AS3977BQFU austriamicrosystems, AS3977BQFU Datasheet - Page 9

• 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 - E l e c t r i c a l C h a r a c t e r i s t i c s
Table 4. Block Specification (Continued)
1. These parameters will not be tested.
Table 5. Resolution of FSK Deviation
1. INT<8> refer to Register Settings
Table 6. Reference Frequency Generator and Micro Controller Clock Driver
www.austriamicrosystems.com/AS3977
868MHz Frequency Band Section, EN 300 220 is applicable
915MHz Frequency Band Section, FCC part 15 is applicable
315MHz and 434MHz Frequency Band Section
868MHz and 915MHz Frequency Band Section
Crystal Oscillator
ΔFSK
ΔFSK
Symbol
Symbol
f
ΔFSK
ΔFSK
Symbol
P
ERROR
P
P
SPE2
SPE3
SPE4
res1
res2
3
4
(max. –1dBm radiated fundamental
Resolution of FSK Deviation
Resolution of FSK Deviation
Phase noise @ 250 kHz
Output Frequency Error
Phase noise @ 50 kHz
Phase noise @ 1 MHz
excluding Harmonics
excluding Harmonics
Spurious Emissions
Spurious Emissions
Spurious Emissions
Spurious Emissions
Spurious Emissions
and Harmonics
and Harmonics
FSK Deviation
FSK Deviation
Parameter
Parameter
Parameter
power)
1
1
1
1
1
1
1
Resolution of FSK Deviation
Resolution of FSK Deviation
470-862MHz (@-10dBm radiated power)
at frequencies > 960MHz and harmonics
For detailed information,
For detailed information,
Charge pump setting: I
Deviation Setting and Frequency
Deviation Setting and Frequency
at other frequencies < 1GHz
at other frequencies < 1GHz
470-862MHz (EN 300 220)
at ≥ 1GHz (EN 300 220)
at frequencies ≥ 1GHz
Trimming on page 37
Trimming on page 37
programmable (8bit)
programmable (8bit)
With ideal crystal,
T
T
V
V
AMB
AMB
SUP
SUP
87.5-118MHz
87.5-118MHz
174-230MHz
174-230MHz
216-960MHz
Conditions
Conditions
Conditions
Revision 3.6
47-74MHz
47-74MHz
=2.0…3.6V,
=2.0…3.6V,
=-40…85ºC
=-40…85ºC
ARIB
CHP
See FSK
See FSK
(see Table 5)
(see Table 5)
=50µA;
Equation for Min. Resolution
Min
Min
ΔF = (INT <8> +1).
ΔF = (INT <8> +1).
0
0
Typ
Typ
f
--------- -
f
--------- -
2
2
REF
REF
16
15
Max
Max
±64
±64
-54
-36
-30
-29
-54
-36
-30
-78
-85
-89
-49
-41
±1
dBc/Hz
Units
Units
dBm
dBm
dBm
dBm
dBm
Units
ppm
kHz
kHz
Hz
Hz
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