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PDF ICS84329AVT Data sheet ( Hoja de datos )
| Número de pieza | ICS84329AVT | |
| Descripción | 700MHZ/ LOW JITTER/ CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER | |
| Fabricantes | Integrated Circuit Systems | |
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Integrated
Circuit
Systems, Inc.
ICS84329
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
ICS
The ICS84329 is a general purpose, single output
high frequency synthesizer and a member of the
HiPerClockS™ HiPerClockS™family of High Performance Clock
Solutions from ICS. The VCO operates at a fre-
quency range of 200MHz to 700MHz. The VCO
frequency is programmed in steps equal to the value of the
crystal frequency divided by 16.The VCO and output frequency
can be programmed using the serial or parallel interfaces to the
configuration logic. The output can be configured to divide the
VCO frequency by 1, 2, 4, and 8. Output frequency steps as
small as 125KHz to 1MHz can be achieved using a 16MHz
crystal depending on the output dividers.
BLOCK DIAGRAM
FEATURES
• Fully integrated PLL, no external loop filter requirements
• 1 differential 3.3V LVPECL output
• Series resonant crystal oscillator interface
• Output frequency range: 25MHz to 700MHz
• VCO range: 200MHz to 700MHz
• Parallel interface for programming counter
and output dividers during power-up
• Serial 3 wire interface
• RMS Period jitter: 5.5ps (maximum)
• Cycle-to-cycle jitter: 35ps (maximum)
• 3.3V supply voltage
• 0°C to 70°C ambient operating temperature
• Lead-Free package fully RoHS compliant
• Pin compatible with the MC12429
PIN ASSIGNMENT
OE
XTAL_IN
XTAL_OUT
OSC
÷ 16
PLL
PHASE DETECTOR
VCO
÷M
÷1
1 ÷2
÷4
÷8
0
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M0:M8
N0:N1
CONFIGURATION
INTERFACE
LOGIC
S_CLOCK
S_DATA
S_LOAD
VCCA
nc
nc
XTAL_IN
FOUT
nFOUT
25 24 23 22 21 20 19
26 18
27 17
28 ICS84329 16
1
28-Lead PLCC
15
2
V Package
11.6mm x 11.4mm x
4.1mm
14
3 Top View 13
4 12
5 6 7 8 9 10 11
N1
N0
M8
M7
M6
M5
M4
TEST
S_CLOCK
S_DATA
S_LOAD
VCCA
VCCA
nc
nc
XTAL_IN
32 31 30 29 28 27 26 25
1 24
2 23
3 ICS84329 22
4 32-Lead LQFP 21
Y package
5 7mm x 7mm x 1.4mm 20
6
Top View
19
7 18
8 17
9 10 11 12 13 14 15 16
nc
N1
N0
M8
M7
M6
M5
M4
84329AV
www.icst.com/products/hiperclocks.html
1
REV. D DECEMBER 15, 2004
1 page  
Integrated
Circuit
Systems, Inc.
ICS84329
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VCC
Inputs, VI
Outputs, IO
Continuous Current
Surge Current
Package Thermal Impedance, θJA
For 28 Lead PLCC
For 32 Lead LQFP
Storage Temperature, TSTG
4.6V
-0.5V to VCC + 0.5V
50mA
100mA
37.8°C/W (0 lfpm)
47.9°C/W (0 lfpm)
-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, VCC = VCCA = 3.3V±5%, TA = 0°C TO 70°C
Symbol
VCC
VCCA
ICC
ICCA
Parameter
Core Supply Voltage
Analog Supply Voltage
Power Supply Current
Analog Supply Current
Test Conditions
Minimum
3.135
3.135
Typical
3.3
3.3
Maximum Units
3.465
V
3.465
V
125 mA
15 mA
TABLE
4B.
LVCMOS
/
LVTTL
DC
CHARACTERISTICS,
V
CC
=
V
CCA
=
3.3V±5%,
TA
=
0°C
TO
70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
VIH Input High Voltage
2
VIL Input Low Voltage
-0.3
IIH
Input High Current
M0-M8, N0, N1,
OE, nP_LOAD
S_LOAD,
S_DATA, S_CLOCK
VCC = VIN = 3.465V
VCC = VIN = 3.465V
M0-M8, N0, N1,
OE, nP_LOAD
VCC = 3.465V, VIN = 0V
-150
IIL
Input Low Current
S_LOAD,
S_DATA, S_CLOCK
VCC = 3.465V, VIN = 0V
-5
VCC + 0.3
0.8
5
150
V
V
µA
µA
µA
µA
VOH Output High Voltage; NOTE 1
2.6 V
VOL Output Low Voltage; NOTE 1
0.5 V
NOTE 1: Outputs terminated with 50Ω to VCC/2. See Parameter Measurement Information, "3.3V Output Load Test Circuit".
TABLE 4C. LVPECL DC CHARACTERISTICS, VCC = VCCA = 3.3V±5%, TA = 0°C TO 70°C
Symbol Parameter
VOH Output High Voltage; NOTE 1
VOL Output Low Voltage; NOTE 1
V Peak-to-Peak Output Voltage Swing
SWING
NOTE 1: Outputs terminated with 50Ω to VCC - 2V.
Test Conditions
Minimum
VCC - 1.4
VCC - 2.0
0.6
Typical
Maximum
VCC - 1.0
VCC - 1.7
0.95
Units
V
V
V
84329AV
www.icst.com/products/hiperclocks.html
5
REV. D DECEMBER 15, 2004
5 Page 
Integrated
Circuit
Systems, Inc.
ICS84329
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
LAYOUT GUIDELINE
The schematic of the ICS84329 layout example used in this
layout guideline is shown in Figure 6A.The ICS84329 recommended
PCB board layout for this example is shown in Figure 6B. This
layout example is used as a general guideline. The layout in the
actual system will depend on the selected component types, the
density of the components, the density of the traces, and the stack
up of the P.C. board.
VCC=3.3V
S P = S p ace (i .e . n o t i ntsta lle d )
M [8:0]= 11 0 01 0 00 0 (4 00 )
N[1 :0 ] =0 1 (Di vid e by 2 )
M4 12
M5
M6
M7
M8
N2
N1
13
14
15
16
17
18
M4
M5
M6
M7
M8
N0
N1
U1
84329AV
VCC
RU0
SP
RU1
SP
RU7
1K
RU8
1K
RU9
SP
RU10 RU11 RU12
1K SP 1K
C2
0.1u
RD0
1K
RD1
1K
RD7
SP
RD8
SP
RD9
1K
RD10 RD6
SP 1K
RD12
SP
16MHz,18pF
X1
XTALIN
nc
nc
VCCA
S_LOAD
S_DATA
S_CLOCK
4
3
2
1
28
27
26
C3
22p
VCC
C4
22p
R7
10
VCCA
C11
0.01u
C16
10u
C1
0.1uF
Zo = 50 Ohm
Fout = 200 MHz
Zo = 50 Ohm
R2 R1
50 50
R3
50
FIGURE 6A. SCHEMATIC OF RECOMMENDED LAYOUT
84329AV
www.icst.com/products/hiperclocks.html
11
REV. D DECEMBER 15, 2004
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet ICS84329AVT.PDF ] | |
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