CDB5541 Cirrus Logic Inc, CDB5541 Datasheet - Page 6

• Manufacturer Part Number: CDB5541
• Description: Development Kit
• Manufacturer: Cirrus Logic Inc

Specifications of CDB5541

• Silicon Manufacturer: Cirrus Logic
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: CS5541
• Features: RS-232 Serial Communication With PC, Chip Control And Data Capture, FFT Analysis
• Kit Contents: Board
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

6
Reference
Reference
Supply.
XOSC.
HDR11.
XREF.
XTAL.
HDR1.
HDR2.
HDR9.
Name
REF.
SW1.
uC.
.
controller Clock
Table 3. MCLK Settings
Selects On-Board
Selects Micro-
Selects Exter-
Board Crystal
Selects External
Description
Selects On-
Supply Voltage
Selects Power
nal MCLK
Description
Reference
Reference
Tests UART/RS-232 communication link
between the microcontroller and the PC.
Table 2. Voltage Reference Settings
Functional Description
Selects MCLK source.
Controls AVR modes.
Selects VREF+.
Selects VREF-.
MCLK
MCLK
MCLK
MCLK
MCLK
MCLK
MCLK
MCLK
MCLK
Table 1. Default Header and DIP Switch Settings
XREF+
XREF+
XREF+
REF+
REF+
REF+
VA-
VA+
VA-
VA+
VA-
VA+
O
O
O
O
O
O
O
O
O
HDR2
O XTAL
O uC
O XOSC
O XTAL
O uC
O XOSC
O XTAL
O uC
O XOSC
O
O
O
O
O
O
O
O
O
O
O
O
HDR11
O VREF+
O VREF+
O VREF+
O VREF+
O VREF+
O VREF+
O VREF+
O VREF+
O VREF+
O VREF+
O VREF+
O VREF+
XREF-
XREF-
XREF-
CS5540
SW1 is OPEN
SW2 is OPEN
SW3 is OPEN
CS5541
SW1 is OPEN
SW2 is CLOSED
SW3 is OPEN
RS-232 Test Mode
SW1 is CLOSED
SW2 is CLOSED
SW3 is CLOSED
REF-
REF-
REF-
VA-
VA+
VA-
VA+
VA-
VA+
RS-232 set to Normal
On-Board Reference.
On-Board Reference.
32.768 kHz Crystal
O
O
O
O
O
O
O
O
O
O
O
O
Eval Board Mode
Default Setting
HDR9
O VREF-
O VREF-
O VREF-
O VREF-
O VREF-
O VREF-
O VREF-
O VREF-
O VREF-
O VREF-
O VREF-
O VREF-
Table 4. DIP Switch SW1 Settings
CS5540
CS5541
Mode.
CDB5540 CDB5541
SW1, SW2, SW3 - OPEN
XREF-
XREF+
XOSC
REF+
XTAL
REF-
uC
VA-
VA+
VA-
VA+
SW1, SW3 - OPEN
Default Jumpers
SW2 - CLOSED
O
O
O
O
O
O
O
O
O
O
O
O
O
SW3 SW2 SW1
SW3 SW2 SW1
SW3 SW2 SW1
SW1 Settings
1
1
1
O
O
O MCLK
O MCLK
O MCLK
O VREF-
O VREF-
O VREF-
O VREF-
O VREF+
O VREF+
O VREF+
O VREF+
OPEN
OPEN
OPEN
DS503DB1
2
2
2
3
3
3