參數(shù)資料
型號(hào): TDA7540B
廠商: 意法半導(dǎo)體
英文描述: AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)
中文描述: 調(diào)幅/調(diào)頻收音機(jī)調(diào)諧器集成電路汽車與立體聲解碼器和智能識(shí)別系統(tǒng)(ISS)的
文件頁(yè)數(shù): 14/75頁(yè)
文件大?。?/td> 1061K
代理商: TDA7540B
Electrical specifications
TDA7540B
14/75
3.2.3
AM section
Table 6.
Electrical Characteristics
(T
amb
= 25°C, V
CC1
= V
CC2
= V
CC3
= V
CCST
= V
CCVCO
= V
CCMIX1
= V
CCMIX2
= V
CCIF1
= 8.5V,
f
RF
= 98MHz, m= 30%, f
MOD
= 400kHz, f
Xtal
= 10.25MHz, in application circuit, unless
otherwise specified).
Item
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
17
Global
17.1
V
ANT_us
Usable sensitivity
(S+N)/N = 26 dB
25
19
dB
μ
V
17.2
V
ANT
IF2 AGC Range
Ref.: V
INRF
= 60dB
μ
V,
Ref.: V
INRF
= 60dB
μ
V
50
52
dB
17.3
(S+N)/N
Signal to Noise Ratio
50
55
dB
17.4
a
IF
IF rejection
Ref: V
INRF
= 60dB
μ
V,
IF = 10.7MHz
70
80
dB
17.5
f
AF
Frequency response
Ref.: V
INRF
= 60dB
μ
V,
V
AF
= -3 dB
V
INRF
= 60dB
μ
V, m = 0.8
m = 0.3
V
INRF
= 120 dB
μ
V, m = 0.8
m = 0.3
3.6
kHz
17.6
THD
Total Harmonic Distortion
0.5
0.3
1.0
0.3
%
17.7
V
53
AF output level
V
INRF
= 60dB
μ
V
V
INRF
= 60dB
μ
, m=off
190
mV
RMS
17.8
V
24
IF output level
190
mV
RMS
dB
μ
V
dB
μ
V
17.9
V
4
Min. RF AGC threshold
Max. RF AGC threshold
WAGC
90
109
17.10
V
71
Min. IF AGC threshold
Max. IF AGC threshold
WAGC
90
109
dB
μ
V
dB
μ
V
17.11
V
71
Min. DAGC threshold
Max. DAGC threshold
DAGC
74
96
dB
μ
V
dB
μ
V
17.12
|
I
78max
|
AGC2 charge current
seek
160
μ
A
17.13
CCR
Charge current ratio
seek/seek off
30
18
AGC Voltage Driver Output
18.1
V
6
Max. AGC output voltage
3.5
V
18.2
V
6
|
I
6
|
Min. AGC output voltage
0.5
V
18.3
AGC current
100
μ
A
19
AGC PIN Diode Driver Output
19.1
I
7
AGC driver current
-2
mA
20
AM Mixer1 (10.7MHz)
20.1
R
IN
Input resistance
differential
100
k
20.2
C
IN
Input capacitance
differential
4
pF
20.3
R
OUT
Output impedance
differential
100
k
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