參數(shù)資料
型號(hào): TRF2050PW
廠商: TEXAS INSTRUMENTS INC
元件分類: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO20
封裝: PLASTIC, SO-20
文件頁數(shù): 32/34頁
文件大?。?/td> 543K
代理商: TRF2050PW
TRF2050
LOW-VOLTAGE 1.2-GHz FRACTIONAL-N/INTEGER-N SYNTHESIZER
SLWS030E– JUNE 1996 – REVISED OCTOBER 2000
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
charge-pump current output definitions
I2
I1
I2
I1
Current
Voltage
IOUT REL
IOUT MATCH
ISINK
ISOURCE
IOUT REL
V1
V2
Figure 1. Charge-Pump Output Current Definitions
The relative output current variation is defined as the percent difference between charge-pump current output
at two charge-pump output voltages and the mean charge-pump current output (see Figure 1):
DI
OUT REL
I
OUT MEAN
+ 2
I
2
–I
1
I
2 )
I
1
× 100%; with V
1 +
0.7 V, V
2 +
V
DDA
–0.8 V.
Output current matching is defined as the difference between charge-pump sinking current output and
charge-pump sourcing current output at a given charge-pump output (see Figure 1).
IOUT MATCH = ISINK – ISOURCE; with V1 ≤ Voltage ≤ V2.
serial-data interface timing
DATA
CLOCK
STROBE
tsu_Data
th_Data
tw_CLKHI
tw_CLKLO
tw_STRBHI
th_Strobe
D0
D1
D30
D31
VH
VL
VH
VL
VH
VL
Valid
Change
tsu_Strobe
Figure 2. Serial-Data Interface Timing
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