参数资料
| 型号： | X9520B20I-AT1 |
| 厂商： | Intersil |
| 文件页数： | 2/29页 |
| 文件大小： | 0K |
| 描述： | IC LASR CTRLR 3CHAN 5.5V 20TSSOP |
| 标准包装： | 5,000 |
| 类型： | 激光二极管控制器（光纤） |
| 通道数： | 3 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 1.5mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
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X9520
Block Diagram
R H0
8
WIPER
COUNTER
REGISTER
R W0
R L0
WP
PROTECT LOGIC
6 - BIT
NONVOLATILE
MEMORY
SDA
SCL
DATA
REGISTER
COMMAND
DECODE &
CONTROL
LOGIC
4
CONSTAT
REGISTER
2kbit
EEPROM
ARRAY
WIPER
COUNTER
REGISTER
7 - BIT
NONVOLATILE
MEMORY
R H1
R W1
R L1
R H2
THRESHOLD
RESET LOGIC
WIPER
COUNTER
REGISTER
R W2
MR
2
8 - BIT
NONVOLATILE
R L2
V1/VCC
V3
V2
VTRIP 3
VTRIP 2
VTRIP 1
-
+
-
+
+
-
POWER-ON /
LOW VOLTAGE
RESET
GENERATION
MEMORY
V3RO
V2RO
V1RO
Detailed Device Description
The X9520 combines three Intersil Digitally Controlled
Potentiometer (DCP) devices, V1/VCC power-on reset
control, V1/VCC low voltage reset control, two
supplementary voltage monitors, and integrated EEPROM
with Block Lock? protection, in one package. These
functions are suited to the control, support, and monitoring of
various system parameters in Fiber Channel/Gigabit
Ethernet fiber optic modules, such as in Gigabit Interface
Converter (GBIC) applications. The combination of the
X9520 fucntionality lowers system cost, increases reliability,
and reduces board space requirements using Intersil’s
unique XBGA? packaging.
Two high resolution DCPs allow for the “set-and-forget”
adjustment of Laser Driver IC parameters such as Laser
Diode Bias and Modulation Currents. One lower resolution
DCP may be used for setting sundry system parameters
such as maximum laser output power (for eye safety
requirements).
Applying voltage to V CC activates the Power-on Reset circuit
which allows the V1RO output to go HIGH, until the supply
the supply voltage stabilizes for a period of time (selectable
via software). The V1RO output then goes LOW. The Low
Voltage Reset circuitry allows the V1RO output to go HIGH
when V CC falls below the minimum V CC trip point. V1RO
remains HIGH until V CC returns to proper operating level. A
Manual Reset (MR) input allows the user to externally trigger
the V1RO output (HIGH).
2
Two supplementary Voltage Monitor circuits continuously
compare their inputs to individual trip voltages. If an input
voltage exceeds it’s associated trip level, a hardware output
(V3RO, V2RO) are allowed to go HIGH. If the input voltage
becomes lower than it’s associated trip level, the
corresponding output is driven LOW. A corresponding binary
representation of the two monitor circuit outputs (V2RO and
V3RO) are also stored in latched, volatile (CONSTAT)
register bits. The status of these two monitor outputs can be
read out via the 2-wire serial port.
An application of the V1RO output may be to drive the
“ENABLE” input of a Laser Driver IC, with MR as a
“TX_DISABLE” input. V2RO and V3RO may be used to
monitor “TX_FAULT” and “RX_LOS” conditions respectively.
Intersil’s unique circuits allow for all internal trip voltages to
be individually programmed with high accuracy. This gives
the designer great flexibility in changing system parameters,
either at the time of manufacture, or in the field.
The memory portion of the device is a CMOS serial
EEPROM array with Intersil’s Block Lock? protection. This
memory may be used to store fiber optic module
manufacturing data, serial numbers, or various other system
parameters. The EEPROM array is internally organized as x
8, and utilizes Intersil’s proprietary Direct Write? cells,
providing a minimum endurance of 1,000,000 cycles and a
minimum data retention of 100 years.
The device features a 2-Wire interface and software protocol
allowing operation on an I 2 C? compatible serial bus.
FN8206.2
August 20, 2007
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相关代理商/技术参数 |
参数描述 |
|---|---|
| X9520B20IB | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple DCP, POR,2kbit EEPROM Memory, Dual Voltage Monitors |
| X9520B20I-B | 制造商:Intersil Corporation 功能描述:TRIPLE DCP POR EEPROM MEMORY 20CSP - Rail/Tube |
| X9520B20I-BT1 | 功能描述:IC LASR CTRLR 3CHAN 5.5V 20TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 激光驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:激光二极管驱动器 数据速率:- 通道数:4 电源电压:3.3V 电流 - 电源:- 电流 - 调制:- 电流 - 偏置:- 工作温度:0°C ~ 70°C 封装/外壳:40-TQFN 裸露焊盘 供应商设备封装:40-TQFN EP 包装:托盘 安装类型:表面贴装 |
| X9520CZ6 WAF | 制造商:Intersil Corporation 功能描述: |
| X9520V20IA | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple DCP, POR,2kbit EEPROM Memory, Dual Voltage Monitors |
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