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SA8028 Datasheet(Fiches technique) 6 Page - NXP Semiconductors

Numéro de pièce SA8028
Description  2.5 GHz sigma delta fractional-N / 760 MHz IF integer frequency synthesizers
Télécharger  28 Pages
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
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 6 page
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Philips Semiconductors
Product data
SA8028
2.5 GHz sigma delta fractional-N /
760 MHz IF integer frequency synthesizers
2002 Feb 22
6
CHARACTERISTICS
VDDCP = VDD = VDDpre= +3.0 V, Tamb = +25°C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
VDD,
VDDpre
Digital supply voltage, prescaler supply voltage
VDD = VDDpre
2.7
3.6
V
VDDCP
Charge pump supply voltage
VDDCP ≥ VDD, VDDpre
2.7
3.6
V
IDDTotal
Synthesizer operational total supply current
fREF = 20 MHz
(with RF on, IF on)
7.6
mA
(with RF on, IF off)
6.4
mA
IDDsleep
Total supply current in power-down mode
logic levels 0 or VDD
0.1
1
µA
RF divider input
fRFin
RF VCO input frequency range
500
2500
MHz
VRFin
AC-coupled input signal level
Rin (external) = Rs = 50 Ω;
single-ended drive;
–15
0
dBm
g
max. limit is indicative
@ 500 to 2500 MHz
112
632
mVpp
ZRFin
Input impedance Re (Z)
fRFin = 2.4 GHz
300
CRFin
Typical pin input capacitance
fRFin = 2.4 GHz
1
pF
NRF
RF divider ratio ranges
Limited test coverage
33
509
FCOMPmax
Maximum phase comparator frequency
RF phase comparator
30
MHz
IF divider input
fIFin
Input frequency range
100
760
MHz
VIFin
AC-coupled input signal level
fIFin: 100 MHz to 500 MHz
R (external)
R
50
Ω;
–15
0
dBm
Rin (external) = RS = 50 Ω;
max. limit is indicative
112
632
mVpp
fIFin: 500 MHz to 760 MHz
R (external)
R
50
Ω;
–10
0
dBm
Rin (external) = RS = 50 Ω;
max. limit is indicative
200
632
mVpp
ZFin
Input impedance Re (Z)
fRFin = 500 MHz
3.9
k
CFin
Typical pin input capacitance
fRFin = 500 MHz
0.5
pF
NIF
IF division ratio
128
16383
Reference divider input
fREFin
Input frequency range from TCXO
5
30
MHz
VREFin
AC-coupled input signal level
single-ended drive;
max. limit is indicative
360
1300
mVPP
ZREFin
Input impedance Re (Z)
fREF = 20 MHz
10
k
CREFin
Typical pin input capacitance
fREF = 20 MHz
1
pF
RREF
Reference division ratio
SA = ”000”, IF loop
4
1023
Charge pump current setting resistor input
RSET
External resistor from pin to ground
6
7.5
15
k
VSET
Regulated voltage at pin
RSET = 7.5 kΩ
1.22
V
Charge pump outputs; RSET = 7.5 kΩ
ICP
Charge pump current ratio to ISET1
Current gain = IPH/ISET
–15
+15
%
IMATCH
Sink-to-source current matching
VPH = 1/2 VDDCP
–10
+10
%
IZOUT
Output current variation versus VPH2
VPH in compliance range
–10
+10
%
ILPH
Charge pump off leakage current
VPH = 1/2 VDDCP
–10
+10
nA
VPH
Charge pump voltage compliance
0.6
VDDCP–0.7 V




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