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Electrical Specifications
nanoNET TRX Transceiver (NA1TR8) Datasheet
© 2007 Nanotron Technologies GmbH.
NA-03-0111-0239-2.09 Page 15
8
8.6
Interface to Digital Controller Parameters
Under nominal conditions unless specified. See Nominal Conditions on page 7.
Note: Level translator is required for 5V logic level microcontroller.
Turn-on time TX
(user command received via SPI and
begin of packet transmission)
–
24
–
µs
Turn-on time RX
(user command received via SPI and
begin of packet reception)
–
6
–
µs
Startup Time for 16 MHz XTAL until sta-
ble frequency generation
1.5
–
5
ms
Calibration time
–
.2
–
ms
Table 9: Interface to digital controller parameters
Symbol
Description
Min
Typical
Max
Unit
Notes
µCVccExt
High current output /
high impendance
Voltage @ 10mA load
VDD - 100
VDD - 20
VDD
mV
Maximum
current output =
10mA /
high impedance
mode
µCReset
Push-pull, tristate
–
–
–
V
See footnotea
a.
Vcc = 2.4V : VOH = 2.0V, VIH = 1.7V, VOL = 0.2V, VIL = 0.7V,
Vcc = 3.0..3.6V : VOH = 2.4V, VIH = 1.7..2.0V, VOL = 0.2V, VIL = 0.8V
µCIRQ
Push-pull
–
–
–
V
See footnotea .
SpiRxD
SpiClk,
SpiSSn
Input
–
–
–
V
See footnotea
SpiTxD
Open-drain or
push-pull
–
–
–
V
See footnotea
Table 8: Power management and sleep/wake-up circuitry parameters
Description
Min
Typical
Max
Unit
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