4 Channel Laser Diode Drivers

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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 R

QFN package

Contact Zarlink for available Custom Gain and

Input Impedance options

ZL40510LDE

ZL40510LDF

ZL40510LDG

ZL40514LDE

ZL40514LDF

ZL40514LDG

Ordering Information

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

PWR_UP

INR

IN2

GND

VCC_A

OUTA

IN3

IN4

GND

GND 16

OUTB

VCC_B

GND

GND_IN

EN2

/EN2

EN3

/EN3

EN4

/EN4

VCC_IN

OSCEN

RFA

RFB

9 10

RSA

RSB

SELA

11 12

Figure 1 - Functional Block Diagram

Zarlink Semiconductor Inc.

Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.

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

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

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 by applying a 'High' signal to the respective pair of write enable pins (EN2, /EN2), (EN3, /EN3) or

(EN4, /EN4). The output currents of the four channels are summed together and output as a composite signal at

either OUTA (if SELA select is 'High') or OUTB (if SELA select is 'Low'). This provides the ability to drive two

different laser diodes with just one ZL40510/14.

Voltage control of the channel reference inputs (INR, IN2, IN3 and IN4) can be achieved quite easily using an

external resistor R

ref

in series with the reference channel input to convert a given reference potential V

ref

to an input

current, I

ref

where R

is the input impedance of the respective reference channel.

1.2

On-chip RF Oscillator

An on-chip RF oscillator is enabled if OSCEN = 'High', and its output signal is added to the appropriate current

output (OUTA, if SELA select is 'High', or OUTB, if SELA select is 'Low'). The oscillator amplitude is set by an

external resistor from RSA or RSB to GND. Its frequency is set by an external resistor RFA or RFB to GND. RSA

and RFA are selected when SELA is ‘High’.

The oscillator signal is summed with the programmed Write and Read levels before amplification to the output. The

oscillator signal has zero DC level and +I_pk to –I_pk signal swing. Consequently, if the programmed DC level from

the Write and Read Channels is less than the PK level programmed for the Oscillator, the combined signal will be

clipped on the negative cycle of the signal. This will increase the harmonic content of the output signal and reduce

the pk to pk amplitude output.

1.3

Thermal Considerations

Package thermal resistance is 40°C/W under the EIA/JESD51-3 compliant PCB test board condition.

Users should ensure that the junction temperature does not exceed 150°C. Thermal resistance from junction to

case and to ambient is very much dependent on how the IC is mounted onto the board, on the PCB layout and on

any heat extraction arrangements.

Power consumption and system ambient operating temperature limits should be noted and careful thermal gradient

calculations undertaken to ensure that the junction temperature never exceeds 150°C.

Zarlink Semiconductor Inc.

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	ZL40514	ZL40510	ZL40510LDE	ZL40510_06	ZL40514LDG	ZL40514LDF	ZL40514LDE	ZL40510LDG	ZL40510LDF
Description	Dual Output DVD and CD 4 Channel Laser Diode Drivers	Dual Output DVD and CD 4 Channel Laser Diode Drivers	Dual Output DVD and CD 4 Channel Laser Diode Drivers	Dual Output DVD and CD 4 Channel Laser Diode Drivers	Dual Output DVD and CD 4 Channel Laser Diode Drivers	Dual Output DVD and CD 4 Channel Laser Diode Drivers	Dual Output DVD and CD 4 Channel Laser Diode Drivers	Dual Output DVD and CD 4 Channel Laser Diode Drivers	Dual Output DVD and CD 4 Channel Laser Diode Drivers
Maker	-	-	Zarlink Semiconductor (Microsemi)	-	Zarlink Semiconductor (Microsemi)	Zarlink Semiconductor (Microsemi)	Zarlink Semiconductor (Microsemi)	Zarlink Semiconductor (Microsemi)	Zarlink Semiconductor (Microsemi)
package instruction	-	-	VQCCN,	-	VQCCN,	VQCCN,	VQCCN,	VQCCN,	VQCCN,
Reach Compliance Code	-	-	unknow	-	unknow	unknow	unknow	unknow	unknow
Interface integrated circuit type	-	-	INTERFACE CIRCUIT	-	INTERFACE CIRCUIT	INTERFACE CIRCUIT	INTERFACE CIRCUIT	INTERFACE CIRCUIT	INTERFACE CIRCUIT
JESD-30 code	-	-	S-XQCC-N24	-	S-XQCC-N24	S-XQCC-N24	S-XQCC-N24	S-XQCC-N24	S-XQCC-N24
JESD-609 code	-	-	e0	-	e0	e0	e0	e0	e0
length	-	-	4 mm	-	4 mm	4 mm	4 mm	4 mm	4 mm
Number of functions	-	-	1	-	1	1	1	1	1
Number of terminals	-	-	24	-	24	24	24	24	24
Maximum operating temperature	-	-	85 °C	-	85 °C	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-	-	-40 °C	-	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Package body material	-	-	UNSPECIFIED	-	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
encapsulated code	-	-	VQCCN	-	VQCCN	VQCCN	VQCCN	VQCCN	VQCCN
Package shape	-	-	SQUARE	-	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE
Package form	-	-	CHIP CARRIER, VERY THIN PROFILE	-	CHIP CARRIER, VERY THIN PROFILE	CHIP CARRIER, VERY THIN PROFILE	CHIP CARRIER, VERY THIN PROFILE	CHIP CARRIER, VERY THIN PROFILE	CHIP CARRIER, VERY THIN PROFILE
Certification status	-	-	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	-	-	1 mm	-	1 mm	1 mm	1 mm	1 mm	1 mm
Maximum supply voltage	-	-	5.5 V	-	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum supply voltage	-	-	4.5 V	-	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V
Nominal supply voltage	-	-	5 V	-	5 V	5 V	5 V	5 V	5 V
surface mount	-	-	YES	-	YES	YES	YES	YES	YES
Temperature level	-	-	INDUSTRIAL	-	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	-	-	TIN LEAD	-	TIN LEAD	TIN LEAD	TIN LEAD	TIN LEAD	TIN LEAD
Terminal form	-	-	NO LEAD	-	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	-	-	0.5 mm	-	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm
Terminal location	-	-	QUAD	-	QUAD	QUAD	QUAD	QUAD	QUAD
width	-	-	4 mm	-	4 mm	4 mm	4 mm	4 mm	4 mm

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Shortcut: L0 L1 L2 L3 L4 L5 L6 L7 L8 L9 LA LB LC LD LE LF LG LH LI LJ LK LL LM LN LO LP LQ LR LS LT LU LV LW LX LY LZ M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ N0 N1 N2 N3 N4 N5 N6 N7 N8 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NX NZ O0 O1 O2 O3 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OP OQ OR OS OT OV OX OY OZ P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ Q1 Q2 Q3 Q4 Q5 Q6 Q8 Q9 QA QB QC QE QF QG QH QK QL QM QP QR QS QT QV QW QX QY R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ

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