SI1010-A-GM Silicon Laboratories Inc, SI1010-A-GM Datasheet - Page 198
SI1010-A-GM
Manufacturer Part Number
SI1010-A-GM
Description
IC TXRX MCU + EZRADIOPRO
Manufacturer
Silicon Laboratories Inc
Specifications of SI1010-A-GM
Package / Case
42-QFN
Frequency
240MHz ~ 960MHz
Data Rate - Maximum
256kbps
Modulation Or Protocol
FSK, GFSK, OOK
Applications
General Purpose
Power - Output
20dBm
Sensitivity
-121dBm
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
18.5mA
Current - Transmitting
85mA
Data Interface
PCB, Surface Mount
Memory Size
16kB Flash, 768B RAM
Antenna Connector
PCB, Surface Mount
Number Of Receivers
1
Number Of Transmitters
1
Wireless Frequency
240 MHz to 960 MHz
Interface Type
UART, SMBus, SPI, PCA
Output Power
20 dBm
Operating Supply Voltage
0.9 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Supply Current
4 mA
Minimum Operating Temperature
- 40 C
Modulation
FSK, GFSK, OOK
Protocol Supported
C2, SMBus
Core
8051
Program Memory Type
Flash
Program Memory Size
16 KB
Data Ram Size
768 B
Supply Current (max)
4 mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1874-5
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI1010-A-GM
Manufacturer:
Silicon Laboratories Inc
Quantity:
135
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3. Poll for XTLVLD => 1.
4. Switch the system clock to the external oscillator.
19.3.3. External Capacitor Mode
If a capacitor is used as the external oscillator, the circuit should be configured as shown in Figure 19.1,
Option 3. The capacitor should be added to XTAL2, and XTAL2 should be configured for analog I/O with
the digital output drivers disabled. XTAL1 is not affected in RC mode.
The capacitor should be no greater than 100 pF; however, for very small capacitors, the total capacitance
may be dominated by parasitic capacitance in the PCB layout. The oscillation frequency and the required
External Oscillator Frequency Control value (XFCN) in the OSCXCN Register can be determined by the
following equation:
where
f = frequency of clock in MHzR = pull-up resistor value in k
V
Below is an example of selecting the capacitor and finding the frequency of oscillation Assume V
and f = 150 kHz:
Since a frequency of roughly 150 kHz is desired, select the K Factor from Table 19.2 as KF = 22:
Therefore, the XFCN value to use in this example is 011 and C is approximately 50 pF.
The recommended startup procedure for C mode is the same as RC mode.
19.3.4. External CMOS Clock Mode
If an external CMOS clock is used as the external oscillator, the clock should be directly routed into XTAL2.
The XTAL2 pin should be configured as a digital input. XTAL1 is not used in external CMOS clock mode.
The external oscillator valid detector will always return zero when the external oscillator is configured to
External CMOS Clock mode.
198
DD
0.150 MHz
C
0.150 MHz
f
f
=
= power supply voltage in VoltsC = capacitor value on the XTAL2 pin in pF
=
=
---------------------------------------------- -
0.150 MHz 3.0 V
C
-------------------- -
C V
-------------------- -
C V
=
KF
KF
48.8 pF
=
DD
DD
=
22
---------------------- -
C 3.0 V
-----------------
C 3.0
KF
22
Rev. 1.0
DD
= 3.0 V
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