atr0843 ATMEL Corporation, atr0843 Datasheet
atr0843
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atr0843 Summary of contents
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... Recordable Optical Drives Description The ATR0843 is a laser diode driver designed to operate two differently grounded laser diodes for DVD-RW/+RW (650 nm) and CD-RW (780 nm). The device includes four channels for four different optical power levels. The write channels (channel can be controlled either by fast LVDS (Low Voltage Differential Signaling single-ended standard CMOS logic ...
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... ATR0843 2 Figure 1. Block Diagram I4 E4 NE4 I3 E3 NE3 I2 E2 NE2 IR NER ENABLE ENOSC RFA RFB RSA RSB Channel 4 Channel 3 IOUTA IOUTB Channel 2 Channel 1 Read channel RF oscillator SELA 4820AS–DVD–09/04 ...
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... V power supply +5 V power supply Reference current input read channel (input impedance 500 Reference current input channel 2 (input impedance 500 Reference current input channel 3 (input impedance 500 Reference current input channel 4 (input impedance 500 Ground ATR0843 to ground) to ground) to ground) to ground) 3 ...
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... Parameters Junction ambient, QFN24 Note: 1. Measured with multi-layer test board (JDEC standard) Recommended Operating Range Parameters Supply voltage Input current External resistor to GND to set oscillator frequency External resistor to GND to set oscillator swing Operating temperature range ATR0843 4 Symbol Value V -0 0.5 in ...
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... Ordering Information Extended Type Number ATR0843-PFQG Package Information 4820AS–DVD–09/04 Package Remarks Lead free QFN24 Taped and reeled ATR0843 5 ...
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... Fax: (81) 3-3523-7581 Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...