1.1A
F2837x controlCARD
Texas Instruments
D
C
A
B
SIZE:
SHEET: OF
PAGE NAME:
TITLE:
COMPANY:
REV:
8
1
TITLE
B
DATE:
5/9/2014
2
1
3
4
5
6
D
C
B
A
NOTES:
1) USB Differential Pairs - 90 Ohm
(A) USB-DM & USB-DP
(B) USB0_GPIO-42 & USB0_GPIO-43
(C) MCU_GPIO-42 & MCU_GPIO-43
2) EMIF - External Memory Interface Impedance Matching from J1 to U1
(A) MCU_GPIO-39:41, MCU_GPIO-44:52, MCU_GPIO-86:94 - Address [0:21]
(B) MCU_GPIO-85, MCU_GPIO-83:53 - Data [0:31]
(C) MCU_GPIO-30 - Clock
3) ADC Differential Pair Impedance Matching
(A) HSEC_ADC even pins should match with HSEC_ADC + 1 pin (ie HSEC_ADC-C2 should match with HSEC_ADC-C3)
(B) MCU_ADC even pins should match with MCU_ADC + 1 pin (ie MCU_ADC-A0 should match with MCU_ADC-A1)
(D) MCU_GPIO-37, 31, 29 - Read/Write/ClkEn Pins
(E) MCU_GPIO-32, 34, 35, 28 - Chip Select Pins
24-Oct-2013
R1.0
R1.1
TI-BL
R1.1
TI-BL
R1.0
05-Jun-2013
Draft
WHO:
SCH REV:
REVISION RECORD
NOTES:
PCB REV:
DATE:
Draft
Draft
Edited SVS circuitry (U3,U4);
Changed power supply (U14) resistors
Changed F28377D (U1) pinout and connector pinout (J1)
Changed ADC VREFHI circuitry (U17,U13)
and switches (SW3, SW4)
R1.1
R1.1
TI-BL
R16: 2K2 to 0R, R72: 0R0 to 100K, R74: 0R0 to 10K
Net Rename: HSEC_ADC-CAL0 & CAL1 to HSEC_ADCIN14 & 15
U1: Swap VREFLOB and VREFLOD to match datasheet
Net Rename: MCU_ADC-CAL0 & CAL1 to MCU_ADCIN14 & 15
U1: Rename ADCINCAL0 & CAL1 to ADCIN14 & 15
09-May-2014
ASSY A
X1: Move to crystal with lower ESR
评论0