參數(shù)資料
型號： MC3371D
廠商： MOTOROLA INC
元件分類： 接收器
英文描述： LOW POWER FM IF
中文描述： FM, AUDIO SINGLE CHIP RECEIVER, PDSO16
封裝： PLASTIC, SO-16
文件頁數(shù)： 6/20頁
文件大?。?/td> 471K
代理商： MC3371D
MC3371 MC3372
6
MOTOROLA ANALOG IC DEVICE DATA
MC3371 PIN FUNCTION DESCRIPTION
OPERATING CONDITIONS
VCC = 4.0 Vdc, RFIn = 100
μ
V, fmod = 1.0 kHz, fdev = 3.0 kHz. MC3371 at fRF = 10.7 MHz (see Figure 11).
Internal Equivalent
Circuit
Pin
1
Symbol
OSC1
Description
Waveform
OSC1
2
VCC
1
15 k
The base of the Colpitts oscillator. Use
a high impedance and low capacitance
probe or a “sniffer” to view the wave–
form without altering the frequency.
Typical level is 450 mVpp.
2
OSC2
200
μ
A
OSC2
The emitter of the Colpitts oscillator.
Typical signal level is 200 mVpp. Note
that the signal is somewhat distorted
compared to that on Pin 1.
3
MXOut
3
4
MixerOut
VCC
1.5 k
Output of the Mixer. Riding on the
455 kHz is the RF carrier component.
The typical level is approximately
60 mVpp.
4
VCC
100
μ
A
Supply Voltage –2.0 to 9.0 Vdc is the
operating range. VCC is decoupled to
ground.
5
IFIn
1.8 k
7
51 k
DEC2
53 k
5
IFIn
6
DEC1
Input to the IF amplifier after passing
through the 455 kHz ceramic filter. The
signal is attenuated by the filter. The
typical level is approximately
50 mVpp.
6
7
DEC1
DEC2
60
μ
A
IF Decoupling. External 0.1
μ
F
capacitors connected to VCC.
8
Quad
Coil
10
VCC
8
Quad Coil
50
μ
A
Quadrature Tuning Coil. Composite
(not yet demodulated) 455 kHz IF
signal is present. The typical level is
500 mVpp.
相關(guān)PDF資料
PDF描述
MC3371DTB LOW POWER FM IF
MC3371P LOW POWER FM IF
MC3372 LOW POWER FM IF
MC3372D LOW POWER FM IF
MC3372DTB ECONOLINE: RSZ/P - 1kVDC
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