Z87200 Datasheet, PDF (4/54 Pages) Zilog, Inc. – Spread-Spectrum Transceiver

Z87200
Spread-Spectrum Transceiver
GENERAL DESCRIPTION (Continued)
Zilog
TXBITPLS
TXTRKPLS
TXIN
Input Data
Processor
Differential
Encoder
QPSK
Modulator
TXIFOUT_7-0
Tx Overlay
Code
Generator
TXMCHP
TXIFCLK
Tx Clock
Generator
Bit Clock
Symbol Clock
Chip Clock
TXIFCLK
Tx PN Code
Generators
TXIOUT
TXQOUT
TXCHPPLS
TXACQPLS
MTXEN
MNCOEN
MRXEN
RXMABRT
MFLD
/CSEL
/WR
/RESET
DATA_7-0
ADDR_6-0
/OEN
RXOUT
RXQOUT
RXIOUT
/RXDRDY
RXSYMPLS
Control
and MPU
Interface
Frequency
Control
Register
NCO
SIN
COS
Rx Overlay
Code
Generator
Output Data
Processor
Frequency
Discriminator
and Loop Filter
Dot
Cross
Differential
Demodulator
Symbol
Tracking
Processor
Power
Detector
Rx PN Code
Registers
Matched
Filter
Down
Converter
Corrected Bit Clock
Corrected Symbol Clock
2xChip Clock
Symbol Clock
RXIFCLK
RX Clock
Generator
TXACTIVE
RXACTIVE
TXTEST
RXTEST_7-0
RXIIN_7-0
RXQIN_7-0
RXIFCLK
RXMSMPL
RXMDET
Figure 1. Z87200 Block Diagram
4-4
DS96WRL0400