ICS87946-01 Datasheet, PDF (5/13 Pages) Integrated Circuit Systems – LVPECL-TO-LVCMOS/LVTTL CLOCK GENERATOR

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS87946-01
LOW SKEW ÷1, ÷2
LVPECL-TO-LVCMOS/LVTTL CLOCK GENERATOR
TABLE
4D.
POWER
SUPPLY
DC
CHARACTERISTICS,
V_DD
=
3.3V±5%,
V
DDX
=
2.5V±5%,
TA = 0°C TO 70°C
Symbol Parameter
Test Conditions Minimum Typical
V_DD
Positive Supply Voltage
*V_DDx
Output Supply Voltage
I_DD
Core Supply Current
**I_DDx
Output Supply Current
*V denotes V , V , V .
DDx
DDA DDB DDC
**I_DDx denotes I_DDA, I_DDB, I_DDC.
3.135
3.3
2.375
2.5
41
8
Maximum
3.465
2.625
Units
V
V
mA
mA
TABLE 4E. LVCMOS DC CHARACTERISTICS, V_DD = 3.3V±5%, V_DDX = 2.5V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
V
Input High Voltage
2
IH
V_IL
Input Low Voltage
-0.3
I_IH
Input
High Current
DIV_SELA, DIV_SELB,
DIV_SELC, CLK_SEL,
nMR/OE
V_DD = V_IN = 3.465V
I
IL
Input
Low Current
DIV_SELA, DIV_SELB,
DIV_SELC, CLK_SEL,
nMR/OE
V = 3.465V, V = 0V
DD
IN
-5
V + 0.3 V
DD
0.8
V
150
µA
µA
V_OH
Output High Voltage; NOTE 1
1.8
V
V
Output Low Voltage; NOTE 1
OL
0.5
V
I_OZL
Output Tristate Current Low
TBD
V
I_OZH
Output Tristate Current High
TBD
V
NOTE 1: Outputs terminated with 50Ω to V_DDx/2. See page 7, Figure 1B, 3.3V/2.5V Output Load Test Circuit.
TABLE 4F. LVPECL DC CHARACTERISTICS, V_DD = V_DDX = 3.3V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum
PCLK
I_IH
Input High Current
nPCLK
V_DD = V_IN = 3.465V
V_DD = V_IN = 3.465V
150
5
PCLK
I_IL
Input Low Current
nPCLK
V_DD = 3.465V, V_IN = 0V
V_DD = 3.465V, V_IN = 0V
-5
-150
V_PP
Peak-to-Peak Input Voltage
0.3
1
V_CMR
Common Mode Input Voltage; NOTE 1, 2
GND + 1.5
V_DD
NOTE 1: Common mode voltage is defined as V_IH.
NOTE 2: For single ended applications, the maximum input voltage for PCLK and nPCLK is V_DD + 0.3V.
Units
µA
µA
µA
µA
V
V
87946AY-01
www.icst.com/products/hiperclocks.html
5
REV. A JANUARY 2, 2002