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PDF CXA2697ER Data sheet ( Hoja de datos )
| Número de pieza | CXA2697ER | |
| Descripción | 5-Channel 2-LD Driver For Optical Disc Drive | |
| Fabricantes | Sony Electronics | |
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CXA2697ER
5-Channel 2-LD Driver for Optical Disc Drive Preliminary
Description
The CXA2697ER is a laser driver IC corresponded
to DVD ×12 and capable of driving two high output
lasers (CD/DVD) for writable optical discs.
32 pin VQFN (Plastic)
Features
• CD write channel maximum drive current: 300mA
(VCC = 3V, VCC_LD = 4.5V, VOP = 2.5V)
• CD total maximum drive current: 370mA
(VCC = 3.3V, VCC_LD = 5V, VOP = 2.5V)
• DVD write channel maximum drive current: 270mA
(VCC = 3V, VCC_LD = 4.5V, VOP = 3V)
• DVD total maximum drive current: 360mA
(VCC = 3.3V, VCC_LD = 5V, VOP = 3V)
• Capable of generating five-value recording
waveform through control of five channels
• Rise/Fall times = 1ns
• Read Channel: ×125
• Write Channel: ×470
• Read Channel has extensive low-noise design
1.5nA/√Hz (@20MHz, ILD = 35mA, Imod = 20mAp-p)
• High frequency modulator circuit
• Frequency variable range: 200 to 600MHz
• Modulator amplitude can be set separately for CD
and DVD.
• DVD modulator amplitude switching function
• Timing input for generating recording waveform
can be adapted to both differential input (LVDS)
and single-end input (3.3V CMOS/TTL).
Absolute Maximum Ratings
• Supply voltage VCC 3.6
VCC_LD 5.5
• Storage temperature Tstg –65 to +150
• Allowable power dissipation
PD TBD
V
V
°C
mW
Operating Conditions
• Supply voltage
VCC 3 to 3.6
VCC_LD 4.5 to 5.5
• Operating temperature Topr –10 to +75
V
V
°C
Applications
CD-R, CD-RW, DVD-R, DVD-RW, DVD+R/RW,
DVD-ROM and DVD-RAM for high-speed writable
optical disc drives
Structure
Bi-CMOS IC
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
PE03819-PS
1 page  
CXA2697ER
Pin
No.
Symbol
I/O
Pin
voltage
23 IIN2
I—
24 IIN1
I—
Equivalent circuit
100
23
24 700
Description
Current setting 2.
Current setting 1.
25 VBG
O 1.26V
25
1k
300
1k
Internal reference voltage decoupling.
26 OUTENREF O 1/2VCC 26
300
500
300
Reference voltage output for current
control signal.
Connects decoupling capacitance to
ground.
–5–
5 Page 
CXA2697ER
Description of Functions
1. Logic Table
Output control
IN1/IN2 IN3 IN4 IN5
LDEN1 LDEN2 xOUTEN2 xOUTEN3 xOUTEN4 xOUTEN5 OSCEN OSCMOD LDOUT1 (DVD)
LDOUT2 (CD)
L L X X X X X X OFF
OFF
H L H H H H L L IIN1 × 125
OFF
H L L H H H L L IIN2 × 125
OFF
H L H L H H L L IIN1 × 125 + IIN3 × 470 OFF
H L H H L H L L IIN1 × 125 + IIN4 × 470 OFF
H L H H H L L L IIN1 × 125 + IIN5 × 470 OFF
H
L
H
L
L
L
L
L
IIN1 × 125 + (IIN3 +
IIN4 + IIN5) × 470
OFF
L H H H H H L L OFF
IIN1 × 125
L H L H H H L L OFF
IIN2 × 125
L H H L H H L L OFF
IIN1 × 125 + IIN3 × 470
L H H H L H L L OFF
IIN1 × 125 + IIN4 × 470
L H H H H L L L OFF
IIN1 × 125 + IIN5 × 470
L H H L L L L L OFF
IIN1 × 125 + (IIN3 +
IIN4 + IIN5) × 470
H
H
X
X
X
X
X
X OFF (INHIBIT)
OFF (INHIBIT)
Module control
LDEN1 LDEN2 xOUTEN2 xOUTEN3 xOUTEN4 xOUTEN5 OSCEN OSCMOD
LDOUT1
LDOUT2
L L X X X X X X OFF
OFF
H L X X X X L H MODOFF
OFF
H
L
X
X
X
X
H
H
MODON
(R FREQ1, RAMP1)
OFF
H
L
X
X
X
X
H
L
MODON
(R FREQ1, RAMP11)
OFF
L H X X X X L X OFF
MODOFF
L H X X X X H X OFF
MODON
(R FREQ2, RAMP2)
H
H
X
X
X
X
X
X OFF (INHIBIT)
OFF (INHIBIT)
Note: Module control does not depend on a data timing signals.
– 11 –
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet CXA2697ER.PDF ] | |
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