MC33493DTBE Freescale Semiconductor, MC33493DTBE Datasheet - Page 15

• Manufacturer Part Number: MC33493DTBE
• Description: IC RF TRANSMITTER UHF 14-TSSOP
• Manufacturer: Freescale Semiconductor

Specifications of MC33493DTBE

• Frequency: 315 ~ 434MHz, 868 ~ 928MHz
• Applications: General Data Transfer
• Modulation Or Protocol: FSK, OOK
• Data Rate - Maximum: 10 kbps
• Power - Output: -3dBm
• Current - Transmitting: 11.6mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 1.9 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 14-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -

For 868 MHz band application, the input pin BAND must be wired to ground. See component description on
Table
Examples of crystal reference are given below (see characteristics in
Freescale Semiconductor
Vbat
•
•
7.
B1
at 315 MHz band (f
at 434/868 MHz bands (f
and NDK NX1255GA.
1
C6 value equals recommended crystal load capacitance reduced by the PCB stray capacitances.
Component
Figure 12. Application Schematic for OOK Modulation, 434 MHz Frequency Band
R2
C6
C7
C8
Y1
Vbat
10
1
2
3
4
5
6
7
8
9
750
LED1
R1
MC68HC908RK2
PTA0
PTB0/MCLK
PTB1
PTB2/TCH0
PTB4/TCH1
PTB5
PTB3/TCLK
OSC1
OSC2
VSS
PLL Tuned UHF Transmitter for Data Transfer Applications, Rev. 1.7
reference
Table 6. External Components Description for OOK
reference
Power supply decoupling
PTA1/KBD1
PTA2/KBD2
PTA3/KBD3
PTA4/KBD4
PTA5/KBD5
PTA6/KBD6
RF output level setting
Crystal load capacitor
= 9.84375 MHz, –40 °C < T
PTA7
IRQ1
VDD
RST
U2
resistor (R
see
capacitors
= 13.56 MHz, –40 °C < T
Function
2.2nF
C2
20
19
18
17
16
15
14
13
12
11
Crystal,
SW1
Table 7
2.2nF
C3
Vbat
100nF
C10
SW1a
ext
2.2nF
)
C4
SW2
2.2nF
C5
Complete Application Schematic and PCB for OOK Modulation
SW2a
A
13.56MHz
C6 8.2pF
< 85 °C): NDK LN-G102-950,
A
Table
< 125 °C): NDK NX8045GB/CSJ S1-40125-8050-12
434 MHz band: 13.56
868 MHz band: 13.56
315 MHz band: 9.84
12K
R2
Y1
7) for different application bands:
Value
8.2
100
12
22
1
1
2
3
4
5
6
7
U1
DATACLK
DATA
BAND
GND
XTAL1
XTAL0
REXT
MC33493
ENABLE
GNDRF
RFOUT
MODE
CFSK
VCC
VCC
14
13
12
11
10
9
8
MHz
MHz
MHz
Unit
kΩ
pF
nF
pF
C8
Table 6
100pF
Vbat
C7
and
22nF
C9
2.2pF
15