MC33493DTBR2 Freescale Semiconductor, MC33493DTBR2 Datasheet - Page 13

• Manufacturer Part Number: MC33493DTBR2
• Description: IC RF TRANSMITTER UHF 14-TSSOP
• Manufacturer: Freescale Semiconductor

Specifications of MC33493DTBR2

• 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: Contains lead / RoHS non-compliant
• Features: -
• Memory Size: -
• Other names: MC33493DTBR2TR

11
The RF output levels given in
RFOUT pin, as shown below in
The configuration shown in
schematic on
components for 434 MHz frequency band.
Freescale Semiconductor
(a)
(b)
Output Power Measurement
Figure
10(b) gives the equivalent circuit of the RFOUT pin and the DC bias impeder as well as matching network
Figure 10. Output Model and Matching Network for 434 MHz Band
PLL Tuned UHF Transmitter for Data Transfer Applications, Rev. 1.7
Figure
1.5 pF
Section 9, “Electrical
RFOUT pin
C
Figure 9. Output Power Measurement Configurations
Figure
0
10(a) provides better efficiency in terms of output power and harmonics rejection. The
VCC
RFOUT
250 Ω
9. This wideband coupling method gives results independent of the application.
R
0
VCC
RFOUT
Impeder: TDK MMZ1608Y102CTA00
Characteristics,” are measured with a 50 Ω load directly connected to the
Matching
Network
39 nH
Matching
Network
100 pF
L
Impeder: TDK MMZ1608Y102CTA00
1
RF output
Impeder
R
RF output
i
3 kΩ
R
L
= 50 W
R
L
330pF
=50 Ω
C
3
Output Power Measurement
Load
R
L
50 Ω
13