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| 型号： | EVB7122-433-FSK-C |
| 厂商： | Melexis Technologies NV |
| 文件页数： | 5/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR TH7122 433MHZ |
| 标准包装： | 1 |
| 类型： | 收发器，TPMS，RKE |
| 频率： | 433MHz |
| 适用于相关产品： | TH7122 |
| 已供物品： | 板 |
EVB7122
27 to 930MHz Transceiver
Evaluation Board Description
2
2.1
Description of User Modes
Stand-alone User Mode Operation
After power up the transceiver is set to stand-alone user mode. In this mode, pins FS0/SDEN and FS1/LD
must be connected to V EE or V CC to set the desired frequency of operation. The logic level at pin FS0/SDEN
must not be changed after power up in order to remain in stand-alone user mode. The default settings of the
control word bits in stand-alone user mode are described in the frequency selection table. Detailed
information about the default settings can be found in the tables of section 5.
2.1.1
Frequency Selection
Channel frequency
FS0/SDEN
FS1/LD
433.92 MHz
1
0
868.3 MHz
0
0
315 MHz
1
1
915 MHz
0
1
Reference oscillator frequency
7.1505 MHz
R counter ratio in RX mode (RR)
PFD frequency in RX mode
N counter ratio in RX mode (NR)
VCO frequency in RX mode
RX frequency
R counter ratio in TX mode (RT)
PFD frequency in TX mode
N counter ratio in TX mode (NT)
VCO frequency in TX mode
TX frequency
IF in RX mode
32
223.45 kHz
1894
423.22 MHz
433.92 MHz
32
223.45 kHz
1942
433.92 MHz
433.92 MHz
10.7 MHz
16
446.91 kHz
1919
857.60 MHz
868.30 MHz
16
446.91 kHz
1943
868.30 MHz
868.30 MHz
10.7 MHz
18
397.25 kHz
766
304.30 MHz
315.00 MHz
18
397.25 kHz
793
315.00 MHz
315.00 MHz
10.7 MHz
32
223.45 kHz
4047
904.30 MHz
915.00 MHz
32
223.45 kHz
4095
915.00 MHz
915.00 MHz
10.7 MHz
In stand-alone user mode, the transceiver can be set to Standby, Receive, Transmit or Idle mode (only PLL
synthesizer active) via control pins RE/SCLK and TE/SDTA. The modulation scheme and the LNA gain are
set by pins ASK/FSK and GAIN_LNA, respectively.
2.1.2
Operation Mode
Operation mode
RE/SCLK
TE/SDTA
Standby
0
0
Receive
1
0
Transmit
0
1
Idle
1
1
Note: Pins with internal pull-down
39012 07122 02
Rev. 006
Page 5 of 24
EVB Description
June/08
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVB7122-868-ASK-A | 制造商:MELEXIS 制造商全称:Melexis Microelectronic Systems 功能描述:27 to 930MHz Transceiver Evaluation Board Description |
| EVB7122-868-ASK-C | 制造商:MELEXIS 制造商全称:Melexis Microelectronic Systems 功能描述:27 to 930MHz Transceiver Evaluation Board Description |
| EVB7122-868-FM-A | 制造商:MELEXIS 制造商全称:Melexis Microelectronic Systems 功能描述:27 to 930MHz Transceiver Evaluation Board Description |
| EVB7122-868-FM-C | 制造商:MELEXIS 制造商全称:Melexis Microelectronic Systems 功能描述:27 to 930MHz Transceiver Evaluation Board Description |
| EVB7122-868-FSK-A | 制造商:MELEXIS 制造商全称:Melexis Microelectronic Systems 功能描述:27 to 930MHz Transceiver Evaluation Board Description |
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