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參數資料
| 型號： | MC44827 |
| 廠商： | Motorola, Inc. |
| 英文描述： | LOW-POWER PLL TUNING CIRCUIT |
| 中文描述： | 低功耗鎖相環(huán)調諧電路 |
| 文件頁數： | 4/8頁 |
| 文件大?。?/td> | 157K |
| 代理商： | MC44827 |
MC44827/27B
4
MOTOROLA ANALOG IC DEVICE DATA
HF INPUT SENSITIVITY AND OVERLOAD CHARACTERISTICS
(VCC1 = 5.0 V, TA = 25
°
C.) (See Figure 2.)
Frequency Range
Pin
Min
Typ
Max
Unit
Type
DC Bias
8
–
1.6
–
V
A
80–150 MHz
8
10
–
315
mVrms
C
150–600 MHz
8
5.0
–
315
mVrms
C
600–950 MHz
8
10
–
315
mVrms
C
950–1300 MHz
8
50
–
315
mVrms
C
Figure 4. Pin Circuit Schematic
500
132 k
VCC1
96 k
96 k
1/2 VCC1
VCC1
96 k
96 k
1/2 VCC1
20 V
500
132 k
20 V
VCC1
96 k
96 k
1/2 VCC1
132 k
500
20 V
5.0 V
100
2.0 k
10 k
20 V
20 V
20 V
100
60 k
20 V
20 V
5.0 V
5.0 V
18 k
2.0 k
2.0 k
1.2
…
1.8 V
“On”/“Off”
“On”/“Off”
“On”/“Off”
“On”/“Off”
2.0 k
20 V
20 V
20 V
20 V
20 V
20 V
16 EN
Enable input
(3–wire bus)
15 Lock
Lock detector output
14 VCC3
Positive supply for integrated
band buffers (12 V)
13 B3
12 B2
11 B1
10 B0
9 Gnd
Circuit Ground
DA 1
Data input
(3–wire bus)
CL 2
Clock input (supplied
by a microprocessor
via 3–wire bus)
XTAL 3
Crystal oscillator
(3.2 MHz or 4.0 MHz)
AMP In 4
Negative input of
operation amplifier and
phase comparator output
VTUN 5
Operational amplifier
output which provides
the tuning voltage
VCC2 6
Operational amplifier
positive supply (33 V)
VCC1 7
Positive supply of
the circuit (5.0 V)
HF In 8
Input to
prescaler
VCC1
100 k
Band buffer outputs
can drive up to 30 mA
(40 mA at 0
°
to 80
°
C)
20 V
5.0 k
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