- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373784 > ZL40514LCF (ZARLINK SEMICONDUCTOR INC) Dual Output DVD and CD 4 Channel Laser Diode Drivers PDF資料下載
參數(shù)資料
| 型號： | ZL40514LCF |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 其它接口 |
| 英文描述： | Dual Output DVD and CD 4 Channel Laser Diode Drivers |
| 中文描述： | SPECIALTY INTERFACE CIRCUIT, QCC24 |
| 封裝： | 4 X 4 MM, 0.90 MM HEIGHT, MO-220, QFN-24 |
| 文件頁數(shù)： | 5/30頁 |
| 文件大?。?/td> | 1268K |
| 代理商： | ZL40514LCF |
第1頁第2頁第3頁第4頁當前第5頁第6頁第7頁第8頁第9頁第10頁第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
ZL40510/14
Data Sheet
5
Zarlink Semiconductor Inc.
1.0 Application Notes
1.1 Read and Write Channel Operation
The read channel is activated by applying a 'High' signal to the PWR_UP pin. In this mode, the fast write channels
can be enabled by applying a 'High' signal to the respective pair of write enable pins (EN2, /EN2), (EN3, /EN3) or
(EN4, /EN4). The output currents of the four channels are summed together and output as a composite signal at
either OUTA (if SELA select is 'High') or OUTB (if SELA select is 'Low'). This provides the ability to drive two
different laser diodes with just one ZL40510/14.
Voltage control of the channel reference inputs (INR, IN2, IN3 and IN4) can be achieved quite easily using an
external resistor R
ref
in series with the reference channel input to convert a given reference potential V
ref
to an input
current, I
in
:
where R
in
is the input impedance of the respective reference channel.
1.2 On-chip RF Oscillator
An on-chip RF oscillator is enabled if OSCEN = 'High', and its output signal is added to the appropriate current
output (OUTA, if SELA select is 'High', or OUTB, if SELA select is 'Low'). The oscillator amplitude is set by an
external resistor from RSA or RSB to GND. Its frequency is set by an external resistor RFA or RFB to GND. RSA
and RFA are selected when SELA is ‘High’.
The oscillator signal is summed with the programmed Write and Read levels before amplification to the output. The
oscillator signal has zero DC level and +I_pk to –I_pk signal swing. Consequently, if the programmed DC level from
the Write and Read Channels is less than the PK level programmed for the Oscillator, the combined signal will be
clipped on the negative cycle of the signal. This will increase the harmonic content of the output signal and reduce
the pk to pk amplitude output.
1.3 Thermal Considerations
Package thermal resistance is 40
°
C/W under the EIA/JESD51-3 compliant PCB test board condition.
Users should ensure that the junction temperature does not exceed 150
°
C. Thermal resistance from junction to
case and to ambient is very much dependent on how the IC is mounted onto the board, on the PCB layout and on
any heat extraction arrangements.
Power consumption and system ambient operating temperature limits should be noted and careful thermal gradient
calculations undertaken to ensure that the junction temperature never exceeds 150
°
C.
in
ref
ref
+
in
R
R
V
I
=
,
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ZL40518 | 3 Channel Laser Diode Driver |
| ZL40518LDG | 3 Channel Laser Diode Driver |
| ZL40518DGE1 | 3 Channel Laser Diode Driver |
| ZL40539 | Dual Output CD and DVD 4 Channel Laser Diode Driver |
| ZL40539LCF | Dual Output CD and DVD 4 Channel Laser Diode Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZL40514LDE | 制造商:Microsemi Corporation 功能描述:4CH DUAL LASER DIODE DRIVERS LVDS CNTR - Trays |
| ZL40514LDF | 制造商:Microsemi Corporation 功能描述:4CH DUAL LASER DIODE DRIVERS LVDS CNTR - Trays |
| ZL40514LDG | 制造商:Microsemi Corporation 功能描述:4CH DUAL LASER DIODE DRIVERS LVDS CNTR - Trays |
| ZL40515 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Dual Output DVD and CD 4 Channel Laser Diode Drivers |
| ZL40515LCE | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Dual Output DVD and CD 4 Channel Laser Diode Drivers |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。