ML2724 Просмотр технического описания (PDF) - Micro Linear Corporation

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производитель

ML2724

2.4GHz Low-IF 1.5Mbps FSK Transceiver

Micro Linear Corporation 

ML2724

PIN SIGNAL

NAME

24 VCCA

I/O

PWR

25 GNDDMD

27 RVQMIF

GND

PWR

29 RVDMD

PWR

31 VDD

PWR

TRANSMIT/RECEIVE

17 RXI

I (Analog)

FUNCTION

DC power supply Input to Voltage

N/A

Regulators and unregulated loads: 2.7 to

3.8V. VCCA is the main (or master)

analog VCC pin. There must be

capacitors to ground from this pin to

decouple (bypass) supply noise.

DC ground to IF, Demodulator, and Data N/A

Slicer circuits.

DC power supply decoupling point for

N/A

Quadrature Mixer and IF filter circuits. A

220nF capacitor must be tied between

this pin and ground to decouple (bypass)

noise and to stabilize the regulator.

DC power supply decoupling point for IF, N/A

Demodulator, and Data Slicer circuits. A

220nF capacitor must be tied between

this pin and ground to decouple (bypass)

noise and to stabilize the regulator.

DC power supply input to the interface

N/A

logic and control registers. This supply is

not connected internally to any other

supply pin, but its voltage must be less

than or equal to the VCCA supply and

greater than 2.7V. A capacitor must be

tied between this pin and ground to

decouple (bypass) noise.

Receive RF Input. Nominal impedance at

2445MHz is 2.6-j2.6 with a simple

matching network required for optimum

noise figure. This input connects to the

base of an NPN transistor and should be

AC coupled.

RXI 17

DIAGRAM

VCCA

24

0.7V

4k

GNDRF 18

VSS (PIN 8)

VCCA (PIN 24)

8

VSS

DS2724-F-03

FINAL DATASHEET

DECEMBER 2005 8

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