AA88348AP Datasheet, PDF (3/10 Pages) Agamem Microelectronic Inc. – 8-BIT DAC

Agamem Microelectronics Inc. AA88348AP
PRELIMINARY
8-BIT DAC
„ BLOCK DIAGRAM
(Clock) CLK
(Serial
DI
digital input)
(System V_CC
Power)
(Analog _VDD
Power)
Digital Block
12-bit Shift Register
D0 D1 D2 _{D3 D4 D5 D6 D7}
D8 D9
D10 D11
8
8-bit Data
Latch #8
8
R-2R
D/A Converter
#1
4
4-bit Address Decoder
1234
67 8
8
Analog Block
8-bit Data
Latch #8
8
D/A Converter
#8
OP-B
#1
OP-B
#8
DO (Serial
digital output)
LD (Strobe)
GND (System
Ground)
V_SS (Anaglog
Ground)
Analog Output
AO1
AO8
* Vcc and GND are for digital block and operational amplifier buffer block
* VDD, VSS are only for Analog block except operational amplifier buffer block
* Vss + 2V Ù
7%%
Ù
7DD
* GND Ù
7TT
Ù
7%%
y
7
3
2006/7/5