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TDA7227 数据表(PDF) 3 Page - STMicroelectronics

部件名 TDA7227
功能描述  SINGLE-CHIP AM/FM RADIO WITH FRONT-END
PDF  5 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7227 数据表(HTML) 3 Page - STMicroelectronics

  TDA7227 Datasheet HTML 1Page - STMicroelectronics TDA7227 Datasheet HTML 2Page - STMicroelectronics TDA7227 Datasheet HTML 3Page - STMicroelectronics TDA7227 Datasheet HTML 4Page - STMicroelectronics TDA7227 Datasheet HTML 5Page - STMicroelectronics  
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background image
BFP
13
14
15
16
17
18
11
12
10
1
2
345
6
789
AMRF IN
FMRF OUT
FM OSC
AM OSC
DE T OUT
BAND S/W
AGC
QUAD DET
AMIF IN
TUN LED
GND2
FMIF IN
AM MIXER
FM MIXER
GND1
FMRF IN
V
V
CC1
CC2
CC
V
(3v)
FMIF IN
T1
T2
SFE
10.7MA5
SFU
455B
560Ω
L1
L2
L3
T3
AM
FM
100nF
8.2nF
5.6kΩ
Ω
2.2k
2.2mH
K
22nF
33nF
33
µF
7227-03.EPS
TEST CIRCUIT
ELECTRICAL CHARACTERISTICS
TA =25
oC, VCC = 3V
F/E
: f = 100MHz, fm = 1kHz
FM IF : f = 10.7MHz, f = + 22.5kHz, fm = 1kHz
AM
: f = 1MHz, m = 30%, fm =1kHz
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VS
Supply Voltage
1.8
3
7
V
ICC
Supply Curre nt
VIN = 0, FM mode
VIN = 0, AM mode
9
7
mA
mA
VIN (lim)
FM F/E Input Limiting Voltage
- 3dB limiting
10
dB
µ
FM SECTION
VIN (lim)
Input Limiting Voltage
- 3dB limiting
44
dB
µ
VO
Recovered Output Voltage
VIN = 80dB
µ
80
mV
S/N
Signal to Noise Ratio
VIN = 80dB
µ
70
dB
THD
Total Harmonic Distorsion
VIN = 80dB
µ
0.4
%
AMR
AM Rejection Ratio
VIN = 80dB
µ
50
dB
AM SECTION
GV
Gain
VIN = 26dB
µ
40
mV
VO
Recovered Output Voltage
VIN = 60dB
µ
60
mV
S/N
Signal to Noise Ratio
VIN = 60dB
µ
44
dB
THD
Total Harmonic Distorsion
VIN = 60dB
µ
1.0
%
RO
Pin 12 Output Resistance
FM mode
AM mode
5
5
k
Ω
k
Ω
TDA7227
3/5



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