TK15125 데이터 시트보기 (PDF) - Toko America Inc
부품명
상세내역
일치하는 목록
TK15125 Datasheet PDF : 8 Pages
| |||
TEST CIRCUIT AND TESTING METHODS
TK15125
VM
300 Ω
SG
A1
A2
NC
VDD
+5 V
+
22 µF
GND
NC
300 Ω
NC
V1
SG
TESTING METHODS
VM
1) POWER SUPPLY CURRENT
· ‘MUTE OFF’ Mode
Measure current ‘A1’ while control, Pin 9, is ‘Lo’ (or open).
· ‘MUTE ON’ Mode
Measure current ‘A1’ while control, Pin 9, is ‘Hi’.
VSS
-5 V
+
22 µF
2) ATTENUATION VOLUME
· Attenuation is calculated by the following equation while control, Pin 9, is ‘Hi’:
( ) ATT = 20Log
Pin 1(Pin 7) output AC voltage
Pin 2(Pin 6) input AC voltage
3) CAPACITOR PIN CHARGING AND DISCHARGING CURRENT
· Charging Current
·
Measure outflow current
Discharging Current
‘A2’
while
control,
Pin
9,
is
‘Hi’
and
the
voltage
at
Pin
13
is
VSS
+
0.75
V.
Measure inflow current ‘A2’ while control, Pin 9, is ‘Lo (or open)’ and the voltage at Pin 13 is V + 0.75 V.
SS
4) CONTROL SWITCH VOLTAGE
· ‘MUTE OFF’ Mode
Gradually elevate Pin 9 voltage
measure the voltage ‘V1’.
above
VSS.
When the Attack action (Mute On) is implemented at Pin 1 (Pin 7),
· ‘MUTE ON’ Mode
Gradually lower Pin 9 voltage
measure the voltage ‘V1’.
below
VDD.
When the Release action (Mute Off) is implemented at Pin 1 (Pin 7),
5) ‘MUTE ON’ OUTPUT DC VOLTAGE
· Measure output voltage at Pin 1 (Pin 7) while control, Pin 9, is ‘Hi’ and there is no input.
6) TOTAL HARMONIC DISTORTION
· Measure the distortion of the Pin 1 (Pin 7) output while control, Pin 9, is ‘Lo’ (or open).
7) SIGNAL VOLTAGE GAIN
· Signal gain is calculated by the following equation while control, Pin 9, is ‘Lo’ (or open).
( ) GV = 20Log
Pin 1(Pin 7) output AC voltage
Pin 2(Pin 6) input AC voltage
8) INNER ATTENUATION RESISTANCE
· Using a multimeter, measure the resistance between Pin 1 (Pin 7) and Pin 2 (Pin 6) while the power supply is
off.
9) MAXIMUM INPUT SIGNAL VOLTAGE
·
While control, Pin 9, is ‘Lo’ (or
becomes 0.01% at the output
open), gradually
of Pin 1 (Pin 7),
elevate Pin 2 (Pin 6) voltage
measure the AC voltage.
above
0
VP-P.
When the distortion
July 1999 TOKO, Inc.
Page 3
Share Link: 