ICS83905I Datasheet PDF - Integrated Device Technology

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ICS83905I
Integrated Device Technology

Part Number ICS83905I
Description 1:6 CRYSTAL INTERFACETOLVCMOS / LVTTL FANOUT BUFFER
Page 17 Pages


ICS83905I datasheet pdf
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DATA SHEET
LOW SKEW, 1IC:n6itrecguCriattRedYSTAL INTERFACE-
TOLVCMOS / LSyVstTemTs,LIncF. ANOUT BUFFER
ICS83I9C0S58I3905I
LOW SKEW, 1:6 CRYSTAL INTERFACE-TO-
LVCMOS / LVTTL FANOUT BUFFER
GENERAL DESCRIPTION
ICS
The ICS83905I is a low skew, 1-to-6 LVCMOS /
LVTTL Fanout Buffer and a member of the
HiPerClockS™ HiPerClockS™family of High Performance Clock
Solutions from ICS. The low impedance
LVCMOS/LVTTL outputs are designed to drive
50W series or parallel terminated transmission lines. The ef-
fective fanout can be increased from 6 to 12 by utilizing the
ability of the outputs to drive two series terminated lines.
The ICS83905I is characterized at full 3.3V, 2.5V, and 1.8V,
mixed 3.3V/2.5V, 3.3V/1.8V and 2.5V/1.8V output operating
supply mode. Guaranteed output and part-to-part skew
characteristics along with the 1.8V output capabilities makes
the ICS83905I ideal for high performance, single ended appli-
cations that also require a limited output voltage.
FEATURES
6 LVCMOS / LVTTL outputs
Outputs able to drive 12 series terminated lines
Crystal oscillator interface
Crystal input frequency range: 10MHz to 40MHz
Output skew: 80ps (maximum)
RMS phase jitter @ 25MHz, (100Hz - 1MHz):
0.26ps (typical) (V = V = 2.5V)
DD DDO
Phase noise:
Offset
Noise Power
100Hz .............. -129.7 dBc/Hz
1kHz .............. -144.4 dBc/Hz
10kHz .............. -147.3 dBc/Hz
100kHz .............. -157.3 dBc/Hz
5V tolerant enable inputs
Synchronous output enables
Operating power supply modes:
Full 3.3V, 2.5V and 1.8V,
mixed 3.3V core/2.5V output operating supply,
mixed 3.3V core/1.8V output operating supply,
mixed 2.5V core/1.8V output operating supply
-40°C to 85°C ambient operating temperature
Lead-Free package fully RoHS compliant
BLOCK DIAGRAM
XTAL_IN
XTAL_OUT
ENABLE 1
ENABLE 2
SYNCHRONIZE
SYNCHRONIZE
PIN ASSIGNMENT
BCLK0
BCLK1
BCLK2
BCLK3
BCLK4
XTAL_OUT
ENABLE 2
GND
BCLK0
VDDo
BCLK1
GND
BCLK2
1
2
3
4
5
6
7
8
16 XTAL_IN
15 ENABLE 1
14 BCLK5
1 3 VDDO
12 BCLK4
11 GND
10 BCLK3
9 VDD
ICS83905I
16-Lead TSSOP
4.4mm x 5.0mm x 0.92mm body package
G Pacakge
Top View
BCLK5
83905AGI
http://www.icst.com/products/hiperclocks.html
IDT™ / ICS™ LOW SKEW, 1:6 CRYSTAL INTERFACE-TOLVCMOS / LVTT1L FANOUT BUFFER
1
REV. B MAY 16, 2005
ICS83905I



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ICS83905IICS83905I
L LVSCMO,S1:/6LCVTTL F I B - -LOW SKEW,
1:6
Integrated
Circuit
CSRyYsSteTmALs,IINnTcE.RFACE-TOLVCMOS
/
LVTTL
FANOUT
OBWUFFEKREW
RYSTAL NTERFACE TOTSD
ANOUT UFFER
TABLE 1. PIN DESCRIPTIONS
Number
1
2, 15
3, 7, 11
4, 6, 8,
10, 12, 14
5, 13
9
16
Name
XTAL_OUT
ENABLE 2, ENABLE 1
GND
BCLK0, BCLK1, BCLK2,
BCLK3, BCLK4, BCLK5
VDDO
VDD
XTAL_IN
Type
Output
Input
Power
Output
Power
Power
Input
Description
Crystal oscillator interface. XTAL_OUT is the output.
Clock enable. LVCMOS / LVTTL interface levels. See Table 3.
Power supply ground.
Clock outputs. LVCMOS / LVTTL interface levels.
Output supply pin.
Core supply pin.
Crystal oscillator interface. XTAL_IN is the input.
TABLE 2. PIN CHARACTERISTICS
Symbol
CIN
Parameter
Input Capacitance
CPD
Power Dissipation Capacitance
(per output)
ROUT
Output Impedance
Test Conditions
VDDO = 3.465V
VDDO = 2.625V
VDDO = 2V
VDDO = 3.3V ± 5%
VDDO = 2.5V ± 5%
VDDO = 1.8V ± 0.2V
Minimum
Typical
4
7
7
10
Maximum
19
18
16
Units
pF
pF
pF
pF
Ω
Ω
Ω
TABLE 3. OUTPUT ENABLE AND CLOCK ENABLE FUNCTION TABLE
Control Inputs
ENABLE 1 ENABLE 2
00
01
10
11
Outputs
BCLK0:BCLK4
BCLK5
LOW
LOW
LOW
Toggling
Toggling
LOW
Toggling
Toggling
BCLK5
BCLK0:4
ENABLE2
ENABLE1
FIGURE 1. ENABLE TIMING DIAGRAM
83905AGI
http://www.icst.com/products/hiperclocks.html
2
IDT™ / ICS™ LOW SKEW, 1:6 CRYSTAL INTERFACE-TOLVCMOS / LVTTL FANOUT BUFFER
2
REV. B MAY 16, 2005
ICS83905I



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ICS83905IICS83905I
L LVSCMO,S1:/6LCVTTL F I B - -LOW SKEW,
1:6
Integrated
Circuit
CSRyYsSteTmALs,IINnTcE.RFACE-TOLVCMOS
/
LVTTL
FANOUT
OBWUFFEKREW
RYSTAL NTERFACE TOTSD
ANOUT UFFER
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
DD
Inputs, VI
Outputs, V
O
Package Thermal Impedance, θJA
16 Lead TSSOP package
4.6V
-0.5V to VDD + 0.5 V
-0.5V to V + 0.5V
DDO
89°C/W (0 lfpm)
Storage Temperature, TSTG
-65°C to 150°C
NOTE: Stresses beyond those listed under Absolute
Maximum Ratings may cause permanent damage to the
device.These ratings are stress specifications only. Functional
operation of product at these conditions or any conditions be-
yond those listed in the DC Characteristics or AC Character-
istics is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect product reliability.
TABLE
4A.
POWER
SUPPLY
DC
CHARACTERISTICS,
V=
DD
V=
DDO
3.3V±5%,
TA
=
-40°C
TO
85°C
Symbol Parameter
Test Conditions
Minimum
VDD
V
DDO
IDD
IDDO
Core Supply Voltage
Output Supply Voltage
Power Supply Current
Output Supply Current
ENABLE 1:2 = 00
ENABLE 1:2 = 00
3.135
3.135
Typical
3.3
3.3
Maximum
3.465
3.465
10
5
Units
V
V
mA
mA
TABLE
4B.
POWER
SUPPLY
DC
CHARACTERISTICS,
V
DD
=
V
DDO
=
2.5V±5%,
TA
=
-40°C
TO
85°C
Symbol Parameter
Test Conditions
Minimum
VDD
VDDO
IDD
I
DDO
Core Supply Voltage
Output Supply Voltage
Power Supply Current
Output Supply Current
ENABLE 1:2 = 00
ENABLE 1:2 = 00
2.375
2.375
Typical
2.5
2.5
Maximum
2.625
2.625
8
4
Units
V
V
mA
mA
TABLE
4C.
POWER
SUPPLY
DC
CHARACTERISTICS,
V
DD
=
V=
DDO
1.8V±0.2V,
TA
=
-40°C
TO
85°C
Symbol Parameter
Test Conditions
Minimum
VDD
V
DDO
IDD
IDDO
Core Supply Voltage
Output Supply Voltage
Power Supply Current
Output Supply Current
ENABLE 1:2 = 00
ENABLE 1:2 = 00
1.6
1.6
Typical
1.8
1.8
Maximum
2.0
2.0
5
3
Units
V
V
mA
mA
TABLE 4D. POWER SUPPLY DC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 2.5V±5%, TA = -40°C TO 85°C
Symbol Parameter
Test Conditions
Minimum Typical
VDD
VDDO
IDD
IDDO
Core Supply Voltage
Output Supply Voltage
Power Supply Current
Output Supply Current
ENABLE 1:2 = 00
ENABLE 1:2 = 00
3.135
2.375
3.3
2.5
Maximum
3.465
2.625
10
4
Units
V
V
mA
mA
83905AGI
http://www.icst.com/products/hiperclocks.html
3
IDT™ / ICS™ LOW SKEW, 1:6 CRYSTAL INTERFACE-TOLVCMOS / LVTTL FANOUT BUFFER
3
REV. B MAY 16, 2005
ICS83905I



No Preview Available !

ICS83905IICS83905I
L LVSCMO,S1:/6LCVTTL F I B - -LOW SKEW,
1:6
Integrated
Circuit
CSRyYsSteTmALs,IINnTcE.RFACE-TOLVCMOS
/
LVTTL
FANOUT
OBWUFFEKREW
RYSTAL NTERFACE TOTSD
ANOUT UFFER
TABLE
4E.
POWER
SUPPLY
DC
CHARACTERISTICS,
V
DD
=
3.3V±5%,
V=
DDO
1.8V±0.2V,
TA
=
-40°C
TO
85°C
Symbol Parameter
Test Conditions
Minimum Typical
VDD
VDDO
IDD
IDDO
Core Supply Voltage
Output Supply Voltage
Power Supply Current
Output Supply Current
ENABLE 1:2 = 00
ENABLE 1:2 = 00
3.135
1.6
3.3
1.8
Maximum
3.465
2.0
10
3
Units
V
V
mA
mA
TABLE 4F. POWER SUPPLY DC CHARACTERISTICS, VDD = 2.5V±5%, VDDO = 1.8V±0.2V, TA = -40°C TO 85°C
Symbol Parameter
Test Conditions
Minimum Typical
VDD
VDDO
I
DD
IDDO
Core Supply Voltage
Output Supply Voltage
Power Supply Current
Output Supply Current
ENABLE 1:2 = 00
ENABLE 1:2 = 00
2.375
1.6
2.5
1.8
Maximum
2.625
2.0
8
3
Units
V
V
mA
mA
TABLE 4G. LVCMOS/LVTTL DC CHARACTERISTICS, TA = -40°C TO 85°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
VIH
Input High Voltage
ENABLE 1,
ENABLE 2
VDD = 3.3V ± 5%
VDD = 2.5V ± 5%
VDD = 1.8V ± 0.2V
2
1.7
0.65*VDD
VDD + 0.3
VDD + 0.3
VDD + 0.3
VIL
Input Low Voltage
ENABLE 1,
ENABLE 2
VDD = 3.3V ± 5%
VDD = 2.5V ± 5%
VDD = 1.8V ± 0.2V
-0.3
-0.3
-0.3
0.8
0.7
0.35*VDD
VDDO = 3.3V ± 5%; NOTE 1
2.6
VOH Output High Voltage
VDDO = 2.5V ± 5%; IOH = -1mA
VDDO = 2.5V ± 5%; NOTE 1
2
1.8
VDDO = 1.8V ± 0.2V; NOTE 1 VDDO - 0.3
VDDO = 3.3V ± 5%; NOTE 1
0.5
VOL Output Low Voltage
VDDO = 2.5V ± 5%; IOL = 1mA
VDDO = 2.5V ± 5%; NOTE 1
0.4
0.45
VDDO = 1.8V ± 0.2V; NOTE 1
0.35
NOTE 1: Outputs terminated with 50Ω to VDDO/2. See Parameter Measurement section, "Load Test Circuit" diagrams.
V
V
V
V
V
V
V
V
V
V
V
V
V
V
TABLE 5. CRYSTAL CHARACTERISTICS
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
Drive Level
Test Conditions
Minimum Typical Maximum
Fundamental
10 40
50
7
1
Units
MHz
Ω
pF
mW
83905AGI
http://www.icst.com/products/hiperclocks.html
4
IDT™ / ICS™ LOW SKEW, 1:6 CRYSTAL INTERFACE-TOLVCMOS / LVTTL FANOUT BUFFER
4
REV. B MAY 16, 2005
ICS83905I



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