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參數(shù)資料
| 型號： | TDA7421N |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATIONS |
| 中文描述： | AM / FM調(diào)諧的汽車收音機及音響應(yīng)用 |
| 文件頁數(shù)： | 9/38頁 |
| 文件大?。?/td> | 337K |
| 代理商： | TDA7421N |
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TDA7421N
FM IF Amplifier 1
Ref: FM Test Circuit, measure input at V
FMAMP1IN
, output at V
FMAMP1OUT
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
R
IN,AMP1
Input Resistance
330
R
OUT,AMP1
Output Resistance
330
G
AMP1
Typical Gain
f
IN
= 10.7MHz
18.5
dB
IP3
AMP1
3rd Order Intermodulation
Distortion Intercept Point
f
d
= 10.7MHz; f
u1
= 10.8MHz;
f
u2
= 10.9MHz;
FBH3-0 set to 0100
dB
μ
V
CP1
AMP1
1dB Compression Point
f
IN
= 10.7MHz;
FBH3-0 set to 0100
dB
μ
V
FM IF Amplifier 2
Ref: FM Test Circuit, measure input at V
FMAMP2IN
, output at V
FMAMP2OUT
R
IN,AMP2
Input Resistance
f = 10.7MHz
330
R
OUT,AMP2
Output Resistance
f = 10.7MHz
330
G
MIN,AMP2
Minimum Gain
f
IN
= 10.7MHz, FBL1-0 set to 01
6
dB
G
MAX,AMP2
Maximum Gain
f
IN
= 10.7MHz, FBL1-0 set to 00
10
dB
IP3
AMP2
3rd Order Intermodulation
Distortion Intercept Point
f
d
= 10.7MHz; f
u1
= 10.8MHz;
f
u2
= 10.9MHz;
FBL3-0 set to 0100
dB
μ
V
CP1
AMP2
1dB Compression Point
f
IN
= 10.7MHz;
FBL3-0 set to 0100
dB
μ
V
FM Limiter, Field Strengh Meter and Demodulator
Ref: FM Test circuit, measure:
- Input at V
FMLIMIN
, f
IN
= 10.7MHz
- FS Meter output at V
FMSMETER
(FMADJ set to 0, FSL4-0 set to 00000)
- demodulator adjustment output at V
FSMETER
(FMADJ set to 1)
R
IN
,
LIM
Limiter Input Resistance
330
G
LIM
Limiter Gain
90
dB
LS
Limiting Sensitivity
23
dB
μ
v
SM1
Smeter 1
V
FMLIMIN
= 40dB
μ
V
1.1
V
SM2
Smeter 2
V
FMLIMIN
= 60dB
μ
V
2.3
V
SM3
Smeter 3
V
FMLIMIN
= 80dB
μ
V
3.7
V
SM4
Smeter 4
V
FMLIMIN
= 100dB
μ
V
4.9
V
SM
MINSHIFT
Smeter Minimum Shift Voltage
V
FMLIMIN
= 70dB
μ
V;
FSL4-0 set to 00000
0.0
V
SM
MAXSHIFT
Smeter Maximum Shift Voltage
V
FMLIMIN
= 70dB
μ
V;
FSL4-0 set to 11111
1.5
V
ELECTRICAL CHARACTERISTICS
(Continued)
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| TDA7427 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
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