LND-PLL901 Ver la hoja de datos (PDF) - Linear Dimensions Semiconductor

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componentes Descripción

Fabricante

LND-PLL901

IF QUADRTURE TRANSCEIVER

Linear Dimensions Semiconductor 

IF QUADRTURE TRANSCEIVER PROPOSED DATA SHEET

Operating

Characteristics

(continued)

Operating Conditions

Symbol Parameter

Vcc

Power Supply Voltage

Top

Operating Temperature Range

Min.

Typ.

Max.

Unit

4.75

5

5.25

V

0

70+

°C

Conditions

D.C. Characteristics

Symbol Parameter

Min.

Typ.

Max.

Unit Conditions

Icc1

Supply Current

Receive Mode

57

77.5

mA All, no external ADC

connected

Icc2

Supply Current

52.5

67.5

mA All, see note 1

Transmit Mode

Icc3

Supply Current

16.5

20.5

mA All

PLL Mode

Icc4

Supply Current

100

µA All

Standby Mode

Vih

Logic Inputs

2.4

Vcc + 0.5

V

High Level

Vil

Logic Inputs

Vee - 0.5

0.8

V

Low Level

LAVH

Loop Amplifier High

Vcc -1.1

V

lout = 10 µA

o/p Voltage

LAVL

Loop Amplifier Low

1.1

V

lout = 10 µA

o/p Voltage

RLT

ADC Reference -

2.35

2.5

2.65

V

top of ladder

RLB

ADC Reference -

1.15

1.3

1.45

V

bottom of ladder

ADC Ladder Voltage

1.1

1.2

1.3

V

RDIFF (Voltage difference between top

and bottom of ladder)

REFI

TxDAC Reference Current

0.75

1

1.25

V

RTI

ADC Reference - Source

6

mA

Current (TREFI/TREFQ)

RBI

ADC Reference - Sink Current

0.8

mA see note 2

(BREFI/BREFQ)

Notes:

1 Includes 2 mA (nomial) DAC reference current but excludes any current sourceconnected tt

to the TX baseband inputs.

2 To conserve power the on-chip current sink capability s nominally 1 mA (800 µA maximum)

while the reference for the top of the ladder has the capability to source up to 6 mA. To use

external ADC’s that have a ladder resistance requiring a greater current sink capability than

this , an external pull down resistor must be placed between BREFI, BREFQ and ground.

Linear Dimensions, Inc. 445 East Ohio Street, Chicago, IL 60611 p 312.3211810 f 312.321.1830

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