SX1210 SEMTECH [Semtech Corporation], SX1210 Datasheet - Page 27

• Manufacturer Part Number: SX1210
• Description: Ultra-Low Power Integrated UHF Receiver
• Manufacturer: SEMTECH [Semtech Corporation]

4. Operating Modes
This section summarizes the settings for each operating mode of the SX1210, and explains the functionality
available and the timing requirements for switching between modes.
Table 10: Operating Modes
Table 11 describes the state of the digital IOs in each of the above described modes of operation, regardless of the
data operating mode.
Table 11: Pin Configuration vs. Chip Mode
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
(3): Tie to Vss (or Vdd) when not in active receive mode.
(4): Output if PLL_lock_en = 1, else High-Z
Rev 2– Sept 8
ADVANCED COMMUNICATIONS & SENSING
Mode
Sleep
Standby
FS
Receive
……….Mode
NSS_CONFIG
NSS_DATA
MISO
MOSI
SCK
IRQ_0
IRQ_1
DATA (3)
CLKOUT
PLL_LOCK
4.1. Modes of Operation
4.2. Digital Pin Configuration vs. Chip Mode
Pin
Chip
th
, 2008
MCParam_Chip_mode
Sleep
mode
Input
Input
Input
Input
Input
High-Z
High-Z
High-Z
High-Z
High-Z
000
001
010
011
Standby
mode
Input
Input
Input
Input
Input
Output (1)
Output (1)
High-Z
Output
Output (4)
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
FS mode
Input
Input
Input
Input
Input
Output (1)
Output (1)
High-Z
Output
Output (4)
Page 27 of 73
Receive
mode
Input
Input
Input
Input
Input
Output
Output
Output
Output
Output
(4)
Comment
NSS_CONFIG has the priority over
NSS_DATA
Output only if NSS_CONFIG or
NSSDATA=’0’
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SX1210