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IC-HT 数据表(PDF) 13 Page - IC-Haus GmbH |
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IC-HT 数据表(HTML) 13 Page - IC-Haus GmbH |
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13 / 45 page  prel imin ary prel imin ary iC-HT DUAL CW LASER DIODE DRIVER Rev B1, Page 13/45 IO DRIVERS REGISTERS REF2(9:8) 0x19 WATCHDOG TIMER OSCILLATOR LASER CONTROL 0.25V/0.5V APC ACC 0x06 ADC2(7:0) ADCC1(2:0) 0x10 ..10 nF.. VDD REGULATOR LASER CHANNEL 1 0x30 0x3F 1μF 1μF CFGTIMO WATCHDOG 0x17 RMD2(7:0) INTEGRITY RAM 8 Bit CHECK 0x14 ADC1(7:0) LASER CHANNEL 2 DUAL CW LASER DIODE DRIVER A RM1 RM2 VB UNDERVOLTAGE VDD UNDERVOLTAGE OVC PODO OVT MEMERR 0x10 0x03 ADC1(9:8) 0x04 0x05 ADC2(9:8) D 0x02 TEMP(7:0) 0x11 ILIM1(7:0) 0x13 REF1(9:8) PLR REF1(7:0) 0x12 RMD1(7:0) 0x16 ILIM2(7:0) 0x18 0x1F REF2(7:0) SPI/I2C SLAVE RAM 10 Bit A D 8 Bit 0 255 R ..10 nF.. TEMPERATURE MONITOR 8 Bit CVDD CVB I LDK1 M I LDK2 M + - CI1 CI2 + - VDD CIL1 MDA1 AGND1 LDK1 GND VB OVC T.PAD EC1 NSTBY INS/WKR MISO/SDA SCLK/SCL MOSI/A0 NCS/A1 EMC EC2 DCO CI1 LDK2 CI2 CIL2 AGND2 MDA2 MRL2 VB Check NCHK MRL1 REF GND CI2 I LDK1 M I LDK2 M CVDD CVB CI1 Figure 5: iC-HT in iC-WK mode with M-type laser diode In the configuration from figures 4 and 5 pin NSTBY is connected to VB. This is required to force iC-HT leav- ing standby mode and starting normal operation, as the pin includes an internal pull-down resistor. Laser channel enabling Setting pins EC1, EC2 to hi enables the corresponding channels. In order to ensure safe operation of iC-HT, several events automatically disable both output chan- nels: • Pins INS/WKR or EMC left unconnected (IN- SOPEN, EMCOPEN), iC-HT enters error mode and the laser channels cannot be enabled. • Supply power-down either at VB (PDOVB) or VDD (PDOVDD), the laser channels are uncon- ditionally disabled during the power down event. • Overcurrent (OVC) or overtemperature (OVT), laser channels are switched off. Cycling pins EC1, EC2 or a power-up is required to switch on the laser again. |
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