MICRF213 Ver la hoja de datos (PDF) - Micrel

Número de pieza

componentes Descripción

Fabricante

MICRF213

3.3V, QwikRadio® 315MHz Receiver

Micrel 

Micrel, Inc.

MICRF213

Symbol Parameter

Condition

Min

Typ

Max Units

Demodulator

CTH Source Impedance

CTH Leakage Current

Demodulator Filter

Bandwidth @ 315MHz

(Programmable, see

application section)

Digital / Control Functions

FREFOSC = 9.81563MHz

TA = 25ºC

TA = +105ºC

SEL0=0, SEL1=0

SEL0=1, SEL1=0

SEL0=0, SEL1=1

SEL0=1, SEL1=1

165

kΩ

±2

nA

±800

nA

1180

2360

Hz

4720

9400

DO pin output current

Output rise and fall times

As output

source @ 0.8Vdd

sink @ 0.2Vdd

CI = 15pF, pin DO, 10-90%

260

µA

600

2

µsec

RSSI

RSSI DC Output Voltage

Range

RSSI response slope

-110dBm to -50dBm

-110dBm to -50dBm

0.4 – 1.9

25

V

mV/dB

RSSI Output Current

400

µA

RSSI Output Impedance ±15

200

Ω

RSSI Response Time

50% data duty cycle, input power to Antenna = -

20 dBm

0.3

Sec

Notes:

1. Exceeding the absolute maximum rating may damage the device.

2. The device is not guaranteed to function outside of its operating rating.

3. Device is ESD sensitive. Use appropriate ESD precautions. Exceeding the absolute maximum rating may damage the device.

4.

Sensitivity is defined as the average signal level measured at the input necessary to achieve 10-2 BER (bit error rate). The input signal is

defined as a return-to-zero (RZ) waveform with 50% average duty cycle (Manchester encoded) at a data rate of 1kbps.

5. When data burst does not contain preamble, duty cycle is defined as total duty cycle, including any “quiet” time between data bursts. When

data bursts contain preamble sufficient to charge the slice level on capacitor CTH, then duty cycle is the effective duty cycle of the burst alone.

[For example, 100msec burst with 50% duty cycle, and 100msec “quiet” time between bursts. If burst includes preamble, duty cycle is

Ton/(Ton+Toff) = 50%; without preamble, duty cycle is Ton/(Ton+ Toff + Tquiet) = 50msec/(200msec)=25%. Ton is the (Average number of

1’s/burst) x bit time, and Toff = Tburst -Ton.)

May 2007

4

M9999-052307-A

(408) 944-0800

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