參數(shù)資料
型號: X9530
廠商: Intersil Corporation
英文描述: Temperature Compensated Laser Diode Controller(帶溫度補(bǔ)償?shù)募す舛O管控制器)
中文描述: 溫度補(bǔ)償激光二極管控制器(帶溫度補(bǔ)償?shù)募す舛O管控制器)
文件頁數(shù): 10/28頁
文件大?。?/td> 372K
代理商: X9530
10
FN8211.1
November 11, 2005
Figure 5. D/A Converter Block Diagram
+
-
I1 or I2 Pin
R1 or R2 Pin
R1_External or R2_External
Optional external resistor
I1DS or I2DS: bits
6 or 7 in Control
register 0.
Vss
Vss
I1FSO[1:0]
or I2FSO[1:0]
bits 1 and 0, or
3 and 2 in Control
register 5
R
R
R
VRef
Select
Circuit
Polarity
Vcc
Voltage
Divider
DAC1 or
DAC2
Input byte
Vss
Vss
11
10
01
00
R
R
R
Figure 6. Look-up Table (LUT) Operation
DAC 2
Input Byte
8
D0h
D0h
10Fh
8
LUT2
6
LUT2 Row
Selection bits
Out
D1
D0
Select
D2DAS: Bit 7 of
Control register 5
D2DA[7:0] : Control register 4
A
D
D
E
R
8
8
DAC 1
Input Byte
8
90h
90h
CFh
8
LUT1
6
LUT1 Row
Selection bits
Out
D1
D0
Select
D1DAS: Bit 5 of
Control register 5
D1DA[7:0] : Control register 3
A
D
D
E
R
8
8
X9530
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