PT8146 Datasheet, PDF (2/27 Pages) Princeton Technology Corp – 8-Bit 12-Ch I/O DAC

8-Bit 12-Ch I/O DAC
BLOCK DIAGRAM
Tel: [phone]
Fax: [phone]
URL: http://www.princeton.com.tw
PT8146
/CS
SO
SI
CLK
V_CCD
16-bit shift register and controller
DF DE DD DC DB DA D9 D8 D7 D6 D5 D4
V_DD
V_CCA
DF DE DD DC DB DA D9 D8 D7 D6 D5 D4
I/O Expander
DF DE
D5 D4
12
DF
DF
DF
D8
D8
DF
D8
D8
8-bit latch
8-bit latch
8-bit latch
8-bit latch
DF
DF
DF
DF
D8
D8
D8
D8
R-2R
rudder circuit
R-2R
rudder circuit
R-2R
rudder circuit
R-2R
rudder circuit
D₀
D₁
D₂
D₃
GND
-+
-+
-+
-+
8
AO₁
AO₄
D₁₁/AO₅
D₄/AO₁₂
PT8146 V1.1
-2-
February, 2006