ML2721 datasheet(25/27 Pages) MICRO-LINEAR

25 / 27 page

ML2721

January, 2000

PRELIMINARY DATASHEET

PRELIMINARY

ELECTRICAL TABLES (continued)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

RECEIVE CHAIN (Continued)

Receive conducted emissions from RF

–50

dBm

input

Receive RF input impedance

900 to 930MHz

TBD

Receive RF mixer image rejection

Measured at 3.5MHz offset

Receive adjacent channels rejection @

–80dBm

2.048MHz channel spacing

1 channel

2 channels

3 or more channels

IF FILTERS

IF filter type, 3dB point

6th order Gaussian to 12dB

IF filter center frequency

After 300µs of realignment

1.024

MHz

IF filter attenuation at 320kHz

Within 10ms of alignment,

referenced to 1024kHz

IF filter attenuation at 1725kHz

Within 10ms of alignment

referenced to 1024kHz

LIMITER, AGC AND FM DEMODULATOR

Recovery from overload

From 0dBm at input

<20

µs

Eb/No

For 12.5% CER

Co-channel rejection,12.5% CER

–80dBm, modulated with 1.536

Mb/s GFSK, BT = 0.5, PRBS data

AM tolerance, 12.5% CER

–80dBm, AM modulated at 100kHz

RSSI Performance

RSSI rise time: <–100dBm to –15dBm into

20pf load, 20% to 80%

the IF mixer

5µs

RSSI fall time: <–15dBm to –100dBm into

20pf load, 20% to 80%

the IF mixer

5µs

RSSI maximum voltage

–15dBm in

2.8

RSSI minimum voltage

No signal

0.05

RSSI sensitivity, mid range

mV/dB

RSSI maximum signal

Sensitivity >50%

–15

dBm

RSSI minimum signal

Sensitivity >50%

–95

dBm

RSSI accuracy

3dB

Receiver Settling Time

From PLLEN low to valid data

<50

µs

Receive Data Filter (Note 2)

Bandwidth

3dB

768

kHz

Attenuation

>10MHz

TRANSMIT RF DRIVER

Driver amplifier output power

Into 50

dBm

Driver amplifier output return loss

900 to 930MHz

ML2721 Datasheet(PDF) 25 Page - Micro Linear Corporation

ML2721 Datasheet(HTML) 25 Page - Micro Linear Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

Datasheet Download

Link URL