Analog Devices ADRV9001 User Manual

UG-1828 Preliminary Technical Data
Rev. PrC | Page 114 of 338
Figure 114 Frequency Hopping Typical Tx Tioming for LO Retune
Table 41 Tx Timing Parameters
Delay Parameter Descriptions Bounds Notes
enableSetupDelay
(ttxEnaSetup)
Time taken for
ADRV9001 to power
up the analog front
end. This time may nor
may not include PLL
retuning time.
N/A No PLL retuning @ hop edge: 5 µs
PLL retuning @ frame boundary:
LO_retune_time
propagationDelay Delay from ADRV9001
digital interface to
antenna.
N/A This time is not used for any delays in
ADRV9001. The user should enable the interface
and begin data transmission enough time prior
to the end of the transition time to account for
the propagation delay.
enableRiseToOnDelay Delay between hop
edge and antenna
switching to Tx
channel.
Min: 0
Max: Transition time
If ADRV9001 is not controlling the antenna
switch, this parameter is not needed except to
determine other parameters.
Typically, the enableRiseToAnalogOnDelay +
enableSetupDelay will be the transition time, or
transition time + guard time.
enableRiseToAnalogOnDelay
(tTxEnaRiseToAnaOn)
Delays the power up of
the AFE relative to the
hop edge.
Min: 0
Max:
enableRiseToOnDelay -
enableSetupDelay
This parameter can be used to delay the Tx
analog power up if the transition time is greater
than the analog power up time. This delay can
also be used to delay the analog power up
depending on propagation delay requirements.
enableGuardDelay Not used in frequency
hopping. Delay from
hop edge to first valid
data arriving over
interface.
NA Not used
enableHoldDelay Not used in frequency
hopping. Delay from
hop edge and Tx
interface being
disabled.
NA Hop edge indicates the end of the frame on air.
The datapath and interface are not kept on
beyond this point.

Analog Devices ADRV9001 Specifications

General

Brand	Analog Devices
Model	ADRV9001
Category	Transceiver
Language	English