MC44818 查看數據表（PDF） - Motorola => Freescale
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MC44818 Datasheet PDF : 8 Pages
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VCC1
5.0 V 7
Fout
Test
Fref
Logic
Gnd
9
16
AS
Data 1
Clock 2
P–On
Reset
I2C Bus
Receiver
MC44818
Representative Block Diagram
Bands Out 30 mA
(40 mA at 0° to 80°C)
VCC3
13 12 11 10
14
12 V
DTB1
DTB2
POR
CL
Data
RL
DTF
B3 B2 B1 B0
Buffers
Latches
T13 T9, T12, T14
T10, T11
Latches
4
6
Shift Register
15 Bit
15
Latches A
Latches B
VTUN
5
VCC2
6
20 k
2.7 V
Operational
Amplifier
4
Amp In
Phase
Comp
15
Lock
Fout
Fref
512/1024
Ref
Divider
Osc
TDI
3
XTAL
8
HF Input
÷8
Prescaler
Program Divider
15 Bit
Latch Control
Fout
DTS, EN
This device contains 3,204 active transistors.
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.)
Rating
Pin
Value
Unit
Power Supply Voltage (VCC1)
Band Buffer “Off” Voltage
Band Buffer “On” Current
7
6.0
V
10–13
14.4
V
10–13
50
mA
Band Buffer – Short Circuit Duration (0 to VCC3) (Note 2) 10–13 Continuous –
Operational Amplifier Power Supply Voltage (VCC2)
6
40
V
Operational Amplifier Short Circuit Duration (0 to VCC2)
5
Continuous –
Power Supply Voltage (VCC3)
14
14.4
V
Storage Temperature
–
– 65 to +150 °C
Operating Temperature Range
–
– 20 to +80 °C
Band Buffer Operation (Note 1) at 50 mA each Buffer All 10–13
10
sec
Buffers “On” Simultaneously
Operational Amplifier Output Voltage
RF Input Level (10 MHz to 1.3 GHz)
5
VCC2
V
–
1.5
Vrms
NOTES: 1. At VCC3 = VCC1 to 14.4 V and TA = – 20° to + 80°C.
2. At VCC3 = VCC1 to 14.4 V and TA = – 20° to + 80°C one buffer “On” only.
2
MOTOROLA ANALOG IC DEVICE DATA
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