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參數(shù)資料
| 型號(hào)： | EL6834 |
| 英文描述： | Dual 4-Channel Driver with Oscillator & LVDS |
| 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： | 107K |
| 代理商： | EL6834 |
1
FN7238
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
EL6834
Dual 4-Channel Driver with Oscillator &
LVDS
The EL6834 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
IOUT pin. Various waveforms can be generated where the
amplitude is determined by the currents flowing into IINR,
IIN2, IIN3, and IIN4. The timing is determined by the signals
at WEN2-WEN2B, WEN3-WEN3B, and WEN4-WEN4B. The
oscillator is enabled when OSEN is high. The amplified IINR
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 IINR, IIN2, IIN3, and IIN4 input. The resistor allows
the user to optimize the current gain for each channel.
Output write current pulses are enabled when a high is
applied to the WEN2-WEN2B, WEN3-WEN3B, or WEN-
WEN4B pin. The write current will flow to the selected
output. When SEL1 is high IOUT1 is selected. WENRB
enables read and oscillator current when low.
The RF oscillators frequency is determined by RFREQ1 or
RFREQ2, and its amplitude by RAMP1 or RAMP2.
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
Internal 100
LVDS termination
Oscillator amplitude to 100mAP-P
Single +5V supply (±10%)
Chip ENAs for power savings
Applications
Super combo drives
Pinout
EL6834
(32-PIN LPP)
TOP VIEW
Ordering Information
PART
NUMBER
TEMP. RANGE
PACKAGE
PKG. DWG. #
EL6834CL
0°C to +70°C
32-Pin LPP
MDP0046
RFREQ2
GND
WENRB
WEN2
WEN2B
WEN3
WEN3B
VDDN
IOUT1
GND
RAMP1
RAMP2
VDDN
RFREQ1
II
N4
II
N3
II
N2
II
NR
O
SEN
GND
NC
SEL1
IOUT2
WEN4
WEN4B
ENA
GND
VDDQ
25
24
23
22
21
20
19
32
31
30
29
28
10
11
12
13
14
1
2
3
4
5
6
7
THERMAL
PAD
8
9
18
17
15
27
16
26
Data Sheet
July 2, 2003
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| EL6834CL | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual 4-Channel Driver with Oscillator & LVDS |
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