Freescale Semiconductor MPC5748G EVB, Руководство пользователя

Страница: 55 / 88

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Capacitor Types:
470pF - Ceramic COG, 50v 5% 0402
1000pF - Ceramic COG, 50V 5% 0402
4700pF - Ceramic X7R, 50V 10% 0402
0.01uF - Ceramic X7R, 50V 10% 0402
0.1uF - Ceramic X7R, 16V 10% 0402
0.68uF - Ceramic X7R 16V 10% 0805 (Murata GCM219R71C684KA37 )
1.0uF - Ceraminc X7R, 10V 10% 0603 (Taiyo Yuden LMK107B7105KA-T)
2.2uF - Ceraminc X7R, 10V, 10%, 0603 (Taiyo Yuden LMK107B7225KA-TR)
4.7uF - TANT, 12.5V 20% ESR=0.08R 7343
10uF - TANT, 35V 10% ESR=0.125R CC7343-31
4.7uF Alternative (150-78844)- Polymer ALU, 16V 20% ESR=0.08R
7343-18
Place small Caps as close as possible to MCU pins
ADC
Place small caps close to each MCU pin
VDD_HVA VDD_HVB VDD_HVC
VDD_LV
See caps below for Bypass Transistor bulk storage (some on VDD1V2 rail)
VDD_LV (1.25V) Decoupling. Place one of the non DNP caps each side of the device
as close as possible to pin. Distribute other (DNP) caps around rest of pins
Ballast Transistor
Flash
MPC5748G MCU Decoupling and bulk storage
LP Internal Reg Cap
Place
close to
transistor
Place one 0.68uF cap footprint
each side of package
Place 10uF cap to west side of package
(low ESR)
(low
ESR) (low
ESR)
(Murata GCM219R71C684KA37)
(low
ESR) (low
ESR) (low
ESR)
(low
ESR) (low ESR)
2.2uF caps
are DNP.
Place close
to emitter
One of these is DNP. May replace 2 caps with
0.47uF to keep overall capacitance within limits
ADC0_CAP
ADC0_GND
ADC1REF_CAP
ADC1_GND
ADC1_CAP
ADC1_GND
GND
HVA_CAP
GND
HVB_CAP
GND
HVC_CAP
LV_CAP
GND
HVFLA_CAP
GND
LV_CAP B_CAP E_CAP
GND
LVDEC_CAP
GND
E_CAP
GND
Drawing Title:
Size Document Number Rev
Date: Sheet of
Page Title:
Automotive Microcontroller
Applications
East Kilbride, Scotland
SCH-27900 PDF: SPF-27900 A1
MPC5748G 324 BGA Daughter Card
B
Tuesday, August 18, 2015
MPC5748G MCU Decoupling
3 8
Freescale General Business Use
Drawing Title:
Size Document Number Rev
Date: Sheet of
Page Title:
Automotive Microcontroller
Applications
East Kilbride, Scotland
SCH-27900 PDF: SPF-27900 A1
MPC5748G 324 BGA Daughter Card
B
Tuesday, August 18, 2015
MPC5748G MCU Decoupling
3 8
Freescale General Business Use
Drawing Title:
Size Document Number Rev
Date: Sheet of
Page Title:
Automotive Microcontroller
Applications
East Kilbride, Scotland
SCH-27900 PDF: SPF-27900 A1
MPC5748G 324 BGA Daughter Card
B
Tuesday, August 18, 2015
MPC5748G MCU Decoupling
3 8
Freescale General Business Use
C51
0.1UF
DNP
C26
0.1UF
C42
1000pF
C30
0.1UF
C48
1000pF
C61
0.68uF
C40
470pF
C24
0.1UF C50
0.1UF
C59
1.0 UF
C44
0.1UF
C25
0.1UF
DNP
C32
0.1UF
C34
2.2UF
LMK107B7225KA-T
C53
0.1UF
C29
0.68uF
C46
0.1UF
DNP
C43
1uF
LMK107B7105KA-T
C35
0.1UF
C10
2.2UF
DNP
C28
470pF
C33
1000pF
C52
1000pF
C49
1000pF
C23
0.1UF
C20
0.68uF
DNP
C57
0.1UF
C39
0.1UF
+
C4
10UF
DNP
C55
1000pF
C58
1.0 UF
C56
0.1UF
+
C1
10UF
C54
0.1UF
C36
1000pF
C47
1000pF
C9
2.2UF
DNP
+
C2
10UF
DNP
C60
1.0 UF
C8 4700pF
C38
0.1UF
+
C3
10UF
DNP
C41
0.1UF
C31
0.68uF
C27
470pF
C21
0.1UF
DNP
C22
470pF
+
C5
10UF
DNP
C37
1000pF
C45
0.1UF
DNP