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參數(shù)資料
| 型號： | MC33493DTB |
| 廠商： | MOTOROLA INC |
| 元件分類： | 消費家電 |
| 英文描述： | PLL tuned UHF Transmitter for Data Transfer Applications |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| 封裝： | TSSOP-14 |
| 文件頁數(shù)： | 10/20頁 |
| 文件大小： | 595K |
| 代理商： | MC33493DTB |
10
MC33493 Technical Data
MOTOROLA
RF OUTPUT SPECTRUM
RF OUTPUT SPECTRUM
Following are spectrums of transmitter carrier, measured in conduction mode. Three different spans have been
used. The 5MHz span spectrum (figure ) shows phase noise response close to the RF carrier, and the noise
suppression within the PLL loop bandwidth. The 50MHz span spectrum (figure 6) shows both phase noise and
reference spurious. Finally figure 7 shows second and third harmonics of carrier. All these spectrums are
measured in OOK modulation, at DATA=1.
Figure 8 shows spectrum in case of FSK modulation, with 45kHz deviation, at 4kbit/s data rate.
3
Microcontroller Interfaces
3.1
Input Low Voltage
Pins BAND, MODE, ENABLE, DATA
0
-
0.3 x
V
CC
V
3.2
Input High Voltage
0.7 x
V
CC
-
-
-
-
V
CC
V
3.3
3.4
3.5
Input Hysteresis Voltage
Input Current
ENABLE Pull Down Resistor
-
-
120
100
-
0.25 x
V
CC
mV
nA
k
Pins BAND, MODE, DATA = 1
180
3.6
DATACLK Output Low Voltage
C
load
= 2pF
0
-
V
3.7
DATACLK Output High Voltage
0.75 x
V
CC
-
-
V
CC
V
3.8
3.9
DATACLK Rising Time
DATACLK Falling Time
DATACLK Settling Time,
t
DATACLK_settling
C
load
= 2pF, measured from 20% to
80% of the voltage swing
250
150
500
400
ns
ns
-
3.10
45% < Duty Cycle f
DATACLK
< 55%
-
800
2000
μs
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, voltage range V
cc
=[V
shutdown
;3.6V], temperature range T
A
=[-40°C;+125°C],
R
ext
=12k
+/-5%, RF output frequency f
carrier
=433.92MHz, reference frequency f
reference
=13.560MHz, output
load R
L
=50
+/-1% (figure 9). Values refer to the circuit shown in the recommended application schematics:
figure 12 (14) for OOK (FSK) modulation. Typical values reflect average measurement at V
CC
=3V, T
A
=25
°
C.
Parameter
Test Conditions, Comments
Limits
Unit
Min.
Typ.
Max.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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