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参数资料
| 型号： | TLC7628EDW |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | DUAL 8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS |
| 中文描述： | 双8位乘法数字到模拟转换器 |
| 文件页数： | 6/10页 |
| 文件大小： | 156K |
| 代理商： | TLC7628EDW |
TLC7628C, TLC7628E, TLC7628I
DUAL 8-BIT MULTIPLYING
DIGITAL-TO-ANALOG CONVERTERS
SLAS063A – APRIL 1989 – REVISED MAY 1995
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
8
DB7
17
14
DGND
5
16
15
6
7
VDD
WR
CS
DACB
DACA/
DBO
VI(B)
±
10 V
R3 (see Note A)
8
8
8
REFA
RFBA
OUTA
AGND
OUTB
RFBA
C1(see Note C)
A1
R4 (see Note A)
C2
(see Note C)
AGND
A3
5 k
R12
R10
20 k
(see Note B)
(see
Note B)
R9
10 k
R8
20 k
A4
VOB
(see
Note B)
R7
5 k
R11
10 k
A2
VOA
20 k
R5
20 k
R6 (see Note B)
R2 (see Note A)
R1 (see Note A)
±
10 V
VI(A)
+
–
+
–
+
–
+
–
RECOMMENDED TRIM
RESISTOR VALUES
R1, R3
R2, R4
500
150
Control
Latch
DACA
Latch
DACB
NOTES: A. R1, R2, R3, and R4 are used only if gain adjustment is required. See table for recommended values. Adjust R1 for VOA = 0 V with
code 10000000 in DACA latch. Adjust R3 for VOB = 0 V with 10000000 in DACB latch.
B. Matching and tracking are essential for resistor pairs R6, R7, R9, and R10.
C. C1 and C2 phase compensation capacitors (10 pF to 15 pF) may be required if A1 and A3 are high-speed amplifiers.
Figure 3. Bipolar Operation (4-Quadrant Operation)
A + 1
A
A8–A15
CPU
8051
WR
ALE
TLC7628
WR
DACA/DACB
CS
DB0
DB7
AD0–AD7
Data Bus
Address Bus
Latch
Address
Decode
Logic
NOTE D: A = decoded address for TLC7628 DACA
A + 1 = decoded address for TLC7628 DACB
Figure 4. TLC7628 — Intel 8051 Interface
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| TLC7628EFN | 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL 8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS |
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