Overview
The AD9665ACPZ-REEL7 is a high-performance laser diode driver produced by Analog Devices Inc. This component is specifically designed for use in CD-RW and DVD recordable drives, offering four channels to manage different optical power levels. The device includes a read channel and three write channels, all of which can be controlled via LVDS or TTL interfaces. It features an on-chip oscillator to modulate the output current and reduce laser-mode hopping, enhancing the overall performance and reliability of the system.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (+VDD) | Pins 10, 11, 17, 23, 32 | - | - | 6 | V |
| Operating Temperature Range | - | -25°C | - | 85°C | - |
| Storage Temperature Range | - | -65°C | - | 150°C | - |
| Output Current - Read Channel | Output is sourcing, IIN = 2 mA | 170 | 190 | - | mA |
| Output Current - Write Channel 1 | Output is sourcing, IIN = 2 mA | 510 | 540 | - | mA |
| Output Current - Write Channel 2 | Output is sourcing, IIN = 2 mA | 330 | 360 | - | mA |
| Output Current - Write Channel 3 | Output is sourcing, IIN = 2 mA | 165 | - | - | mA |
| Oscillator Frequency | OSCEN = 1 | 280 | 315 | 340 | MHz |
| Oscillator Amplitude | OSCEN = 1 | - | 50 | - | mA p-p |
Key Features
- Four-channel laser diode driver with one read channel and three write channels.
- Control via LVDS or TTL interfaces.
- On-chip oscillator for output current modulation to reduce laser-mode hopping.
- Single 5 V power supply (±10%).
- Low power consumption and fast switching times.
- 32-Lead, Pad-Up, Lead Frame Chip Scale Package (LFCSP).
- Operating temperature range from -25°C to +85°C.
Applications
- DVD-R, DVD+R, DVD-RW, DVD+RW, and DVD-RAM supercombo drives.
- Magneto-optical (MO) drives.
- Laser diode current switching.
- OTDR laser drivers.
Q & A
- What is the primary function of the AD9665ACPZ-REEL7? The AD9665ACPZ-REEL7 is a laser diode driver designed for high-performance CD-RW and DVD recordable drives.
- How many channels does the AD9665ACPZ-REEL7 have? It has four channels: one read channel and three write channels.
- What interfaces can be used to control the AD9665ACPZ-REEL7? The device can be controlled via LVDS or TTL interfaces.
- What is the purpose of the on-chip oscillator? The on-chip oscillator is used for output current modulation to reduce laser-mode hopping.
- What is the typical operating voltage of the AD9665ACPZ-REEL7? The device operates on a single 5 V power supply (±10%).
- What is the package type of the AD9665ACPZ-REEL7? It comes in a 32-Lead, Pad-Up, Lead Frame Chip Scale Package (LFCSP).
- What are the typical applications of the AD9665ACPZ-REEL7? It is used in DVD-R, DVD+R, DVD-RW, DVD+RW, and DVD-RAM supercombo drives, magneto-optical (MO) drives, laser diode current switching, and OTDR laser drivers.
- What is the operating temperature range of the AD9665ACPZ-REEL7? The operating temperature range is from -25°C to +85°C.
- How is the output current of each channel controlled? The output current of each channel is controlled by external resistors connected to the WxSET pins.
- What are the key specifications for the output currents of the channels? The read channel can source up to 170 mA, Write Channel 1 up to 510 mA, Write Channel 2 up to 330 mA, and Write Channel 3 up to 165 mA.
