參數(shù)資料
型號(hào)： X9530B15I
英文描述： Temperature Compensated Laser Diode Controller
中文描述： 溫度補(bǔ)償激光二極管控制器
文件頁(yè)數(shù)： 11/30頁(yè)
文件大小： 479K
代理商： X9530B15I
X9530
Characteristics subject to change without notice.
11 of 30
REV 3.7 8/26/04
www.xicor.com
By examining the block diagram in Figure 5, we see
that the
maximum
current through pin I1 is set by fixing
values for V(VRef) and R1. The output current can
then be varied by changing the data byte at the D/A
converter input.
In general, the magnitude of the current at the D/A
converter output pins (I1, I2) may be calculated by:
Ix = (V(VRef) / (384 Rx)) N
where x =1,2 and N is the decimal representation of
the input byte to the corresponding D/A converter.
The value for the resistor Rx (x = 1,2) determines the
full scale output
current that the D/A converter may
sink or source. The full scale output current has a
maximum value of ±1.6 mA, which is obtained using a
resistance of 510
for Rx. This resistance may be
connected externally to pin Rx of the X9530, or may be
selected from one of three internal values. Bits I1FSO1
and I1FSO0 select the full scale output current setting
for I1 as described in “I1FSO1–I1FSO0: Current
Generator 1 Full Scale Output Set Bits (Non-volatile)”
on page 6. Bits I2FSO1 and I2FSO0 select the
maximum current setting for I2 as described in
“I2FSO1–I2FSO0: Current Generator 2 Full Scale
Output Current Set Bits (Non-volatile)” on page 7.
When an internal resistor is selected for R1 or R2, then
no resistor should be connected externally at the
corresponding pin.
Bits I1DS and I2DS in Control Register 0 select the
direction of the currents through pins I1 and I2
independently (See “I1DS: Current Generator 1
Direction Select Bit (Non-volatile)” on page 4 and
“Control and Status Register Format” on page 5).
D/A Converter Output Current Response
When the D/A converter input data byte changes by an
arbitrary number of bits, the output current changes
from an intial current level (I
x
) to some final level (I
x
+
I
x
). The transition is monotonic and glitchless.
D/A Converter Control
The data byte inputs of the D/A converters can be
controlled in three ways:
– 1) With the A/D converter and through the look-up
tables (default),
– 2) Bypassing the A/D converter and directly access-
ing the look-up tables,
– 3) Bypassing both the A/D converter and look-up
tables, and directly setting the D/A converter input
byte.
D1
D0
Select
ADC
AD[5:0]
Status
Register
LUT1 Row
Selection bits
LUT2 Row
Selection bits
Out
D1
D0
Select
Voltage
Reference
Voltage Input
Out
L2DA[5:0]:
Control
Register 2
L1DA[5:0]:
Control
Register 1
L2DAS: bit 6 in
Control register 5
L1DAS: bit 4 in
Control register 5
6
6
Figure 7. Look-Up Table Addressing
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
X9530-B15I 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Temperature Compensated Laser Diode Controller
X9530B15I-T1 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Temperature Compensated Laser Diode Controller
X9530B15I-T2 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Temperature Compensated Laser Diode Controller
X9530V14I 功能描述:IC LASR CTRLR 1CHAN 5.5V 14TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 激光驅(qū)動(dòng)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:60 系列:- 類型:激光二極管驅(qū)動(dòng)器 數(shù)據(jù)速率:- 通道數(shù):4 電源電壓:3.3V 電流 - 電源:- 電流 - 調(diào)制:- 電流 - 偏置:- 工作溫度:0°C ~ 70°C 封裝/外殼:40-TQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN EP 包裝:托盤 安裝類型:表面貼裝
X9530-V14I 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Temperature Compensated Laser Diode Controller
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