2400 MHz Digital Spread Spectrum Transceiver
RF109
Parameter
Transmitter Section
Gain variation vs. frequency
2400 MHz
<
f
LO
<
2483.5 MHz
–10.5
0.5
–8.0
–18
–26.5
not used
–35
–25
10
100
80
50
VIH
VIL
IIH
IIL
IIH
IIL
Frequency Synthesizer Section
Synthesizer frequency range
Differential LO input power across VCO1 and VCO2
Input reference frequency, FREF
Frequency step, F
S
Comparison frequency (600 kHz) spur level
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
CHPO
VIH
VIL
IIH
IIL
IIH
IIL
VIH
VIL
IIH
IIL
1.9
0.75
40
–10
100
–10
1.9
0.75
100
–10
±250
1.0
µA
mA
µA
V
µA
µA
2392.2
–17
–13
9.6
1800
–60
2505.6
–9
MHz
dBm
MHz
kHz
dBc
V
1.9
0.75
60
–10
100
–10
µA
µA
–15
dBc
dBc
kΩ
mV
pp
MHz
µs
V
1.5
–5.0
dB
dBm
Min
Typical
Max
Units
Peak-envelope output power (single-ended):
(3)
High power mode (PS1 = 0, PS2 = 0)
Medium power mode (PS1 = 0, PS2 = 1)
Low power mode (PS1 = 1, PS2 = 0)
Undefined mode (PS1 = 1, PS2 = 1)
IM3
TXD input impedance
TXD input peak-to-peak baseband spread spectrum signal for specified output
peak envelope power
TXD input bandwidth
TXD to RF settle time to within spec value from TXEN
Input high voltage, PS1, PS2, TXEN
Input low voltage, PS1, PS2, TXEN
Input high current, PS1, PS2, TXEN
Input low current, PS1, PS2, TXEN
Input high current TXEN
Input low current TXEN
(TXD input signal 2 tones each 60 mVpp)
LO suppression relative to peak
100646A
1/19/00
Conexant
Conexant Proprietary
9
CONEXANT [ CONEXANT SYSTEMS, INC ]
