參數(shù)資料
型號： 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別系統(tǒng)（ISS）的
文件頁數(shù)： 13/75頁
文件大小： 1061K
代理商： TDA7540B
TDA7540B
Electrical specifications
13/75
14.17
I
27
,I
28
Charge current high
narrow
TISS, ISSCTL = 1
-110
μ
A
14.18
I
27
,I
28
I
27
,I
28
V
27
,V
28
V
27
,V
28
Discharge current low
TISS, ISSCTL = 0
1
μ
A
μ
A
14.19
Discharge current high
TISS, ISSCTL = 0
15
14.20
Low voltage
ISSCTL = 0
0.1
V
14.21
High voltage
ISSCTL = 1
4.9
V
ISS Filter Switch Threshold
14.22
V
27
,V
28
V
27
,V
28
V
27
,V
28
V
27
,V
28
I
3
I
3
I
3
I
3
DEV
WTH
DEV
WTH
RATIO
min
RATIO
max
Referred to threshold
Threshold ISS on
ISSCTL = 0
3
V
14.23
Threshold ISS off
ISSCTL = 0
1
V
14.24
Threshold ISS narrow on
ISSCTL = 0
4
V
14.25
Threshold ISS narrow off
ISSCTL = 0
2
V
μ
A
μ
A
μ
A
μ
A
14.26
Charge current low
TDEV
-25
14.27
Charge current high
TDEV
-39
14.28
Discharge current low
TDEV
1
14.29
Discharge current high
TDEV
15
14.30
Internal low threshold
DWTH
30
kHz
14.31
Internal high threshold
DWTH
75
kHz
14.32
Referred to threshold
DTH
1
14.33
DTH
1.5
15
Softmute
15.1
V
ANT
V
ANT
Upper startpoint
SMTH, SMD, SLOPE = 0
10
dB
μ
V
dB
μ
V
15.2
lower startpoint
SMTH, SMD, SLOPE = 0
3
15.3
a
SMmin
Min. softmute depth
SMD, SLOPE = 0,
SMTH
Upper
SMD, SLOPE = 0,
SMTH
Upper
18
dB
15.4
a
SMmax
Max. softmute depth
36
dB
15.5
a
SMTHISS
Mute depth threshold for
ISS filter on
SMCTH
0.2
1
2
dB
15.6
V
ACTH
Internal AC mute
threshold
ACM
60
340
mV
15.7
a
SMAC
I
49
I
49
AC mute depth
ACMD
4
10
dB
μ
A
μ
A
15.8
Charge current
-47.5
15.9
Discharge current
2.5
16
S/N MPX
16.1
(S+N)/N
V
ANT
= 60dB
μ
V,
dev.= 40kHz,LP=15KHz
deemphasis t = 50
μ
s
66
69
dB
Table 5.
Electrical characteristics (continued)
(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, dev= 40kHz, f
MOD
= 1kHz, f
Xtal
= 10.25MHz, in application circuit, unless
otherwise specified).
Item
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
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