diff --git a/hardware/README.md b/hardware/README.md
index 345e1cb..545b00d 100644
--- a/hardware/README.md
+++ b/hardware/README.md
@@ -24,3 +24,4 @@ Most hardware that has been built has a version number
|v0.986.7|Low Power. Changed low power lf clock, added vreg on breakout for optional power testing|
|v0.986.8|Low Power. Changed memory pads, GPS LDO and specified SAMD20E18A-MN with more flash and higher grade packaging|x|
|v0.986.9|Low Power. 80x80mm Breakout|
+|v0.987.0|Low Power. Added 32kHz TCXO RC filters, replaced GPS LDO with MOSFET, remove IMU, vreg on b/out, update SE880 footprint, Watchdog, Radio, filter design
diff --git a/hardware/low-power-side/Parts.md b/hardware/low-power-side/Parts.md
index 8c347bd..9e947be 100644
--- a/hardware/low-power-side/Parts.md
+++ b/hardware/low-power-side/Parts.md
@@ -6,18 +6,19 @@
| Part | Description | Supplier | Quantity Required | Notes
| --- | --- | --- | --- | ---
|ATSAMD20E18A-MN|ATMEL - 32 Bit Microcontroller, SAM D Series, ARM Cortex-M0+, 48 MHz, 256 KB, 32 KB, 32, QFN|[2460535](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2460535)|1|U1
-|SI4468-A2A-IM|SILICON LABS - RF TRANSCEIVER, 0.142-1.05GHZ, HQFN-20|[2462639](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2462639)|1|U2
+|SI4461-C2A-GM|SILICON LABS - RF TRANSCEIVER, 0.142-1.05GHZ, HQFN-20|[2462636](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2462636)|1|U2 Si4461-C
| Telit SE880 | GPS | [Sequoia](http://www.sequoia.co.uk/product.php?id=1761) [Digikey](http://www.digikey.co.uk/product-detail/en/SE880GPSR22R003/943-1028-1-ND/5050348) | 1 | U3
|SST25WF040BT-40I/NP|MICROCHIP - FLASH, 4MBIT, 40MHZ, USON-8|[2414758](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2414758)|1|U4 memory 4Mbit
|X1G0041310008 TG-5006CJ-17H 16.369MHZ|EPSON - CRYSTAL, TCXO, TG-5006CJ-17H, 16.369 MHZ|[2405790](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2405790)|2|U5, U6 TCXO Si4xxx, SE880
-|TPS3123J18DBVT|TEXAS INSTRUMENTS - IC, 1.62V SUPPLY MONITOR SOT-23-5|[1755607](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1755607)|1|U7 watchdog
+|ADM6823WYRJZ-RL7|ANALOG DEVICES - Supervisory Circuit, Manual Reset, Active-Low Reset, 1V-5.5Vin, SOT-23-5|[2457340](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2457340)|1|U7 watchdog Vth = 1.67V, t_WDmin = 1.12s
|SN74LVC1G32DCKR|TEXAS INSTRUMENTS - IC, SINGLE 2 INPUT OR GATE, SMD|[1470880](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1470880)|1|U8 or-gate, watchdog subsystem
|MS560702BA03-50|MEASUREMENT SPECIALTIES - Pressure Sensor, Barometric, 10 mbar, 1200 mbar, 1.8 V, 3.6 V|[2362660](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2362660)|1|U9 MS5607 Pressure / Temperature sensor
|ADP1607ACPZN-R7|ANALOG DEVICES - DC-DC Switching Boost Step Up Regulator, Adjustable, 800mV-3.3Vin, 1.8V-3.3Vout, 1Aout, LFCSP-6|[2254940](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2254940)|1|U10 Boost Reg ADP1607
|TPS73118DBVT|TEXAS INSTRUMENTS - Fixed LDO Voltage Regulator, 1.7V to 5.5V, 30mV Dropout, 1.8Vout, 150mAout, SOT-23-5|[1135388](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1135388)|1|U11 LDO for TXCO
-|MIC94310-GYM5 TR|MICREL SEMICONDUCTOR - Fixed LDO Voltage Regulator, 1.8V to 3.6V, 40mV Dropout, 1.8Vout, 200mAout, SOT-23-5|[2451765](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2451765)|1|U12 LDO for GPS MIC94310-GYM5
+|74LVC1G04GW,125|NXP - IC, LOGIC, INVERTER, SOT-353|[1631683](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1631683)|1|U12 Inverter for GPS switch MOSFET
| SIT1552AI-JF-DCC-32.768 | 32.768kHz TCXO, 1.5 - 3.63 V, 1.5 x 0.8mm CSP | [Mouser](http://www.mouser.co.uk/ProductDetail/SiTime/SIT1552AI-JE-DCC-32768E/?qs=sGAEpiMZZMt8oz%2fHeiymANsH3mGAL6UqdcmVNtl5EmRPF6ciZe04Kw%3d%3d) [Digikey](http://www.digikey.co.uk/product-detail/en/SIT1552AI-JF-DCC-32.768D/1473-1242-1-ND/5035517) | 2 | U13, U14 lf clock, gps lf tcxo clock
|LIS2DH|STMICROELECTRONICS - MEMS Accelerometer, 3-Axis, Digital, X, Y, Z, ± 2g, ± 4g, ± 8g, ± 16g, 1.71 V, 3.6 V, LGA|[2462671](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2462671)|1|U15 3-axis accel I2C. Optional
+|NX2301P|NXP - MOSFET Transistor, P Channel, -2 A, -20 V, 0.1 ohm, -4.5 V, -750 mV|[1894738](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1894738)|1|Q1 P-type MOSFET for GPS switch
----
### Passives
@@ -25,23 +26,22 @@
| Part | Description | Supplier | Quantity Required | Notes
| --- | --- | --- | --- | ---
|XFL4020-222MEC|COILCRAFT - Surface Mount Power Inductor, AEC-Q200 XFL4020 Series, 2.2 µH, ± 20%, Shielded, 0.0235 ohm, 8 A|[2289216](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2289216)|1|L1 2.2µH Boost Converter XFL4020-222
-|0402AF-221XJLU|COILCRAFT - Surface Mount High Frequency Inductor, 0402AF Series, 220 nH, ± 5%, 0402 [1005 Metric], 1.15 GHz|[2285640](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2285640)|1|L2 220nH radio
-|LQG15HN56NJ02D|MURATA - INDUCTOR, 0402 CASE, 56NH±5%|[1343091](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1343091)|1|L3 56nH rf filter
+|0402AF-471XJLU|COILCRAFT - Surface Mount High Frequency Inductor, 0402AF Series, 470 nH, ± 5%, 0402 [1005 Metric], 650 MHz|[2285649](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2285649)|1|L2 470nH radio
+|36501E56NJTDG|TE CONNECTIVITY - Surface Mount High Frequency Inductor, 3650 Series, 56 nH, ± 5%, 0402 [1005 Metric], 1.76 GHz|[1265439](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1265439)|1|L3 56nH rf filter
|L-07C18NJV6T|JOHANSON TECHNOLOGY - Surface Mount High Frequency Inductor, L-07C Series, 18 nH, ± 5%, 0402 [1005 Metric], 0.65 ohm|[1865775](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1865775)|1|L4, L5 18nH rf filter
| L6, L7 | DNP ||| si4xxx rx
|EPL2010-681MLB|COILCRAFT - Surface Mount Power Inductor, EPL2010 Series, 680 nH, ± 20%, Shielded, 0.07 ohm, 1.94 A|[2287364](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2287364)|1|L8 SE880 EPL2010-681
|EPL2010-222MLB|COILCRAFT - Surface Mount Power Inductor, EPL2010 Series, 2.2 µH, ± 20%, Shielded, 0.222 ohm, 978 mA|[2287369](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2287369)|1|L9 SE880 EPL2010-22222
-|MC00625W0402110K|MULTICOMP - Surface Mount Chip Resistor, Thick Film, MC Series, 10 kohm, 62.5 mW, ± 1%, 50 V|[1358069](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1358069)|6|R1, R2, R3, R4, R10, R11 10k
-|CRG0402F100K|TE CONNECTIVITY - Surface Mount Chip Resistor, Thick Film, CRG Series, 100 kohm, 63 mW, ± 1%, 50 V|[2331442](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2331442)|2|R5, R6 100k
-|CPF-A-0402B100KE1|TE CONNECTIVITY - Surface Mount Chip Resistor, Thin Film, AEC-Q200 CPF-A Series, 100 kohm, 62.5 mW, ± 0.1%, 25 V|[2483832](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2483832)|2|R7, R9 100k 0.1%
-|ERA2AEB433X|PANASONIC ELECTRONIC COMPONENTS - Surface Mount Chip Resistor, Metal Film, AEC-Q200 ERA Series, 43 kohm, 63 mW, ± 0.1%, 25 V|[2324785](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2324785)|1|R8 43k 0.1%
-|RC0402JR-070RL|YAGEO (PHYCOMP) - Surface Mount Chip Resistor, Thick Film, RC Series, 0 ohm, 62.5 mW, ± 5%, 50 V, 0402 [1005 Metric]|[9232516](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=9232516)|1|R12 0R
+|MC00625W0402110K|MULTICOMP - Surface Mount Chip Resistor, Thick Film, MC Series, 10 kohm, 62.5 mW, ± 1%, 50 V|[1358069](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1358069)|6|R1, R2, R3, R4, R5, R6, R7, R8 10k
+|ERA2AEB433X|PANASONIC ELECTRONIC COMPONENTS - Surface Mount Chip Resistor, Metal Film, AEC-Q200 ERA Series, 43 kohm, 63 mW, ± 0.1%, 25 V|[2324785](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2324785)|1|R9 43k 0.1%
+|CPF-A-0402B100KE1|TE CONNECTIVITY - Surface Mount Chip Resistor, Thin Film, AEC-Q200 CPF-A Series, 100 kohm, 62.5 mW, ± 0.1%, 25 V|[2483832](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2483832)|2|R10, R11 100k 0.1%
+|CRG0402F100K|TE CONNECTIVITY - Surface Mount Chip Resistor, Thick Film, CRG Series, 100 kohm, 63 mW, ± 1%, 50 V|[2331442](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2331442)|3|R12, R13, R14 100k
+|MCWR04X1004FTL|MULTICOMP - Surface Mount Chip Resistor, Thick Film, MCWR Series, 1 Mohm, 62.5 mW, ± 1%, 50 V|[2447127](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2447127)|2|R15, R16 1M
|GRM1555C1H8R2CA01D|MURATA - SMD Multilayer Ceramic Capacitor, GRM Series, 8.2 pF, ± 0.25pF, C0G / NP0, 50 V, 0402 [1005 Metric]|[1828874](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1828874)|2|C1, C3 8.2pF
-|MC0402N150J500CT|MULTICOMP - SMD Multilayer Ceramic Capacitor, MC Series, 15 pF, ± 5%, C0G / NP0, 50 V, 0402 [1005 Metric]|[1758945](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1758945)|2|C2, C4 15pF
+|MC0402N150J500CT|MULTICOMP - SMD Multilayer Ceramic Capacitor, MC Series, 15 pF, ± 5%, C0G / NP0, 50 V, 0402 [1005 Metric]|[1758945](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1758945)|3|C2, C4, C11 15pF
| C5, C6 | DNP ||| si4xxx rx
|MC0402N101J500CT|MULTICOMP - SMD Multilayer Ceramic Capacitor, MC Series, 100 pF, ± 5%, C0G / NP0, 50 V, 0402 [1005 Metric]|[1758969](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1758969)|3|C8, C9, C10 100pF
-|MC0402B102K500CT|MULTICOMP - SMD Multilayer Ceramic Capacitor, MC Series, 1000 pF, ± 10%, X7R, 50 V, 0402 [1005 Metric]|[1758991](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1758991)|1|C11 1nF
-|GRM155R71E103KA01D|MURATA - SMD Multilayer Ceramic Capacitor, GRM Series, 0.01 µF, ± 10%, X7R, 25 V, 0402 [1005 Metric]|[8819734](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=8819734)|1|C11 10nF LDO NR bypass
+|GRM155R71E103KA01D|MURATA - SMD Multilayer Ceramic Capacitor, GRM Series, 0.01 µF, ± 10%, X7R, 25 V, 0402 [1005 Metric]|[8819734](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=8819734)|1|C12 10nF LDO NR bypass
| C12 | DNP ||| LDO NC
|MC0402X104K100CT|MULTICOMP - SMD Multilayer Ceramic Capacitor, MC Series, 0.1 µF, ± 10%, X5R, 10 V, 0402 [1005 Metric]|[1759380](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1759380)|9|C13, C14, C15, C16, C17, C18, C19, C20, C21 100nF
|GRM155R61E105KA12D|MURATA - SMD Multilayer Ceramic Capacitor, GRM Series, 1 µF, ± 10%, X5R, 25 V, 0402 [1005 Metric]|[2218855](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=2218855)|3|C22, C23, C24, C28 1µF
@@ -59,7 +59,7 @@
| Part | Description | Supplier | Quantity Required | Notes
| --- | --- | --- | --- | ---
|20021121-00010C4LF.|FCI - Board-To-Board Connector, Right Angle, Minitek127 20021121 Series, Surface Mount, Header, 10|[1865279](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1865279) [649-202112100010C4LF](http://uk.mouser.com/Search/Refine.aspx?N=1323043&Keyword=649-202112100010C4LF)|1|JTAG1
-|742792731|WURTH ELEKTRONIK - FERRITE BEAD, 0.09OHM, 1.2A, 0402|[1961698](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1961698)|2|FB1, FB2
+|742792731|WURTH ELEKTRONIK - FERRITE BEAD, 0.09OHM, 1.2A, 0402|[1961698](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1961698)|3|FB1, FB2, FB3
|CG0603MLC-05LE|BOURNS - ESD Protection Device, 25 V, 5 V, 0603, 2|[1828732](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=1828732)|0|ESD1, ESD2
|B57861S0103F040|EPCOS - THERMISTOR, 10K, 1%, NTC, RAD|[679446](http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=679446)|1|External Thermistor
| | Antenna Wire | [ebay](http://www.ebay.co.uk/itm/Ernie-Ball-Custom-Gauge-Guitar-Single-Strings-Electric-or-Acoustic-Pack-6-13-/360959212478 ) | 1 | Ernie Ball .013
diff --git a/hardware/low-power-side/bristol_longshot.brd b/hardware/low-power-side/bristol_longshot.brd
index 4269a48..80ec16e 100644
--- a/hardware/low-power-side/bristol_longshot.brd
+++ b/hardware/low-power-side/bristol_longshot.brd
@@ -6,7 +6,7 @@
-
+
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+
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Richard Meadows 2015
-BRISTOL
-UNIVERSITY
+BRISTOL
+UNIVERSITY
-V0.986.8
-MS5607
+V0.987.0
+MS5607
Atmel SAMD20
ARM SWD
-
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RF
144MHz
434MHz
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University of
BRISTOL
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TXCO
-Si4468
+Si4461
TPS73118
-ADP1607
-MS5607
-TXCO
-2.2µH
-
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+ADP1607
+MS5607
+TXCO
+2.2µH
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-680nH
+680nH
Batt -
-Batt +
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-Connect
-to disable
-boost reg
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+Batt +
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+Connect to
+disable boost
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++
+Boost supply
+2.2µH
+
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+SiT1552
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+NX2301
+NOT gate
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@@ -1674,25 +1703,15 @@ boost reg
<b> 0402</b>
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>NAME
>VALUE
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-<b> 0402</b>
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>NAME
>VALUE
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@@ -3224,8 +3255,8 @@ Metric Code Size 3225
C
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>NAME
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@@ -3345,75 +3446,83 @@ We've spent an enormous amount of time creating and checking these footprints an
-
-<b>EAGLE Design Rules</b>
+
+<b>EAGLE Design Rules Prototypen für PCB-POOL(R)</b>
<p>
-Die Standard-Design-Rules sind so gewählt, dass sie für
-die meisten Anwendungen passen. Sollte ihre Platine
-besondere Anforderungen haben, treffen Sie die erforderlichen
-Einstellungen hier und speichern die Design Rules unter
-einem neuen Namen ab.
-<b>Laen's PCB Order Design Rules</b>
+Wir haben in diesem DRU File alle notwendigen Design Einstellungen vorgenommen, damit Sie Ihre Leiterplatte
+gemäß unseren Mindestanforderungen im Standard bestellen können. Die Optionen Shapes und Misc sind dabei nicht relevant.
+Der minimale und maximale Wert für Roundness Shapes kann frei gewählt werden.
+Bitte beachten Sie, daß die Mindesteinstellungen nicht geändert werden, da ansonsten keine Gewährleistung für eine
+fehlerfreie Produktion übernommen werden kann.<br>
+Abzudeckende Vias können in Masks (unter Limit) eingestellt werden.
+</p>Ihr Beta LAYOUT Team
+<p><p>
+<b>EAGLE Design Rules Prototypes to use with PCB-POOL(R)</b>
<p>
-Please make sure your boards conform to these design rules.
+The design rules in this DRU file have been set to cover our minimum standard requirements, the options Shapes and Misc are not
+relevant. Values for Roundness (Shapes) can be chosen freely. Please do not change these minimum
+requirements to avoid problems during production.<br>
+Covered vias can be set in Masks (Limit).
+
+</p>Your Beta LAYOUT Team
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@@ -4931,7 +4987,6 @@ Please make sure your boards conform to these design rules.
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@@ -4950,12 +5005,10 @@ Please make sure your boards conform to these design rules.
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@@ -4963,17 +5016,16 @@ Please make sure your boards conform to these design rules.
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@@ -4981,87 +5033,75 @@ Please make sure your boards conform to these design rules.
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@@ -5070,22 +5110,450 @@ Please make sure your boards conform to these design rules.
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diff --git a/hardware/low-power-side/bristol_longshot.brd.pdf b/hardware/low-power-side/bristol_longshot.brd.pdf
index c65b5c3..43270bf 100644
Binary files a/hardware/low-power-side/bristol_longshot.brd.pdf and b/hardware/low-power-side/bristol_longshot.brd.pdf differ
diff --git a/hardware/low-power-side/bristol_longshot.brd.png b/hardware/low-power-side/bristol_longshot.brd.png
index fa59ad0..44d2bf5 100644
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diff --git a/hardware/low-power-side/bristol_longshot.sch b/hardware/low-power-side/bristol_longshot.sch
index a8cecb6..80569f0 100644
--- a/hardware/low-power-side/bristol_longshot.sch
+++ b/hardware/low-power-side/bristol_longshot.sch
@@ -982,25 +982,15 @@ chip
<b> 0402</b>
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>NAME
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<b> 0402</b>
@@ -1773,7 +1763,7 @@ chip
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>VALUE
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@@ -2587,6 +2588,7 @@ This standard 0.05" 10-pin connector is for use with the Cortex M0/M3's native S
>NAME
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C
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(SERCOM0)
(TX: PAD2, TXPO: 0x1)
-SST25WF04 4 MBit SPI Flash
+SST25WF04 4 MBit SPI Flash
Si4468 Transciever
Tuned for 434MHz
Radio
@@ -8492,44 +8617,60 @@ DOPO: 0x0)
(EXTINT[4])
(SERCOM1)
-MS5607 Pressure Sensor
+MS5607 Pressure Sensor
ADP1607 Step-Up DC-DC Converter -> 1.8V
Microcontroller
Boost Converter
-Set UART
+Set UART
115200 OSP
-Set UART
-
+Set UART
+
(AIN[0])
-
+
This net is routed around the bottom
of the bottom of the board. This has a
resistance of about 0.1Ω, but current
is < 5mA so drop is < 0.5mV
Nominal output voltage 1.80V
-Using 0.1% resistors most of
-the variablity is in V_FB
+When using 0.1% resistors
+most of the variablity is in V_FB
Specified 1.76V - 1.85V
-LIS2D 3-axis accelerometer
(GCLK_IO[0])
-SiT1552 Low frequency clock
-Bypass Capacitors near
+SiT1552 Low frequency clock
+Bypass Capacitors near
SE880 main feed
-Startup within
+Startup within
300ms
-180ms low
+140ms min low
on reset
-Regulator included to
-cycle power on failure,
-also for power conditioning
-C15 in close
+C15 in close
proximity
XFL4020 is better than
VLF302512MT-2R2M used for
datasheet efficiency
measurements
+Regulator included to
+cycle power on system
+reset
+140ms min high
+on reset
+V_GSth = -1.1V @ Id = 0.1A
+R_DSon = 0.2Ω @ V_GS = -1.8V, Id = 0.1A
+approx. 20mV dropout
+Input C < 15pF
+f_0 = 500kHz-1MHz
+f_0 = 500kHz-1MHz
+1.2V supply for
+power measurements
+Connect to disable
+boost reg
+Use ADM6823WYRJZ
+Vth = 1.62-1.71V
+t_RP = 140-280ms
+t_WD = 1.12-2.4s
+t_WD is 0.93x nominal at -40ºC
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diff --git a/hardware/low-power-side/bristol_longshot.sch.pdf b/hardware/low-power-side/bristol_longshot.sch.pdf
index ddcb632..aef7d49 100644
Binary files a/hardware/low-power-side/bristol_longshot.sch.pdf and b/hardware/low-power-side/bristol_longshot.sch.pdf differ
diff --git a/hardware/low-power-side/bristol_longshot.sch.png b/hardware/low-power-side/bristol_longshot.sch.png
index 4b57508..cba18ce 100644
Binary files a/hardware/low-power-side/bristol_longshot.sch.png and b/hardware/low-power-side/bristol_longshot.sch.png differ
diff --git a/hardware/low-power-side/parts b/hardware/low-power-side/parts
index 1f12523..b5229f0 100644
--- a/hardware/low-power-side/parts
+++ b/hardware/low-power-side/parts
@@ -6,18 +6,19 @@
| Part | Description | Supplier | Quantity Required | Notes
| --- | --- | --- | --- | ---
2460535 1 U1
-2462639 1 U2
+2462636 1 U2 Si4461-C
| Telit SE880 | GPS | [Sequoia](http://www.sequoia.co.uk/product.php?id=1761) [Digikey](http://www.digikey.co.uk/product-detail/en/SE880GPSR22R003/943-1028-1-ND/5050348) | 1 | U3
2414758 1 U4 memory 4Mbit
2405790 2 U5, U6 TCXO Si4xxx, SE880
-1755607 1 U7 watchdog
+2457340 1 U7 watchdog Vth = 1.67V, t_WDmin = 1.12s
1470880 1 U8 or-gate, watchdog subsystem
2362660 1 U9 MS5607 Pressure / Temperature sensor
2254940 1 U10 Boost Reg ADP1607
1135388 1 U11 LDO for TXCO
-2451765 1 U12 LDO for GPS MIC94310-GYM5
+1631683 1 U12 Inverter for GPS switch MOSFET
| SIT1552AI-JF-DCC-32.768 | 32.768kHz TCXO, 1.5 - 3.63 V, 1.5 x 0.8mm CSP | [Mouser](http://www.mouser.co.uk/ProductDetail/SiTime/SIT1552AI-JE-DCC-32768E/?qs=sGAEpiMZZMt8oz%2fHeiymANsH3mGAL6UqdcmVNtl5EmRPF6ciZe04Kw%3d%3d) [Digikey](http://www.digikey.co.uk/product-detail/en/SIT1552AI-JF-DCC-32.768D/1473-1242-1-ND/5035517) | 2 | U13, U14 lf clock, gps lf tcxo clock
2462671 1 U15 3-axis accel I2C. Optional
+1894738 1 Q1 P-type MOSFET for GPS switch
----
### Passives
@@ -25,23 +26,22 @@
| Part | Description | Supplier | Quantity Required | Notes
| --- | --- | --- | --- | ---
2289216 1 L1 2.2µH Boost Converter XFL4020-222
-2285640 1 L2 220nH radio
-1343091 1 L3 56nH rf filter
+2285649 1 L2 470nH radio
+1265439 1 L3 56nH rf filter
1865775 1 L4, L5 18nH rf filter
| L6, L7 | DNP ||| si4xxx rx
2287364 1 L8 SE880 EPL2010-681
2287369 1 L9 SE880 EPL2010-22222
-1358069 6 R1, R2, R3, R4, R10, R11 10k
-2331442 2 R5, R6 100k
-2483832 2 R7, R9 100k 0.1%
-2324785 1 R8 43k 0.1%
-9232516 1 R12 0R
+1358069 6 R1, R2, R3, R4, R5, R6, R7, R8 10k
+2324785 1 R9 43k 0.1%
+2483832 2 R10, R11 100k 0.1%
+2331442 3 R12, R13, R14 100k
+2447127 2 R15, R16 1M
1828874 2 C1, C3 8.2pF
-1758945 2 C2, C4 15pF
+1758945 3 C2, C4, C11 15pF
| C5, C6 | DNP ||| si4xxx rx
1758969 3 C8, C9, C10 100pF
-1758991 1 C11 1nF
-8819734 1 C11 10nF LDO NR bypass
+8819734 1 C12 10nF LDO NR bypass
| C12 | DNP ||| LDO NC
1759380 9 C13, C14, C15, C16, C17, C18, C19, C20, C21 100nF
2218855 3 C22, C23, C24, C28 1µF
@@ -59,7 +59,7 @@
| Part | Description | Supplier | Quantity Required | Notes
| --- | --- | --- | --- | ---
1865279 649-202112100010C4LF 1 JTAG1
-1961698 2 FB1, FB2
+1961698 3 FB1, FB2, FB3
1828732 0 ESD1, ESD2
679446 1 External Thermistor
| | Antenna Wire | [ebay](http://www.ebay.co.uk/itm/Ernie-Ball-Custom-Gauge-Guitar-Single-Strings-Electric-or-Acoustic-Pack-6-13-/360959212478 ) | 1 | Ernie Ball .013