參數(shù)資料
型號(hào): LV25450PNW
廠商: SANYO SEMICONDUCTOR CO LTD
元件分類: 調(diào)諧器
英文描述: AUDIO TUNER, PQFP64
封裝: 10 X 10 MM, SQFP-64
文件頁數(shù): 37/40頁
文件大?。?/td> 1251K
代理商: LV25450PNW
LV25450PNW
No.A1668-6/40
Continued from preceding page.
Applied voltage
CCB Command
Parameter
Symbol
Conditions
Pin
28
Pin
34
Pin
50
Pin
2
IN1
IN2
IN3
-1
IN3
-2
min
typ
max
unit
Image cancellation
ratio (US)
IR US
98.1MHz reference, the amount
rejected at +21.4MHz
Trm-Bit D2-18=[0]:ON
APF-ADJ D32-19 to 16=[1010]:10
1.5
15 21 25 58
30
dB
Image cancellation
ratio (JPN)
IR JPN
83MHz reference, the amount
rejected at -21.4MHz
D1-28 to 26 = [010]
Trm-Bit D2-18=[1]:OFF
APF-ADJ D32-19 to 16=[1000]:8
1.5
22 13 27 25
25
dB
FM wide AGC on
sensitivity F1
WAGC ON-F1
fr = 102.1MHz
FM-Wide AGC-Bit
D32-3 to 0 = [0000] : minimum
0
3
15 13 25 13
78
85
92
dB
μV
FM wide AGC on
sensitivity F2
WAGC ON-F2
fr = 102.1MHz
FM-Wide AGC-Bit
D32-3 to 0 = [1111] : maximum
0
3
15 13 25 15
92
99
106
dB
μV
FM narrow AGC on
sensitivity F1
NAGC ON-F1
fr = 98.1MHz
FM-Narrow AGC-Bit
D32-7 to 4 = [0000] : minimum
0
3
15 13 25 16
70
77
84
dB
μV
FM narrow AGC on
sensitivity F2
NAGC ON-F2
fr = 98.1MHz
FM-Narrow AGC-Bit
D32-7 to 4 = [1111] : maximum
0
3
15 13 25 18
86
93
100
dB
μV
Practical sensitivity
S/N-31
Connected to an LA1787 (MPX, left
channel output) *HCC OFF
98.1MHz, 31dB
μV, fm = 1kHz,
22.5kHz-mod 62/63pin input
3
15 13 25 25
30
dB
Signal-to-noise ratio
S/N-90
Connected to an LA1787 (MPX, left
channel output)
98.1MHz, 90dB
μV, fm = 1kHz,
22.5kHz-mod 62/63pin input
0
15 13 25 25
54
57
dB
AM Characteristics : AM, AM-ANT inputs
Applied voltage
CCB Command
Parameter
Symbol
Conditions
Pin
28
Pin
34
Pin
50
Pin
2
IN1
IN2
IN3
-1
IN3
-2
min
typ
max
unit
DC Characteristics
Current drain-8V AM
ICCO-8V AM
No input, AM mode
I3+I27+I35+I54+I55+I61
3
33 15 26 26
36
46
56
mA
Current drain-5V AM
ICCO-5V AM
No input, AM mode
I16+I25+I41
3
33 15 26 26
15
19
23
mA
AM antenna dump
output current
IANTD-A
When pin 50 is connected to ground
The ANT-D (pin 52) output current
3
0
33 15 26 26
3.5
6
9
mA
AC Characteristics
First AM amplifier
gain
GAMP1
FM_N_IN1 (pin 46)
IF_OUT (pin 44), after CF matching,
10.7MHz mod = off 74dB
μV = Input
0
33 15 26 26
5.2
6.2
7.2
dB
Narrow IF AGC grain
(AM)
GIFAGCNA1
AM_ANALOG_IN (pin 39),
10.7OUTN (pin 30) Ratio of the input
to output signal levels
10.7MHz mod = off 100dB
μV-Input
D32-27 to 25 = [011]
0
33 15 26 26
-4.5
-2.5
-0.5
dB
Narrow IF AGC grain
(AM)
GIFAGCNA2
AM_ANALOG_IN (pin 39),
10.7OUTN (pin 30) Ratio of the input
to output signal levels
10.7MHz mod = off 80dB
μV-Input
D32-27 to 25 = [011]
3
33 15 26 26
23.5
25.5
27.5
dB
1dB compression
point AM - narrow
1DB POINT NA
AM_ANALOG_IN (pin 39),
10.7OUTN (pin 30)
10.7MHz mod = off
D32-27 to 25 = [011]
0
33 15 26 26
107
dB
μV
Continued on next page.
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