TRC101 RFM, TRC101 Datasheet - Page 21

• Manufacturer Part Number: TRC101
• Description: RFIC TRANCEIVER MULTI-CHANNEL FS
• Manufacturer: RFM
• Series: TRCr

Specifications of TRC101

• Frequency: 300MHz ~ 1GHz
• Data Rate - Maximum: 256kbps
• Modulation Or Protocol: FSK
• Applications: General Purpose
• Power - Output: 8dBm
• Sensitivity: -105dBm
• Voltage - Supply: 2.2 V ~ 5.4 V
• Current - Receiving: 17mA
• Current - Transmitting: 28mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Other names: 583-1093-2

Bit
15
1
Bit
14
0
Frequency Setting Register
The Frequency Setting Register sets the exact frequency within the selected band for transmit or receive.
Each band has a range of frequencies available for channelization or frequency hopping. The selectable
frequencies for each band are:
Bit [15..12] – Command Code: These bits are the command code that is sent serially to the processor
that identifies the bits to be written to the Frequency Setting Register.
Bit [11..0] – Frequency Setting: These bits set the center frequency to be used during transmit or
receive. The value of bits[11..0] must be in the decimal range of 96 to 3903. Any value outside of this
range will cause the previous value to be kept and no frequency change will occur. To calculate the
center frequency fc, use Table 9 below and the following equation:
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©by RF Monolithics, Inc.
Bit
13
1
Bit
12
0
where f
Freq11
Bit
11
VAL
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Frequency Band
= decimal value of Freq[11..0] = 96<f
Freq10
300 MHz
400 MHz
800 MHz
900 MHz
Bit
10
Freq9
[POR=A680h]
Bit
9
f
c
= 10 * B1 * (B0 + f
Min (MHz)
Freq8
TABLE 9.
310.24
430.24
860.48
900.72
315 MHz
433 MHz
868 MHz
916 MHz
Bit
8
Range
Freq7
Bit
7
Max (MHz)
B1
319.75
439.75
879.51
929.27
1
1
2
3
VAL
Freq6
VAL
/4000) MHz
Bit
6
B0
31
43
43
30
<3903.
Freq5
Tuning Resolution
Bit
5
2.5 kHz
2.5 kHz
5.0 kHz
7.5 kHz
Freq4
Bit
4
Freq3
Bit
3
Freq2
Bit
2
TRC101 - 4/8/08
Page 21 of 42
Freq1
Bit
1
Freq0
Bit
0