G569C, G569C D471, G569C D471 Selling Leads, Datasheet
MFG:GMT Package Cooled:SMD48 D/C:2001
G569C, G569C D471, G569C D471 Datasheet download
Part Number: G569C
MFG: GMT
Package Cooled: SMD48
D/C: 2001
G569C, G569C D471, G569C D471
- Table of contents:
Info of G569C
Info of G569C D471
Info of G569C D471
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About G5645
PDF/DataSheet Download
Datasheet: G5645
File Size: 151784 KB
Manufacturer: HAMAMATSU [Hamamatsu Corporation]
Download : Click here to Download
About G5645
PDF/DataSheet Download
Datasheet: G5645
File Size: 151784 KB
Manufacturer: HAMAMATSU [Hamamatsu Corporation]
Download : Click here to Download
About G5645
PDF/DataSheet Download
Datasheet: G5645
File Size: 151784 KB
Manufacturer: HAMAMATSU [Hamamatsu Corporation]
Download : Click here to Download
G569C General Description
The G569C is a single chip solution for the various functions relating to laser diode operation in a CD-RW drive. The G569C integrates nine functional blocks in one chip. It has five voltage-to-current converters, one current-to-voltage converters which is called FSA, one OP-AMP, one eight-channels D/A converter, and one voltage subtracter with output clamping capability called Dalpha.
Three of the five V-to-I converters provide the laser diode currents for Read, Write, and Erase operations, respectively; another one of the V-I converters provides the Cagain current; and the other one provides Deltap current which can selectively shunt a certain amount of laser diode current for write operation. For the Write and Erase operations, the voltage to current conversion ratio can be adjusted using an external or internal DAC resistor array. The FSA circuit performs integration on the output current of an external photo diode, and sample-and-hold the peak voltage. It is used to monitor the laser diode power. The internal eight-channel D/A converter is used to provide the input voltage for above functional blocks.
The G569C is available in a 48-pin SSOP surface-mount package.
G569C Maximum Ratings
VCC to GND................ -0.3V to +6V
Dalpha to GND................ -3V to +6V
All other pin to GND.......... -0.3V to +6V
ESD protetion (human body model)......2000V
Continuous power dissipation (TA=70),
derate .7mW/ about 70)......... 695mW
Operating Temperature Range....-10 to +100
Junction Temperature.............. +150
Storage temperature Range......-65 to +165
Reflow Temperature (soldering, 10sec).....+260
Dalpha to GND................ -3V to +6V
All other pin to GND.......... -0.3V to +6V
ESD protetion (human body model)......2000V
Continuous power dissipation (TA=70),
derate .7mW/ about 70)......... 695mW
Operating Temperature Range....-10 to +100
Junction Temperature.............. +150
Storage temperature Range......-65 to +165
Reflow Temperature (soldering, 10sec).....+260
G569C Features
·Single +5V supply
·Laser diode read current driver
·Laser diode write current driver
·Laser diode Erase current driver
·Deltap circuit to control write current
·FSA circuit to integrate photo diode current
·Cagain circuit to convert Vcagain into current
·Dalpha circuit to perform voltage subtraction and limiting
·3-wire interface to control internal DAC
·A build-in OP-AMP
·48-pin SSOP package
·Laser diode read current driver
·Laser diode write current driver
·Laser diode Erase current driver
·Deltap circuit to control write current
·FSA circuit to integrate photo diode current
·Cagain circuit to convert Vcagain into current
·Dalpha circuit to perform voltage subtraction and limiting
·3-wire interface to control internal DAC
·A build-in OP-AMP
·48-pin SSOP package
G569C Typical Application
·CD-RW Drive
G569C Connection Diagram
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