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LA1787NM View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
View to exact match
LA1787NM
SANYO
SANYO -> Panasonic SANYO
LA1787NM Datasheet PDF : 6 Pages
1 2 3 4 5 6
LA1787NM
Continued from preceding page.
Parameter
Symbol
Conditions
Switch settings
Ratings
Unit
1 2 3 4 5 6 7 8 9 10 min typ max
HCC output
AttHCC-1 10.7MHz, 100dBµ, 10kHz,
ON B OFF B
ON OFF OFF ON
0.5 4.5 8.5 dB
attenuation (1)
L+R = 90%, pilot = 10%,
V29 = 3V0.6V, pin 15
HCC output
AttHCC-2 10.7MHz, 100dBµ, 10kHz,
ON B OFF B
ON OFF OFF ON
6 10 14 dB
attenuation (2)
L+R = 90%, pilot = 10%,
V29 = 3V0.1V, pin 15
Input limiting
Vi-lim
100dBµ, 10.7MHz, 30% modulation ON B OFF B
ON OFF OFF ON ON 33 40 47 dBµ
voltage
The IF input such that the output is
-3dB down referenced to the input
Muting
Vi-mute The IF input level when V33 = 2V, ON B OFF B
ON OFF OFF ON
27 35 43 dBµ
sensitivity
no modulation
SD sensitivity SD-sen1FM The IF input such that the IF counter ON B OFF B OFF OFF OFF OFF ON
54 62 70 dBµ
(1)
buffer output goes to the on state
(100mVrms or higher)
SD sensitivity SD-sen2FM The IF input such that the SD pin goes ON B OFF B ON OFF OFF OFF ON
54 62 70 dBµ
(2)
to the on state, no modulation
IF counter buffer VIFBUFF-FM 10.7MHz, 100dBµ, no modulation,
output
The pin 23 output
ON B OFF B OFF OFF OFF OFF ON
130 200 270 mVrms
S-meter output
VSMFM-1 No input, the pin 24 DC output,
no modulation
ON B OFF B
OFF OFF OFF ON
0.0 0.1 0.3 V
VSMFM-2 50dBµ, the pin 24 DC output,
no modulation
ON B OFF B
OFF OFF OFF ON
0.4 1.0 1.5 V
VSMFM-3 70dBµ, the pin 24 DC output,
no modulation
ON B OFF B
OFF OFF OFF ON
2.0 2.7 3.5 V
VSMFM-4 100dBµ, the pin 24 DC output,
no modulation
ON B OFF B
OFF OFF OFF ON
4.7 5.5 6.2 V
Muting
BW-mute 100dBµ, the bandwidth when V33 = ON B OFF B
OFF OFF OFF ON
150 220 290 kHz
attenuation
2V, no modulation
Muting drive
output
VMUTE-100 100dBµ, 0dBµ, the pin 33 DC output, ON B OFF B
no modulation
OFF OFF OFF ON
0.00 0.03 0.20 V
FM Front End Mixer Input
N-AGC on input VNAGC 83MHz no modulation, the input such ON A ON B
that pin 2 becomes 2.0V or lower
W-AGC on
VWAGC 83MHz no modulation, the input such ON A ON B
input
that pin 2 becomes 2.0V or lower
(when the keyed AGC is 4.0V)
Conversion gain
A. V
83MHz, 80dBµ, no modulation, the ON A ON B
FE CF output
Oscillator buffer VOSCBUFFFM No input
output
ON A ON B
Noise Canceller Block - NC Input (pin 30)
ON OFF OFF
ON OFF OFF
ON OFF OFF
ON OFF OFF
81 88 95 dBµ
104 110 116 dBµ
19 30 48 mVrms
85 110 165 mVrms
Gate time
τ GATE f = 1kHz, 1µs, with a 100mVp-o pulse ON
input
Noise sensitivity
SN
The 1kHz 1µs pulse input level such ON
that noise canceller operation starts
Noise canceller
SN-NC The pulse exclusion effect due to
ON/
effect
noise canceller operation.
OFF
Repetition frequency for a 1µs pulse.
The ratio of the FM mode pin 15
output referenced to the pin 15 output
in 10kHz 150mVp-o AM mode.
Multipath Rejection Circuit - MRC Input (pin 27)
OFF A ON OFF OFF
OFF A ON OFF OFF
OFF A ON OFF OFF
55
40
5
µs
mVp-o
MRC output
VMRC
V24 = 5V
ON
MRC operating MRC-ON The pin 32 input level such that pin 24 ON
level
= 5V and pin 27 = 2V, f = 70kHz
AM Characteristics - ANT IN input
OFF B
OFF B
ON OFF OFF
ON OFF OFF
2.2 2.3 2.4 V
10 15 20 mVrms
Practical
sensitivity
Detection output
S/N-30
VO-AM
1MHz, 30dBµ, fm = 1kHz,
30% modulation, pin 15
1MHz, 74dBµ, fm = 1kHz,
30% modulation, pin 15
OFF OFF B ON ON
OFF OFF B ON ON
20
dB
130 195 270 mVrms
Continued on next page.
No.A0229-3/6
 

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