TRF2443IPFPR datasheet(5/72 Pages) TI

5 / 72 page

TRF2443

www.ti.com ................................................................................................................................... SLWS217A – SEPTEMBER 2009 – REVISED SEPTEMBER 2009

PIN FUNCTIONS

I/O

DESCRIPTION

NAME

NO.

CLKSPI

SPI clock

CPOUTRX

RX PLL charge-pump output

CPOUTX

TX PLL charge-pump output

DATASPI

SPI data

GND

18, 31,

–

Ground

32, 36,

GNDDIGRX

–

RX PLL digital ground

GNDDIGTX

–

TX PLL digital ground

GNDIFIN

59, 60

–

RX chain ground

GNDPLLRX

–

RX PLL ground

GNDPLLTX

–

TX PLL ground

GNDREFIN

–

Reference clock ground

GNDRX

61, 70,

–

RX chain ground

GNDRX2

–

RX chain ground

GNDTX

79, 80

–

TX chain ground

GNDVCORX

–

RX VCO ground

GNDVCOTX

–

TX VCO ground

GNDXPIC

–

XPIC ground

IFINN

IFVGA2 input: negative terminal

IFINP

IFVGA2 input: positive terminal

IFOUTN

IFVGA1 output: negative terminal

IFOUTP

IFVGA1 output: positive terminal

LDCAP

I/O

PLL lock detector decoupling capacitor pin

LESPI

SPI latch enable

LOCKDET

PLL lock detect output (digital HIGH = locked, LOW = unlocked)

MIXINDN

TX mixer output collector: negative terminal

MIXINDP

TX mixer output collector: positive terminal

PWRDET

Power alarm output (digital HIGH = output power above threshold; LOW = output power below

threshold)

RDBKSPI

SPI data readback

REFIN

PLL reference clock input

RXAGC

RX AGC control input

RXBBCM

RX chain common-mode input

RXBBIN

RX baseband output I: negative terminal

RXBBIP

RX baseband output I: positive terminal

RXBBQN

RX baseband output Q: negative terminal

RXBBQP

RX baseband output Q: positive terminal

RXINN

RX input: negative terminal

RXINP

RX input: positive terminal

RXLOTEST

RX LO test pin

TEMPOUT

Temperature sensor output

TXBBIN

TX baseband I input: negative input

TXBBIP

TX baseband I input: positive input

TXBBQN

TX baseband Q input: negative input

TXBBQP

TX baseband Q input: positive input

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