Maxim HFRD-34.0 Specifications

Reference Design: HFRD-25.2 Rev.8; 01/09 As of July, 2008 this reference design board is no longer available. Gerber files and schematics are

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 10 of 42 Transmitter Characteristic Graphs (Continued) (TA = +25oC, VC

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 11 of 42 Transmitter Characteristic Graphs (Continued) (TA = +25oC, VC

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 12 of 42 Transmitter Characteristic Graphs (continued) (TA = +25oC, VC

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 13 of 42 Transmitter Characteristic Graphs (continued) (TA = +25oC, VC

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 14 of 42 Transmitter Characteristic Graphs (continued) (TA = +25oC, VC

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 15 of 42 Transmitter Characteristic Graphs (continued) (TA = +25oC, VC

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 16 of 42 Transmitter Characteristic Graphs (continued) (TA = +25oC, V

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 17 of 42 Transmitter Characteristic Graphs (continued)(TA = +25oC, VCC

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 18 of 42 8 Receiver Characteristic Graphs (TA = +25oC, VCC = +3.3V, u

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 19 of 42 Receiver Characteristic Graphs (continued)(TA = +25oC, VCC =

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 2 of 42 Reference Design: Low-Cost GEPON SFF ONT with μCTable of Con

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 20 of 42 9 Application Information 9.1 Design Details HFRD-25.2 provid

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 21 of 42 10 Controls/Features 10.1 Overview Through the use of a low-c

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 22 of 42 10.3 Memory Summary The ATTiny24 microcontroller incorporates

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 23 of 42 0Eh SupplyO: Supply voltage offset for VCC calibration routi

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 24 of 42 7Fh to AFh Microcontroller Stack SRAM B0h to E0h Program Ac

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 25 of 42 10.6 VCC Calibration HFRD-25.2 provides a monitor of the sup

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 26 of 42 operating in continuous-mode operation, the initialization ti

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 27 of 42 11 Firmware 11.1 Overview The sections below provide a brief

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 28 of 42 Figure 2. Simplified top-level state diagram. Top-Level Stat

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 29 of 42 Figure 3. Simplified initialize PWM and pre-charge state dia

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 3 of 42 3 Reference Design Device Details HFRD-25.2 was engineered to

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 30 of 42 Figure 4. Simplified monitor diode sample state diagram. Mo

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 31 of 42 Figure 5. APC loop and modulation-compensation state diagram

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 32 of 42 Figure 6. Simplified update monitors and memory state diag

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 33 of 42 Figure 7. Simplified open-loop state diagram. Open-Loop Sta

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 34 of 42 Figure 8. Simplified disable-loop state diagram. Disable-L

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 35 of 42 Figure 9. Simplified two-wire interface state diagram. Simpl

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 36 of 42 12 Evaluation Quick Start 12.1 Evaluation Notice The HFRD-25.

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 37 of 42 Figure 10. HFRD-25.2 graphical user interface.

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 38 of 42 13 SFF Module PIN Description Component Name Function 1 MIS

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 39 of 42 110HFRD-25.2 TOP View11 20MSMSMSMSATTiny24MAX3747MAX3643Xpon

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 4 of 42 4 Functional Diagram IN+IN-LaserPECL / CMLCompatible InputsMod

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 40 of 42 15 Schematics Figure 12. HFRD-25.2 schematic.

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 41 of 42 16 Board Layout Figure 13. Component placement guide. Fi

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 42 of 42 Figure 16. Board layout, layer 3. Figure 17. Board layo

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 5 of 42 5 Recommended Operating Conditions PARAMETER SYMBOL CONDI

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 6 of 42 Note 2: Time to reach 90% of steady-state value after burst en

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 7 of 42 7 Transmitter Characteristic Graphs (TA = +25oC, VCC = +3.3V,

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 8 of 42 Transmitter Characteristic Graphs (continued) (TA = +25oC, VCC

Reference Design HFRD-25.2 (Rev.8; 01/09) Maxim Integrated Products Page 9 of 42 Transmitter Characteristic Graphs (Continued) (TA = +25oC, VCC