PT2256 データシートの表示（PDF） - Princeton Technology
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PT2256 Datasheet PDF : 21 Pages
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Electronic Volume Controller IC
PT2256
ELECTRICAL CHARACTERISTICS
(Unless otherwise stated, Ta=25℃, VDD=9V)
Parameter
Symbol
Test Condition
Min. Typ.
Operating supply
voltage
VDD
4.5 9.0
Operating supply
current
IDD
No load, FOSC=20Hz
-
0.3
Stand-by current
ISB
OSC=0V, /INH=0V
-
0.1
Backup voltage
Backup current
VOD
IOD
/INH Pin=0V
2.0
-
-
0.1
High level input
voltage
VIH
/UP, /DN, /RST
/INH
0.7VDD -
0.8VDD -
Low level input voltage
VIL
/UP, /DN, /RST
/INH
0
-
0
-
Between IN~AGND resistor 45 51
Voltage resistor
RVR
Between IN~LT resistor
26 29
Between LT~AGND resistor 19 22
High level input
current
IIH
/INH input pin. VIL=VDD
-1
-
Low level input current
IIL
/INH input pin, VIN=0V
-1
-
Pull-up resistor
Rup
/UP, /DN, /RST input pin
90 110
Analog switch on
resistor
RON
When 0dB, Between
IN1~OUT1 and IN2~OUT2
Resistor
- 250
Attenuation error
△ATT
Test attenuation value
-
0
Balance between left
and right
△RVR
Volume resistor error
between left and right
-
0
Total harmonic
distortion
Maximum attenuation
Cross noise
Output noise
OSC frequency
THD
ATTMAX
CT
VN
FOSC
FIN=1KHz.
0dB
VIN=1Vrms,
RL=100KΩ,
Rg=600Ω
∞dB
0dB
0dB
CX=2.2µf, Rx=33KΩ
- 0.01
-
80
-
80
-
-90
-
18
Output resistance
ROUT
FIN=1KHz, VIN=1Vrms,
Volume control=0dB
550 650
Maximum input
amplitude
VIN
FIN=1KHz,
volume
VDD=9V
-
control=0dB,
THD<0.08%
VDD=12V
-
-
-
Max.
12
1.0
10
12
1.0
VDD
VDD
0.3VDD
0.7VDD
75
45
32
1
1
130
400
±2.0
±3.0
-
-
-
-
-
750
3.5
4.0
Unit
V
mA
µA
V
µA
V
V
KΩ
µA
µA
KΩ
Ω
dB
%
%
dB
dB
dB
Hz
Ω
Vrms
PT2256 V1.7
- 10 -
August, 2006
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