CDB5460A Datasheet, PDF (7/28 Pages) Cirrus Logic – Evaluation Board and Software

CDB5460A
Name
J13
J14
J11
J18
J12
J19
J17
J15
J16
J23
JP2
JP4
S1
J21
J10
Function Description
Used to switch VIN+ on the CS5460A between J6
and GND.
Default Setting
VIN+ Set to BNC J6
Default Jumpers
O O VIN+
O O GND
Used to switch VIN- on the CS5460A between J11
and GND.
VIN- Set to BNC J7
Used to switch VA-, A-, and GND. Refer toTable 2
on page 6
Negative Analog
Power Supply Set to
0V
Used to switch the VREFIN from external J26
header, to the on board LT1019 reference, or to the
on-chip reference VREFOUT. Refer to Table
Table 1, “Reference Selection,” on page 5
VREFIN Set to on-
chip reference
VREFOUT
Used to switch VU+, VD+, and VA+ to VDDD
and/or D+. Refer to Table 2, “Power Supply Con-
nections,” on page 6
Digital Power Supply
Set to +5V
Used to connect an external micro-controller.
Connected to 80C51
Used in conjunction with the self test modes to test
the UART/RS-232 communication link between the
microcontroller and a PC.
RS-232 Set to Normal
Mode
Used to switch IIN+ on the CS5460A between J10
and GND.
IIN+ Set to BNC J9
O O VIN-
O O GND
VA- O O GND
A- O O GND
O O LT1019
O O REF+
O O REFOUT
Vu+ O
VD+ O
VD+ O
VA+ O
O VDDD
O VDDD
O D+
O D+
NC
OO
OO
O O IIN+
O O GND
Used to switch IIN- on the CS5460A between J9
and GND.
IIN- Set to BNC J8
O O IIN-
O O GND
Used to switch XIN on the CS5460A to HDR6 when XIN Set for on-board
an external micro-controller is used.
4.096 MHz XTAL
Used to connect PFMON pin on the CS5460A to
monitor Power Supply VA+
PFMON Set Monitor
VA+
Used to connect the RESET Button to the
CS5460A
RESET Set con-
nected to CS5460A
DIP switch to control 80C51 (See Table 4)
S1-1 is used to enable auto-boot mode
S1-2 is used to select crystal to 80C51
S1-3 is used to select RS-232 test mode
S1-1 Auto-Boot off
S1-2 Set 20 MHz
S1-3 Set Normal
Allows LEDs D2 and D3 to indicate pulses on
/EOUT and /EDIR. Pulse frequency must be less
than ~6Hz to see light.
Disable LEDs
Used to disconnect XTAL1 input on microcontroller
from off-board oscillator input.
Use on-board crystal
Table 3. Header, Jumper, and DIP Switch Descriptions
O O GND
O O XIN
O O JP2
O O JP4
1
2
3
OPEN
O O J21
O O J10
7