RF109 Просмотр технического описания (PDF) - Conexant Systems
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RF109 Datasheet PDF : 12 Pages
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RF109
2400 MHz Digital Spread Spectrum Transceiver
Specifications
Table 3. Electrical Specifications(1) (1 of 3)
Note: TA = 25oC, VCC = 3.6 V, fLO= 2449.8 MHz
Parameter
Min
Receiver Section
RX voltage gain:
LNA high-gain mode (LNAATTN = 0)
GC = 1.35 V
94.5
GC = 1.65 V
GC = 1.9 V
LNA gain step
delta Gain LNAATTN = 0/1
RX gain variation vs. frequency 2400 MHz < fLO < 2483.5 MHz
–1.5
RX SSB noise figure:
High-gain mode, GC = 1.35 V
RX input IP3:
LNA high-gain mode, GC = 1.9 V
LNA low-gain mode, GC = 1.9 V
RX input P1dB:
LNA high-gain mode (LNAATTN = 0)
GC = 1.35 V
GC = 1.65 V
GC = 1.9 V
LNA low-gain mode (LNAATTN = 1)
GC = 1.9 V
I/Q phase imbalance
I/Q amplitude imbalance
Input high voltage, LNAATTN, RXEN
VIH
1.9
Input low voltage, LNAATTN, RXEN
VIL
Input high current, RXEN
IIH
Input low current , RXEN
IIL
–10
Input high current, LNAATTN
IIH
Input low current, LNAATTN
IIL
–10
GC Iin
–500
Baseband amplifier gain control range (GC = 1.35–1.9 V)
GC input voltage range
1.35
Baseband amplifier gain control sensitivity
GC = 1.35–1.9 V
GC = 1.35 V
GC = 1.65 V
GC = 1.90 V
RX P1dB @ 3.9 MHz offset
LNA high gain, GC=1.9V
Baseband output load capacitance
Baseband LPF 3 dB bandwidth (Rgmc = 825 Ω)
650
Baseband selectivity @ 3.9 MHz
60
Baseband common mode output
1.0
Baseband I,Q DC offset
RXI, RXQ DC and gain settle time(2) from initial RXEN input
at TDD rate > 250 Hz
Baseband HPF 3dB bandwidth (servo capacitors = 82 nF)
13
Baseband output voltage swing (peak differential)
Baseband output SNR (GC = 1.9 V)
Typical
100
76
37
27
0.5
9
–33
–3
–90.5
–65
–36
–10
125
63
1.65
0.14
0.01
0.15
0.13
–24
20
820
70
Vcc – 1.55
50
22
250
31
Max
105.5
2.0
±7
3
0.75
200
10
60
500
1.9
0.17
50
970
Vcc – 1.0
25
100
29
Units
dB
dB
dB
dB
dBm
dBm
deg
dB
V
µA
µA
µA
dB
V
dB/mV
dBm
pF
kHz
dB
V
mV
µs
kHz
mVp
dB
8
Conexant
100646A
Conexant Proprietary
1/19/00
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