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Toshiba TA1218N Manual page 36

Udio/video switching ic for tvs

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Characteristics
L
TV
out
Gain
L
TV
out
Frequency response
L
TV
out
Crosstalk
L
TV
out
Mute attenuation
R
TV
out
Input dynamic range
R
TV
out
Gain
R
TV
out
Frequency response
Select Mode
Symbol
L
TV
G5LTV
in
L
TV
F5LTV
in
L
TV
CT5LTV
in
L
V1
CT8LTV
in
L
V2
CT29LTV
in
L
S1
CT11LTV
in
L
S2
CT15LTV
in
L
TV
M5LTV
in
R
TV
VDR6RTV
in
R
TV
G6RTV
in
R
TV
F6RTV
in
Test
Min.
Typ.
Max.
Circuit
−0.5
0
0.5
0.1
2.0
70
100
70
100
70
100
70
100
70
100
70
100
6.0
6.5
−0.5
0
0.5
0.1
2.0
TA1218N/F
Unit
Test Method
While applying a
1 kHz, 1.0 V
sine
p-p
dB
wave to pin 5 (47), find
the gain between pins
5 (47) and 40 (40).
While applying a
1.0 V
sine wave to
p-p
pin 5, measure a
frequency at which the
MHz
output waveform on
pin 40 (40) is 3dB
down from the 1 kHz
applied level.
(1) Apply a 1 kHz,
dB
1.0 V
sine wave
p-p
to each input pin.
dB
(2) Compare the
output amplitude
dB
when L
TV is
in
selected with
leakage
dB
components from
nonselected pins
dB
to find a crosstalk.
While applying a
1 kHz, 1.0 V
sine
p-p
wave to pin 5,
compare the output
dB
amplitudes on pin 40
(40) when mute is
turned on and turned
off to find mute
attenuation.
While applying a 1 kHz
sine wave to pin 6
(48), measure an input
V
amplitude at which the
p-p
output waveform on
pin 39 (39) begins to
be distorted.
While applying a
1 kHz, 1.0 V
sine
p-p
dB
wave to pin 6 (48), find
the gain between pins
6 (48) and 39 (39).
While applying a
1.0 V
sine wave to
p-p
pin 6, measure a
frequency at which the
MHz
output waveform on
pin 39 (39) is 3dB
down from the 1 kHz
applied level.
2000-09-11 36/40

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