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參數(shù)資料
| 型號(hào)： | MC2800 |
| 廠(chǎng)商： | Motorola, Inc. |
| 英文描述： | FSK FM IF Receiver(FSK FM IF 接收器) |
| 中文描述： | FSK信號(hào)調(diào)頻（FSK信號(hào)調(diào)頻中頻接收器中頻接收機(jī)） |
| 文件頁(yè)數(shù)： | 9/28頁(yè) |
| 文件大?。?/td> | 473K |
| 代理商： | MC2800 |
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MC2800
9
MOTOROLA RF/IF DEVICE DATA
PIN FUNCTION DESCRIPTION
(continued)
Pin
Description
Schematic (Excluding ESD)
Symbol
17
IF1 Out
VCC
1.5 k
17
IF1 Out
First IF Amplifier output.
18
Gnd
18
Gnd
IF Amplifier
IF Limiter, RSSI
Ground pin for IC covering Pins 14 through 20.
19
IF1 In
20
μ
A
VCC
19
IF1 In
First IF Amplifier input.
20
VCC
100 pF
VCC
20
1.0
μ
F
Main Analog Power Supply for the circuit.
21
Mix Out
RF Pwr
24
Mix Out
21
1.5 k
Mixer Output.
22
Mix Gnd
Mi I
Mix In
LO+
LO–
Ground pin for the RF Part.
23
Mix In
Mix Gnd
22
23
Mixer input relative to Pin 22.
24
RF Pwr
RF Pwr
24
100 pF
1.0
μ
F
Osc
Mixer
Power Supply for the RF part. It is not
internally connected to the other Power
Supply. It must be connected externally to Vreg
1.0 V, with the appropriate decoupling.
25
26
Osc E
Osc B
RF Pwr
24
Osc B
26
Osc E
25
10
pF
10
pF
RF Pwr
LO
15
k
These pins form the reference oscillator when
connected to an external parallel–resonant
crystal (17.445 MHz typical).
NOTE:
Care in PCB layout should be taken to avoid compromising of sensitivity performance.
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