AMIS-52150 Low-Power Transceiver with Clock and Data Recovery
Data Sheet
9.11 Alternative Wake-Up
Figure 19: Wakeup Circuits
The AMIS-52150 will wake from a low power mode upon the reception of RF energy, an application wakeup time out or when signaled
by an external controller. The low power mode is when the RF circuits are shut off, the crystal oscillator is shut off, the CLKOUT circuits
are shut off and only the RC oscillator and wakeup divider chain are running. When the AMIS-52150 receiver detects energy and wakes
up, the RX/TX pin is set low while the I2CDATA and I2CCLK pins are allowed to remain pulled high. When the application wakeup timer
wakes the AMIS-52150 to inform the external controller that tasks need to be performed, the TX/RX and I2CDATA pins are set low
while the I2CCLK pin is allowed to remain high. The TX/RX pin can be used to alert the external controller that a wake up occurred in
the AMIS-52150. Then the external controller can interrogate the I2C pins to determine what caused the wake up to occur. The external
controller can also cause the AMIS-52150 to wake up by setting both the I2CDATA and I2CCLK lines low. These functions are shown in
the following Table 30.
Table 30: Wakeup Truth Table
Wakeup Truth Table
Wakeup Source
SNIFF
HK Cycle
External
TX/RX
I2CDATA
I2CCLK
CLKOUT
Comments
0
0
1
1
0
0
1
1
0
XTAL out
RC oscillator
Don’t care
Wake on RF energy detect
Wake due to HK timer timeout
Wake due to external controller
10.0 Ordering Information
Ordering Code
19293-001-XTP
XTD)
Device Number
(or AMIS-52150-I/A
Package Type
20-pin SSOP (209mil) Industrial, automotive, other
(shrink small outline
Industry Application
Shipping Configuration
Tape&Reel (-XTP)
Tube/Tray (-XTD)
package)
19293-002-XTP
XTD)
(or AMIS-52150-M
20-pin SSOP (209mil) Medical
(shrink small outline
Tape&Reel (-XTP)
Tube/Tray (-XTD)
package)
19293-003-DIE
19293-004-DIE
AMIS-52150-I/A
AMIS-52150-M
Bare die
Bare die
Industrial, automotive, other
Medical
Waffle-pack
Waffle-pack
AMI Semiconductor – Rev 4.0, Oct. 06 – M-20535-004
25
www.amis.com
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