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参数资料
| 型号： | MC44827 |
| 厂商： | Motorola, Inc. |
| 英文描述： | LOW-POWER PLL TUNING CIRCUIT |
| 中文描述： | 低功耗锁相环调谐电路 |
| 文件页数： | 2/8页 |
| 文件大小： | 157K |
| 代理商： | MC44827 |
MC44827/27B
2
MOTOROLA ANALOG IC DEVICE DATA
Figure 1. Representative Block Diagram
This device contains 3,204 active transistors.
Gnd
Test
Logic
Buffers
Latches
P–On
Reset
3–Wire Bus
Receiver
Latches
Phase
Comp
Ref
Divider
Osc
Latch Control
Program Divider
15 Bit
Latches B
Latches A
÷
8
Prescaler
Preamp 1
DTB2
POR
Operational
Amplifier
Vref
60 k (1)
DTB1
CL
Data
RL
DTF
Fout
TDI
Fout
Fref
T5
T0
…
T2
T4
4
6
15
10
11
12
13
14
5
6
7
5.0 V
Fout
Fref
9
16
1
2
8
EN
DA
CL
HF In
VCC1
VCC3 12 V
VTUN
VCC2 33 V
Amp In
Lock
XTAL
B3
B2
B1
B0
DTS, EN
512/1024
B = 1024 Only
4
15
3
12 V
NOTE:
1.This part may be used with an external pull–up resistor of 20 k
to remain compatible with MC44817/17B
designed tuners. Pin 6 is left open. The internal pull–up can also be used with an external resistor in parallel.
Shift Register
15 Bit
MAXIMUM RATINGS
(TA = 25
°
C, unless otherwise noted.)
Rating
Pin
Value
Unit
Power Supply Voltage (VCC1)
Band Buffer “Off” Voltage
7
6.0
V
10–13
14.4
V
Band Buffer “On” Current
10–13
50
mA
Band Buffer Pin Shorted to Ground or VCC3 (Short Circuit Duration) (Note 1)
Operational Amplifier Power Supply Voltage (VCC2)
Operational Amplifier Pin Shorted to Ground or VCC2 (Short Circuit Duration)
Power Supply Voltage (VCC3)
Storage Temperature
10–13
Continuous
–
6
40
V
5
Continuous
–
14
14.4
V
°
C
°
C
s
–
–65 to +150
Operating Temperature Range
–
–20 to +80
Band Buffer Operation (Note 2) at 50 mA each Buffer All Buffers “On” Simultaneously
10–13
10
Operational Amplifier Output Voltage
5
VCC2
1.5
V
RF Input Level (80 MHz to 1.3 GHz)
8
Vrms
NOTES:
1.At VCC3 = VCC1 to 14.4 V and TA = –20
°
to +80
°
C one buffer “On” only.
2.At VCC3 = VCC1 to 14.4 V and TA = –20
°
to +80
°
C.
3.ESD data available upon request.
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