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參數(shù)資料
| 型號(hào)： | LV25200M |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 調(diào)諧器 |
| 英文描述： | 4-BAND, AUDIO TUNER, PQFP80 |
| 封裝： | 14 X 14 MM, QFP-80 |
| 文件頁(yè)數(shù)： | 13/16頁(yè) |
| 文件大小： | 517K |
| 代理商： | LV25200M |
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LV25200M
No.A0976-6/45
[AM characteristics] AM AMANT input
CCB Command
Parameter
Symbol
Conditions
IN1
IN2
IN3
-1
IN3
-2
IN3
-3
IN3
-4
IN3
-5
min
typ
max
Unit
5-1 Practical sensitivity
S/N-30
1MHz, 30dB
μV, fm=1kHz,
30%mod, pin 25
36
37
26
20
dB
5-2 Detection output
Vo-AM
1MHz, 74dB
μV, fm=1kHz,
30%mod, pin 25
36
37
26
84
105
131 mVrms
5-3 AGC-F.O.M
VAGC-FOM
1MHz, 74dB
μV,
output reference,
input width at which the output
decreases by 10dB,
pin 25
36
37
26
50
54.5
59
dB
5-4 Signal-to-noise ratio
S/N-AM
1MHz, 74dBμV, fm=1kHz,
30%mod
36
37
26
51
60
dB
5-5 Total harmonic
distortion ratio - 1
THD-AM-1
1MHz, 74dB
μV, fm=1kHz,
80%mod
36
37
26
0.3
1
%
5-6 Total harmonic
distortion ratio - 2
THD-AM-2
1MHz, 120dB
μV, fm=1kHz,
80%mod
36
37
26
0.5
1.5
%
5-7 AM HCC output
attenuation
AM HCC
1MHz, 74dB
μV, fm=4kHz,
30%mod, V29=3V
→0.6V, 25pin
36
37
26
5
9
13
dB
VSMAMDC-1
No input, 38pin DC output
36
37
26
0
0.1
0.5
V
VSMAMDC-2
1MHz, 30dB
μV, non-mod,
38pin DC output
36
37
26
1.2
1.5
1.9
V
5-8 S-meter DC output
VSMAMDC-3
1MHz, 130dB
μV, non-mod,
38pin DC output
36
37
26
2.85
3.6
4.9
V
VSMAMAC-1
No input, 40pin DC output
36
37
26
0
0.5
V
5-9 S-meter AC output
VSMAMAC-2
1MHz, 74dB
μV, non-mod,
40pin DC output
36
37
26
0.75
V
5-10 Wide band AGC
sensitivity
W-AGCsen1 1.4MHz, input at V48=0.7V
36
37
26
82
92
102 dB
μV
5-11 SD sensitivity
SD-senAM
1MHz, ANT input level at which
the SD pin is turned ON
37
26
25
30
35 dB
μV
Function
1. AM / FM front-end block
FM Image rejection Mixer
AM Double balance Mixer
Pin diode drive AGC output
Keyed AGC adjustment
4 bit DAC
Differential IF amplifier
Wide AGC sensitivity setting
4 bit DAC
Narrow AGC sensitivity setting
4 bit DAC
Local oscillator
160MHz to 260MHz
FM Local OSC divider
1/1 1/2 1/3
AM Local OSC divider
1/10, 1/8, 1/6, 1/4
2. FM IF block
IF Limiter Amplifier 6 stages
S-meter shifter
5 bit DAC
S-meter output (DC/AC)
Multipath detector (dedicated FM S-meter)
Quadrature detector
Vnull adj-5bit, QDP adj-4bit
450kHz
AF preamplifier (Audio mute)
AFC output
Variable bandwidth control
CF adj-5bit DAC
BW/Gain adj-5bit DAC
Gain adj-3bit DAC
(for setting filter)
Continued on next page.
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相關(guān)代理商/技術(shù)參數(shù) |
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