DAC8801_16 Datasheet, PDF (9/22 Pages) Texas Instruments – 14-Bit, Serial Input Multiplying Digital-to-Analog Converter

www.ti.com
SDI
D13 D12 D11 D10 D9 D8 D7 D6
DAC8801
SLAS403B – NOVEMBER 2004 – REVISED FEBRUARY 2007
D1 D0
CLK
CS
t_(CSS)
t_(DS)
t_(DH)
t_(CH)
t_(CL)
t_(CSH)
Figure 19. DAC8801 Timing Diagram
Table 1. Control Logic Truth Table⁽¹⁾
CLK
X
↑+
X
X
CS
Serial Shift Register
DAC Register
H
No effect
Latched
L
Shift register data advanced one bit
Latched
H
No effect
Latched
↑+
Shift register data transferred to DAC register
New data loaded from serial register
(1) ↑+ Positive logic transition; X = Don't care
Table 1. Serial Input Register Data Format, Data Loaded MSB First
B13
B0
Bit (MSB) B12 B11 B10
B9
B8
B7
B6
B5
B4
B3
B2
B1 (LSB)
Data⁽¹⁾ D13 D12 D11 D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
(1) A full 16-bit data word can be loaded into the serial register, but only the last 14 bits are transferred to the DAC register when CS goes
high.
Submit Documentation Feedback
9