Renard64: Difference between revisions
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Optional (if per/port LEDs are omitted, the non-PWM firmware is used, and unregulated power is brought in through the RJ45 input connector) | Optional (if per/port LEDs are omitted, the non-PWM firmware is used, and unregulated power is brought in through the RJ45 input connector) | ||
1 | 1 625-1N5819-E3 50v 1A Schottkey Diode D1 | ||
1 511-L4940V Regulator, LDO, 5V, 1.5A U1 | 1 511-L4940V Regulator, LDO, 5V, 1.5A U1 | ||
1 140-XRL16V1000-RC 1000 uF, 16V Radial-Lead Elect. Cap C1 | 1 140-XRL16V1000-RC 1000 uF, 16V Radial-Lead Elect. Cap C1 | ||
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7/21/2007 BOM copied from picdimmer forum, on-board regulator made optional | 7/21/2007 BOM copied from picdimmer forum, on-board regulator made optional | ||
7/21/2007 | 7/21/2007 Value of regulator parts (diode, regulator, cap) changed. | ||
7/21/2007 Value of LED current limit resistors changed. | 7/21/2007 Value of LED current limit resistors changed. | ||
Revision as of 20:26, 21 July 2007
Revision XA board (first revision)
Schematic
Layout
BOM
PCB
1 TBA Renard 64-Port PCB
Resistors
3 299-27K-RC 27K Resistor, 1/4 W, Axial (RS485 pull) R5,R8,R14
2 299-1K-RC 1K Resistor, 1/4 W, Axial (RS485 series) R4,R7
1 660-MF1/4DCT52R1200F 120 Resistor, 1/4 W, Axial R6
1 299-330-RC 330 Resistor, 1/4 W, Axial (for LED) R19
2 71-CCF60-15K-E3 15K Resistor, 3/4 W, MF Resistor R1,R2
Capacitors
8 80-C322C104K5R 0.1 uF Radial-lead Ceramic Capacitor C3-C10
1 647-UVR1C100MDD 10 uF, 16V Radial-Lead Elect. Cap C2
Diodes
1 78-1N5229B 4.3v 0.5w Zener D4 (left)
1 78-1N5239B 9.1v 0.5w Zener D4 (right)
1 604-WP7104GT T1 Green LED D5
Connectors
2 571-5202514 AMP Modular Jacks, Right Angle J3, J4
16 571-5564161 AMP Modular Jacks, Top Entry J5-16, J18-21
or
16 538-95003-2881 Molex Modular Jacks, Vertical PCB mount
2 571-6404542 AMP Polarized Header (2-Pin, Straight Post) J1,J17
8 575-199314 14 Pin Low Profile IC Socket U7-U14
ICs
1 782-H11AA1 Optoisolator U6
2 511-ST485BN RS485 Connectors U4,U5
8 579-PIC16F688-I/P PIC16F688, unprogrammed, DIP14, Industrial Temp U7-14
Oscillator
1 520-TCH1843-X Oscillator, 18.432 MHz, 5V, 8-DIP U3
Optional (if per/port LEDs are desired)
64 859-LTL403G LEDs, Rectangular, Green
8 71-CSC08A01-680 Resistor Network, 680 Ohm R10-13, R20-23
8 299-680-RC Resistor, 680 Ohm, 1/4W R15-18, R24-27
Optional (if per/port LEDs are omitted, the non-PWM firmware is used, and unregulated power is brought in through the RJ45 input connector)
1 625-1N5819-E3 50v 1A Schottkey Diode D1
1 511-L4940V Regulator, LDO, 5V, 1.5A U1
1 140-XRL16V1000-RC 1000 uF, 16V Radial-Lead Elect. Cap C1
The on-board regulator should only be used if measures are taken to keep the current consumption down (omitting the on-board LEDs, and using the non-PWM firmware). If the LEDs are used and the PWM firmware is installed, the current consumption if the board is about 1A, and so the regulator will dissipate too much power (the small value of C1 precludes decreasing the input voltage).
Revision History
7/21/2007 BOM copied from picdimmer forum, on-board regulator made optional 7/21/2007 Value of regulator parts (diode, regulator, cap) changed. 7/21/2007 Value of LED current limit resistors changed.
Errata for Rev XA PCB -
1) The trace between J4 and D1 is too small, and needs to be beefed up if the board is configured to draw more than 1/2A through J4. 2) There are two diodes labelled D4. 3) The holes for D1 are too small. 4) The silkscreen reference designator for C3 (above U10) is missing.