Tel : 886-2-29162151
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Princeton Technology Corp.
6-Channel Electronic Volume Controller IC Preliminary
PT2258
ELECTRICAL CHARACTERISTICS
Symbol
VDD
Is
Parameter
Condition
Min.
5
Typ. Max.
Unit
V
Supply Voltage
Supply Current
Input Impedance
9
8
10
mA
KΩ
RIN
FL,FR,CTR
SUB,SL,SR
Volume=0dB
THD=1%
27
30
35
VCL
Maximum Input Voltage
2.8
3.0
110
Vrms
Sc
Channel Separation
Volume Control
Range
90
100
79
dB
dB
CRANGE
AVMAX
Astep
EA
Maximum Attenuation
Attenuation Step
Attenuation Error
Mute Attenuation
Total Harmonic
Distortion
-79
1
dB
dB
dB
dB
%
Volume=0~-50dB
A-weighting
-1.0
90
0
+1.0
98
AMUTE
THD
95
Volume=0dB
Input,200mVrms
A-weighting
0.003 0.005 0.01
Noise
S/N
Output Noise
3
5
µV
dB
Signal-to-Noise Ratio
0dB=1Vrms
100
105
110
A-weighting
Ro
Go
Output Impedance
Output Gain
600
0
900
+0.5
2.9
Ω
dB
-0.5
2.3
Vomax
Maximum Output
FL,FR,CENTER
SUB,SL,SR
THD=1%
2.6
Vrms
I2C BUS SECTION ELECTRICAL CHARACTERISTICS
Symbol
VIL
Parameter
Condition
Min.
2.8
Typ. Max.
Unit
V
Bus Low Input Level
Bus High Input Level
Bus Initialization
2.4
3.0
2.5
VIH
V
TINIT
Cref=10µF
250
300
mS
PT2258 pre1.0
11
Updated July 2000
PTC [ PRINCETON TECHNOLOGY CORP ]
