- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376449 > X9523V20I-A (INTERSIL CORP) Laser Diode Control for Fiber Optic Modules PDF資料下載
參數(shù)資料
| 型號： | X9523V20I-A |
| 廠商： | INTERSIL CORP |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Laser Diode Control for Fiber Optic Modules |
| 中文描述： | DIGITAL POTENTIOMETER, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 11/30頁 |
| 文件大小： | 509K |
| 代理商： | X9523V20I-A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁當(dāng)前第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁
11
FN8209.0
March 10, 2005
POR1, POR0: Power-on Reset bits - (Nonvolatile)
Applying voltage to V
CC
activates the Power-on Reset
circuit which holds V1RO output HIGH, until the supply
voltage stabilizes above the V
TRIP1
threshold for a
period of time, t
PURST
(See Figure 25).
The Power-on Reset bits, POR1 and POR0 of the
CONSTAT register determine the tPURST delay time of
the Power-on Reset circuitry (See "VOLTAGE MONI-
TORING FUNCTIONS"). These bits of the CONSTAT
register are nonvolatile, and therefore power-up to the
last written state.
The nominal Power-on Reset delay time can be selected
from the following table, by writing the appropriate bits to
the CONSTAT register:
The default for these bits are POR1 = 0, POR0 = 1.
V2OS, V3OS: Voltage Monitor Status Bits (Volatile)
Bits V2OS and V3OS of the CONSTAT register are
latched, volatile flag bits which indicate the status of the
Voltage Monitor reset output pins V2RO and V3RO.
At power-up the VxOS (x = 2,3) bits default to the value
“0”. These bits can be set to a “1” by writing the appropri-
ate value to the CONSTAT register. To provide consis-
tency between the VxRO and VxOS however, the status
of the VxOS bits can only be set to a “1” when the corre-
sponding VxRO output is HIGH.
Once the VxOS bits have been set to “1”, they will be
reset to “0” if:
—The device is powered down, then back up,
—The corresponding VxRO output becomes LOW.
CONSTAT Register Write Operation
The CONSTAT register is accessed using the Slave
Address set to 1010010 (Refer to Figure 4.). Following
the Slave Address Byte, access to the CONSTAT regis-
ter requires an Address Byte which must be set to FFh.
Only one data byte is allowed to be written for each
CONSTAT register Write operation. The user must issue
a STOP, after sending this byte to the register, to initiate
the nonvolatile cycle that stores the DWLK, POR1 and
POR0 bits. The X9523 will not ACKNOWLEDGE any
data bytes written after the first byte is entered (Refer to
Figure 13.).
When writing to the CONSTAT register, the bit CS4 must
always be set to “0”. Writing a “1” to bit CS4 of the CON-
STAT register is a reserved operation.
Prior to writing to the CONSTAT register, the WEL and
RWEL bits must be set using a two step process, with
the whole sequence requiring 3 steps
—Write a 02H to the CONSTAT Register to set the Write
Enable Latch (WEL). This is a volatile operation, so
there is no delay after the write. (Operation preceded
by a START and ended with a STOP).
—Write a 06H to the CONSTAT Register to set the Reg-
ister Write Enable Latch (RWEL) AND the WEL bit.
This is also a volatile cycle. The zeros in the data byte
are required. (Operation preceded by a START and
ended with a STOP).
POR1
0
0
1
1
POR0
0
1
0
1
Power-on Reset delay (t
PUV1RO
)
50ms
100ms (Default)
200ms
300ms
S
T
A
R
T
1
0
1
0
0
1
0
R/W A
C
K
1
1
1
1
1
1
1
1
A
C
K
SCL
SDA
S
T
O
P
A
C
K
CS7 CS6CS5 CS4 CS3 CS2CS1 CS0
SLAVE ADDRESS BYTE
ADDRESS BYTE
CONSTAT REGISTER DATA IN
Figure 13. CONSTAT Register Write Command Sequence
X9523
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X9523V20I-B | Laser Diode Control for Fiber Optic Modules |
| X9523 | Laser Diode Control for Fiber Optic Modules |
| X9523B20I-A | RECTIFIER FAST-RECOVERY SINGLE 3A 50V 125A-ifsm 0.95V-vf 35ns 5uA-ir DO-201AD 1.2K/REEL-13 |
| X9523B20I-B | RECTIFIER FAST-RECOVERY SINGLE 3A 100V 125A-ifsm 0.95V-vf 35ns 5uA-ir DO-201AD 500/BULK |
| X9525B20I | Fiber Channel/Gigabit Etherner Laser Diode Control for Fiber Optic Modules |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9523V20I-AT1 | 功能描述:IC DCP DUAL EEPROM MEM 20-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 激光驅(qū)動器 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 |
| X9523V20I-B | 功能描述:IC DUAL DCP LASER CNTRL 20TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 激光驅(qū)動器 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 |
| X9523V20I-BT1 | 功能描述:IC DCP DUAL EEPROM MEM 20-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 激光驅(qū)動器 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 |
| X9523V20IZ-A | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Laser Diode Control for Fiber Optic Modules |
| X9523V20IZ-B | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Laser Diode Control for Fiber Optic Modules |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。