SA58646 Datasheet, PDF (27/42 Pages) NXP Semiconductors – UHF 900 MHz transceiver IC

NXP Semiconductors
SA58646
UHF 900 MHz transceiver IC
Table 26. Receiver part …continued
V_CC = 3.3 V; T_amb = 25 °C; unless otherwise specified.
Symbol
Parameter
Conditions
Output: pin MIXO
R_L
load resistance
indicative value of IF resistive
output load
C_L
load capacitance
indicative value of IF capacitive
output load
IF amplifier section (f_o = 10.7 MHz)
G
gain
SFS = 0
SFS = 1; measured at amplifier
output
first IF amplifier
second IF amplifier
NF
noise figure
IF amplifier
first IF amplifier
second IF amplifier
PLL demodulator (f_o = 10.7 MHz; ∆f = ±25 kHz; f_mod = 1 kHz)
B_{−3dB(demod)} demodulator −3 dB
bandwidth
DEM_FIL = 0; loop filter: 4.7 kΩ,
1.8 nF and 150 pF
DEM_FIL =1; loop filter: 15 kΩ,
150 pF and 12 pF
VCO
f_VCO
VCO frequency
VCO center frequency (free
running); open loop; all
conditions
∆f
frequency deviation
∆f_VCO/∆V_VCO VCO frequency change to after calibration
VCO voltage change ratio
f_VCO(step)
N_{step(f_VCO)}
VCO frequency step
number of VCO frequency
steps
Output: pin DETO
R_L
V_o(RMS)
load resistance
RMS output voltage
TX mode; R_L = 10 kΩ; amplifier
gain G = 10
V_O
output voltage
adjust with microcontroller
Min
-
-
[2] _-
[2]
-
-
-
[2] _-
[2] _-
-
-
7.0
-
-
-
-
5
[3] _-
1.2
Typ
Max Unit
330
-
Ω
-
3
pF
43
-
dB
22.5 -
dB
25
-
dB
7.5
-
dB
7
-
dB
14
-
dB
7
-
kHz
100
-
kHz
10.7 15.0 MHz
-
±75
kHz
760
-
kHz/V
200
-
kHz
32
-
-
-
kΩ
100
350
mV
1.4
1.6
V
SA58646_1
Product data sheet
Rev. 01 — 8 February 2007
© NXP B.V. 2007. All rights reserved.
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