DSP101 Burr-Brown Corporation, DSP101 Datasheet - Page 5

• Manufacturer Part Number: DSP101
• Description: DSP-Compatible Sampling Single/Dual ANALOG-TO-DIGITAL CONVERTERS
• Manufacturer: Burr-Brown Corporation

ABSOLUTE MAXIMUM RATINGS
DSP101 PIN CONFIGURATION
TYPICAL DSP102 FFT SETUP
V
V
V
Analog Common to Digital Common ................................................... 1V
Control Inputs to Digital Common ............................... –0.5 to V
Analog Input Voltage ..........................................................................
Maximum Junction Temperature .................................................... 150
Internal Power Dissipation ............................................................. 825mW
Lead Temperature (soldering, 10s) ............................................... +300
Thermal Resistance,
Top View
A
A
D
+ to Analog Common .................................................................... +7V
– to Analog Common ....................................................................
Brüel & Kjaer
Digital Signal
to Digital Common ........................................................................ +7V
Model 1049
Generator
CLKOUT
DGND
DGND
CLKIN
VPOT
OSC1
OSC2
MSB
VOS
SSF
V –
V +
VIN
A
A
V
D
±2.75V
10
11
12
13
14
1kHz
1
2
3
4
5
6
7
8
9
JA
, Plastic DIP ............................................ 50
Low-Pass
150kHz
6 Pole,
Filter
DSP101
OPA2604
OPA2604
1/2
1/2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
AGND
REF
CAP
DGND
CONV
SOUT
TAG
XCLK
SYNC
150
150
D
+ 0.5V
o
C/W
–7V
DIP
5V
o
o
C
C
220pF
220pF
5
0.1µF
DSP101 PIN ASSIGNMENTS
+
+
10µF
10µF
PIN #
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
27
26
25
2
1
REF
VINA
VPOTA
VINB
VPOTB
CLKOUT
NAME
DGND
DGND
CLKIN
SYNC
SOUT
CONV
DGND
AGND
VPOT
OSC1
OSC2
XCLK
MSB
VOS
SSF
TAG
CAP
REF
V
VIN
V
V
DSP102
A
A
D
–
+
CLKOUT
SOUTA
CLKIN
CONV
CASC
SYNC
OSC1
XCLK
SSF
DESCRIPTION
Trim Reference Out. 10 F Tantalum to AGND.
Voltage on this pin is approximately 2.75V.
Analog In.
MSB Adjust In.
VOS Adjust In.
–5V Analog Power.
+5V Analog Power.
Digital Ground.
Digital Ground.
+5V Digital Power.
Conversion Clock In.
Conversion Clock Out. Can drive multiple
DSP101/DSP102s to synchronize conversion.
Select Synch Format In. If HIGH, SYNC will be
active High. If LOW, SYNC will be active Low.
See timing diagram (Figure 1).
Oscillator Point 1 Input/External Clock In. If using
external clock, drive with 74HC logic levels.
Connect to DGND if not used.
Oscillator Point 2 Output. Provides drive for
crystal oscillator. Make no electrical connection if
using external clock.
Data Synchronization Out. Active High when SSF
is HIGH; active Low when SSF is LOW.
Data Transfer Clock In.
No Internal Connection.
User Tag In. Data clocked into this pin is
appended to the conversion results on SOUT.
See timing diagram (Figure 1).
No Internal Connection.
Serial Data Out. MSB first, Binary Two’s
Complement format.
Convert Command In. Falling edge puts converter
into hold state, initiates conversion, and transmits
previous conversion results to DSP IC with
appropriate SYNC pulse.
Digital Ground.
No Internal Connection.
No Internal Connection.
No Internal Connection.
Bypass Capacitor. 10 F Tantalum to AGND.
Voltage on this pin is approximately 2.7V.
Reference Bypass. 0.1 F Ceramic to AGND.
Voltage on this pin is approximately 3.8V.
Analog Ground.
22
12
13
11
10
21
16
15
20
DSP101/102
200kHz
8MHz
+5V
÷80
÷2
16MHz TTL Oscillator
Burr-Brown
Processor
Software
ZPB34
DSP
FFT
®