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參數(shù)資料
| 型號： | AK2572 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | APC for Burst Mode Applicable Direct Modulation Laser Diode |
| 中文描述： | apc的突發(fā)模式適用的直接調(diào)制激光器 |
| 文件頁數(shù)： | 1/50頁 |
| 文件大小： | 463K |
| 代理商： | AK2572 |
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ASAHI KASEI
[AK2572]
-1-
<MS0290-E-01>
2004/8
AK2572
APC for Burst Mode Applicable Direct Modulation Laser Diode
FEATURES
■
Temperature compensation programming function
(APC_FF) of Bias current (0~85mA) and Modulation
current (0~10mA/0~2.2V) responding to the detected
temperature by the On-chip temperature sensor.
■
Stable feedback function in the digital scheme
(APC_FB).
■
SFP support TXFAULT function and 1k bit ID field
(EEPROM User Area).
■
LD Power leveling function by either Hardware pin
control or Register setting.
■
Various alarm functions of Optical output decline
(OPTALM), Excessive LD current (CURRALM),
Exceptional temperature (TEMPALM) and Irregular
external signals (EXTALM1 and EXTALM2).
■
Operation adjustment function via 2-wire Digital
interface after assembled into sub-system.
■
On-chip Oscillator allows a Self-running operation.
■
Single 3.3 V [Typ.] power supply.
APPLICATIONS
For LD modules applied to Continuous and Burst mode
OUTLINES
The AK2572 enables to keep the optical power of the direct
modulation LD (Laser Diode) constant by the APC
(Automatic Power Control) circuit. It consists of a current
programming function (APC_FF) responding to the
temperature characteristics of each LD, and a Digital
feedback function (APC_FB) to adjust the LD current
based on the monitoring PD (Photo Diode) current.
The AK2572 is also applicable to the Burst mode
transmission. The device equips a Power leveling function
to switch a temperature compensation programming data
by either Hardware pin control or Register setting.
The On-chip EEPROM (Non-volatile memory) allows to
adjust and to keep the individual setting data for each LD
characteristics via 2-wire Digital interface after being
assembled into sub-system. As 1k bits User Area is
allocated in the EEPROM, which supports the ID field of
the SFP specification, a proper operation required for the
SFP module is realized by using the TXFAULT function.
ORDERING GUIDE
Product Number
AK2572
QFN28
（
5.2mm
×
5.2mm
）
BLOCK DIAGRAM
Package Type
I-DAC1
APC
ALM Detection
TEMPALM
CURRALM
EXTALM2
EXTALM1
OSC
TXFAULT*
Ibias
IOUT2
BIAS_GEN
BIAS
RB (12k)
TEMP
-SENS
LDD LD
TEMPMON
2-wire Digital I/F
SCL
SDA* WP**
TXDIS
SHUTDOWN
CONTROL
BIASMON
IOUT1
R_TEMP
Imod
V-DAC3
VOUT3
Vmod
BURST
EXTALM2/MOD_CTRL
DVDD DVSS
AVSS
AVDD
VSSBI
VDDMD
TEST1 TEST2 TEST3 TEST4
VDDBI
EXTALM1
ADC
EEPROM
BIAS
MON
(x0.012)
I-DAC2
OPTALM
PDGAIN
Monitor PD
PDIN
PDMON
Rpd
Cpd
Open Drain
Internally Pulled-up
**:
*:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK2573A | 125M / 156M Laser Diode Driver + APC |
| AK2573AVB | 125M / 156M Laser Diode Driver + APC |
| AK2574 | 156M Laser Diode Driver + APC for Burst Mode |
| AK2574VB | 156M Laser Diode Driver + APC for Burst Mode |
| AK4103A | 192 KHZ 24 BIT DIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK2573A | 制造商:AKM 制造商全稱:AKM 功能描述:125M / 156M Laser Diode Driver + APC |
| AK2573AVB | 制造商:AKM 制造商全稱:AKM 功能描述:125M / 156M Laser Diode Driver + APC |
| AK2574 | 制造商:AKM 制造商全稱:AKM 功能描述:156M Laser Diode Driver + APC for Burst Mode |
| AK2574VB | 制造商:AKM 制造商全稱:AKM 功能描述:156M Laser Diode Driver + APC for Burst Mode |
| AK2581HB-AT | 制造商:ADDA Corporation 功能描述:AC-FAN, 254X89 MM, 115/60 VOLT 制造商:ADDA Corporation 功能描述:AXIAL FAN 254MM 115VAC 620mA 制造商:ADDA Corporation 功能描述:AXIAL FAN, 254MM, 115VAC, 620mA 制造商:ADDA Corporation 功能描述:AK Series 2100/2000 RPM 254 x 89 mm 115 V 680/630 CFM Ball Bearing AC Fan 制造商:ADDA Corporation 功能描述:AXIAL FAN, 254MM, 115VAC, 620mA; Frame Dimensions:254mm x 89mm; Supply Voltage:115VAC; Current Rating:620mA; Flow Rate - Imperial:630cu.ft/min; Flow Rate - Metric:19.244m /min; Noise Rating:62dBA; Bearing Type:Ball; Series:AK25489 ;RoHS Compliant: Yes 制造商:ADDA 功能描述:AK Series 2100/2000 RPM 254 x 89 mm 115 V 680/630 CFM Ball Bearing AC Fan |
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