TA1218N/F
2000-09-11 26/40
DC Characteristics
Characteristics Measured
Pin
Symbol
Test
Circuit
Min. Typ. Max. Unit
Remark
Det in
R3
10 18 30 k
Ω
V
in
TV R7
20 30 40 k
Ω
V
in
V1 R10
20 30 40 k
Ω
V
in
V2 R28
20 30 40 k
Ω
Y/V
in
S1 R12
20 30 40 k
Ω
Y/V
in
S2 R16
20 30 40 k
Ω
C
in
S1 R14
20 30 40 k
Ω
C
in
S2 R18
20 30 40 k
Ω
Y
in
R30
40 60 80 k
Ω
C
in
R32
40 60 80 k
Ω
L
in
TV R5
49 70 100 k
Ω
R
in
TV R6
49 70 100 k
Ω
L
in
V1 R8
49 70 100 k
Ω
R
in
V1 R9
49 70 100 k
Ω
L
in
V2 R29
49 70 100 k
Ω
R
in
V2 R31
49 70 100 k
Ω
L
in
S1 R11
49 70 100 k
Ω
R
in
S1 R13
49 70 100 k
Ω
L
in
S2 R15
49 70 100 k
Ω
Input pin
Input resistance
R
in
S2 R17
49 70 100 k
Ω
Measure a change
∆
I
in the current flowing
into each pin when the
voltage is raised by
0.5V. Then calculate
the input resistance
value R.
R
=
0.5 V/
∆
I [
Ω
]
Det Select
R4
17 35 53
Ω
V
out
1 R38
13 25 50
Ω
V
out
2 R42
13 25 50
Ω
Y
out
R36
13 25 50
Ω
C
out
R34
13 25 50
Ω
L
out
TV R40
20 45 90
Ω
R
out
TV R39
20 45 90
Ω
L
out
1 R37
20 45 90
Ω
R
out
1 R35
20 45 90
Ω
L
out
2 R1
20 45 90
Ω
Output pin
Output resistance
R
out
2 R2
20 45 90
Ω
Measure a voltage
change
∆
V on each
pin when a current of
100
µ
A flows into the
pin. Then calculate the
output resistance
value R.
R
=
∆
V/100
µ
A [
Ω
]
C
in
S1 VthC1
1.75 2.25
2.75 V
Voltage on pin 14 (10)
at which data B31
changes.
S mode discrimination voltage
C
in
S2 VthC2
1.75 2.25
2.75 V
Voltage on pin 18 (15)
at which data B32
changes.
External mute ON voltage
C
in
VthM
1.75 2.25
2.75 V
Voltage on pin 32 (30)
at which voice is
muted.
Address switching voltage
Address
VthA
1.75 2.25
2.75 V
Voltage on pin 27 (25)
at which the slave
address changes.