參數(shù)資料
型號(hào): TLC2932PWR
廠商: Texas Instruments, Inc.
英文描述: HIGH-PERFORMANCE PHASE-LOCKED LOOP
中文描述: 高性能鎖相環(huán)
文件頁(yè)數(shù): 17/24頁(yè)
文件大小: 418K
代理商: TLC2932PWR
TLC2932
HIGH-PERFORMANCE PHASE-LOCKED LOOP
SLAS097E – SEPTEMBER 1994 – REVISED MAY 1997
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
basic design example (continued)
Assume the loop has to have a 100
μ
s settling time (t
s
) with a countdown N = 8. Using the Type 1, second order
response curves of Figure 26, a value of 4.5 radians is selected for
ω
n
t
s
with a damping factor of 0.7. This
selection gives a good combination for settling time, accuracy, and loop gain margin. The initial parameters are
summarized in Table 5. The loop constants, K
V
and K
p
, are calculated from the data sheet specifications and
Table 6 shows these values.
The natural loop frequency is calculated as follows:
nts
4.5
Then
n
4.5
100
s
45 k-radians sec
Since
Table 5. Design Parameters
PARAMETER
SYMBOL
VALUE
UNITS
Division factor
N
8
Lockup time
t
100
μ
s
rad
Radian value to selected lockup time
ω
nt
ζ
4.5
Damping factor
0.7
Table 6. Device Specifications
PARAMETER
SYMBOL
VALUE
UNITS
VCO gain
76.6
Mrad/V/s
fMAX
fMIN
VIN MAX
VIN MIN
PFD gain
70
MHz
KV
20
MHz
5
V
0.9
V
Kp
0.342357
V/rad
Table 7. Calculated Values
PARAMETER
SYMBOL
ω
n
VALUE
UNITS
Natural angular frequency
45000
rad/sec
K = (KV
Kp)/N
Lag-lead filter
Calculated value
Nearest standard value
3.277
Mrad/sec
R1
15870
16000
Calculated value
Nearest standard value
R2
308
300
Selected value
C1
0.1
μ
F
相關(guān)PDF資料
PDF描述
TLC2933PW HIGH-PERFORMANCE PHASE-LOCKED LOOP
TLC2933PWLE HIGH-PERFORMANCE PHASE-LOCKED LOOP
TLC2942PW HIGH-PERFORMANCE DUAL PHASE-LOCKED LOOP BUILDING BLOCK
TLC32040C ANALOG INTERFACE CIRCUITS
TLC32040I ANALOG INTERFACE CIRCUITS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLC2933AIPW 功能描述:鎖相環(huán) - PLL PHASE LOCKED LOOP RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
TLC2933AIPWG4 功能描述:鎖相環(huán) - PLL PHASE LOCKED LOOP RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
TLC2933AIPWR 功能描述:鎖相環(huán) - PLL PHASE LOCKED LOOP RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
TLC2933AIPWRG4 功能描述:鎖相環(huán) - PLL PHASE LOCKED LOOP RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
TLC2933IPW 功能描述:鎖相環(huán) - PLL Phase Locked Loop RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray