ICS8S89874I Datasheet PDF - IDT
| Part Number | ICS8S89874I | |
| Description | 1:2 Differential-to-LVPECL Buffer/Divider | |
| Manufacturers | IDT | |
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There is a preview and ICS8S89874I download ( pdf file ) link at the bottom of this page. Total 19 Pages | ||
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1:2 Differential-to-LVPECL Buffer/Divider
ICS8S89874I
DATA SHEET
General Description
The ICS8S89874I is a high speed 1:2 Differential-to- LVPECL Buffer/
Divider. The ICS8S89874I has a selectable ÷1, ÷2, ÷4, ÷8, ÷16
output divider, which allows the device to be used as either a 1:2
fanout buffer or frequency divider. The clock input has internal
termination resistors, allowing it to interface with several differential
signal types while minimizing the number of required external
components. The device is packaged in a small, 3mm x 3mm
VFQFN package, making it ideal for use on space-constrained
boards.
Features
• Two LVPECL/ECL output pairs
• Frequency divide select options: ÷1 (pass through), ÷2, ÷4, ÷8,
÷16
• IN, nIN input can accept the following differential input levels:
LVPECL, LVDS, CML
• Output frequency: 2GHz (maximum)
• Output skew: 15ps (maximum)
• Part-to-part skew: 250ps (maximum)
• Additive phase jitter, RMS: 0.20ps (typical)
• LVPECL supply voltage range: 2.375V to 3.63V
• ECL supply voltage range: -3.63V to -2.375V
• -40°C to 85°C ambient operating temperature
• Available in lead-free (RoHS 6) package
Block Diagram
S2 Pullup
nRESET Pullup
Enable
FF
Enable
MUX
IN
50Ω
VT
50Ω
nIN
S0 Pullup
S1 Pullup
Decoder
VREF_AC
00 ÷2
01 ÷4
10 ÷8
11 ÷16
0
1
Pin Assignment
16 15 14 13
Q0 1
12 IN
nQ0 2
11 VT
Q1 3
10 VREF_AC
Q0
nQ1 4
9 nIN
56 78
nQ0
Q1
nQ1 ICS8S89874I
16-Lead VFQFN
3mm x 3mm x 0.925mm package body
K Package
Top View
ICS8S89874BKI REVISION A OCTOBER 22, 2010
1
©2010 Integrated Device Technology, Inc.
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ICS8S89874I Data Sheet
1:2 DIFFERENTIAL-TO-LVPECL BUFFER/DIVIDER
Table 4C. Differential DC Characteristics, VCC = 3.3V ± 10% or 2.5V ± 5%, VEE = 0V, TA = -40°C to 85°C
Symbol Parameter
Test Conditions
Minimum
Typical
Maximum
RIN
VIH
VIL
VIN
VDIFF_IN
IIN
VREF_AC
Differential Input Resistance (IN, nIN)
Input High Voltage
(IN, nIN)
Input Low Voltage
(IN, nIN)
Input Voltage Swing
Differential Input Voltage Swing
Input Current; NOTE 1
(IN, nIN)
Bias Voltage
40
1.2
0
0.15
0.3
VCC – 1.45
50
VCC – 1.37
60
VCC
VIH – 0.15
1.2
35
VCC – 1.32
NOTE 1: Guaranteed by design.
Units
Ω
V
V
V
V
mA
V
Table 4D. LVPECL DC Characteristics, VCC = 3.3V ± 10% or 2.5V ± 5%, VEE = 0V, TA = -40°C to 85°C
Symbol Parameter
Test Conditions
Minimum
Typical
Maximum
VOH
VOL
VOUT
VDIFF_OUT
Output High Voltage; NOTE 1
Output Low Voltage; NOTE 1
Output Voltage Swing
Differential Output Voltage Swing
VCC – 1.175
VCC – 2.0
0.6
1.2
VCC – 0.82
VCC – 1.575
1.0
2.0
NOTE: Input and output parameters vary 1:1 with VCC.
NOTE 1: Outputs terminated with 50Ω to VCC – 2V.
Units
V
V
V
V
ICS8S89874BKI REVISION A OCTOBER 22, 2010
5
©2010 Integrated Device Technology, Inc.
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for ICS8S89874I electronic component. |
| Information | Total 19 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ICS8S89874I.PDF Datasheet ] | |
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