參數(shù)資料
型號(hào): PMB2347
廠商: INFINEON TECHNOLOGIES AG
英文描述: RF/IF Double PLL Frequency Synthesizer
中文描述: 射頻/中頻雙鎖相環(huán)頻率合成器
文件頁(yè)數(shù): 30/35頁(yè)
文件大?。?/td> 578K
代理商: PMB2347
standby2
Reference
5 - 11
PMB 2347
preliminary
Wireless Components
Specification, August 1999
Table 5-14Programming of CP Current of PLL2
c2
CP current 1
CP Current [mA]
Remark
0
Tristate
with 100μA reference current
1
1.0 mA
Table 5-15Programming of Charge Pump Pulse Width of both PLLs
c7
CPP width 1
CPP width 2
c6
Pulse Width [ns] typ.
Remark
0
0
1.6 ns
not recommended for PLL2
1
0
6.0 ns
0
1
9.0 ns
1
1
13.0 ns
Table 5-16Standby of Power Down Programming of both PLLs
Control Bits
Mode
Affected Output Pins
Z: High Impedance (Tristate)
c9
standby 1
c8
standby 2
Pin 11
LD/fo
Pin 3
CP1
Pin 18
CP2
0
0
standby1
off
Z
Z
1
0
off
Z
Z
0
1
standby1
off
Z
Z
1
1
Operation Mode
active
active
active
Table 5-17Programming of Synchronous/Asynchronous Mode of PLL1
c13
Sync/Async
Synchronous/Asynchronous Mode
0
Asynchronous Mode of PLL 1
1
Synchronous Mode of PLL 1
Table 5-18Programming of PD Polarity of both PLLs
Control Bit
PD Polarity
c10
PD Polarity
0
negative Polarity
1
positive Polarity
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