HFA3863 Просмотр технического описания (PDF) - Intersil

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HFA3863

Direct Sequence Spread Spectrum Baseband Processor

Intersil 

RX_IF_DET (19)

RX_IF_AGC (34)

RX-RF-AGC (38)

ANT SEL (39, 40)

RXI (10, 11)

RXQ (13, 14)

ANTSEL (40)

ANTSEL (39)

VDD (ANALOG)

(12, 17, 22, 31)

HFA3863

GND (ANALOG)

(9, 15, 20, 25, 28)

VDD (DIGITAL)

(2, 8, 37, 41, 57)

GND (DIGITAL)

(1, 7, 36, 43, 56)

6-BIT

DAC

DIVERSITY

CONTROL

AGC

CONTROL

6-BIT

A/D

6

6-BIT

A/D 6

CLEAR CHANNEL

ASSESSMENT/

SIGNAL QUALITY

CMF

TRAINING

8

PEAK

EXTRACT.

8

BIT

SYNC

DPSK

DEMOD

RX_DATA

DESCRAMBLER

(60) CCA

(53) RXD

(52) RXCLK

SYMBOL

TRACKING

COHERENT

TIMING

INTEGRATOR

NCO

EQUAL.

BIAS

ADDER

CCK

CORREL

SYMBOL

DECISION

LOOP

FILTER

DECISION FEEDBACK

EQUALIZER

ANTENNA

SWITCH

CONTROL

RECEIVE

STATE

MACHINE

TIMING

GENERATOR

MCLK

6-BIT

DAC

6-BIT

DAC

TEST PORT

(54) MD_RDY

(3) SD

(4) SCLK

(64) SDI

(5) R/W

(6) CS

TXI (23, 24)

TXQ (29, 30)

(63)

(61)

(42)

RESET RX_PE MCLK

(44) (45) (46) (47) (48) (49) (50) (51)

FIGURE 13. DSSS BASEBAND PROCESSOR, RECEIVE SECTION

4-18

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