RF105 Ver la hoja de datos (PDF) - Conexant Systems
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RF105 Datasheet PDF : 12 Pages
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RF105
900 MHz Digital Spread Spectrum Transceiver
Table 3. Electrical Specifications (2 of 3)
Parameter
Min
FREQUENCY SYNTHESIZER SECTION
LO frequency range
PLL VCO center frequency @ control voltage of 1.1 V
PLL VCO sensitivity
LO settling time
∆f = 10 MHz, settle to fFINAL ± 5 kHz, 5 kHz LFBW
LO phase noise 100 kHz offset
1 MHz offset
VCO (varactor) input leakage
Input reference frequency, FREF
Frequency step, FS
Comparison frequency (600 kHz) spur level
RMS phase jitter, 25–700 kHz
Input high voltage, STROBE, CLK, DATA, SYNTHEN
Input low voltage, STROBE, CLK, DATA, SYNTHEN
Input high current, STROBE, CLK, DATA
Input low current, STROBE, CLK, DATA
Input high current, SYNTHEN
Input low current, SYNTHEN
Input high voltage, FREF
Input low voltage, FREF
Input high current, FREF
Input low current, FREF
Charge-pump output current
Output short-circuit current
903
35
VIH
1.9
VIL
IIH
IIL
–25
IIH
IIL
–25
VIH
1.9
VIL
IIH
IIL
–25
CHPO
TRANSMITTER SECTION
Gain variation vs. frequency 902 MHz < fLO < 928 MHz
Peak-envelope output power (single-ended):
(note 2)
High power mode
(PS1 = 0, PS2 = 0)
–11
Medium power mode
(PS1 = 0, PS2 = 1)
Low power mode
(PS1 = 1, PS2 = 0)
Undefined mode
(PS1 = 1, PS2 = 1)
IM3 (TXD input signal 2 tones each 60 mVpp)
–30
Output VSWR for unconditional stability
LO suppression
–15
TXD input impedance
TXD input peak-to-peak sine wave for target output peak-envelope power
TXD input bandwidth
TXD to RF settle time to within spec value from TXEN
TX DC offset
Input high voltage, PS1, PS2, TXEN
Input low voltage, PS1, PS2, TXEN
VIH
1.9
VIL
Input high current, PS1, PS2, TXEN
Input low current, PS1, PS2, TXEN
IIH
IIL
–25
Input high current TXEN
Input low current TXEN
IIH
IIL
–25
Typical
915
50
–100
0.01
9.6
600
±225
0.5
–8
–19
–27.5
not used
–40
–25
10
120
80
Max
Units
927
75
2
–95
–115
–60
5
0.75
40
100
0.75
100
1.0
MHz
MHz
MHz/V
msec
dBc/Hz
µA
MHz
kHz
dBc
degrees RMS
V
µA
µA
V
µA
µA
mA
1.0
dB
–6.5
dBm
dBc
10:1
dBc
kΩ
mVpp
MHz
50
µs
2
mV
V
0.75
60
µA
100
µA
8
Conexant
W117, Rev. B
Conexant Proprietary Information
September 28, 1999
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