SX1223I073TRT Semtech, SX1223I073TRT Datasheet - Page 20

• Manufacturer Part Number: SX1223I073TRT
• Description: IC TX UHF 433/868/916 MHZ 24TQFN
• Manufacturer: Semtech

Specifications of SX1223I073TRT

• Frequency: 425 ~ 475MHz / 850 ~ 950MHz
• Applications: AMR, Home Automation, HQ Music and Data
• Modulation Or Protocol: FSK
• Data Rate - Maximum: 153.6 kbps
• Power - Output: 10dBm
• Current - Transmitting: 25.8mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-TQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Other names: SX1223I073TR

© Semtech 2007
Add
Add Bits PA_IB3 PA_IB2
Add Bits PA_IB1 PA_IB0
Add Bits PAB_IB3 PAB_IB2 State
Add Bits PAB_IB1 PAB_IB0 State
16
17
17
17
17
7-6
5-4
3-2
1-0
Bit
3
VCO_by
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
VCO is active (default)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
VCO is bypassed
State
State
PA uses bias current from PTAT bias source, external resistor (Pin 6)
PA uses bias current from CI bias source, external resistor (Pin 24)
PA uses bias current from internal bias source, PTAT
PA uses bias current from internal bias source, PTAT + CI (default)
State
PA bias current setting, lowest bias current
PA bias current setting (default)
PA bias current setting
PA bias current setting, highest bias current
PAbuffer uses bias current from PTAT bias source, external resistor (Pin 6)
PAbuffer uses bias current from CI bias source, external resistor (Pin 24)
PAbuffer uses bias current from internal bias source, PTAT
PAbuffer uses bias current from internal bias source, PTAT + CI (default)
PAbuffer bias current setting, lowest bias current
PAbuffer bias current setting (default)
PAbuffer bias current setting
PAbuffer bias current setting, highest bias current
Table 31: PA and PAbuffer bias current setting
Table 30: VCO bypass bit
Comment
When VCO is bypassed, a differential signal can be
applied to the circuit using pin CPOUT and VARIN
20
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