參數(shù)資料
型號： LV25450PNW
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)： 36/40頁
文件大?。?/td> 1251K
代理商： LV25450PNW
LV25450PNW
No.A1668-5/40
AC Characteristics
Operating Characteristics at Ta = 25°C, VCC = 8.0V, VDD = 5.0V, unless otherwise specified. Ratings for publications
* : These measurements are made using the Yamaichi Electronics IC51-0644-807 IC socket. An IHF bandpass filter is
used as the audio filter.
FM Characteristics - FM Front End Mixer Input (No dummy)
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 FM
ICCO-8V FM
No input, FM mode
I3+I27+I355+I54+I55+I61
3
15 13 25 25
43.2
54
64.8
mA
Current drain-5V FM
ICCO-5V FM
No input, FM mode
I16+I25+I41
3
15 13 25 25
20.8
26
31.2
mA
Regulator bias 3V
VREG3V
The pin 26 voltage
3
15 13 25 25
2.7
3
3.3
V
Regulator bias 4V
VREG4V
The pin 15 voltage
3
15 13 25 25
3.6
4
4.4
V
FM antenna dump
output current
IANTD-F
The pin 64 output current
(Pin 64 load = 100
Ω +Pin_Diode × 2
when 6.0V is applied to pin 2
0
6
15 13 25 25
4.5
7.5
11
mA
AC Characteristics
Crystal oscillator
frequency
FXTAL
D2-7, 6, 5 = [100]
3
15 13 25 25
4.5
MHz
Crystal oscillator level
VXTAL
D2-7, 6, 5 = [100] (reference value)
D32-08 = 0, D2-10, 9, 8 = [100]
3
15 13 25 25
15
mVrms
Crystal oscillator
buffer level
VXTAL OSC
OUT2
D2-7, 6, 5 = [100] (reference value)
D32-08 = 0, D2-10, 9, 8 = [100]
3
15 13 25 25
115
165
mVrms
VSMFM-1
10dB
μV, the pin 34 DC output, no
modulation
3
15 13 25 25B
0.65
0.95
1.25
V
VSMFM-2
30dB
μV, the pin 34 DC output, no
modulation
3
15 13 25 25B
0.95
1.25
1.55
V
VSMFM-3
50dB
μV, the pin 34 DC output, no
modulation
3
15 13 25 25B
2.10
2.15
2.20
V
VSMFM-4
70dB
μV, the pin 34 DC output, no
modulation
3
15 13 25 25B
3.1
3.4
3.7
V
S-meter DC output
* : Adjust the
shifter-bits with a
50dB
μV input so
that Vsm is set to
2.15V.
VSMFM-5
90dB
μV, the pin 34 DC output, no
modulation
3
15 13 25 25B
3.7
4
4.3
V
Total gain from mixer
to DIV IF amplifier
GMXDIV
FM_MIX_IN, DIV_OUT_IF (pin 32)
Ratio of the input to output signal
levels
98.1MHz mod = off, 70dB
μV-Input
1.5
15 13 25 25
16
19
22
dB
DIV IF amplifier gain
GDIVIF
IF_N_IN1 (pin 46),
DIV_OUT_IF (pin 32)
Ratio of the input to output signal
levels
10.7MHz mod = off, 88dB
μV-Input
3
15 13 25 25
4.5
7.5
10.5
dB
1dB compression
point driver IF
1DB POINT DIF
IF_N_IN1 (pin 46),
DIV_OUT_IF (pin 32)
Ratio of the input to output signal
levels 10.7MHz mod = off
3
15 13 25 25
111
dB
Narrow IF AGC grain
(FM)
GIFAGCNF1
FM_ANALOG_IN (pin 46),
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
15 13 25 25
-4.5
-2.5
-0.5
dB
Narrow IF AGC grain
(FM)
GIFAGCNF2
FM_ANALOG_IN (pin 46),
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
15 13 25 25
23.5
25.5
27.5
dB
1dB complession
point FM-Narrow
1DB POINT NF
FM_ANALOG_IN (pin 46),
10.7OUTN (pin 30)
10.7MHz mod = off
D32-27 to 2] = 011
0
15 13 25 25
107
dB
μV
Continued on next page.
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