TH71071 Datasheet, PDF (6/10 Pages) List of Unclassifed Manufacturers – 315/433MHz ASK Transmitter / LO Source

TH71071
315/433MHz
ASK Transmitter / LO Source
AC Characteristics
all parameters under normal operating conditions, unless otherwise stated;
typical values at T_a = 23 °C and V_cc = 3 V;
ENTX = 1, V_PS = 1.1V, f_c = 433.6 MHz, test circuit shown in Fig. 2
Parameter
Symbol
Condition
Min
Output power
FM deviation
Modulation frequency FM
Data rate ASK
Reference spurs
Harmonic content
Spurious output signal
Phase noise
VCO gain
Charge pump current
Start-up time
P_o
∆f_FM
f_mod
R_ASK
P_ref
P_harm
P_off
PN
K_VCO
I_CP
t_on
adjustable with
varactor and V_FM
NRZ
@ f_c ± f_ref
@ 2f_c , 3f_c , 4f_c
V_PS ≤ 0.1V
@ f_c ± 500kHz
from ”all OFF” to any
other mode
Typ
-1
±6
5
40
-44
-40
-60
-87
200
±260
Max
Unit
dBm
kHz
kHz
kbit/s
dBm
dBm
dBm
dBc/Hz
MHz/V
µA
0.9
ms
Output Power Selection
typical values at T_a = 23 °C and V_cc = 3 V:
ENTX = 1, f_c = 433.6 MHz, test circuit shown in Fig. 2
R1 / kΩ
0
7.5
11
R2 / kΩ
4.7
4.7
V_PS / V
≥2
1.1
0.9
I_cc / mA
P_o / dBm
P_harm / dBm
11.5
2
≤-40
8.6
-1
≤-40
7.3
-4
≤-40
15
4.7
0.7
6.2
-7
≤-45
24
4.7
0.5
5.3
-10
≤-45
If the transmitter is operated at any supply voltage V_cc,
the values for R₁ and R₂ can be calculated as allows:
R₁
= R₂
•

V_cc
V_PS
− 1_{}
Crystal Parameter
Parameter
Crystal frequency
Load capacitance
Static capacitance
Resonance resistance
Spurious response
Symbol
f_crystal
C_load
C₀
R_m
a_spur
Condition
fundamental mode, AT
Min
9.69
10
Max
14
15
7
60
-10
43
4.7
0.3
4.8
-12
≤-50
Unit
MHz
pF
pF
Ω
dB
3901071071
Rev. 004
Page 6 of 10
Data Sheet
Dec. 2001