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SIW1711 データシート(PDF) 3 Page - RF Micro Devices

部品番号 SIW1711
部品情報  BLUETOOTH RADIO MODEM
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メーカー  RFMD [RF Micro Devices]
ホームページ  http://www.rfmd.com
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SiW1711
60 0047 R00Grf SiW1711 Radio Modem IC DS
Power
The SiW1711 Radio Modem includes both analog and digital voltage regulators. Input options are based on factors such
as voltage source, where internal regulators are used, and I/O voltage.
Pin Description
The SiW1711 Radio Modem’s radio and modem interface, the serial programming interface (SPI), and a single clock input
and supply voltage are required for proper operation. The following table provides detailed listings of pin descriptions
arranged by functional groupings.
Table 1. SiW1711 Radio Modem Pin List
Name
Pad Type
Description
Radio Interface Signal Description
RF_IN
Analog
RF signal input into the receiver.
RF_OUT
Analog
RF signal output from the transmitter.
IDAC
Analog
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.
TX_RX_SWITCH
CMOS output
Output signal to indicate the current state of the radio. The polarity is programmable with the
default set as:
Low=Transmit mode.
High=Non-transmit mode.
Modem Interface Description
RX_TX_DATA
CMOS
bi-directional
Received data from radio; or transmit data to radio.
CD_TXEN
CMOS
bi-directional
Dual function carrier detect and transmit enable. This bi-directional signal can be enabled
through internal registers. During transmit, this pin can be used as an INPUT to indicate valid
transmit data (TXEN). During receive, this pin can be used as an OUTPUT to indicate carrier
detect (CD). Input only, output, or bi-directional.
ENABLE_RM
CMOS input
Sleep/Wake control signal from baseband controller. Used to command the SiW1711 Radio
Modem from IDLE to SLEEP Mode, and to awaken the SiW1711 Radio Modem from SLEEP
mode.
HOP_STROBE
CMOS input
Signal generated by the baseband to indicate the start of TX or RX ramp-up.
RESET_N
CMOS input
Reset for digital circuits only. State machines and internal registers reset to their default state.
This signal is an asynchronous input with a minimum pulse width requirement of 10 µs.
Clock Signals Description
XTAL_P/CLK
Analog
System clock crystal positive input or reference clock input. For additional information see the
“Crystal Requirements” and “External Reference Requirements” sections.
XTAL_N
Analog
System clock crystal negative input. If a reference clock frequency is used, this pin should be
left unconnected.
BB_CLK
CMOS output
Selectable clock output to external baseband controller. Five frequencies are supported (in
MHz): 12, 13, 16, 32, and 48. BB_CLK stops oscillating when ENABLE_RM is de-asserted
(low).
Serial Programming Interface Description
SPI_TXD
CMOS output
SPI data output port.
SPI_RXD
CMOS input
SPI data input port.
SPI_CLK
CMOS input
Clock input used for synchronous data transfer on the SPI bus.
SPI_SS
CMOS input
SPI slave select that enables the SiW1711 Radio Modem as the target.
Power Signals Description
VBATT_ANA
Power
Supply voltage to internal analog voltage regulator.
VBATT_DIG
Power
Supply voltage to internal digital voltage regulator.
VCC_OUT
Power
Regulated output from internal analog regulator.
VBB_OUT
Power
Regulated output from internal digital regulator.
VCC
Power
Supply voltage to on-chip analog circuits.
VDD_IO
Power
Supply voltage to on-chip I/O interface.
I/O pins: BB_CLK, CD_TXEN, ENABLE_RM, HOP_STROBE, RESET_N, RX_TX_DATA,
SPI_CLK, SPI_RXD, SPI_SS, SPI_TXD, TX_RX_SWITCH
VBB_RDY
CMOS output
This signal is used to indicate that the internal digital regulator is stable (VBB_OUT).
Other I/O Description
VREFP_CAP
Analog
Decoupling capacitor for voltage reference for the internal A/D converter.
VREFN_CAP
Analog
Decoupling capacitor for voltage reference for the internal A/D converter.
VTUNE
Analog
Pin for reference PLL loop filter.
CHG_PUMP
Analog
Pin for RF PLL loop filter.


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