LV25400W Sanyo Semicon Device, LV25400W Datasheet - Page 7

• Manufacturer Part Number: LV25400W
• Description: DSP Tuner Front End
• Manufacturer: Sanyo Semicon Device

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Continued from preceding page.
AM narrow AGC on
sensitivity A1
AM narrow AGC on
sensitivity A2
Total AM gain
Practical sensitivity
THD_1
THD_2
Signal-to-noise ratio
Parameter
NAGC ON-A1
NAGC ON-A2
AMGAIN
S/N-33
THD-74
THD-77
S/N-74
Symbol
AM-ANT-IN = 1MHz, mod = off
The input level such that the ANT_D
(pin 52) level becomes 0.5V.
AM narrow AGC sensitivity control
setting (D32-7 to D32-4) : 0000 (the
minimum value)
AM-ANT-IN = 1MHz, mod = off
The input level such that the ANT_D
(pin 52) level becomes 0.5V.
AM narrow AGC sensitivity control
setting (D32-7 to D32-4) : 1111 (the
maxim value)
1MHz, 60dBµV, mod = off, the ration
of the AM_ANT input and the
10.7OUTN (pin 29) output levels
With an LA1787 connected
With a 1MHz, 33dBµV, fm = 1kHz,
30% modulation ANT input and the
IF AGC voltage = 3V add.
With a 1MHz, 74dBµV, fm = 1kHz,
80% modulation ANT input and the
IF AGC voltage adjusted so that the
IFAGCOUT level is 100dBµV.
With a 1MHz, 77dBµV, fm = 1kHz,
80% modulation ANT input and the
IF AGC voltage adjusted so that the
IFAGCOUT level is 100dBµV.
With an LA1787 connected
With a 1MHz, 74dBµV, fm = 1kHz,
80% modulation ANT input and the
IF AGC voltage adjusted so that the
IFAGCOUT level is 100dBµV.
With an LA1787 connected
With an LA1787 connected
Conditions
LV25400W
3
3
3
3
Applied voltage
33 44 26 30
33 44 26 32
33 44 26 32
33 44 26 32
33 44 26 32
33 44 26 32
33 44 26 32
CCB Command
min
33.5
52.5
60
75
20
typ
0.7
0.7
65
80
39
56
No.A0633-7/42
max
44.5
1.2
1.2
70
85
dBµV
dBµV
unit
dB
dB
dB
%
%
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