参数资料
型号: 4431-T-B1 B 434
厂商: Silicon Laboratories Inc
文件页数: 31/47页
文件大小: 799K
描述: KIT DEV TEST EZRADIOPRO SI4431
标准包装: 1
附件类型: 测试卡,收发器,434MHz
适用于相关产品: EZRadioPRO?
Si4430/31/32-B1
Rev 1.1
31
3.5.7. TX Data Rate Generator
The data rate is configurable between 0.123256 kbps. For data rates below 30 kbps the txdtrtscale bit in register
70h should be set to 1. When higher data rates are used this bit should be set to 0.
The TX date rate is determined by the following formula in bps:
For data rates higher than 100 kbps, Register 58h should be changed from its default of 80h to C0h. Non-optimal
modulation and increased eye closure will result if this setting is not made for data rates higher than 100 kbps. The
txdr register is only applicable to TX mode and does not need to be programmed for RX mode. The RX bandwidth
which is partly determined from the data rate is programmed separately.
Add  R/W  Function/Description
D7
D6
D5
D4
D3
D2
D1
D0
POR Def.
6E    R/W
TX Data Rate 1
txdr[15]   txdr[14]  txdr[13]  txdr[12]   txdr[11]    txdr[10]   txdr[9]   txdr[8]
0Ah
6F    R/W
TX Data Rate 0
txdr[7]
txdr[6]    txdr[5]    txdr[4]
txdr[3]
txdr[2]    txdr[1]   txdr[0]
3Dh
DR_TX (bps)
txdr 15:0
[
]   1 MHz
?/DIV>
2
16  5  txdtrtscale
?/DIV>
+
-------- ----------------- ----------------- -------- -
=
txdr[15:0]
DR_TX(bps)   2
16  5  txdtrtscale
?/DIV>
+
?/DIV>
1 MHz
--------------- ----------------- ---------------- ----------------- ----------------- -- -
=
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