SKY72302-21 Datasheet, PDF (17/23 Pages) Skyworks Solutions Inc. – SKY72302-21: Spur-Free, 6.1 GHz Dual Fractional-N Frequency Synthesizer

DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER
Table 8. Electrical Characteristics (Note 1) (1 of 2)
(VDD = 3 V, TA = 25 qC, Unless Otherwise Noted)
Parameter
Symbol
Power Consumption
Total power consumption
PTOTAL
Power-down current
Reference Oscillator
Reference oscillator frequency
Oscillator sensitivity (as a buffer)
Frequency shift versus supply voltage
VCOs
Main synthesizer operating frequency
Auxiliary synthesizer operating frequency
RF input sensitivity
Main fractional-N tuning step size
Auxiliary fractional-N tuning step size
Noise
Phase noise floor
ICC-PWDN
FOSC
VOSC
FSHIFT_SUPPLY
FVCO_MAIN
FVCO_AUX
VVCO
'FSTEP_MAIN
'FSTEP_AUX
Pnf
Phase Detectors and Charge Pumps
Main phase detector frequency
Auxiliary phase detector frequency
Charge pump output source current
Charge pump output sink current
Charge pump accuracy
Charge pump output voltage linearity range
FREF_MAIN
FREF_AUX
ICP-SOURCE
ICP-SINK
ICP-ACCURACY
ICP vs VCP
Charge pump current versus temperature
ICP vs T
Charge pump current versus voltage
ICP vs VCP
Test Conditions
Min
Typ
Max
Charge pump currents of
200 PA. Both synthesizers
fractional,
FREF_MAIN = 20 MHz,
FREF_AUX = 1 MHz
Auxiliary synthesizer
power down
54
39
10 (Note 2)
50
AC coupled, single-ended
0.1
2.0
2.7 V d VXTAL d 3.3 V
r0.3
Sinusoidal, –40 qC to
+85 qC
Sinusoidal, –40 qC to
+85 qC
AC coupled
400 (Note 3)
6100
100 (Note 4)
1000
50
250
4 u FREF_MAIN/2¹⁸ or FREF_MAIN/2¹⁰
FREF_AUX/2¹⁰
Measured inside the loop
bandwidth using 25 MHz
reference frequency,
–40 qC to +85 qC
–128
+ 20 Log (N)
–40 qC to +85 qC
25
–40 qC to +85 qC
25
VCP = 0.5 VCCCP
125
1000
VCP = 0.5 VCCCP
–125
–1000
±20
0.5 V d VCP d (VCCCP
– 0.5 V)
GND + 400
VCCCP – 400
VCP = 0.5 VCCCP
5
–40 qC < T < +85 qC
0.5 V d VCP d (VCCCP
8
– 0.5 V)
Units
mW
mW
PA
MHz
Vpp
ppm
MHz
MHz
mVpeak
Hz
Hz
dBc/Hz
MHz
MHz
PA
PA
%
mV
%
%
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
101216L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 9, 2009
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