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参数资料
| 型号： | AD9665ACPZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/2页 |
| 文件大小： | 0K |
| 描述： | IC LASER DRVR 4CHAN 5.5V 32LFCSP |
| 标准包装： | 5,000 |
| 类型： | 激光二极管驱动器（CD/DVD） |
| 通道数： | 4 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 封装/外壳： | 32-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 32-LFCSP-VQ（5x5） |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
4-Channel, LVDS, Dual-Output,
Laser Diode Driver with Oscillator
AD9665
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Dual, current-controlled output current sources with 4 input
channels
TTL-selectable output
W3SET
W3DIS
W3DISN
WRITE
CHANNEL 3
Stable on-chip oscillators with independent frequency and
amplitude control
TTL- or LVDS-selectable write channel enables negative logic
Independent TTL oscillator enables positive logic
170 mA minimum output current for the read channel
510 mA minimum output current for Write Channel 1
330 mA minimum output current for Write Channel 2
165 mA minimum output current for Write Channel 3
W2SET
W2DIS
W2DISN
W1SET
W1DIS
W1DISN
RSET
WRITE
CHANNEL 2
WRITE
CHANNEL 1
READ CHANNEL
OUTPUT A
OUTPUT B
LD1
LD2
950 mA typical total output current
Typical rise time/fall time of 0.8 ns
RDIS
Low power consumption
Single 5 V power supply (±10%)
OSCEN
F ADJ1
OSCILLATOR
F ADJ2 A ADJ1 A ADJ2
INS
OUTSEL
ENABLE
APPLICATIONS
DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-RAM
supercombo drives
Magneto-optical (MO) drives
Laser diode current switching
Figure 1. 4-Channel, LVDS, Laser Driver Block Diagram
5mm × 5mm
GENERAL DESCRIPTION
The AD9665 is a laser diode driver for high performance CD-
RW and DVD recordable drives. It includes four channels for
four different optical power levels: the read channel generates a
continuous output power level, whereas Channel 1, Channel 2,
W3DISN
W3DIS*
GND
GND
W2DISN
W2DIS*
W1DISN
W1DIS*
1
2
3
4
5
6
7
8
AD9665
LFCSP
(Not to Scale)
24
23
22
21
20
19
18
17
INS
V DD
LD1
LD1
GND
LD2
LD2
V DD
and Channel 3 can be used as write channels that can be
controlled with an LVDS or TTL interface. The WxDIS and
RDIS pins are active low logic. The OSCEN pin is controlled by
an active high TTL signal. All active channels are summed at
the output where Write Channel 1 can contribute at least 325
mA output current, and Write Channel 2 and Write Channel 3
can contribute at least 250 mA and 150 mA, respectively. The
level of the output current is set by an external resistor, which
converts this voltage into a current at the WxSET pin.
An on-chip oscillator is provided to allow output current
modulation and to reduce laser-mode hopping. Four external
resistors permit the setting of two distinct values for the
frequency and swing of the oscillator. The oscillator can output
up to 100 mA p-p of current (push-pull oscillator) with a
frequency range of 200 MHz to 500 MHz.
Rev. SpD
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
*TTL ACTIVE LOW SEE TABLE 3
Figure 2. 4-Channel, LVDS, Laser Driver Pin Configuration
For more information on the AD9665, email Analog Devices, Inc.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ? 2005 Analog Devices, Inc. All rights reserved.
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相关代理商/技术参数 |
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| AD9665ACPZ-REEL7 | 功能描述:IC LASER DRVR 4CHAN 5.5V 32LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 激光驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:激光二极管驱动器 数据速率:- 通道数:4 电源电压:3.3V 电流 - 电源:- 电流 - 调制:- 电流 - 偏置:- 工作温度:0°C ~ 70°C 封装/外壳:40-TQFN 裸露焊盘 供应商设备封装:40-TQFN EP 包装:托盘 安装类型:表面贴装 |
| AD96685 | 制造商:AD 制造商全称:Analog Devices 功能描述:Ultrafast Comparators |
| AD96685_01 | 制造商:AD 制造商全称:Analog Devices 功能描述:Ultrafast Comparators |
| AD96685BH | 制造商:AD 制造商全称:Analog Devices 功能描述:Ultrafast Comparators |
| AD96685BP | 制造商:AD 制造商全称:Analog Devices 功能描述:Ultrafast Comparators |
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