參數(shù)資料
型號(hào): MC12079
廠商: Motorola, Inc.
英文描述: MECL PLL COMPONENTS ±64/128/256 PRESCALER
中文描述: 梅奇爾PLL元件± 64/128/256預(yù)分頻器
文件頁(yè)數(shù): 2/4頁(yè)
文件大?。?/td> 73K
代理商: MC12079
MC12079
2
MOTOROLA RF/IF DEVICE DATA
ELECTRICAL CHARACTERISTICS
(VCC = 4.5 to 5.5 V; TA = –40 to 85
°
C, unless otherwise noted.)
Parameter
Symbol
Min
Typ
Max
Unit
Toggle Frequency (Sine Wave)
ft
0.25
3.4
2.8
GHz
Supply Current Output (Pin 2)
ICC
Vin
9.0
11.5
mA
Input Voltage Sensitivity
250–500 MHz
500–2800 MHz
400
100
1000
1000
mVpp
Divide Ratio Control Input High (SW)
VIH
VIL
Vout
VCC
Open
VCC
Open
VCC
Open
V
Divide Ratio Control Input Low (SW)
Output Voltage Swing
(CL = 12 pF; RL = 1.2 k
; IO = 2.7 mA)
1
(CL = 12 pF; RL = 2.2 k
; IO = 1.5 mA)
2
(CL = 12 pF; RL = 3.9 k
; IO = 0.85 mA)
3
1.0
1.6
Vpp
NOTES:
1.Divide ratio of
÷
64 at 2.8 GHz.
2.Divide ratio of
÷
128 at 2.8 GHz.
3.Divide ratio of
÷
256 at 2.8 GHz.
D
QB
C
Q
D
Q
C
QB
D
QB
C
Q
In
In
Out
Figure 1. Logic Diagram (MC12079)
D
Q
C
QB
D
QB
C
Q
D
QB
C
Q
D
QB
C
Q
D
QB
C
Q
SW2
SW1
Figure 2. AC Test Circuit
SINE WAVE GENERATOR
50
C1
C2
C3
VCC = 4.5 to 5.5 V
CL
RL
VCC
IN
IN
GND
OUT
EXTERNAL COMPONENTS
C1 = C2 = 1000 pF
C3 = 0.1
μ
F
CL = 12 pF (Including Scope and Jig Capacitance)
RL = 1.2 k
(for
÷
64 at 2.8 GHz)
SW2
SW1
相關(guān)PDF資料
PDF描述
MC12079D MECL PLL COMPONENTS ±64/128/256 PRESCALER
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