參數(shù)資料
型號(hào): TDA7427
廠商: STMICROELECTRONICS
元件分類: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 200 MHz, PDIP20
封裝: DIP-20
文件頁(yè)數(shù): 7/21頁(yè)
文件大?。?/td> 350K
代理商: TDA7427
LOCK DETECTOR & PLL MODE CONTROL
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0
PLL standby mode
0
1
PLL AM swallow mode
1
0
PLL AM direct mode
1
PLL FM mode
0
PD phase difference threshold 10ns
0
1
PD phase difference threshold 20ns
1
0
PD phase difference threshold 30ns
1
PD phase difference threshold 40ns
0
Not used in application mode
0
1
Activation delay = 4
fref
1
0
Activation delay = 6
fref
1
Activation delay = 8
fref
0
Digital output 1 at pin "dout1/inlock"
1
Inlock information at pin "dout1/inlock"
0
No lock detector controlled chargepump
1
Lock detector controlled chargepump
LDENA INLOCK
D3
D2
D1
D0
PM1
PM0
Bit name
Subaddress = 05H
IF COUNTER REFERENCE CONTROL 1 (LSB)
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
00000000
LSB = 0
00000001
LSB = 1
00000010
LSB = 2
11111100
LSB = 252
11111101
LSB = 253
11111110
LSB = 254
11111111
LSB = 255
IRC7
IRC6
IRC5
IRC4
IRC3
IRC2
IRC1
IRC0
Bit name
Subaddress = 06H
TDA7427
15/21
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