LA1787M
Test Conditions
Parameter
Symbol
SW1
SW2
SW3
SW4
Switch states
SW5 SW6
SW7
SW8
SW9
SW10
Current drain
Demodulation output
Pin 31 demodulation output
Channel balance
Total harmonic distortion (FM)
Signal-to-noise ratio: IF
AM suppression ratio: IF
Muting attenuation
Separation
Stereo on level
Stereo off level
Main total harmonic distortion
Pilot cancellation
SNC output attenuation
HCC output attenuation 1
HCC output attenuation 2
Input limiting voltage
Muting sensitivity
SD sensitivity 1
SD sensitivity 2
IF counter buffer output
Signal meter output (FM)
Muting bandwidth
Mute drive output
N-AGC on input
W-AGC on input
Conversion gain
Oscillator buffer output
Gate time 1
Noise sensitivity
NC effect
MRC output
MRC operating level
Practical sensitivity
Detection output
Pin 31 detection output
AGC F.O.M.
Signal-to-noise ratio
Total harmonic distortion (AM)
Signal meter output (AM)
Oscillator buffer output
Wide band AGC sensitivity
SD sensitivity
IF buffer output
I CCO -FM
V O -FM
V O -FM31
CB
THD-FMmono
S/N-FM IF
AMR IF
Att-1
Att-2
Att-3
Separation
ST-ON
ST-OFF
THD-Main L
PCAN
AttSNC
AttHCC-1
AttHCC-2
Vi-lim
Vi-mute
SD-sen1 FM
SD-sen2 FM
V IFBUFF-FM
V SM FM-1
V SM FM-2
V SM FM-3
V SM FM-4
BW-mute
V MUTE-100
V NAGC
V WAGC
A.V
V OSCBUFFFM
τ GATE1
SN
SN-NC
V MRC
MRC-ON
S/N-30
V O -AM
V O -AM31
V AGC-FOM
S/N-AM
THD-AM
V SM AM-1
V SM AM-2
V OSCBUFF AM-1
W-AGCsen 1
W-AGCsen 2
SD-sen1 AM
SD-sen2 AM
V IFBUFF-AM
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON/OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
a
a
a
a
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
a
a
a
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
OFF
ON
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF/ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
No. 6655-21/54
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