參數(shù)資料
型號(hào)： EL6838
廠商： Intersil Corporation
英文描述： Dual 4-Channel Driver with Oscillator
中文描述： 雙4通道的振蕩器驅(qū)動(dòng)器
文件頁(yè)數(shù)： 1/2頁(yè)
文件大小： 115K
代理商： EL6838
1
FN7228
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
PRELIMINARY
EL6838
Dual 4-Channel Driver with Oscillator
The EL6838 is a high performance,
dual output, laser driver for writeable
‘super-combo’ CD - DVD drives. The
ENA pin enables the chip, while the SEL1 pin selects the
I
OUT
pin. Various waveforms can be generated where the
amplitude is determined by the currents flowing into I
INR
,
I
IN2
, I
IN3
, and I
IN4
. The timing is determined by the signals
at OUTEN2, OUTEN3, and OUTEN4. The oscillator is
enabled when OSCEN is high. The amplified I
INR
current of
the selected channel is enabled when the ENA pin is high.
The total output current is the sum of the read current, the
enabled write currents, and the oscillator current when
enabled.
Usually a voltage DAC will drive a resistor that is in series
with the I
INR
, I
IN2
, I
IN3
, and I
IN4
input. The resistor allows
the user to optimize the current gain for each channel.
Output write current pulses are enabled when a low is
applied to the OUTEN2, OUTEN3, or OUTEN4 pin. The
write current will flow to the selected output. When SEL1 is
high I
OUT1
is selected. OUTENR enables read and oscillator
current.
The R
F
oscillators frequency is determined by R
FREQ1
or
R
FREQ2
, and its amplitude by R
AMP1
or R
AMP2
.
Features
Two channels for CD or DVD
Voltage-controlled output current source requiring one
external set resistor per channel
Rise time = 0.8ns
Fall time = 0.8ns
Channel 2 to 250mA max
Channel 3 to 150mA max
Channel 4 to 100mA max
On chip oscillator with frequency and amplitude control by
use of external resistors to ground
Oscillator frequency to 600MHz
Oscillator amplitude to 100mA
P-P
Single +5V supply (±10%)
Chip Enables for power savings
Applications
Super Combo drives
Pinout
EL6838
(24-PIN LPP)
TOP VIEW
Ordering Information
PART
NUMBER
TEMP. RANGE
PACKAGE
PKG. DWG #
EL6838CL
0°C to +70°C
24-Pin LPP
MDP0046
19
18
17
16
15
14
13
2
2
2
2
2
8
9
1
S
1
E
1
G
1
2
3
4
5
6
7
THERMAL
PAD
IIN4
RFREQ1
RFREQ2
GND
OUTENR
OUTEN2
OUTEN3
VDDN
IOUT1
GND
RAMP1
RAMP2
VDDN
IOUT2
I
I
I
G
V
O
O
PINOUT NOT FINALIZED
Data Sheet
June 30, 2003
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EL6838CL 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual 4-Channel Driver with Oscillator
EL6839 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual 4-Channel Driver with Oscillator and LVDS
EL6839CL 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual 4-Channel Driver with Oscillator and LVDS
EL6839CL-T13 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual 4-Channel Driver with Oscillator and LVDS
EL6839CL-T7 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual 4-Channel Driver with Oscillator and LVDS
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