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TDA7421 数据表(PDF) 5 Page - STMicroelectronics

部件名 TDA7421
功能描述  AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS
PDF  38 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7421 数据表(HTML) 5 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS
DC PARAMETERS (Tamb = 25°C; Vcc = 8.5V, Vdd = 5V unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
DIG Vdd
Digital Supply Voltage
4.75
5.25
V
DIG Idd
Digital Supply Current
AM MODE
4.0
4.6
5.2
mA
FM MODE
3.5
4.0
4.5
mA
PLL VCC
PLL Supply Voltage
7.5
10
V
PLL ICC
PLL Supply Current
AM MODE
1.2
1.6
2.0
mA
FM MODE
2.5
3.0
3.5
mA
RF VCC
RFSupply Voltage
7.5
10
V
RF ICC
RF Supply Current
AM MODE
15.0
17.5
20.0
mA
FM MODE
10.0
13.0
16.0
mA
IF1 VCC
IF1 Supply Voltage
7.5
10
V
IF1 ICC
IF1 Supply Current
AM MODE
2.2
2.7
3.2
mA
FM MODE
16.0
19.5
23.0
mA
IF2 VCC
IF2 Supply Voltage
7.5
10
V
IF2 ICC
IF2 Supply Current
AM MODE
8.5
10.5
12.5
mA
FM MODE
27.0
32.0
37.0
mA
OSC VCC
Oscillator Supply Voltage
7.5
10
V
OSC ICC
Oscillator Supply Current
AM MODE
14.5
17.0
19.5
mA
FM MODE
11.0
14.0
17.0
mA
TOTAL ICC
Total Supply Current
AM MODE
45.0
50.0
55.0
mA
FM MODE
73.0
81.0
89.0
mA
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Uni
fVCOmin
Minimum VCO Frequency
Vturn = 0, Europe/USA
Japan
80.9
55
98.2
65.4
MHz
MHz
fVCOmax
Maximum VCO Frequency
Vturn = VCC, Europe/USA
Japan
123.2
79.2
128
90
MHz
MHz
VOSC
Oscillator Amplitude
fosc = 108.8MHz, Europe/USA
fOSC = 72.3MHz, Japan
106
dBu
AC PARAMETERS
Ref: FM Test Circuit measure Vosc with high impedance FET probe
Voltage Controlled Oscillator (VCO)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Uni
fXTAL
Reference Frequency
10.25
MHz
VXTAL
Oscillator Amplitude
108
dBu
Reference Oscillator
Ref: AM Test Circuit measure VXTAL with high impedance FET probe
TDA7421
5/38



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