7 of 24
SiW3000
60 0049 R01Drf SiW3000 Radio Processor DS
Pin Description
The following table provides detailed listings of pin descriptions arranged by functional groupings.
Name
Pad Type
Ball
Description
Radio (Power from VCC)
RF_IN
Analog
A2
RF signal input into the receiver.
RF_OUT
Analog
A4
RF signal output from the transmitter.
VTUNE
Analog
A6
Pin for reference PLL loop filter, only used if reference frequency is not
integer multiples of 4 MHz.
CHG_PUMP
Analog
F1
Pin for RF loop filter.
XTAL_N
Analog
A7
System clock crystal negative input. If a reference clock is used, this pin
should be left unconnected.
XTAL_P/CLK
Analog
B7
System clock crystal positive input or reference clock input.
IDAC
Analog
B1
Power control to external power amplifier. This output provides a variable
current source that can be used to control the external power amp. Leave
unconnected if not used.
VREFP_CAP
Analog
C1
Decoupling capacitor for internal A/D converter voltage reference.
VREFN_CAP
Analog
C2
Decoupling capacitor for internal A/D converter voltage reference.
Low Power Oscillator and Reset (Power from VDD_P)
CLK32K_IN
Analog
K10
For crystal or external clock input (32.768 kHz).
CLK32K_OUT
Analog
L11
Drive for crystal.
RESET_N
Analog
C6
System level reset (active low).
Power Control Interface (Power from VDD_P)
PWR_REG_EN/PIO[8]
CMOS bi-directional
G1
Enable for an external voltage regulator. Programmable active high or
active low. Also used as PIO[8], which is the default mode until the appro-
priate configuration bit is set. Tie to ground if not used.
TX_RX_SWITCH
CMOS output
J9
Output signal used to indicate the current state of the radio. This could be
used as a direction control for an external power amplifier.The polarity is
programmable with the default set as:
Low = Transmit mode
High = Receive mode
Table 3. SiW3000 Radio Processor Pin List
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
