AS3977BQFU austriamicrosystems, AS3977BQFU Datasheet - Page 31
AS3977BQFU
Manufacturer Part Number
AS3977BQFU
Description
Ultra-High Frequency FSK Transmitter IC
Manufacturer
austriamicrosystems
Datasheet
1.AS3977BQFU.pdf
(47 pages)
Specifications of AS3977BQFU
Modulation Type
FSK
Supply Voltage Range
2V To 3.6V
Module Interface
Serial
Supply Current
17mA
Ic Function
Multi-Channel Narrowband FSK Transmitter
Termination Type
SMD
No. Of Pins
16
Rohs Compliant
Yes
Operating Temperature Range
-40°C To +85°C
Filter Terminals
SMD
Digital Ic Case Style
QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
AS3977
Data Sheet - A p p l i c a t i o n I n f o r m a t i o n
Table 23. Configuration Registers Description
www.austriamicrosystems.com/AS3977
Modulation and Power Amplifier section
J<12:11>
J<14:13>
Register
K<10:9>
J<10:7>
I<15:8>
K<3:0>
K<8:7>
J<5:2>
I<7:0>
J<15>
K<4>
K<5>
K<6>
J<0>
J<1>
J<6>
RPAOV1
PREOP1
RPAOV2
DF<7:0>
reserved
REGEN
ATCPH
PAOP1
PAOP2
Name
GFCS
GFBP
<7:0>
<3:0>
<1:0>
<1:0>
<4:0>
FSK1
<1:0>
<1:0>
LS
LT
-
application dependent
application dependent
application dependent
application dependent
application dependent
Default Value
0000
0000
Revision 3.6
11
11
0
1
0
0
0
0
Gaussian filter clock setting
FSK deviation setting
Gaussian filter bypass
0: not bypassed
1: bypassed
0: Turn off the VDD RF Regulator
1: Turn on the VDD RF Regulator
reserved Bits: set to Binary 0000 for normal mode of
operation
reserved Bit should be set to 0
Antenna tuning circuit phase shift setting
0 (0000): minimum capacitor
:
:
15 (1111): maximum capacitor
PA voltage regulator setting 1
0 (00): V
1 (01): V
2 (10): V
3 (11): V
Power amplifier power level setting 1
0 (00): maximum power
:
3 (11): minimum power
Preamplifier power level setting 1
0 (00000): power off
1 (00001): minimum power
:
31 (11111): maximum power
Modulation type selection 1
0: FSK
1: reserved for test purposes only
Lock transmit, active=high
Low power supply indicator, active=high
PA voltage regulator setting 2
0 (00): V
1 (01): V
2 (10): V
3 (11): V
Power amplifier power level setting 2
0 (00): maximum power
:
3 (11): minimum power
REG
REG
REG
REG
REG
REG
REG
REG
=2.0V
=2.0V
=1.7V
=1.8V
=1.9V
=1.7V
=1.8V
=1.9V
Description
31 - 47