Analog Devices ADDS-21992-EZLITE, Руководство пользователя

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ADSP-21992 EZ-KIT Lite Evaluation System Manual
4-29
Figure 4-1: EZ-KIT Lite Board Layout
The ADSP-21992 EZ-KIT Lite board can be configured to boot in all of the possible ADSP-
21992 boot modes. For information about configuring the boot mode, see section
4.3.1 .
The DSP core voltage is 2.5V, and the external interface operates at 3.3V. The analog input
signal conditioning circuitry requires
±
2.5V.
4.2.1 Power Supplies
Linear regulators are provided on the ADSP-21992 EZ-KIT Lite board for the 2.5V and 3.3V
required by the ADSP-21992 from a 5V source. The linear regulators also provide the power for
the digital peripheral circuitry on the ADSP-21992 EZ-KIT Lite board.
Linear regulators are also provided for the
±
2.5V from
±
5V sources, required by the analog input
signal-conditioning circuitry.
Appropriate decoupling capacitors are provided on the ADSP-21992 EZ-KIT Lite board for all
power supply inputs (VDD, +AVDD, and -AVDD) to reduce noise coupling from the external
power supplies. However, for best performance, well-regulated external power supplies and
correct wiring are recommended.
ADSP-2199X
EZ LITE BOARD
a
S1
Y1
ADSP-2199x
A12
A6
A5
P4
1
10
VIN0
VIN7
-
AVDD
+
AVD
D
DGND
P1
VDD AGND
P8
PF0 – PF15
EXTERNAL MEMORY INTERFACE
U5 U6
U8
P3 P10
PWM OUTPUTS
U12
U13
JTAG
1
14 13
2
U4
P7
A4
P9
P5
1
10
DAC1
DAC8
A9
P12
Y2
U1
P11
CR5
CR4 CR3 CR2 CR1
Y3
U11
U9
U10
U17
U7
U16
A11
U3
JP4
JP14 JP13
JP15
JP16
JP21
JP18
JP19
JP20
JP17
P2
JP31
JP24
JP27 JP26
JP25
P6
1
10
JP30
JP29
JP28
A6
JP10
JP11
JP12
JP9
JP2
3 2 1
JP3 JP1
1 2 3
P13 P12
JP23
U2
JP22
1 2 3
JUMPER KEY:
: OPEN
: CLOSED
1 2 3
: JUMPER
IN 2-3
POSITION
JP6
JP5
JP7
1 2 3
1 2 3
1 2 3
JP8
1 2 3
ADSP-2199X
EZ LITE BOARD
a
ADSP-2199X
EZ LITE BOARD
a
S1 S1
Y1
ADSP-2199x
A12
ADSP-2199x
A12
A6
A5
P4
1
10
VIN0
VIN7
A6
A5
A6 A6
A5 A5
P4
1
10
VIN0
VIN7
P4
1
10
VIN0
VIN7
VIN0
VIN7
-
AVDD
+
AVD
D
DGND
P1
VDD
P1
VDD AGND
P8
PF0 – PF15
EXTERNAL MEMORY INTERFACE
U5 U6
U8
P3 EXTERNAL MEMORY INTERFACE
U5 U6
U8
U5 U6 U5 U5 U6 U6
U8
P3 P10
PWM OUTPUTS
P10
PWM OUTPUTS
U12
U13
JTAG
1
14 13
2
U12
U13
JTAG
1
14 13
2
JTAG
1
14 13
2
U4
P7
U4
P7
A4
P9
A4 A4
P9 P9
P5
1
10
DAC1
DAC8
A9
P5
1
10
DAC1
DAC8
P5
1
10
DAC1
DAC8
DAC1
DAC8
A9 A9
P12
Y2
U1 U1
P11 P11
CR5 CR5
CR4 CR3 CR2 CR1 CR4 CR4 CR3 CR3 CR2 CR2 CR1 CR1
Y3
U11
U9
U10
U17
U7
U16
A11
U3
JP4 JP4 JP4
JP14 JP13
JP15
JP16
JP14 JP13
JP15
JP16
JP15
JP16
JP21 JP21
JP18
JP19
JP20
JP17
P2
JP18
JP19
JP20
JP17
P2
JP31
JP24
JP27 JP26
JP25
JP31
JP24
JP27 JP26
JP25
P6
1
10
JP30
JP29
JP28
A6
P6
1
10
JP30
JP29
JP28
JP30
JP29
JP28
JP30
JP29
JP28
A6 A6
JP10
JP11
JP12
JP9
JP10
JP11
JP12
JP9
JP2
3 2 1
JP3 JP1
1 2 3
JP3 JP1
1 2 3
P13 P12
JP23
U2
JP22
1 2 3
P13 P12
JP23
U2
JP22
1 2 3
U2
JP22
1 2 3 1 2 3
JUMPER KEY:
: OPEN
: CLOSED
1 2 3
: JUMPER
IN 2-3
POSITION
JUMPER KEY:
: OPEN : OPEN
: CLOSED : CLOSED
1 2 3
: JUMPER
IN 2-3
POSITION
1 2 3 1 2 3
: JUMPER
IN 2-3
POSITION
JP6
JP5
JP7
1 2 3
1 2 3
1 2 3
JP8
1 2 3
JP6
JP5
JP7
1 2 3
JP7
1 2 3
1 2 3
1 2 3
JP8
1 2 3
JP8
1 2 3