AS3977BQFU austriamicrosystems, AS3977BQFU Datasheet - Page 31

• Manufacturer Part Number: AS3977BQFU
• Description: Ultra-High Frequency FSK Transmitter IC
• Manufacturer: austriamicrosystems

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
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