參數(shù)資料
型號(hào)： PS2500
廠商： Electronic Theatre Controls, Inc.
元件分類： XO, clock
英文描述： Low-Power Direct Digital Modulation Frequency Synthesizer
中文描述： 低功耗直接數(shù)字調(diào)制頻率合成器
文件頁(yè)數(shù)： 16/28頁(yè)
文件大?。?/td> 184K
代理商： PS2500
PS2500 2.2 GHz Fractional-N Frequency Synthesizer
- 16 -
Philsar Semiconductor Inc.
146 Colonnade Road S.
Nepean, Ontario, Canada
K2E 7Y1
Tel: 613-274-0922
Fax: 613-274-0915
www.philsar.com
PMP-001-DS2 V1.2
Table 3: Reference Oscillator
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
F
osc
Reference oscillator frequency
-
-
-
50
MHz
V
osc
Oscillator sensitivity (as a buffer)
AC Coupled, single-ended
0.05
-
2.0
V
pp
F
shift_ship
Frequency shift at shipping
T = 25
°
C, V
xtal
= 3.0 V
With 1% tolerance 20 pF
crystal loading capacitors
-
-
±
3
ppm
F
shift_temp
Frequency shift vs temperature
-40
°
C < T < +85
°
C
V
xtal
= 3.0 V
-
-
±
3
F
shift_supply
Frequency shift vs supply voltage
T = 25
°
C
2.7 V
≤
V
xtal
≤
3.3 V
-
-
±
0.3
Table 4: VCOs
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
F
vco_main
Main synthesizer operating
frequency
Sinusoidal
300
a
a.
b.
When operating in integer mode, minimum main synthesizer frequency is 100 MHz
When operating in integer mode, minimum auxiliary synthesizer frequency is 100 MHz
-
2200
MHz
F
vco_aux
Auxiliary synthesizer operating
frequency
300
b
-
500
V
vco
RF input sensitivity
AC Coupled
50
-
250
mV
peak
Z
vco_in
RF input impedance
-
1000
-
F
step_main
Main Fractional-N tuning step size
-
F
ref_main
/ 2
18
or F
ref_main
/ 2
10
Hz
F
step_aux
Aux Fractional-N tuning step size
-
F
ref_aux
/ 2
10
Table 5: Noise
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
P
nf
Phase noise floor
In PLL loop bandwidth
-
-132 +
20Log(N)
-
dBc/Hz
P
IB
Total spurious power
-
-70
-
dBc
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