HFA3860B
VDD (ANALOG)
(10, 18, 20)
GND (ANALOG)
(11, 15, 19)
VDD (DIGITAL)
(7, 21, 29, 42)
GND (DIGITAL)
(6, 22, 31, 41)
IIN (12)
QIN (13)
VREFP (16)
VREFN (17)
HIGH RATE (MBOK/CCK) MODULATOR
SIGN BITS
CCK or
WALSH GEN
S.I.P.O.
AND
DIFF.
ENCODER
CLOCK ENABLE
LOGIC
(36) RXCLK
(32) CCA
B/Q
MUX
RSSI (14)
ANTSEL (26)
ANTSEL (27)
IOUT (48)
QOUT (47)
XOR
XOR
DPSK MODULATOR
I CLK
DIFFERENTIAL
ENCODER
b(t)
b(t-1)
Z -1
XOR
Q
MUX CLK
FOR DQPSK
I CH ONLY FOR DBPSK
11-BIT PN AT
CHIP RATE
SPREADER
TIMING
GENERATOR
MCLK
TX_DATA
SCRAMBLER
TEST PORT
(33) RX_PE
(35) RXD
(34) MD_RDY
(5) TX_RDY
(4) TXCLK
(3) TXD
(2) TX_PE
(25) SD
(24) SCLK
(23) SDI
(8) R/W
(9) CS
(28)
RESET
(30)
MCLK
(1) (37) (38) (39) (40) (43) (44) (45) (46)
TEST_CK
FIGURE 11. DSSS BASEBAND PROCESSOR, TRANSMIT SECTION
4-20