JN5148/001,515 NXP Semiconductors, JN5148/001,515 Datasheet - Page 91
JN5148/001,515
Manufacturer Part Number
JN5148/001,515
Description
MCU 802.15.4 32BIT 2.4G 56-QFN
Manufacturer
NXP Semiconductors
Series
JN5148r
Datasheet
1.JN5148-UG010.pdf
(99 pages)
Specifications of JN5148/001,515
Frequency
2.4GHz
Data Rate - Maximum
667kbps
Modulation Or Protocol
802.15.4
Applications
Home/Building Automation, Industrial Control
Power - Output
2.5dBm
Sensitivity
-95dBm
Voltage - Supply
2 V ~ 3.6 V
Current - Receiving
17.5mA
Current - Transmitting
15mA
Data Interface
PCB, Surface Mount
Memory Size
128kB RAM, 128kB ROM
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
56-VFQFN
Core
RISC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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As is stated above, not all combinations of crystal load capacitance and ESR are valid, and as explained in Appendix
B.1.3 there is a trade-off that exists between the load capacitance and crystal ESR to achieve reliable performance.
For this reason, we recommend that for a 9pF load capacitance crystals be specified with a maximum ESR of 40
ohms. For lower load capacitances the recommended maximum ESR rises, for example, CL=7pF the max ESR is 61
ohms. For the lower cost crystals in the large HC49 package, a load capacitance of 9 or 10pF is widely available and
the max ESR of 30 ohms specified by many manufacturers is acceptable. Also available in this package style, are
crystals with a load capacitance of 12pF, but in this case the max ESR required is 25 ohms or better.
Below is measurement data showing the variation of the crystal oscillator amplifier transconductance with
temperature and supply voltage, notice how small the variation is. Circuit techniques have been used to apply
compensation, such that the user need only design for nominal conditions.
© NXP Laboratories UK 2010
4.35
4.25
4.15
4.31
4.29
4.28
4.3
4.2
4.1
4.3
-40
2
2.2
-20
2.4
0
32MHz Crystal Oscillator
32MHz Crystal Oscillator
JN-DS-JN5148-001 1v6
2.6
Supply Voltage (VDD)
Temperature (C)
20
2.8
40
3
60
3.2
80
3.4
100
3.6
91
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