參數(shù)資料
型號: 74HCT9046A
廠商: NXP Semiconductors N.V.
英文描述: PLL with bandgap controlled VCO
中文描述: 鎖相環(huán)控制VCO的帶隙
文件頁數(shù): 27/40頁
文件大小: 240K
代理商: 74HCT9046A
1999 Jan 11
27
Philips Semiconductors
Product specification
PLL with bandgap controlled VCO
74HCT9046A
Filter design considerations for PC1 and PC2 of the HCT9046A
Figure 30 shows some examples of passive and active filters to be used with the phase comparators of the HCT9046A.
Transfer functions of phase comparators and filters are given in Table 4.
Table 4
Transfer functions of phase comparators and filters.
PHASE
COMPARATOR
Fig.30
FILTER TYPE
TRANSFER FUNCTION
EXPLANATION
PC1
a.
passive filter
without
damping
passive filter
with damping
b.
τ
1
= R3
×
C2;
τ
2
= R4
×
C2;
τ
3
= R4
×
C3;
A = 10
5
= DC gain amplitude
c.
active filter
with damping
PC2
d.
passive filter
with damping
A = 10
5
= limit DC gain
τ
1
= R3'
×
C2;
τ
2
= R4
×
C2;
τ
3
= R4
×
C3;
R3' = R
b
/17;
R
b
= 25 to 250 k
e.
active filter
with damping
A = 10
5
= DC gain amplitude
F
j
ω
(
)
j
ωτ
1
1
+
--------1
=
K
PC1
V
----------V r
=
F
j
ω
(
)
1
j
ω τ
1
ωτ
2
(
1
τ
2
+
)
+
------------------j
=
F
j
ω
(
)
1
j
ωτ
ωτ
1
+
1 A
=
1
--------------------
j
ωτ
2
j
ωτ
1
F
j
ω
(
)
1
j
ωτ
j
ωτ
1
+
1 A
----------------------------
=
1
--------------------
j
ωτ
2
j
ωτ
1
K
PC2
4
π
5
=
F
j
ω
(
)
1
j
ωτ
j
ωτ
1
+
1 A
----------------------------
=
1
--------------------
j
ωτ
2
j
ωτ
1
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參數(shù)描述
74HCT9046AD 功能描述:鎖相環(huán) - PLL PHASE LOCKED LOOP W/VCO 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
74HCT9046AD,112 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
74HCT9046AD,118 功能描述:鎖相環(huán) - PLL PLL BAND GAP CNTRL W/VCO 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
74HCT9046AD-T 制造商:PHILIPS-SEMI 功能描述:
74HCT9046AN,112 功能描述:鎖相環(huán) - PLL PLL BAND GAP CNTRL W/VCO 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