MC33594FTAE Freescale Semiconductor, MC33594FTAE Datasheet - Page 8

• Manufacturer Part Number: MC33594FTAE
• Description: RF Receiver UHF RECEIVER
• Manufacturer: Freescale Semiconductor
• Type: Receiverr

Specifications of MC33594FTAE

• Package / Case: LQFP-24
• Operating Frequency: 434 MHz
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DATA MANAGER
CLOCK GENERATOR
© Motorola, Inc., 2002.
This block, only usable when in FSK modulation, has five purposes:
Table 2 details some ROMEO2 features versus the bits DME and SOE values.
Table 3 details some ROMEO2 features versus DME values.
Typical crystal frequencies are:
DME
- ID detection,
- Header recognition,
- Clock recovery,
- Output data and recovered clock on SPI port,
- End-of-Message detection.
- 9.864375MHz for 315MHz band,
- 13.580625MHz for 434MHz band.
0
1
DME
0
1
MOD
x
1
Phase Frequency Detector
MOD
x
1
SOE
0
1
0
1
UHF Oscillator
Table 2: ROMEO2 features versus DME and SOE
÷ 32
control by STROBE pin
control by STROBE pin
Freescale Semiconductor, Inc.
Internal and external
Internal and external
Master when
External control by
External control by
RESETB=1
For More Information On This Product,
Table 3: ROMEO2 features versus DME
SPI status
Disabled
MOTOROLA SEMICONDUCTORS PRODUCTS
Figure 11: Clock generation diagram
STROBE pin
STROBE pin
Timer
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MC33594
Reference
XTAL
315MHz band
434MHz band
8
Recovered clock
kept in Run mode by
Data format
and STROBE pin
Data bytes
Bitstream
No clock
STROBE pin
STROBE pin
ID detection
ROMEO2
& Clock Recovery (FSK only)
IF Filter Reference Clock
÷ 8
÷ 11
Message Detection
Microcontroller
woken-up by
Output
SCLK
MOSI
MOSI
Data clock
Raw data
revision 1.1, 5 February 2002
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