參數(shù)資料
型號(hào)： TDA7222AD
廠商： 意法半導(dǎo)體
英文描述： 3V AM/FM ONE-CHIP RADIO
中文描述： 3V的調(diào)幅/調(diào)頻的單芯片無線電
文件頁數(shù)： 3/7頁
文件大?。?/td> 289K
代理商： TDA7222AD
ABSOLUTE MAXIMUM RATINGS
Symbol
V
S
I
LED
V
LED
T
oper
T
stg
Parameter
Value
9
10
10
-20, +70
-55, +150
Unit
V
mA
V
o
C
o
C
Supply Voltage
LED Current
LED Voltage
Operating Temperature
Storage Temperature
7
RECOMMENDED OPERATING CONDITIONS
Symbol
V
S
T
oper
Parameter
Value
1.8 to 7
0, +70
Unit
V
o
C
Supply Voltage
Operating Temperature
7
ELECTRICALCHARACTERISTICS
(unlessotherwisespecified)
T
A
= 25
o
C, V
CC
= 3V
F/E
FM IF : f = 10.7MHz,
f =
±
22.5kHz,f
m
= 1kHz
AM
: f = 1MHz, MOD = 30%, f
m
= 1kHz
MPX
: f
m
= 1kHz
: f = 83MHz, f
m
= 1kHz
Symbol
I
CC
(FM)
I
CC
(AM)
V
IN
(lim)
V
OSC
V
IN
(lim) IF
VOD
S/N
THD
AMR
V
L
G
V
VOD
S/N
THD
V
L
Parameter
Test Conditions
V
IN
= 0, FM mode
V
IN
= 0, AM mode
- 3dB limiting
f
OSC
= 72.3MHz
- 3dB limiting
V
IN
= 80dB
μ
V
IN
= 80dB
μ
V
IN
= 80dB
μ
V
IN
= 80dB
μ
I
L
= 1mA
V
IN
= 26dB
μ
V
IN
= 60dB
μ
V
IN
= 60dB
μ
V
IN
= 60dB
μ
I
L
= 1mA
FM mode
AM mode
Min.
Typ.
13.2
8.4
10.0
105
46
80
70
0.4
32
51
70
80
42
1.0
25
0.75
12.75
24
5
Max.
20
13.5
Unit
mA
mA
dB
μ
mV
RMS
dB
μ
mV
RMS
dB
%
dB
dB
μ
mV
RMS
mV
RMS
dB
%
dB
μ
k
k
k
k
Supply Current
F/E
Input Limiting Voltage
Local OSC Voltage
Input Limiting Voltage
Recovered OutputVoltage
Signal to Noise Ratio
Total Harmonic Distortion
AM Rejection Ratio
Lamp ON Sensitivity
Gain
Recovered OutputVoltage
Signal to Noise Ratio
Total Harmonic Distortion
Lamp ON Sensitivity
FM
IF
40
55
53
110
45
40
55
56
110
110
AM
20
30
R19
Pin 19 Output Resistance
R
IN
R
OUT
V
IN (Max.)
Stereo
MPX
Input Resistance
Output Resistance
Max. Composite Signal Input Voltage
L + R = 90%, P = 10%
f
m
= 1kHz, THD = 3%
350
mV
RMS
Sep
f
m
= 100Hz
f
m
= 1kHz
f
m
= 10kHz
Separation
L + R = 135mV
RMS
P = 15mV
RMS
25
32
32
32
dB
dB
dB
THD
Monaural
THD
Stereo
G
V
(MPX)
C.B.
Total Harmonic Distortion (monaural)
V
IN
= 150mV
RMS
0.2
%
Total Harmonic Distortion (stereo)
L + R = 135mV
RMS
P = 15mV
RMS
V
IN
= 150mV
RMS
V
IN
= 150mV
RMS
0.2
%
Voltage Gain
Channel Balance
-5
- 2
- 3
0
- 1
2
dB
dB
7
TDA7222A - TDA7222AD
3/7
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