參數(shù)資料
型號: 74HCT7046ADB
廠商: NXP SEMICONDUCTORS
元件分類: PLL合成/DDS/VCOs
英文描述: PHASE LOCKED LOOP, PDSO16
封裝: PLASTIC, SSOP-16
文件頁數(shù): 11/38頁
文件大?。?/td> 468K
代理商: 74HCT7046ADB
December 1990
19
Philips Semiconductors
Product specication
Phase-locked-loop with lock detector
74HC/HCT7046A
VCO section
GND = 0 V; tr =tf = 6 ns; CL = 50 pF
SYMBOL PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT
VCC
(V)
OTHER
+25
40 to +85 40 to +125
min.
typ.
max.
typ.
max. min.
max.
f/T
frequency stability
with temperature
change
0.15
%/K
4.5
VI =VCOIN within
recommended
range;
R1 = 100 k
;
R2 =
∞;
C1 = 100 pf;
see Fig.16b
fo
VCO centre frequency
(duty factor = 50%)
11.0
17.0
MHz
4.5
VVCOIN = 1/2 VCC;
R1 = 3 k
; R2 = ∞;
C1 = 40 pF;
see Fig.17
f
VCO
frequency
linearity
0.4
%
4.5
R1 = 100 k
;
R2 =
∞;
C1 = 100 pF; see
Figs 18 and 19
δ
VCO
duty factor at VCOOUT
50
%
4.5
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