LV25200M_10 Datasheet, PDF (5/45 Pages) Sanyo Semicon Device – Single chip Tuner IC for Car Radio

LV25200M
[FM IF Filter characteristics] FM IF input
Parameter
Symbol
Conditions
CCB Command
min typ max Unit
2-1 IF variable filter
gain-narrow band
2-2 IF variable filter
2-3 IF variable filter
FIL-G-N
FIL-BW-N
FIL-BW-W
70dBμV, pin 54 AC (450kHz)
19 37 21 25 25 25 25
output non-mod,
After CF adjustment, fit in
through BW/G adjustment.
Narrow-Fix MODE
Pin 54 -AC output monitor.
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Confirm the 2dB or more level down
at the ±25kHz point with reference to
the center frequency of 450kHz.
-3dB bandwidth. Narrow-Fix MODE
Pin 54-AC output monitor.
19 37 23 25 25 25 25
Confirm no level down exceeding
3 dB at the ±80kHz point with
reference to the center frequency
of 450kHz.
-3dB bandwidth.
Wide-Fix MODE
79
84
89
2
dB
3 dB
[NC block] NC input (48pin), S-meter AC input (40pin)
Parameter
Symbol
Conditions
CCB Command
min typ max Unit
3-1 FM NC gate time
3-2 FM NC noise
sensitivity
3-3 FM NC noise
sensitivity
3-4 AM NC gate time
3-5 AM NC noise
sensitivity
FM τGATE
SN-DETOUT
SN-Vsm
AM τGATE(1)
SN
NC input, pulse cycle=1kHz,
38pin=2V applied,
pulse width=1μs,
at 100mVp-o pulse input (after
MVCO adjustment)
NC input (pin 48),
38pin=2V applied,
measure the pulse input level at
which the noise canceller starts
operation, pulse cycle=1kHz,
pulse width=1μs
S-meter (AC) input (pin 40),
38pin=0V applied,
measure the pulse input level at
which the noise canceller starts
operation, pulse cycle=1kHz,
pulse width=1μs
S-meter (AC) input (pin 40),
pulse cycle=1kHz,
pulse width=1μs,
measurement at pin 33.
38pin=1.5
S-meter (AC) input (pin 40),
measure the pulse input level at
which the noise canceller starts
operation, pulse cycle=1kHz,
pulse width=1μs
19 37 25 25 25 25 25
19 37 25 25 25 25 25
19 37 25 25 25 25 25
36 37 26 26 26 26 26
36 37 26 26 26 26 26
36
40
44 μs
17
30
43 mVp-o
46
mVp-o
345 450 555 μs
24
mVp-o
[Multipath-noise rejection circuit] MRC input (pin 41)
Parameter
Symbol
Conditions
CCB Command
min typ max Unit
4-1 MRC output
VMRC
4-2 MRC operation level MRC-ON
Pin 39 voltage when 3.5 V is
applied to V38
SG (AG5) out level when pin 38
=5V and pin 39=2.6V, f=70kHz
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19 37 25 25 25 25 25
2.76 2.96 3.16 V
50
71 100 mVrms
No.A0976-5/45