SY10EL89ZCTR [MICREL]
COAXIAL CABLE DRIVER; 同轴电缆驱动器
| 型号： | SY10EL89ZCTR |
| 厂家： | 
MICREL SEMICONDUCTOR |
| 描述： | COAXIAL CABLE DRIVER |
| 文件： | 总4页 (文件大小：57K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
COAXIAL
CABLE DRIVER
SY10EL89
FEATURES
DESCRIPTION
■ 375ps propagation delay
The SY10EL89 is a differential fanout gate specifically
designed to drive coaxial cables. The device is especially
useful in Digital Video Broadcast applications. For this
application, since the system is polarity-free, each output
of the device can be used as an independent driver.
The driver boasts a voltage gain of approximately 40
and produces output swings twice as large as a standard
ECL output. When driving a coaxial cable, proper
termination is required at both ends of the line to minimize
signal loss. The 1.6V output swings allow for termination
at both ends of the cable while maintaining the required
800mV swing at the receiving end of the cable. Because
of the larger output swings, the device cannot be
terminated into the standard –2.0V. All of the DC
parameters are tested with a 50Ω to –3.0V load. The
driver accepts a standard differential ECL input and can
run off the Digital Video Broadcast standard –5.0V supply.
■ 1.6V output swings
■ Internal 75KΩ input pull-down resistors
■ Available in 8-pin SOIC package
PIN CONFIGURATION/BLOCK DIAGRAM
1
2
3
4
8
7
6
5
VCC
Q
Q
Q
Q
0
0
1
1
D
D
PIN NAMES
V
EE
Pin
Function
D
Data Inputs
Data Outputs
SOIC
TOP VIEW
Q0, Q1
Rev.: E
Amendment:/0
Issue Date: August, 1998
1
Micrel
SY10EL89
DC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = GND
TA = -40°C
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
18 23 28 18 23 28 18 23 28 18 23 28
TA = 0°C
TA = +25°C
TA = +85˚C
Symbol
IEE
Parameter
Unit
mA
V
Power Supply Current
VOH
VOL
VEE
IIH
Output HIGH Voltage(1) –1.23 –1.10 –0.98 –1.17 –1.05 –0.93 –1.13 –1.02 –0.90 –1.06 –0.96 –0.81
Output LOW Voltage(1) –2.84 –2.72 –2.58 –2.84 –2.70 –2.56 –2.84 –2.70 –2.56 –2.84 –2.67 –2.51
V
Power Supply Voltage –4.75
Input HIGH Current
—
—
–5.5 –4.75
150
—
—
–5.5 –4.75
150
—
—
–5.5 –4.75
150
—
—
–5.5
V
—
—
—
—
150
µA
NOTE:
1. VOH and VOL specified for 50Ω to –3.0V load.
AC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = GND
TA = -40°C
TA = 0°C
TA = +25°C
TA = +85˚C
Symbol
Parameter
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit
tPLH
tPHL
Propagation Delay to
Output D
200
340
480
250
340
430
260
350
440
310
400
490
ps
tskew
VPP
Within-Device Skew
—
5
—
20
—
—
5
—
20
—
—
5
—
20
—
—
5
—
20
—
ps
mV
V
Minimum Input Swing(1)
150
150
(2)
150
(2)
150
(2)
VCMR
Common Mode Range(2) (2)
—
–0.4
455
—
–0.4
455
—
–0.4
455
—
–0.4
455
tr
tf
Output Rise/Fall Times Q 205
(20% to 80%)
330
205
330
205
330
205
330
ps
NOTES:
1. Minimum input swing for which AC parameters are guaranteed. The device has a DC gain of ≈40.
2. TheCMRrangeisreferencedtothemostpositivesideofthedifferentialinputsignal. NormaloperationisobtainediftheHIGHlevelfallswithinthespecified
range and the peak-to-peak voltage lies between VPP min. and 1V. The lower end of the CMR range is dependent on VEE and is equal to VEE + 3.0V.
2
Micrel
SY10EL89
DC BLOCKING CAPACITORS
DC BLOCKING CAPACITORS
75Ω COAX
75Ω COAX
75Ω
0.1µF
75Ω
0.1µF
75Ω
75Ω
EL89
150Ω 150Ω
V
EE
Figure 1. Termination Configuration
PRODUCT ORDERING CODE
Ordering
Code
Package
Type
Operating
Range
SY10EL89ZC
Z8-1
Z8-1
Commercial
Commercial
SY10EL89ZCTR
3
Micrel
SY10EL89
8 LEAD SOIC .150" WIDE (Z8-1)
Rev. 03
MICREL-SYNERGY 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA
TEL + 1 (408) 980-9191 FAX + 1 (408) 914-7878 WEB http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or
other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.
© 2000 Micrel Incorporated
4
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