Analog Frequency Multiplier
PL560-xx VCXO Family
ꢀ
CRYSTAL SPECIFICATIONS AND BOARD LAYOUT CONSIDERATIONS
BOARD LAYOUT CONSIDERATIONS
AFM IC
AFM IC
XIN (Pin # 4)
XIN (Pin # 4)
XTAL
Ceramic
SMD
XTAL
XOUT (Pin # 5)
XOUT (Pin # 5)
Toꢀminimizeꢀparasiticꢀeffects,ꢀandꢀimproveꢀperformance:ꢀ
•ꢀ PlaceꢀtheꢀcrystalꢀasꢀcloseꢀasꢀpossibleꢀtoꢀtheꢀIC.ꢀꢀ
•ꢀ Makeꢀtheꢀboardꢀtracesꢀthatꢀareꢀconnectedꢀtoꢀtheꢀcrystalꢀpinsꢀsymmetrical.ꢀꢀꢀ
•ꢀ Theꢀboardꢀtraceꢀsymmetryꢀisꢀimportant,ꢀasꢀitꢀreducesꢀtheꢀnegativeꢀparasiticꢀeffectsꢀtoꢀproduceꢀaꢀcleanꢀfrequencyꢀmultiplicationꢀwithꢀ
lowꢀjitter.ꢀꢀParasiticꢀeffectsꢀreduceꢀfrequencyꢀpullingꢀofꢀtheꢀVCXOꢀandꢀincreaseꢀjitter.ꢀ
CRYSTAL SPECIFICATIONS & TUNING PERFORMANCE
CRYSTAL SPECIFICATIONS
TUNING PERFORMANCE
ESR
(RE)
CRYSTAL
RESONATOR
FREQUENCY
(FXIN)
CL (xtal)
CRYSTAL
TUNING (Typical)
PART
NUMBER
MODE
CRYSTAL
FREQ
(MHz)
ꢀ
ꢀ
VC:
CONDI-
TYP.
Max.
C0
C1
C0/C1
VC:
TIONS
1.65V
0V
1.65V 3.4V
Atꢀꢀ
VCONꢀ
=ꢀ
155.52ꢀ
155.52ꢀ
30.72ꢀ
30.72ꢀ
38.88ꢀ
38.88ꢀ
77.76ꢀ
3.0pFꢀ
1.8pFꢀ
2.8pFꢀ
4.5pFꢀ
5.1pFꢀ
5.3pFꢀ
2.0pFꢀ
12.2fFꢀ
5.7fFꢀ
245ꢀ
316ꢀ
228ꢀ
236ꢀ
242ꢀ
207ꢀ
305ꢀ
ꢀꢁ145ꢀppmꢀ
ꢀꢁ134ꢀppmꢀ
ꢀꢁ167ppmꢀ
ꢀꢁ163ꢀppmꢀ
ꢀꢁ131ꢀppmꢀ
ꢀꢁ157ꢀppmꢀ
ꢀꢁ92ꢀppmꢀ
ꢀ+108ꢀppmꢀ
ꢀ+87ꢀppmꢀ
ꢀ+176ꢀppmꢀ
ꢀ+167ꢀppmꢀ
ꢀ+98ꢀppmꢀ
ꢀ+141ꢀppmꢀ
ꢀ+110ꢀppmꢀ
PL560ꢁ08/09ꢀ
PL560ꢁ68/69ꢀ
Fundaꢁꢀ
mentalꢀ
75~200MHzꢀ
5pFꢀ
30 ꢀ
1.65Vꢀ
12.4fFꢀ
19.1fFꢀ
20.9fFꢀ
25.6fFꢀ
6.7fFꢀ
PL560ꢁ
37/38/39ꢀ
PL560ꢁ
47/48/49ꢀ
Atꢀꢀ
VCONꢀ
=ꢀꢀ
Fundaꢁꢀ
mentalꢀ
30~80MHzꢀ
5pFꢀ
30 ꢀ
1.65Vꢀ
Note: Non specified parameters can be chosen as standard values from crystal suppliers.
CL ratings larger than 5pF require a crystal frequency adjustment. Request detailed crystal specifications from PhaseLink.
47745ꢀFremontꢀBlvd.,ꢀFremont,ꢀCAꢀ94538ꢀꢀTELꢀ(510)ꢀ492ꢁ0990,ꢀFAXꢀ(510)ꢀ492ꢁ0991ꢀꢀꢀ www.phaselink.comꢀꢀꢀꢀꢀRev.:02ꢁ09ꢁ07ꢀꢀPageꢀ4ꢀꢀ
PLL [ PHASELINK CORPORATION ]
