ML2713CH Ver la hoja de datos (PDF) - Micro Linear Corporation

Número de pieza

componentes Descripción

Fabricante

ML2713CH

Radio IF Transceiver

Micro Linear Corporation 

PRELIMINARY

ML2713

PIN DESCRIPTIONS (CONTINUED)

Pin # Signal Name I/O Type

Description

FILTERS - RECEIVE (continued)

38

DISCO

40

DFI1

41

DFO1

42

DFI2

43

DFO2

44

VDC

O (ANLG)

I (ANLG)

O(ANLG)

I (ANLG)

O (ANLG)

I/O (ANLG)

Discriminator voltage output. This emitter follower provides a nominal

drive capability of 100mA and a 200W source impedance

Stage 1 data filter input. Two on-chip operational amplifiers, Stage 1

and Stage 2, can be configured to make a 5th order filter with the use of

external resistors and capacitors

Stage 1 data filter output. The nominal output drive capability is

100mA

Stage 2 data filter input

Stage 2 data filter output. The nominal output drive capability is 100mA

DC time constant restore. An external capacitor sets the acquisition

time constant of the DC receiver restoration circuits that feed the on-

chip receive comparator. In the acquisition mode the nominal

impedance is 15kW. In hold mode the impedance is much higher, with

a nominal leakage current less than 2nA. The SLICE input determines if

VDC is in hold mode or in acquisition mode. This circuit ensures that

the received signal is centered on the on-chip D/A converter by

removing DC drift and transmitter and receiver frequency errors

FILTERS – TRANSMIT AND RECEIVE

19

BPI

20

BPIB

I(FLTR)

29

BPOB

30

BPO

O(FLTR)

2IF filter input. These pins connect to the receive image reject down-

convert mixer in the receive mode, to the 6-bit D/A converter in the

transmit mode, and to the 2LO input in the filter align mode. These

pins have a nominal differential impedance of 450 ohms set by on-chip

resistances

2IF filter output. These pins connect to the discriminator 0/90 phase

shift circuit in the receive mode and alignment modes, and the transmit

image reject up-convert mixer in the transmit mode

NON-CONNNECTED PINS

11, 12, 36, 48 NC

No connect

These pins should be left open

6

PRELIMINARY DATASHEET January, 2000

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