PT2258 View Datasheet(PDF) - Princeton Technology
Part Name
Description
Manufacturer
PT2258 Datasheet PDF : 17 Pages
| |||
6-Channel Electronic Volume Controller IC
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2258
DATA BYTES DESCRIPTION
FUNCTION BITS
MSB
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
0
0
1
0
0
1
0
1
1
0
1
0
A3 A2
1
0
B2
1
A3 A2
0
0
B2
1
A3 A2
0
0
B2
1
A3 A2
0
0
B2
1
A3 A2
0
0
B2
1
A3 A2
0
0
B2
1
A3 A2
0
0
B2
1
1
1
1
1
0
LSB
FUNCTION
A1 A0 6-Channel, -1dB/step
B1 B0 6-Channel, -10dB/step
A1 A0 Channel No. 3, -1dB/step
B1 B0 Channel No. 3, -10dB/step
A1 A0 Channel No. 4, -1dB/step
B1 B0 Channel No. 4, -10dB/step
A1 A0 Channel No. 2, -1dB/step
B1 B0 Channel No. 2, -10dB/step
A1 A0 Channel No. 5, -1dB/step
B1 B0 Channel No. 5, -10dB/step
A1 A0 Channel No. 1, -1dB/step
B1 B0 Channel No. 1, -10dB/step
A1 A0 Channel No. 6, -1dB/step
B1 B0 Channel No. 6, -10dB/step
6-Channel, Mute
0
M When M= 1, Mute On
When M=0, Mute Off
ATTENUATION UNIT BIT
A3/---
A2/B2
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
Note: Ax=-1dB/step, Bx=-10dB/step
A1/B1
0
0
1
1
0
0
1
1
0
0
A0/B0
0
1
0
1
0
1
0
1
0
1
Attenuation Value(dB)
0/0
-1/-10
-2/-20
-3/-30
-4/-40
-5/-50
-6/-60
-7/-70
-8/-
-9/-
PT2258 V1.2
- 10 -
July, 2005
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