MC33594FTAE Freescale Semiconductor, MC33594FTAE Datasheet - Page 16

• 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

If Header or its complement is detected, the state machine advances to state 10. If not, it will stay in state 9 as
long as STROBE is high.
If Header has been received, data and clock signals are output on the SPI port. If the complement of Header has
been received, output data are complemented too. At any time a low level applied on STROBE sets the circuit
into state 6, after the current byte is fully transmitted.
If data are received after a End of Message they are output on the MOSI pin without clock recovery.
At any time, a low level applied on RESETB for more than one Ts forces the state machine to state 1. When the
transition condition from one state to the next one is fulfilled, the transition time is one Ts except reaching state 6.
The transition time for reaching state 6 is 2
low when in state 10).
STROBE OSCILLATOR
resistance R2 (refer to figure 17 and table 11). When a threshold is reached or exceeded C5 is discharged and
the cycle restarts. The period is: T
V
the STROBE pin is set to V
current which must be supplied.
© Motorola, Inc., 2002.
CC
State 9:
State 10:
State 11:
For all states:
The Strobe Oscillator is a relaxation oscillator in which an external capacitor C5 is charged by an external
The circuit may be forced into states 0b, 3, 7 etc. (see State Machine Diagrams) by setting the STROBE pin to
. As V
CC
is above the oscillator threshold voltage referred to in the previous paragraph, the condition in which
CC
is internally detected and the oscillator pull-down circuitry disabled to limit the
Freescale Semiconductor, Inc.
Strobe
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=0.12
×
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Ts (+ time needed to shift out a full byte if STROBE pin is forced to
×
R2
MC33594
×
C5.
16
revision 1.1, 5 February 2002