v1.2 changelog - Githubissues

C136 removed
added PoE notification circuit (#66 )
added IC16 and IC13 fast start circuits (#68)
C78 replaced with 10uF (CC0603_10UF_10V_10%_X5R) to reduce BOM (#63)
added TVS protection to EEM (#64)
USB TVS replaced with DRTR5V0U4S-7 to reduce BOM
added C157 and C30 to improve LTM3042 stability (#41)
SMPS shield grounded (#70)
fixed PA0 routing, added series termination from CPU side (#78)
fixed DC jack issue (#75)
added ideal diode and EEM downstream power control (#72)
fixed SMPS: 3.4V -> 3.3V, used FB divider values from DS
added TVS to JTAG (DRTR5V0U4S-7)
Ethernet TVS replaced with right ones that really protect the PHY (DRTR5V0U4S-7)

BOM simplification

C6, C78, C122, C140, C167 : CC0603_10UF_10V_10%_X5R -> CC0805_10UF_25V_10%_X5R
C114: CTE3528-21_22UF_10V_10%_LESR0700 -> CTE3216-18_10UF_16V_20%_AVX_TCJ
C153A/B: CC0402_10UF_6.3V_20%_X5R -> CC0805_10UF_25V_10%_X5R
D1, D22 : BAT54C -> SS16
D8, D9: SMBJ12A -> SS16; no need to use TVS here
D18, D26 : PRTR5V0U2X ->DRTR5V0U4S-7
D2, D4, D5, D6: 1N4148 -> BAV199
R19: 36k -> 2x18k
R70, R71: R0402_100K_1%_0.0625W_100PPM -> R0603_82K_1%_0.1W_100PPM
R95: R0402_30R_1%_0.0625W_100PPM -> R0603_30R_1%_0.1W_100PPM
R143+R142+R29: 10k+20k+20k -> 2x R0603_100K_1%_0.1W_100PPM
R157: R0603_39K_1%_0.1W_100PPM -> R0402_33K_1%_0.0625W_100PPM
R166: R0805_10R_1%_0.125W_200PPM -> 3x R0603_30R_1%_0.1W_100PPM
R145: R0402_220R_1%_0.0625W_100PPM -> R0603_220R_1%_0.1W_100PPM
R68, R154, R159, R160: R0402_1K_1%_0.0625W_100PPM -> R0603_1K_1%_0.1W_100PPM
R146: R0402_20K_1%_0.0625W_100PPM -> R0603_24K_1%_0.1W_100PPM
R35, RR39: R0402_330R_1%_0.0625W_100PPM ->R0603_220R_1%_0.1W_100PPM + R0402_100R_1%_0.0625W_100PPM

sinara-hw / Stabilizer