Datasheet > CXA2702GA

CXA2702GA

更新时间： 2024-09-24 04:13:15

品牌	Logo	应用领域
索尼 - SONY		光电 DVD
页数	文件大小	规格书
2页	51K
描述
Optical Pickup Chipset with Photodetector ICs Supports High-Speed Writing to CD and DVD

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CXA2702GA 技术参数

生命周期：	Active	Reach Compliance Code：	unknown
风险等级：	5.63	Base Number Matches：	1

CXA2702GA 数据手册

Optical Pickup Chipset with Photodetector ICs

Supports High-Speed Writing to CD and DVD

CXA2702GA/CXA2716GA/CXA2701GA

Although it has only been a year since Sony released

CXA2 7 0 2 GA/ CXA2 7 1 6 GA

the CXA2676GA and CXA2677GA* for DVD ×8-speed

RF/S e rvo P DICs

Supports high-speed CD/DVD write operations

(CD-R: ×52-speed, DVD-R: ×16-speed)

WPP1 (B+C) and WPP2 (A+D) outputs, which are

optimal for DVD address pit detection

Variable limiter function

CXA2702GA: Eight-division photodiode

CXA2716GA: Twelve-division photodiode

18-pin LGA COB small package

recording, DVD recording speed has already reached

×16.

Sony’s newly-developed CXA2701GA and CXA2702GA/

CXA2716GA optical pickup photodetector ICs (PDICs)

support this ×16 record speed.

: See CX-News, Volume 32, for details on the CXA2676GA and CXA2677GA.

CXA2 7 0 1 GA

La s e r Fro n t Mo n it o r P DIC

Differential output

Two-channel structure (Vin1, Vin2)

12-pin LGA COB small package

age externally so that applications can set

the limiter voltage to provide optimal

pickup performance. Note that although

the CXA2702GA includes a built-in

8-division photodiode that supports the

same differential push-pull method as the

earlier product (CXA2677GA), Sony has

also added to the product lineup the

CXA2716GA, which includes a built-in

12-division photodiode that supports the

differential astigmatism method. Both the

CXA2702GA and CXA2716GA feature

the extremely fast main output settling

time (for a 1 V amplitude) of 6 ns.

Support for Lead-Free

Mounting

CXA2702GA/CXA2716GA

The CXA2702GA is a photodetector IC

(PDIC) that was developed as the photo-

detector for optical pickups used in

DVD R/RW recording drives. Like the

earlier ×8-speed CXA2677GA, it provides

the WPP1 and WPP2 signals that are

optimal for address pit signal detection.

In increasing the recording speed to ×16,

Sony added a 3× gain switching function

to WPP1 and WPP2. The new IC thus has

an additional 2 bits of control compared

to the earlier gain switching system. The

CXA2702GA also now provides an input

pin that can control the output limiter volt-

Since the chip on board (COB) package

adopted for these ICs has excellent resis-

tance to heat, these ICs support mounting

with lead-free solder. They allow two-pass

reflow mounting with a peak temperature

of 250°C.

Note: Since the thermal resistance is strongly

influenced by the usage environment, verify the

details of the specifications in advance, or contact

your Sony representative for consultation.

CXA2701GA

Like the earlier ×8-speed CXA2676GA,

the CXA2701GA adopts a two-channel

structure to allow the CD laser and the

DVD laser power levels to be set individu-

ally. However, the output was changed to

the differential type in this new product.

This was because the output at the read

power became even smaller due to low-

ering the gain of the first stage I-V ampli-

fier (transimpedance amplifier) to 1/√2 to

support ×16-speed laser diodes. Switch-

ing to a differential amplifier improves the

signal-to-noise ratio by √2 and also allows

the common mode noise in the transmis-

sion system to be cancelled.

Our achievement of ×16-speed

DVD recording required pushing

our circuit technologies to the limit

to get the utmost performance

from Sony’s process technolo-

gies. The two of us on this devel-

opment team had to come up with

a lot of mutual support and en-

couragement during this design

effort. We are probably not the

only ones who are hoping that this

achievement marks the end of the

competition for ever higher

speeds.

中文翻译

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与CXA2702GA相关器件

型号	品牌	获取价格	描述	数据表
CXA2716GA	SONY	获取价格	Optical Pickup Chipset with Photodetector ICs Supports High-Speed Writing to CD and DVD
CXA2726GA	SONY	获取价格	PDIC for DVD+-RW and RAM
CXA2765ER	SONY	获取价格	5-channel 3-LD Driver for Optical Disk Drive
CXA3001N	SONY	获取价格	RX Gain Control Amplifier
CXA3002AN	ETC	获取价格	Application Specific Amplifier
CXA3002N	SONY	获取价格	RX Gain Control Amplifier
CXA3003BR-T6	ETC	获取价格	RF/Baseband Circuit
CXA3003R	SONY	获取价格	Baseband analog processing IC for dual-mode CDMA/FM cellular phone
CXA3008N-1	SONY	获取价格	L-BAND DOWN CONVERTER IC
CXA3008N-1/-2	ETC	获取价格	L-band Down Converter IC

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