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TDA7540B Datasheet(PDF) 14 Page - STMicroelectronics

Part # TDA7540B
Description  AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)
PDF  75 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7540B Datasheet(HTML) 14 Page - STMicroelectronics

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Electrical specifications
TDA7540B
14/75
3.2.3
AM section
Table 6.
Electrical Characteristics
(Tamb = 25°C, VCC1 = VCC2 = VCC3 = VCCST= VCCVCO = VCCMIX1 = VCCMIX2 = VCCIF1 = 8.5V,
fRF = 98MHz, m= 30%, fMOD = 400kHz, fXtal = 10.25MHz, in application circuit, unless
otherwise specified).
Item
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
17
Global
17.1
VANT_us
Usable sensitivity
(S+N)/N = 26 dB
25
19
dB
µV
17.2
∆V
ANT
IF2 AGC Range
Ref.: VINRF = 60dBµV,
50
52
dB
17.3
(S+N)/N
Signal to Noise Ratio
Ref.: VINRF = 60dBµV50
55
dB
17.4
aIF
IF rejection
Ref: VINRF = 60dBµV,
IF = 10.7MHz
70
80
dB
17.5
fAF
Frequency response
Ref.: VINRF = 60dBµV,
∆VAF = -3 dB
3.6
kHz
17.6
THD
Total Harmonic Distortion
VINRF = 60dBµV, m = 0.8
m = 0.3
VINRF = 120 dBµV, m = 0.8
m = 0.3
0.5
0.3
1.0
0.3
%
17.7
V53
AF output level
VINRF = 60dBµV
190
mVRMS
17.8
V24
IF output level
VINRF = 60dBµ, m=off
190
mVRMS
17.9
V4
Min. RF AGC threshold
Max. RF AGC threshold
WAGC
90
109
dB
µV
dB
µV
17.10
V71
Min. IF AGC threshold
Max. IF AGC threshold
WAGC
90
109
dB
µV
dB
µV
17.11
V71
Min. DAGC threshold
Max. DAGC threshold
DAGC
74
96
dB
µV
dB
µV
17.12
|I78max|
AGC2 charge current
seek
160
µA
17.13
CCR
Charge current ratio
seek/seek off
30
18
AGC Voltage Driver Output
18.1
V6
Max. AGC output voltage
3.5
V
18.2
V6
Min. AGC output voltage
0.5
V
18.3
| I6 |
AGC current
100
µA
19
AGC PIN Diode Driver Output
19.1
I7
AGC driver current
-2
mA
20
AM Mixer1 (10.7MHz)
20.1
RIN
Input resistance
differential
100
k
Ω
20.2
CIN
Input capacitance
differential
4
pF
20.3
ROUT
Output impedance
differential
100
k
Ω



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