參數(shù)資料
型號(hào): ZL20200LDE
廠商: Zarlink Semiconductor Inc.
英文描述: Dual Band IS136/AMPS Transceiver
中文描述: 雙頻IS136/AMPS收發(fā)器
文件頁(yè)數(shù): 29/52頁(yè)
文件大?。?/td> 516K
代理商: ZL20200LDE
ZL20200
Data Sheet
29
Zarlink Semiconductor Inc.
Figure 14 - Transmit Output Stage Current versus Gain Control
TX<9:8> (bits 13:12) control the agc voltage (Vth) at which the output stage current starts reducing. Typical values
are shown in the table below:
TX<7:6> (bits 11,10) control the rate of current reduction as shown in Figure 14. Typical vales are shown in the
below:
TX<5:4> (bits 9:8) adjust the maximum current (Imax) of the transmit output stage. The gain of the output stage is
not changed. Typical values are shown in the table below:
TX<9>
TX<8>
Vth (V)
0
0
1.09
0
1
1.25
1
0
1.48
1
1
1.81
Table 12 - VGA Threshold Voltage
TX<7>
TX<6>
Slope (mA/V)
0
0
65
0
1
75
1
0
90
1
1
105
Table 13 - VGA Current Reduction
TX<5>
TX<4>
Current
0
0
25%
0
1
50%
1
0
Nominal
1
1
150%
Table 14 - Output Stage Current
Vagc
Icc
Imax
Imin
Vth
Slope
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