RF64 Datasheet, PDF (33/76 Pages) List of Unclassifed Manufacturers – ADVANCED COMMUNICATIONS & SENSING

ADVANCED COMMUNICATIONS & SENSING
RF64
4. Operating Modes
This section summarizes the settings for each operating mode of the RF64, and explains the functionality
available and the timing requirements for switching between modes.
4.1. Modes of Operation
Table 12: Operating Modes
Mode
Sleep
Standby
MCParam_Chip_mode
000
001
FS
010
Receive
011
Transmit
100
Active blocks
SPI, POR
SPI, POR, Top regulator, digital regulator, XO, CLKOUT (if activated through
OSCParam_Clkout)
Same + VCO regulator, all PLL and LO generation blocks
Same as FS mode + LNA, first mixer, IF amplifier, second mixer set, channel
filters, baseband amplifiers and limiters, RSSI, OOK or FSK demodulator,
BitSync and all digital features if enabled
Same as FS mode + DDS, Interpolation filters, all up-conversion mixers, PA
driver, PA and external VR_PA pin output for PA choke.
4.2. Digital Pin Configuration vs. Chip Mode
Table 13 describes the state of the digital IOs in each of the above described modes of operation.
Table 13: Pin Configuration vs. Chip Mode
Chip
……….Mode
Pin
Sleep
mode
Standby
mode
FS mode
NSS_CONFIG Input Input
Input
NSS_DATA
Input
Input
Input
MISO
Input Input
Input
MOSI
SCK
IRQ_0
IRQ_1
DATA
CLKOUT
Input
Input
High-Z
High-Z
Input
High-Z
Input
Input
Output (1)
Output (1)
Input
Output
Input
Input
Output (1)
Output (1)
Input
Output
Receive
mode
Input
Input
Input
Input
Input
Output
Output
Output
Output
Transmit
mode
Comment
Input
Input
Input
Input
Input
Output
Output
Input
Output
NSS_CONFIG has the priority over
NSS_DATA
Output only if NSS_CONFIG or
NSSDATA=‟0‟
Notes:
(1): High-Z if Continuous mode is activated, else Output
(2): Valid logic states must be applied to inputs at all times to avoid unwanted leakage currents
Page 33 of 76
Tel: [phone] Fax: [phone] E-mail: [e-mail] http://www.hoperf.com