MC33591 Datasheet, PDF(21/28 Page) Motorola, Inc – PLL Tuned UHF Receiver for Data Transfer Applications

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MC33591 Datasheet, PDF (21/28 Pages) Motorola, Inc – PLL Tuned UHF Receiver for Data Transfer Applications

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Freescale Semiconductor, Inc.

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, VCC=[4.5V;5.5V], operating temperature range TA=[-40Â°C;+85Â°C]. Values refer to

the circuit in recommended in the application schematic (see figure 17), unless otherwise specified. Typical

values reflect average measurement at VCC=5V, TA=25Â°C, using MC33591.

Parameter

Test Conditions, Comments

Limits

Unit

Min. Typ. Max.

Note 3: Sensitivity measurement method with Data Manager disabled (DME=0)

A continuous Manchester coded 0 sequence (4.8kBd, OOK modulation depth: 100%, FSK modulation

deviation: 35kHz, 50% duty cycle) is applied at RFIN. The mean value of the frequency of the output signal on

MOSI is measured over 200 cycles. The sensitivity is defined as the lowest input level during an NRZ one

corresponding to a mean output frequency deviation lower than 5% of the expected data rate.

Note 4: Sensitivity measurement method with Data Manager enabled (DME=1, HE=0)

A complete telegram (4.8kBd, OOK modulation depth: 100%, FSK modulation deviation: 35kHz, 50% duty

cycle) including preamble, ID word and data (80 random bits without Header) is applied at RFIN. The sensitivity

is defined as the lowest input level during an NRZ one necessary to achieve 0 Bit Error Rate (BER).

Note 5: 50W matching networks

434MHz band: C1=1.5pF, C2=100pF, L1=68nH.

Tolerances: +/-10% for capacitances; +/-2% for inductor

Note 6: Sensitivity measurement conditions

* OOK & FSK Modulation (+/-35kHz) at 4.8kBd (50% duty cycle)

* 315MHz & 434MHz bands (500kHz IF bandwidth)

* Performances include receiver crystal tolerance of +/-80ppm over temperature range i.e. +/-35kHz @

434MHz

Note 7: FSK variation measurement conditions

A frequency modulated signal, carrier = 660kHz with Â±35kHz deviation is injected at MIXOUT

Measure the DMDAT voltage swing at 660kHz, this will be DMDAT(Ref) in actual temperature/Vcc conditions

Measure the DMDAT voltage swing from Freq[1] = 660kHz - 120kHz to Freq[2] = 660kHz + 120kHz

DMDAT(Ref) / DMDAT(Freq[x]) is measured over the whole range Freq[1] to Freq[2]

MOTOROLA

MC33591 Technical Data

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