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參數(shù)資料
| 型號(hào)： | TRC102 |
| 廠商： | RF Monolithics, Inc. |
| 英文描述： | 400-1000MHz RF Transceiver |
| 中文描述： | 400 - 1000MHz的射頻收發(fā)器 |
| 文件頁數(shù)： | 4/40頁 |
| 文件大?。?/td> | 449K |
| 代理商： | TRC102 |
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2. Functional Description
The TRC102 is a low power, frequency agile, zero-IF, multi-channel FSK transceiver for use in the 433,
868, and 916 MHz bands. All RF and baseband functions are completely integrated requiring only a
single 10MHz crystal as a reference source and an external low-cost processor. Functions include:
PLL synthesizer
Power Amp
LNA
I/Q Mixers
I/Q Demodulators
Baseband Filters
Baseband Amplifiers
RSSI
Low Battery Detector
Wake-up Timer/Duty Cycle Mode
Valid Data Detection/Data Quality
The TRC102 is ideal for Frequency Hopping Spread Spectrum (FHSS) applications requiring frequency
agility to meet FCC and ETSI requirements. Use of a low-cost microcontroller is all that is needed to
create a complete data link. The TRC102 incorporates different sleep modes to reduce overall current
consumption and extend battery life. It is ideal for applications operating from typical lithium coin cells.
2.1 TRC102 Typical Application Circuit
Figure 1. Typical Application Circuit for Monopole Antenna (50 Ohm Load)
RF Transmitter Matching
The RF pins are high impedance and differential. The optimum differential load for the RF port at a given
frequency band is shown in Table 1.
TABLE 1.
TRC102
Admittance
433 MHz
1.4e-3 – j7.1e-3
868 MHz
2e-3 – j1.5e-2
916 MHz
2.2e-3 – j1.55e-2
Impedance (Ohm)
27 + j136
8.7 + j66
9 + j63
L
52nH
12.5nH
11.2nH
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