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STA011 データシート(PDF) 13 Page - STMicroelectronics

部品番号 STA011
部品情報  L-band RF front-end for digital radio
PDF  38 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA011 データシート(HTML) 13 Page - STMicroelectronics

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STA011
Electrical specifications
13/38
Figure 4.
System clock input/output
Table 9.
Base-band output performance
Symbol
Parameter
Test conditions/notes
Min.
Typ.
Max.
Unit
Rload
Baseband Output load
resistance
The output resistance the
IC is loaded
SE to GND
5K
Ω
Cload
Baseband output load
capacitance
The output capacitance the
IC is loaded
SE to GND
10
pF
Table 10.
Crystal oscillator, (T=25°C, VP-VN=3V)(1)
Symbol
Parameter
Test conditions/notes
Min.
Typ.
Max.
Unit
fXTAL1
Quartz frequency
Resonance mode: series
Using 14.72
14.72
MHz
fXTAL2
Quartz frequency
Resonance mode: series
Using 14.725
14.725
MHz
Pn
Phase Noise
Δf=1kHz
-120
-118
dBc
VDC,XTAL
XTAL1,2 common
mode voltage
VP-1.1
VP-.9
VP-.7
V
1.
A 18pF capacitor connected from XTAL1 pin to gnd is suggested for start-up robustness (see Figure 4).
M_CLKP
REF
;;
;;
;;
yy
yy
yy
MUX
Output
Buffer
to baseband
CD
Cp
18pF
AC00414
Table 11.
PLLs, Synthesizers, (Tamb = 25°C, VP-VN = 3V)
Symbol
Parameter
Test conditions/notes
Min.
Typ.
Max.
Unit
ts
RF pll loop setting
time
1
10
msec
Pn
Total phase noise
contribution
100Hz<
Δf<1.84MHz
1.8
°rms
fREF1
RF pll comparison
frequency
Programmable via software
mode
0.92
3.68
14.72
MHz
fREF2
IF pll comparison
frequency
Programmable via software
mode
113.23
KHz
PSP
Spurious power level
RFPLL,
Δf=n*460KHz
IFPLL,
Δf=113.23KHz
-50
-50
dBc



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