参数资料
型号: TRC105
厂商: RFM
文件页数: 11/67页
文件大小: 0K
描述: IC TXRX 300MHZ-510MHZ 32TQFN
标准包装: 1
频率: 300MHz ~ 510MHz
数据传输率 - 最大: 200kbps
调制或协议: FSK,OOK
应用: 通用
功率 - 输出: 13dBm
灵敏度: -112dBm
电源电压: 2.1 V ~ 3.6 V
电流 - 接收: 3mA
电流 - 传输: 30mA
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
工作温度: -40°C ~ 85°C
封装/外壳: 32-TQFN
包装: 标准包装
产品目录页面: 583 (CN2011-ZH PDF)
其它名称: 583-1159-6
2.6 PLL Loop Filter
The loop filter for the frequency synthesizer is shown in Figure 6.
PLL Loop Filter
PLL Loop Filter Components
Name
C8
C9
R1
Value
1000 pF
6800 pF
6.8 kΩ
Tolerance
±10%
±10%
±5%
Table 6
Figure 6
Recommended component values for the frequency synthesizer loop filter are provided in Table 6. The loop filter
settings are not dependent on the frequency band, so they can be used on all designs. PLL lock status can be
provided on Pin 23 by setting the IRQCFG0E_PLL_LOCK_EN[0] bit to a 1. Pin 23 goes high when the PLL is
locked. The lock status of the PLL can also be checked by reading the IRQCFG0E_PLL_ LOCK_ST[1] bit. This
bit latches high each time the PLL locks and must be reset by writing a 1 to it.
3.0 Operating Modes
The TRC105 has 5 possible chip-level modes. The chip-level mode is set by MCFG00_Chip_Mode[7..5] , which
is a 3-bit pattern in the configuration register. Table 7 summarizes the chip-level modes:
MCFG00_Chip_Mode[7..5]
000
001
010
011
100
Chip-level Mode
Sleep
Standby
Synthesizer
Receive
Transmit
Enabled Functions
None
Crystal oscillator
Crystal and frequency synthesizer
Crystal, frequency synthesizer and receiver
Crystal, frequency synthesizer and transmitter
Table 7
Table 8 gives the state of the digital pins for the different chip-level modes and settings:
PIN Function
nSS_CONFIG*
nSS_DATA*
IRQ0
IRQ1
DATA
CLKOUT
SDO**
SDI
SCK
Sleep
Mode
I
I
TRI
TRI
TRI
TRI
TRI/O
I
I
Standby
Mode
I
I
O
O
TRI
O
TRI/O
I
I
Synthesizer
Mode
I
I
O
O
TRI
O
TRI/O
I
I
Receive
Mode
I
I
O
O
O
O
TRI/O
I
I
Transmit
Mode
I
I
O
O
I
O
TRI/O
I
I
I = Input, O = Output, TRI = High Impedance
*nSS_CONFIG has priority OVER nSS_DATA
**SDO is an output if nSS_CONFIG = 0 and/or nSS_DATA = 0
Table 8
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? 2009-2013 by RF Monolithics, Inc.
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Page 11 of 67
TRC105 - 05/29/13
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