SI1000-C-GM Silicon Laboratories Inc, SI1000-C-GM Datasheet - Page 95

• Manufacturer Part Number: SI1000-C-GM
• Description: IC TXRX MCU + EZRADIOPRO
• Manufacturer: Silicon Laboratories Inc

Specifications of SI1000-C-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: 64kB Flash, 4kB 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: 4.1 mA
• Minimum Operating Temperature: - 40 C
• Modulation: FSK, GFSK, OOK
• Protocol Supported: C2, SMBus
• Core: 8051
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 4352 B
• Supply Current (max): 4.1 mA
• Cpu Family: Si100x
• Device Core: 8051
• Device Core Size: 8b
• Frequency (max): 25MHz
• Total Internal Ram Size: 4.25KB
• # I/os (max): 22
• Number Of Timers - General Purpose: 4
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 1.8V
• On-chip Adc: 18-chx10-bit
• Instruction Set Architecture: CISC
• Mounting: Surface Mount
• Pin Count: 42
• Package Type: QFN EP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1881-5

5.7. Voltage and Ground Reference Options
The voltage reference MUX is configurable to use an externally connected voltage reference, one of two
internal voltage references, or one of two power supply voltages (see Figure 5.10). The ground reference
MUX allows the ground reference for ADC0 to be selected between the ground pin (GND) or a port pin
dedicated to analog ground (P0.1/AGND).
The voltage and ground reference options are configured using the REF0CN SFR described on page 97.
Electrical specifications are can be found in the Electrical Specifications Chapter.
Important Note About the V
inputs. When using an external voltage reference or the internal precision reference, P0.0/VREF should be
configured as an analog input and skipped by the Digital Crossbar. When using AGND as the ground refer-
ence to ADC0, P0.1/AGND should be configured as an analog input and skipped by the Digital Crossbar.
Refer to Section “21. Port Input/Output” on page 207 for complete Port I/O configuration details. The exter-
nal reference voltage must be within the range 0  V
must be at the same DC voltage potential as GND.
5.8. External Voltage References
To use an external voltage reference, REFSL[1:0] should be set to 00 and the internal 1.68 V precision ref-
erence should be disabled by setting REFOE to 0. Bypass capacitors should be added as recommended
by the manufacturer of the external voltage reference.
4 .7 F
B ypass C apacitors
R ecom m ended
G N D
V D D
+
R 1
R eference
E xternal
V oltage
C ircuit
0 .1 F
Figure 5.10. Voltage Reference Functional Block Diagram
P 0.1/A G N D
P 0 .0/V R E F
V D D /D C +
REF
G N D
and AGND Inputs: Port pins are used as the external V
Internal 1.68V
R E F O E
R eference
E N
Rev. 1.0
R egulated D igital S upply
H igh S peed R eference
R E F 0C N
REF
Internal 1.65 V
Internal 1.8V
 VDD_MCU and the external ground reference
Si1000/1/2/3/4/5
E N
T em p S ensor
R E F G N D
00
01
10
11
0
1
REF
and AGND
(to A D C )
(to A D C )
V R E F
G round
Input
A D C
M ux
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