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ZL40518

Features: • Current-controlled Output Current source• Output Current per Channel to 250 mA• Total Output Current to 300 mA• Rise Time 1.0 ns, Fall Time 1.1 ns• On-chip RF Oscillator• External Resistor Control of Oscillator Swing and Frequency• 200 to 500 M...

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SeekIC No. : 004550996 Detail

ZL40518: Features: • Current-controlled Output Current source• Output Current per Channel to 250 mA• Total Output Current to 300 mA• Rise Time 1.0 ns, Fall Time 1.1 ns• On-chip ...

ZL40518 Data Sheet

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Part Number:
ZL40518
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Current-controlled Output Current source
• Output Current per Channel to 250 mA
• Total Output Current to 300 mA
• Rise Time 1.0 ns, Fall Time 1.1 ns
• On-chip RF Oscillator
• External Resistor Control of Oscillator Swing and Frequency
• 200 to 500 MHz Oscillator Range
• 100 mA Maximum Oscillator Swing
• Single +5 V Power Supply (±10%)
• Low-power Consumption
• Common Enable, Disable Input
• TTL/CMOS control signals
• Small SS016 Package


Application

• DVD R/RW
• CD R/RW


Pinout

Connection Diagram


Specifications

Parameters Symbol Value Unit
Supply voltage Vcc -0.5 to +6.0 V
Input voltage at INR, IN2, IN3 VIN1 -0.5 to +2.0 V
Input voltage at PWR_UP, /ENR, /EN2,/EN3, OSCEN VIN2 -0.5 to Vcc + 0.5 V
Output voltage VOUT -0.5 to Vcc - 1 V
Power dissipation PMax 0.71 to 12 W
Junction temperature TJ 150 C
Storage temperature range TStg -65 to +125 C

Note 1: RthJA 115°C/W, Tamb = 70 C
Note 2: RthJA 115°C/W, Tamb = 25°C


Description

The ZL40518 is a laser diode driver for high speed operation of a grounded laser diode. The driver consists of 3 controllable channels: a switchable, low noise, read channel and two switchable write channels. Write current pulses are enabled with the application of a low signal on the /EN pins. A summed output of all channels is available at the IOUT pin. Each channel can contribute up to 250 mA to the total output current of up to 300 mA. A otal read channel gain of 100 and write channels 2 and 3 with a gain of 250 and 150 respectively are provided between each reference current input and output.

Laser mode hopping noise during read mode can be reduced by the use of an on-chip RF oscillator. The oscillator frequency and swing can be set by two external resistors. The ZL40518 is enabled by a high signal on the OSCEN pin and the entire device can be switched off by the application of a low signal on the PWR_UP pin.




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