参数资料
型号: ACS8509
元件分类: 数字传输电路
英文描述: ATM/SONET/SDH SUPPORT CIRCUIT, PQFP100
封装: LQFP-100
文件页数: 41/68页
文件大小: 703K
代理商: ACS8509
ADVANCED COMMUNICATIONS
FINAL
DATASHEET
Revision 2.00/January 2006 Semtech Corp.
Page 46
www.semtech.com
ACS8509 SETS
Notes: (i) Assuming a differential input voltage of at least 100 mV.
(ii) With 50
load on each pin to VDD -2 V, i.e. 82 to GND and 130 to VDD.
Table 19 DC Characteristics: TTL Input Port with Internal Pull-up
Across all operating conditions, unless otherwise stated
Parameter
Symbol
Minimum
Typical
Maximum
Units
VIN High
VIH
2-
-
V
VIN Low
VIL
--
0.8
V
Pull-up Resistor
PU
30
-
80
k
Input Current
IIN
-
120
Α
Table 20 DC Characteristics: TTL Input Port with Internal Pull-down
Across all operating conditions, unless otherwise stated
Parameter
Symbol
Minimum
Typical
Maximum
Units
VIN High
VIH
2.0
-
V
VIN Low
VIL
--
0.8
V
Pull-down Resistor
PD
30
-
80
k
Input Current
IIN
-
120
A
Table 21 DC Characteristics: TTL Output Port
Across all operating conditions, unless otherwise stated
Parameter
Symbol
Minimum
Typical
Maximum
Units
VOUT Low (lOL = 4 mA)
VOL
0-
0.4
V
VOUT High (lOH = 4 mA)
VOH
2.4
-
V
Drive Current
ID
--
4
mA
Table 22 DC Characteristics: PECL Output Port
Across all operating conditions, unless otherwise stated
Parameter
Symbol
Minimum
Typical
Maximum
Units
PECL Output Low Voltage (Note (ii))
VOLPECL
VDD-2.10
-
VDD-1.62
V
PECL Output High Voltage (Note (ii))
VOHPECL
VDD-1.25
-
VDD-0.88
V
PECL Output Differential Voltage (Note (i))
VODPECL
580
-
900
mV
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