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SA8027 Datasheet(Fiches technique) 6 Page - NXP Semiconductors

Numéro de pièce SA8027
Description  2.5 GHz low voltage, low power RF fractional-N/IF integer frequency synthesizer
Télécharger  22 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
SA8027
2.5 GHz low voltage, low power
RF fractional-N/IF integer frequency synthesizer
2001 Aug 21
6
CHARACTERISTICS
VDDCP = VDD = +3.0 V, Tamb = +25 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
VDD
Digital supply voltage
2.7
3.6
V
VDDCP
Analog supply voltage
VDDCP w VDD
2.7
3.6
V
ITotal
Synthesizer operational supply current
VDD = +3.0 V
(with main and aux on)
7.7
mA
IStandby
Total supply current in power-down mode
logic levels 0 or VDD
1
µA
RFin main divider input
fVCO
VCO input frequency
500
2500
MHz
VRFin
AC-coupled input signal level
Rin (external) = Rs = 50 Ω;
single-ended drive;
–18
0
dBm
g
max. limit is indicative
@ 500 to 2500 MHz
80
632
mVPP
ZRFin
Input impedance (real part)
fVCO = 2.4 GHz
300
CRFin
Typical pin input capacitance
fVCO = 2.4 GHz
1
pF
Nmain
Main divider ratio
512
65535
fPCmax
Maximum loop comparison frequency
indicative, not tested
4
MHz
AUX divider input
fAUXin
Input frequency range
100
550
MHz
V
AC coupled input signal level
Rin (external) = RS = 50 Ω;
–15
0
dBm
VAUXin
AC-coupled input signal level
in ()
S
max. limit is indicative
112
632
mVPP
ZAUXin
Input impedance (real part)
fVCO = 500 MHz
3.9
k
CAUXin
Typical pin input capacitance
fVCO = 500 MHz
0.5
pF
NAUX
Auxiliary division ratio
128
16383
Reference divider input
fREFin
Input frequency range from TCXO
5
40
MHz
VREFin
AC-coupled input signal level
single-ended drive;
max. limit is indicative
360
1300
mVPP
ZREFin
Input impedance (real part)
fREF = 20 MHz
10
k
CREFin
Typical pin input capacitance
fREF = 20 MHz
1
pF
RREF
Reference division ratio
SA = SM = ”000”
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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