The EL6249C is a four channel laser diode current amplifier that pro- vides controlled current to a grounded laser diode. Channels 2, 3, and 4 should be used as the write channels, with switching speeds ofapproxi- mately one nanosecond rise/fall time. All four channels are summed together at the IOUT output, allowing the user to create multilevel wave- forms in order to optimize laser diode performance. The level of the output current is set by an analog voltage applied to an external resistor which converts the voltage into a current at the IIN pin (virtually ground). The current seen at this pin is then amplified to become a cur- rent source at pin IOu r.
RR1220P-1823-B-M-T5 Price| | | | | | | | | | IC[IR=20 |
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| ForF | 'NP | mii | nU{ | I Sl | ia omitted; | | | | |
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RR1220P-1823-B-M-T5 on stock| DO | D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 | D11 | D12 | D13 | D14 | D15 |
| L | L | L | L | H | L | L | L | H | H | H | H | H | H | L | H |
| 9.2ms | I(L+R) | NORMAL | MICSW OFF | O | O | DATA LOAD |
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| Symbol | Parameter | Min | Typ (Note 4) | Max | Unit | Test Conditions |
| VOH1 | Output High Voltage | vcc - 0.3 | | | V | IOH=-200 yA |
| (Port o in External Bus Mode) | vcc - 0.7 | | | V | IOH=-3.2 mA |
| Vcc - 1.5 | | | V | IOH=-7O mA |
| VOH2 | Output High Voltage | 0.5 VCC | | | V | IOH=-800 yA |
| (RST) | 0.75 VCC | | | V | IOH=-300 yA |
| 0.9 VCC | | | V | IOH=-80 /iA |
| llL | Logical O Input Current (Ports l, 2 and 3) | | | 50 | LLA | VIN=0.45V |
| ILI | Input leakage Current (Port 0) | | | ±10 | y,A | VIN = VIL or VIH |
| ITL | Logical l to O Transition Current (Ports l, 2 and 3) Commercial Express | | | 675 775 | y,A LLA | VIN=2V |
| RRST | RST Pulldown Resistor | 40 | | 225 | Kfl | |
| CIO | Pin Capacitance | | 10 | | pF | @1 MHz250C |
| ICC | Power Supply Current: Active Mode at 12 MHz (Figure 5) at 16 MHz at 20 MHz at 24 MHz ldle Mode at 12 MHz (Figure 5) at 16 MHz at 20 MHz at 24 MHz Power Down Mode | | 15 5 5 | 30 38 47 56 7.5 9.5 11.5 13.5 75 | mA mA mA mA mA mA mA mA | (Note 3) |
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