LV25200M Datasheet, PDF (6/45 Pages) Sanyo Semicon Device – Bi-CMOS IC Single chip Tuner IC for Car Radio

LV25200M
[AM characteristics] AM AMANT input
Parameter
Symbol
Conditions
CCB Command
min typ max Unit
5-1 Practical sensitivity
5-2 Detection output
5-3 AGC-F.O.M
5-4 Signal-to-noise ratio
5-5 Total harmonic
distortion ratio - 1
5-6 Total harmonic
distortion ratio - 2
5-7 AM HCC output
attenuation
5-8 S-meter DC output
5-9 S-meter AC output
5-10 Wide band AGC
sensitivity
5-11 SD sensitivity
S/N-30
Vo-AM
VAGC-FOM
S/N-AM
THD-AM-1
THD-AM-2
AM HCC
VSMAMDC-1
1MHz, 30dBμV, fm=1kHz,
30%mod, pin 25
1MHz, 74dBμV, fm=1kHz,
30%mod, pin 25
1MHz, 74dBμV,
output reference,
input width at which the output
decreases by 10dB,
pin 25
1MHz, 74dBμV, fm=1kHz,
30%mod
1MHz, 74dBμV, fm=1kHz,
80%mod
1MHz, 120dBμV, fm=1kHz,
80%mod
1MHz, 74dBμV, fm=4kHz,
30%mod, V29=3V→0.6V, 25pin
No input, 38pin DC output
VSMAMDC-2
VSMAMDC-3
VSMAMAC-1
1MHz, 30dBμV, non-mod,
38pin DC output
1MHz, 130dBμV, non-mod,
38pin DC output
No input, 40pin DC output
VSMAMAC-2 1MHz, 74dBμV, non-mod,
40pin DC output
W-AGCsen1 1.4MHz, input at V48=0.7V
SD-senAM 1MHz, ANT input level at which
the SD pin is turned ON
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36 37 26 26 26 26 26
37 37 26 26 26 26 26
20
84 105
50 54.5
51
60
0.3
0.5
5
9
0 0.1
1.2 1.5
2.85 3.6
0
0.75
82
92
25
30
dB
131 mVrms
59 dB
dB
1%
1.5 %
13 dB
0.5 V
1.9 V
4.9 V
0.5 V
V
102 dBμV
35 dBμV
Function
1. AM / FM front-end block
FM Image rejection Mixer
AM Double balance Mixer
Pin diode drive AGC output
Keyed AGC adjustment
Differential IF amplifier
Wide AGC sensitivity setting
Narrow AGC sensitivity setting
Local oscillator
FM Local OSC divider
AM Local OSC divider
2. FM IF block
IF Limiter Amplifier 6 stages
S-meter shifter
S-meter output (DC/AC)
Multipath detector (dedicated FM S-meter)
Quadrature detector
AF preamplifier (Audio mute)
AFC output
Variable bandwidth control
4 bit DAC
4 bit DAC
4 bit DAC
160MHz to 260MHz
1/1 1/2 1/3
1/10, 1/8, 1/6, 1/4
5 bit DAC
Vnull adj-5bit, QDP adj-4bit
CF adj-5bit DAC
BW/Gain adj-5bit DAC
Gain adj-3bit DAC
(for setting filter)
450kHz
Continued on next page.
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