AS3977BQFU austriamicrosystems, AS3977BQFU Datasheet - Page 39

• 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
Figure 13. Schematic
Table 25. Part List of the Reference Design Components
www.austriamicrosystems.com/AS3977
315 MHz
433 MHz
Component
C3
C2
C1
C3
C2
C1
L4
L2
L1
L4
L2
L1
2.7 pF
0.5 pF
2.2 pF
2.7 pF
Value
47 nH
62 nH
10 pF
56 nH
24 nH
33 nH
10 pF
43 nH
Supply voltage 2V regulated
Source is VREGRF (pin 16)
AS3977
Murata-LQW18AN47NG00
Murata-LQW18AN62NG00
Murata-GRM1885C1H100JA01
Murata-GRM1885C1H2R7CZ01
Murata-LQW18AN56NG00
Murata-GRM1885C1HR50CZ01
Murata-LQW18AN24NG00
Murata-LQW18AN33NG00
Murata-GRM1885C1H100JA01
Murata-GRM1885C1H2R2CZ01
Murata-LQW18AN43NG00
Murata-GRM1885C1H2R7CZ01
PREOUT
PAOUT
2
1
Type
Voltage
Supply
L4
C3
Revision 3.6
315 MHz
433 MHz
Compone
C3
C2
C1
C3
C2
C1
L4
L2
L1
L4
L2
L1
nt
Π Matching Network
to 50Ω
L1
100 pF
100 pF
3.3 pF
4.7 pF
3.9 pF
6.8 pF
43 nH
62 nH
82 nH
24 nH
33 nH
43 nH
Value
Source is Power Supply
Supply voltage 3V
Murata-LQW18AN43NG00
Murata-LQW18AN62NG00
Murata-GRM1885C1H101JA01
Murata-GRM1885C1H3R3CZ01
Murata-LQW18AN82NG00
Murata-GRM1885C1H4R7CZ01
Murata-LQW18AN24NG00
Murata-LQW18AN33NG00
Murata-GRM1885C1H101JA01
Murata-GRM1885C1H3R9CZ01
Murata-LQW18AN43NG00
Murata-GRM1885C1H6R8CZ01
SMA
Connector
Into 50Ω
Type
39 - 47