參數資料
型號: SA8028
廠商: NXP Semiconductors N.V.
英文描述: 2.5 GHz sigma delta fractional-N / 760 MHz IF integer frequency synthesizers
中文描述: 2.5千兆赫Σ-Δ小數N /中頻整數760兆赫的頻率合成器
文件頁數: 6/28頁
文件大小: 278K
代理商: SA8028
Philips Semiconductors
Product data
SA8028
2.5 GHz sigma delta fractional-N /
760 MHz IF integer frequency synthesizers
2002 Feb 22
6
CHARACTERISTICS
V
DDCP
= V
DD
= V
DDpre
= +3.0 V,
T
amb
= +25
°
C;
unless otherwise specified.
SYMBOL
PARAMETER
Supply
V
DD
,
V
DDpre
V
DDCP
Charge pump supply voltage
I
DDTotal
Synthesizer operational total supply current
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Digital supply voltage, prescaler supply voltage
V
DD
= V
DDpre
2.7
3.6
V
V
DDCP
V
DD,
V
DDpre
f
= 20 MHz
(with RF on, IF on)
(with RF on, IF off)
logic levels 0 or V
DD
2.7
7.6
3.6
V
mA
6.4
0.1
1
mA
μ
A
I
DDsleep
RF divider input
f
RFin
V
RFin
Total supply current in power-down mode
RF VCO input frequency range
AC-coupled input signal level
500
–15
2500
0
MHz
dBm
R
in
(external) = R
s
= 50
;
single-ended drive;
max. limit is indicative
@ 500 to 2500 MHz
112
632
mV
pp
Z
RFin
C
RFin
N
RF
F
COMPmax
IF divider input
f
IFin
V
IFin
Input impedance Re (Z)
Typical pin input capacitance
RF divider ratio ranges
Maximum phase comparator frequency
f
RFin
= 2.4 GHz
f
RFin
= 2.4 GHz
Limited test coverage
RF phase comparator
33
300
1
509
30
pF
MHz
Input frequency range
AC-coupled input signal level
100
–15
760
0
MHz
dBm
f
IFin
: 100 MHz to 500 MHz
R
(external) = R
= 50
;
max. limit is indicative
f
IFin
: 500 MHz to 760 MHz
R
in
(external) = R
S
= 50
;
max. limit is indicative
f
RFin
= 500 MHz
f
RFin
= 500 MHz
R
112
632
mV
pp
R
–10
0
dBm
200
632
mV
pp
Z
Fin
C
Fin
N
IF
Reference divider input
f
REFin
V
REFin
Input impedance Re (Z)
Typical pin input capacitance
IF division ratio
128
3.9
0.5
16383
k
pF
Input frequency range from TCXO
AC-coupled input signal level
5
360
30
1300
MHz
mV
PP
single-ended drive;
max. limit is indicative
f
REF
= 20 MHz
f
REF
= 20 MHz
SA = ”000”, IF loop
Z
REFin
C
REFin
R
REF
Charge pump current setting resistor input
R
SET
External resistor from pin to ground
V
SET
Regulated voltage at pin
Charge pump outputs; R
SET
= 7.5 k
I
CP
Charge pump current ratio to I
SET1
I
MATCH
Sink-to-source current matching
I
ZOUT
Output current variation versus V
PH2
I
LPH
Charge pump off leakage current
V
PH
Charge pump voltage compliance
Input impedance Re (Z)
Typical pin input capacitance
Reference division ratio
4
10
1
1023
k
pF
6
7.5
1.22
15
k
V
R
SET
= 7.5 k
Current gain = I
PH
/I
SET
V
PH
= 1/2 V
DDCP
V
PH
in compliance range
V
PH
= 1/2 V
DDCP
–15
–10
–10
–10
0.6
+15
+10
+10
+10
V
DDCP
–0.7
%
%
%
nA
V
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