RFM65W Datasheet, PDF (31/71 Pages) List of Unclassifed Manufacturers – ISM RECEIVER MODULE

ADVANCED COMMUNICATIONS & SENSING
RFM65W
DATASHEET
Rx startup request
(sequencer or user)
TS_RE
XO Started and PLL is locked
ModeReady
Analog FE’s
group delay
Tana
Channel Filter’s
group delay
Tcf
DC Cutoff’s RSSI
RSSI
group delay sampling sampling
Tdcc
Trssi
Trssi
Reception of Packet
RxReady
Figure 14. Rx Startup - No AGC, no AFC
Rx startup request
(sequencer or user)
TS_RE_AGC
The LNA gain is adjusted by
the AGC, according to the
RSSI result
XO Started and PLL is locked
ModeReady
Analog FE’s
group delay
Tana
Channel Filter’s
group delay
Tcf
DC Cutoff’s RSSI
RSSI
group delay sampling sampling
Channel Filter’s
group delay
Tdcc
Trssi
Trssi
Tcf
DC Cutoff’s RSSI
group delay sampling
Reception of Packet
Tdcc
Trssi
RxReady
Figure 15. Rx Startup - AGC, no AFC
Rx startup request
(sequencer or user)
TS_RE_AGC&AFC
The LNA gain is adjusted by
the AGC, according to the
RSSI result
Carrier Frequency is adjusted
by the AFC
XO Started and Analog FE’s Channel Filter’s DC Cutoff’s RSSI
RSSI Channel Filter’s DC Cutoff’s RSSI
PLL is locked group delay group delay group delay sampling sampling group delay group delay sampling
AFC
PLL
lock
Channel Filter’s
group delay
DC Cutoff’s
group delay
Reception of Packet
ModeReady
Tana
Tcf
Tdcc
Trssi
Trssi
Tcf
Tdcc
Trssi Tafc Tpllafc
Tcf
Tdcc
RxReady
Figure 16. Rx Startup - AGC and AFC
The different timings shown above are as follows:
Note The above timings represent maximum settling times, and shorter settling times may be observed in real cases
Page 31
Tel: [phone] Fax: [phone] E-mail: [e-mail] http:/ / www.hoperf.com