參數(shù)資料
型號(hào)： TLC2942IDBLE
廠商： TEXAS INSTRUMENTS INC
元件分類： PLL合成/DDS/VCOs
英文描述： PHASE LOCKED LOOP, 20 MHz, PDSO38
封裝： PLASTIC, SO-38
文件頁(yè)數(shù)： 7/29頁(yè)
文件大?。?/td> 473K
代理商： TLC2942IDBLE
TLC2942
HIGH-PERFORMANCE DUAL PHASE-LOCKED LOOP BUILDING BLOCK
SLAS146B – NOVEMBER 1996 – REVISED JUNE 1997
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 14
0.2
0.1
2
2.5
3.3
0.3
TEMPERATURE COEFFICIENT OF
OSCILLATION FREQUENCY
vs
BIAS RESISTOR
0.4
4
4.5
C
°
–
T
emperature
Coefficient
of
Oscillation
RBIAS – Bias Resistor – k
Frequency
–
%
/
VDD = 3 V
VCOIN = 1/2 VDD
TA = – 20°C to 75°C
3
3.5
(f
osc)
α
0
Figure 15
0.2
0.1
1.5
2.2
0.3
TEMPERATURE COEFFICIENT OF
OSCILLATION FREQUENCY
vs
BIAS RESISTOR
0.4
3.5
RBIAS – Bias Resistor – k
VDD = 5 V
VCOIN = 1/2 VDD
TA = – 20°C to 75°C
2
2.5
3
C
°
–
T
emperature
Coefficient
of
Oscillation
Frequency
–
%
/
(f
osc)
α
0
Figure 16
20
18
16
2.85
3
22
VCO OSCILLATION FREQUENCY
vs
VCO SUPPLY VOLTAGE
24
3.15
VDD – VCO Supply Voltage – V
RBIAS = 3.3 k
VCOIN = 1.5 V
TA = 25°C
–
VCO
Oscillation
Frequency
–
MHz
f osc
Figure 17
40
36
32
4.75
5
44
VCO OSCILLATION FREQUENCY
vs
VCO SUPPLY VOLTAGE
48
5.25
VDD – VCO Supply Voltage – V
RBIAS = 2.2 k
VCOIN = 1/2 VDD
TA = 25°C
–
VCO
Oscillation
Frequency
–
MHz
f osc
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