RF109
2400 MHz Digital Spread Spectrum Transceiver
Specifications
Table 3. Electrical Specifications
(1)
(1 of 3)
Note: T
A
= 25
o
C, V
CC
= 3.6 V, f
LO
= 2449.8 MHz
Parameter
Receiver Section
RX voltage gain:
LNA high-gain mode (LNAATTN = 0)
GC = 1.35 V
GC = 1.65 V
GC = 1.9 V
delta Gain LNAATTN = 0/1
2400 MHz
<
f
LO
<
2483.5 MHz
Min
Typical
Max
Units
94.5
100
76
37
27
0.5
9
–33
–3
–90.5
–65
–36
–10
105.5
dB
LNA gain step
RX SSB noise figure:
RX input IP3:
RX input P1dB:
dB
2.0
dB
dB
dBm
RX gain variation vs. frequency
–1.5
High-gain mode, GC = 1.35 V
LNA high-gain mode, GC = 1.9 V
LNA low-gain mode, GC = 1.9 V
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
dBm
I/Q phase imbalance
I/Q amplitude imbalance
Input high voltage, LNAATTN, RXEN
Input low voltage, LNAATTN, RXEN
Input high current, RXEN
Input low current , RXEN
Input high current, LNAATTN
Input low current, LNAATTN
GC Iin
Baseband amplifier gain control range (GC = 1.35–1.9 V)
GC input voltage range
Baseband amplifier gain control sensitivity
GC = 1.35–1.9 V
GC = 1.35 V
GC = 1.65 V
GC = 1.90 V
LNA high gain, GC=1.9V
650
60
1.0
1.35
VIH
VIL
IIH
IIL
IIH
IIL
–10
–500
63
1.65
0.14
0.01
0.15
0.13
–24
20
820
70
Vcc – 1.55
50
13
22
250
31
–10
125
1.9
±7
3
0.75
200
10
60
500
1.9
0.17
deg
dB
V
µA
µA
µA
dB
V
dB/mV
RX P1dB @ 3.9 MHz offset
Baseband output load capacitance
Baseband LPF 3 dB bandwidth (Rgmc = 825
Ω)
Baseband selectivity @ 3.9 MHz
Baseband common mode output
Baseband I,Q DC offset
dBm
50
970
Vcc – 1.0
25
100
29
pF
kHz
dB
V
mV
µs
kHz
mVp
dB
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)
Baseband output voltage swing (peak differential)
Baseband output SNR (GC = 1.9 V)
8
Conexant
Conexant Proprietary
100646A
1/19/00
CONEXANT [ CONEXANT SYSTEMS, INC ]
