參數(shù)資料
型號: EL6836CL
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)動器
文件頁數(shù): 1/2頁
文件大?。?/td> 135K
代理商: EL6836CL
1
FN7351
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
EL6836
Dual 4-Channel Driver with Oscillator
The EL6836 is a high performance,
dual output, laser driver for writeable
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 WEN2B,
WEN3B, and WEN4B. The oscillator is enabled when OSEN
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.
WEN2B, WEN3B, and WEN4B are CMOS input pins with a
1.68V threshold. Output write current pulses are enabled
when a low is applied to the WEN2B, WEN3B, or WEN4B
pin. The write current will flow to the selected output. When
SEL1 is high I
OUT1
is selected. WENRB enables read and
oscillator current when low.
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 ENAs for power savings
Applications
Super combo drives
DVD drives
Pinout
EL6836
(32-PIN LPP)
TOP VIEW
Ordering Information
PART
NUMBER
TEMP. RANGE
PACKAGE
PKG. DWG. #
EL6836CL
0°C to +70°C
32-Pin LPP
MDP0046
25
24
23
21
20
19
18
3
3
3
2
1
O
1
G
1
S
1
E
2
3
4
5
6
7
8
THERMAL PAD
GND
WENRB
NC
WEN2B
NC
WEN3B
NC
VDDN
IOUT1
IOUT1
GND
VDDN
VDDN
IOUT2
R
I
I
I
9
1
R
2
1
R
2
WEN4B
I
G
1
G
2
V
1
RFREQ2
17 IOUT2
22 GND
Data Sheet
July 1, 2003
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