Cirrus Logic CDB5529 - Manual

1
Copyright  Cirrus Logic, Inc. 1997
(All Rights Reserved)
Cirrus Logic, Inc.
Crystal Semiconductor Products Division
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
CDB5529
CDB5529 Evaluation Board and Software
Features
l RS-232 Serial Communication with PC
l On-board 80C51 Microcontroller
l On-board Voltage Reference
l Lab Windows/CVI TM Evaluation
Software
- Register Setup & Chip Control
- FFT Analysis
- Time Domain Analysis
- Noise Histogram Analysis
l Integrated RS-232 Test Mode
General Description
The CDB5529 is an inexpensive tool designed to evalu-
ate the performance of the CS5529 16-bit Analog-to-
Digital Converter (ADC).
The evaluation board includes an LT1019 voltage refer-
ence, an 80C51 microcontroller, an RS232
driver/receiver, and firmware. The 8051 controls the se-
rial communication between the evaluation board and
the PC via the firmware, thus, enabling quick and easy
access to all of the CS5529’s registers.
The CDB5529 also includes software for Time Domain
Analysis, Histogram Analysis, and Frequency Domain
Analysis.
ORDERING INFORMATION: CDB5529
REF+
AIN+
AIN-
REF-
J1
+5/+2.5 ANALOG -2.5 ANALOG AGND DGND +5/3.3 DIGITAL
VOLTAGE
REFERENCE
CRYSTAL
32768Hz
CS5529
AIN+
AIN-
XIN XOUT
CS
SDI
SDO
SCLK
TEST
SWITCHES
OF
F
ON
1 2 3
80C51
MICROCONTROLLER
RS232
DRIVER/RECEIVER
RS232
CONNECTOR
LEDs
RESET
CIRCUITRY
CRYSTAL
11.0592MHz
D3
D2
D1
D0
HDR6
A1
A0
+5 DIGITAL
AUG ‘97
DS246DB1