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参数资料
| 型号： | SY88212LMG |
| 厂商： | Micrel Inc |
| 文件页数： | 3/10页 |
| 文件大小： | 0K |
| 描述： | IC LASER DRVR 2.5GBPS 3.6V 24MLF |
| 标准包装： | 75 |
| 类型： | 激光二极管驱动器（光纤） |
| 数据速率： | 2.5Gbps |
| 通道数： | 1 |
| 电源电压： | 3 V ~ 3.6 V |
| 电流 - 电源： | 55mA |
| 电流 - 调制： | 85mA |
| 电流 - 偏置： | 70mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 24-VFQFN 裸露焊盘，24-MLF? |
| 供应商设备封装： | 24-MLF?（4x4） |
| 包装： | 托盘 |
| 安装类型： | 表面贴装 |
| 产品目录页面： | 1089 (CN2011-ZH PDF) |
| 其它名称： | 576-3062 |
Micrel, Inc.
Pin Description
SY88212L
Pin Number
2
3
5
6
7
9
10
12
13
14
16
17
20
22
23
24
8, 11,19
1, 4, 15, 18, 21
Truth Table
Pin Name
DIN+
DIN-
/TXDISABLE
TXDISABLE
/EN
OSC
TXFAULT
PWRMON
BIAS-
BIAS+
MOD+
MOD-
MD
BIASMAX
MODSET
APCSET
GND
VCC
Pin Function
Non-inverting input data. Internally terminated with 50 ? to a reference voltage.
Inverting input data. Internally terminated with 50 ? to a reference voltage.
Transmitter Complementary TXDISABLE. TTL Input. The transmitter is enabled when this pin is
asserted High and disabled when this pin is asserted Low. A 6.3k ? resistor must be installed
between pins 6 and GND if /TXDISABLE is used as TTL input
Transmitter Disable. TTL input. The transmitter is enabled when this pin is asserted Low and
disabled when this pin is asserted High or left open. A 6.3k ? resistor must be installed between
pin 5 and GND if TXDISABLE is used as TTL input.
Active low TTL/CMOS. Internally pulled-up. Pull-down with a 22k ? or lower resistance or apply a
low level signal (<0.8 V) to enable bias and modulation. Keep floating or apply a high level
(>2 V) to disable.
Internal oscillator setting option. Install a 0 ? resistor from this pin to VCC or leave it open to set
the frequency. Refer to the frequency table.
Transmitter Fault Indicator. Open collector. Active High.
Power Monitor. Provides a current which is proportional to the sum of bias current and half of
modulation current. Install a resistor between this pin and GND to convert that current to a
voltage.
Inverting laser bias current output. Pull-up to VCC with a resistor.
Non-inverting laser bias current output, sources current when TXDISABLE is inserted Low (see
pin 6 description) or /TXDISABLE is inserted High (see pin 5 description). Connect to the
cathode of the laser through a resistor.
Non-inverted modulation current output. Provides modulation current when input data is positive.
Inverted modulation current output. Provides modulation current when input data is negative.
Input from the laser monitoring photodiode. Connect to the anode of the photodiode for APC
operation.
Install a resistor between this pin and GND to set the maximum bias current for the closed loop
operation. The APC loop controls the bias current up to the level of BIASMAX. When the bias
current reaches the maximum value set through this pin, the driver continues to sink a current
equal to this maximum. For open loop operations, this pin sets the bias current.
Modulation current setting and control. The modulation current is set by installing an external
resistor from this pin to ground or using a current source.
Bias current setting and control. The bias current is set by installing an external resistor from this
pin to ground or using a current source. Connect a 50K resistor to GND for open loop operation.
Ground. Ground and exposed pad must be connected to the plane of the most negative
potential.
Supply Voltage. Bypass with a 0.1μF//0.01μF low ESR capacitor as close to VCC pin as
possible.
Oscillator Frequency
Output
DIN+
L
DIN-
H
/EN
L
MOD+
H
(1)
MOD-
L
Laser
(2)
L
OSC
Open
VCC
Frequency (MHz)
25
50
H
X
L
X
L
H
L
H
H
L
H
L
Notes:
1.
2.
I MOD = 0 when MOD+ = H.
Assuming that the cathode of the laser is tied to MOD+.
April 2008
3
M9999-040908-A
hbwhelp@micrel.com or (408) 955-1690
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SY88212LMG TR | 功能描述:激光驱动器 3.3V, 2.5 Gbps LDD with APC and monitor function - 24 pin MLF Green RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| SY88212MGTR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:3.3V, 2.5Gbps Laser Diode Driver |
| SY88216L | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:3.3V, 2.5Gbps Burst Mode Laser Driver |
| SY88216L_10 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:3.3V, 2.5Gbps Burst Mode Laser Driver |
| SY88216LMG | 功能描述:激光驱动器 3.3V, 2.5GBps Burst Mode Laser Diode Driver RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
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