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Integrated Device Technology Electronic Components Datasheet

ICS8430002 Datasheet

High-Performance Fractional-N Frequency Synthesizer

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ICS8430002 pdf
High-Performance Fractional-N
Frequency Synthesizer
ICS8430002
www.DataSheet4U.com
DATA SHEET
General Description
The ICS8430002 is a general purpose, high-
ICS performance, fractional-n LVPECL frequency
HiPerClockS™ synthesizer which can generate frequencies for a wide
variety of applications with output frequency step sizes
of <10ppm. The ICS8430002 has a 2:1 input
Multiplexer from which either a crystal input or a differential input can
be selected. The differential input can be wired to accept
single-ended signals (see the applications section of this datasheet).
Each of the differential LVPECL outputs has an output divider which
can be independently set so that two different frequencies can be
generated. Additionally, each LVPECL output pair has a dedicated
power supply pin so the outputs can run at 3.3V or 2.5V. The
ICS8430002 also supplies a buffered copy of the reference clock or
crystal frequency on the single-ended REF_OUT pin which can be
enabled or disabled (disabled by default). The output frequency can
be programmed using either a serial or parallel programming
interface.
The device features a fractional feedback divider with a 6-bit integer
and 12-bit fractional value. The minimum step value of the feedback
divider is 1/4096.
Features
6-Bit Integer and 12-Bit Fractional Feedback Divider
Dual differential 3.3V LVPECL outputs which can be set
independently for either 3.3V or 2.5V
2:1 Input Mux:
One differential input
One crystal oscillator interface
PCLK, nPCLK pair can accept the following differential input
levels: LVPECL, CML, SSTL
Output frequency range: 30.625MHz to 640MHz
Crystal input frequency range: 12MHz to 40MHz
VCO range: 490MHz to 650MHz
Parallel or serial interface for programming feedback divider and
output dividers
Supply voltage modes:
Core/Outputs:
3.3V/3.3V
3.3V/2.5V
0°C to 70°C ambient operating temperature
Available in lead-free (RoHS 6) package
Pin Assignment
P2
NB0
NB1
NB2
OE_REF
OEA
OEB
VCC
NA0
NA1
NA2
VEE
48 47 46 45 44 43 42 41 40 39 38 37
1 36
2 35
3 ICS8430002 34
4 48 Lead LQFP 33
5 7mm x 7mm x 1.4mm 32
6
7
package body
31
30
8 Y Package 29
9 Top View
10
28
27
11 26
12 25
13 14 15 16 17 18 19 20 21 22 23 24
nc
nc
XTAL_OUT
XTAL_IN
nc
nc
SEL
VCCA
S_LOAD
S_DATA
S_CLOCK
MR
ICS8430002AY REVISION C NOVEMBER 12, 2009
1
©2009 Integrated Device Technology, Inc.


Integrated Device Technology Electronic Components Datasheet

ICS8430002 Datasheet

High-Performance Fractional-N Frequency Synthesizer

No Preview Available !

ICS8430002 pdf
ICS8430002 Data Sheet
Block Diagram
OEA Pullup
VCO_SEL Pullup
XTAL_IN
XTAL_OUT
OSC
PCLK Pulldown
nPCLK Pullup/Pulldown
SEL Pulldown
P[2:0] Pulldown
OEB Pullup
MR Pulldown
OE_REF Pulldown
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M5:M0
NA2:NA0
NB2:NB0
Pulldown
Pulldown
Pulldown
Pulldown
6
3
3
3
0
P_DIV
1
HIGH-PERFORMANCE FRACTIONAL-N FREQUENCY SYNTHESIZER
www.DataSheet4U.com
Phase VCO
Detector
0
1
÷M
000 ÷1
001 ÷2
010 ÷3
011 ÷4
100 ÷5
101 ÷6
110 ÷8
111 ÷16
VCCO_A
FOUTA
nFOUTA
000 ÷1
001 ÷2 VCCO_B
010 ÷3
FOUTB
011 ÷4
100 ÷5
nFOUTB
101 ÷6
110 ÷8
111 ÷16
VCCO_REF
REF_OUT
Configuration Interface Logic
TEST
ICS8430002AY REVISION C NOVEMBER 12, 2009
2
©2009 Integrated Device Technology, Inc.


Part Number ICS8430002
Description High-Performance Fractional-N Frequency Synthesizer
Maker Integrated Device Technology
Total Page 27 Pages
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