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Electronic Volume Controller IC
PT2256V
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, Ta=25℃, VDD=9V)
Parameter
Operating Supply Voltage
Operating Supply Current
Stand-by Current
Backup Voltage
Backup Current
Symbol
VDD
IDD
ISB
VOD
IOD
Test Condition
Min.
4.5
Typ.
9.0
0.3
0.3
-
0.1
-
-
-
-
54
29
22
-
Max.
11
1.0
10
11
Unit
V
mA
µA
V
No Load, FOSC=20Hz
OSC=0V, /INH=0V
-
-
2.0
-
0.7VDD
0.8VDD
/INH Pin=0V
1.0
µA
/UP, /DN, /RST
VDD
VDD
0.3VDD
0.7VDD
75
High Level Input Voltage
Low Level Input Voltage
VIH
VIL
V
V
/INH
/UP, /DN, /RST
0
0
/INH
Between IN~AGND Resistor
Between IN~LT Resistor
Between LT~AGND Resistor
/INH Input Pin, VIL=VDD
/INH Input Pin, VIN=0V
/UP, /DN, /RST Input Pin
When 0dB, Between
45
26
19
-1
-1
50
Voltage Resistor
RVR
KΩ
45
32
1
1
High Level Input Current
Low Level Input Current
Pull-up Resistor
IIH
IIL
Rup
mA
mA
KΩ
-
70
100
Analog Switch ON
Resistor
RON IN1~OUT1 and IN2~OUT2
Resistor
-
400
500
Ω
△ATT
△RVR
THD
Attenuation Error
Balance between Left and
Right
Total Harmonic Distortion
Maximum Attenuation
Cross Noise
Test Attenuation Value
Volume Resistor Error
between Left and Right
-
-
0
0
±2.0
±3.0
dB
%
0dB
∞dB
0dB
0dB
-
-
-
-
-
0.01
90
90
-100
18
-
-
-
-
-
%
FIN=1KHz,
ATTMAX VIN=1Vrms,
dB
dB
dB
Hz
RL=100KΩ,
Rg=600Ω
CT
VN
Output Noise
OSC Frequency
FOSC CX=2.2µf, Rx=33KΩ
FIN=1KHz, VIN=1Vrms,
Volume Control=0dB
Output Resistance
ROUT
550
650
750
Ω
FIN=1KHz,
Volume
Control=0dB,
THD<0.08%
Maximum Input Amplitude
VIN
VDD=9V
-
-
3.5
Vrms
PT2256V V1.2
- 9 -
August, 2006
PTC [ PRINCETON TECHNOLOGY CORP ]
