AMIS-52000 Datasheet, PDF (8/15 Pages) AMI SEMICONDUCTOR – Single-Chip Radio Transceiver

AMIS-52000 Single-Chip Radio Transceiver
Data Sheet
Pin
I²CDATA
I²CCLK
Function
Internal Pullup
Internal Pullup
Resistor
15
15
Units
K ohms
K ohms
Device
AMIS-52000
AMIS-52000
AMIS-52000
Address
0110100X
01101000
01101001
Hex Function
Device address
68
Device write
69
Read device
The I²C pins are also used as part of the wake-up function of
the AMIS-52000. When the AMIS-52000 is in power down
2
or sleep mode, the I CCLK line can be driven to a low state
to wake the AMIS-52000. Then an external controller can
RSSI/BG, Analog Output
The RSSI/BG pin outputs the analog RSSI signal. This signal
is filtered by an internal parallel connection of a resistor and
capacitor to ground.
2
interrogate the state of the I CDATA line to determine
whether a Sniff function detected RF (data high) or a
HOUSEKEEPING timer timeout (data low).
The RSSI/BG pin (when programmed to be) outputs the
voltage of the internal Bandgap voltage reference.
Each of these functions for the RSSI/BG pin can be selected
by writing to the AMIS-52000 registers.
Table 14: RSSI/BG Analog Pin Definition Control (Registers 0x0F and 0x17)
Register
0x0F
Bit Bit Name
3 RSSI or Bandgap
Output
Bit State Comments
0
RSSI signal output (Pre Data Filter)
1
Bandgap voltage is output
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