SA58646 Datasheet, PDF (29/42 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
V_OL
I_O(sink)
LOW-level output voltage
output sink current
RX voltage controlled oscillator
V_DATAI = V_CC − 0.4 V
V_DATAI = V_CC − 0.4 V;
V_DATAO = 0.1V_CC
f_VCO
VCO frequency
∆f_VCO/∆V_VCO VCO frequency change to
VCO voltage change ratio
free running
L_ext = 4.7 nH at 890 MHz;
L_ext = 3.9 nH at 935 MHz;
control voltage
ϕ_n
phase noise
V_RXLF = 0.5 V
V_RXLF = 1.5 V
indicative value (cannot be
directly measured
Q_min
minimum quality factor
f_offset = 1 kHz
f_offset = 10 kHz
f_offset = 100 kHz
external inductor quality factor at
920 MHz; L_ext = 3.9 nH
Min
-
-
[1] _-
-
-
[4]
-
-
-
30
Typ
Max Unit
-
0.1V_CC V
50
-
µA
910
-
MHz
50
-
30
-
−58
-
−82
-
−102 -
-
-
MHz/V
MHz/V
dBc/Hz
dBc/Hz
dBc/Hz
[1] This specification will be measured and guaranteed only on the NXP Semiconductors SA58646 board.
[2] 330 Ω matched input and output.
[3] The level on pin RXAI will be higher in RX mode than in TX mode.
[4] Conditions: carrier = 892.3 MHz; L_ext = 4.7 nH (3.9 nH for 935 MHz operation); loop filter: C1 = 3.9 nF; R2 = 6.8 kΩ; C2 = 47 nF (see
application note).
Table 27. Transmitter part
V_CC = 3.3 V; T_amb = 25 °C; unless otherwise specified.
Symbol
Parameter
Conditions
Summator amplifier
Input: pin MODI
V_bias
bias voltage
Output: pin MODO
V_o(p-p)
peak-to-peak output voltage
R_fbck
feedback resistance
TX voltage controlled oscillator
between pins MODI and MODO
f_VCO
VCO frequency
∆f_VCO/∆V_VCO VCO frequency change to
VCO voltage change ratio
free running
control voltage
V_TXLF = 0.5 V
V_TXLF = 1.5 V
modulation voltage
V_MODO = 2.2 V
Min Typ Max Unit
-
-
10
[1] _-
-
-
-
2.2 -
V
94
240 mV
-
-
kΩ
910 -
MHz
50
-
25
-
MHz/V
MHz/V
530 -
kHz/V
SA58646_1
Product data sheet
Rev. 01 — 8 February 2007
© NXP B.V. 2007. All rights reserved.
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