SI1011-A-GM Silicon Laboratories Inc, SI1011-A-GM Datasheet - Page 177

• Manufacturer Part Number: SI1011-A-GM
• Description: IC TXRX MCU + EZRADIOPRO
• Manufacturer: Silicon Laboratories Inc

Specifications of SI1011-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: 8kB 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: 8 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: 336-1872-5

When the dc-dc converter “Enabled” configuration (one-cell mode) is chosen, the following guidelines
apply:





DC-DC Converter
Enabled
0.9 to 1.8 V 
Supply Voltage
(one-cell mode)
DC-DC Converter
Disabled
1.8 to 3.6 V 
Supply Voltage
(two-cell mode)
In most cases, the GND/VBAT– pin should not be externally connected to GND.
The 0.68 µH inductor should be placed as close as possible to the DCEN pin for maximum efficiency.
The 4.7 µF capacitor should be placed as close as possible to the inductor.
The current loop including GND/VBAT–, the 4.7 µF capacitor, the 0.68 µH inductor and the DCEN pin
should be made as short as possible to minimize capacitance.
The PCB traces connecting VDD_MCU/DC+ to the output capacitor and the output capacitor to
GND_MCU/DC– should be as short and as thick as possible in order to minimize parasitic inductance.
Figure 16.2. DC-DC Converter Configuration Options
VBAT
VBAT
Rev. 1.0
4.7 uF
GND/VBAT-
GND/VBAT-
0.68 uH
DCEN
DCEN
Si1010/1/2/3/4/5
VDD_MCU/
VDD_MCU/
DC+
DC+
GND_MCU/
GND_MCU/
DC-
DC-
1 uF
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