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PL585-28 Schematic ( PDF Datasheet ) - Micrel

Teilenummer PL585-28
Beschreibung 19MHz to 250MHz Low Phase-Noise VCXO
Hersteller Micrel
Logo Micrel Logo 




Gesamt 6 Seiten
PL585-28 Datasheet, Funktion
(Preliminary) PL585-28
19MHz to 250MHz Low Phase-Noise VCXO
FE AT UR E S
< 0.6ps RMS phase jitter (12kHz to 20MHz)
at 155.52MHz
30ps max peak to peak period jitter
Ultra Low-Power Consumption
< 90mA @155MHz PECL output
<10A at Power Down (PDB) Mode
Input Frequency:
Fundamental Crystal: 19MHz to 40MHz
Output Frequency:
19MHz to 250MHz output.
Output type: LVPECL
High Linearity VCXO: <10% linearity
Pullability: ±150 ppm
Programmable OE input polarity selection.
Power Supply: 3.3V, ±10%
Operating Temperature Ranges:
Commercial: 0C to 70C
Industrial: -40C to 85C
Available in Die or Wafer
PIN CONFIGURATION
65 mil
VCON/
9
SCLK
8
Die ID
OE/PDB/
SDIO
DNC
10
11
GND_ANA
GND_DIG
GND_BUF
12
13
14
(0,0)
PL585
(1650,2250)
7
6 VDD_ANA
5 VDD_DIG
4 VDD_BUF
3 QB
2 VDD_BUF
1Q
DESCRIPTION
The PL585-28 is a Dual LC core monolithic IC clock,
capable of maintaining sub-picoseconds RMS phase
jitter, while covering a wide frequency output range
up to 250MHz, without the use of external
components. The high performance and high
frequency output is achieved using a low cost
fundamental crystal of between 19MHz and 40 MHz.
The PL585-28 is designed to address the demanding
requirements of high performance applications such
as Fiber Channel, serial ATA, Ethernet, SAN,
SONET/SDH, etc.
BLOCK DIAGRAM
OE/PDB
XIN/REF
XOUT
VCON
(Default pre-programmed output path)
Xtal
Osc
PD/CP
LF HF
LCVCOs
Varicap
Programmable Function
M Divider
(5 bit)
Pre-scalar
4/6
/2
P Divider
(4 bit)
/2
Q
QB
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 12/16/11 Page 1






PL585-28 Datasheet, Funktion
(Preliminary) PL585-28
7. LVPECL OUTPUTS (Q, QB)
PARAMETERS
SYMBOL
Output High Voltage
VOH
Output Low Voltage
VOL
Output Frequency
Output Rise, Fall Times
Output Voltage Swing
Fout
tr, tf
Vpp
LVPECL Levels Test Circuit
19MHz to 250MHz Low Phase-Noise VCXO
CONDITIONS
Q, QB
Standard LVPECL Termination,
VDD = 3.3V
3.3V
20% - 80% of Qpp/QBpp
Q, QB
MIN
2.275
1.490
19
550
TYP
2.350
1.600
200
800
LVPECL Transistion Time Waveform
DUTY CYCLE
MAX
2.420
1.680
250
300
900
UNITS
V
V
MHz
ps
mV
OUT
VDD
45 - 55%
55 - 45%
50? 2.0V
50?
OUT
ORDERING INFORM ATION
OUT
80%
50%
20%
OUT
tR
tF
For part ordering, please contact our Sales Department:
2180 Fortune Drive, San Jose, CA 95131, USA
Tel: (408) 944-0800 Fax: (408) 474-1000
PART NUMBER
The order number for this device is a combination of the following:
Part number, Package type, Thickness and Operating temperature range
Part Number
PL585-28 XX
Packaging Option
D = Die
W = Wafer
Temperature Range
C=Commercial (0°C to 70°C)
Order Number P/N
PECL
PL585-28DC
Output
Frequency Range
≤250MHz
Packaging Option
Waffle Pack (Die)
PL585-28WC
≤250MHz
Wafer
Micrel Inc., reserves the right to make changes in its products or specifications, or both at any time without notice. The in formation furnished by Micrel
is believed to be accurate and reliable. However, Micrel makes no guarantee or warranty concerning the accuracy of said information a nd shall not be
responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product.
LIFE SUPPORT POLICY: Micrel’s products are not authorized for use as critical components in life support devices or systems without the express
written approval of the President of Micrel Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 12/16/11 Page 6

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